####018004513#### FXUS63 KDLH 170846 AFDDLH Area Forecast Discussion National Weather Service Duluth MN 346 AM CDT Sat May 17 2025 .KEY MESSAGES... - Light rain showers continue today and tonight, with minimal accumulations. A light wintry mix is possible early Sunday morning in the Arrowhead. - Below normal temperatures expected this weekend, with highs in the 40s to mid 50s each day. A warming trend is expected through the upcoming work week. - Will need frost and/or freeze headlines for portions of the Northland Sunday and Monday morning, and possibly further into next week. && .DISCUSSION... Issued at 241 AM CDT Sat May 17 2025 Vertically stacked low continues to slowly move eastward this morning, currently centered over northwest WI. Light rain showers continue to rotate around the system, pushing onshore over the northern portion of the North Shore, with activity near and west of Hwy 53 moving southward. Showers continue today and tonight as the system slowly pulls away from the area. Northerly flow will reinforce cooler air over the Northland, with highs 10-20 degrees below normal this weekend. Overnight lows will cool into the 30s tonight, with low 30s in the Arrowhead. For Sunday morning, will be issuing a Freeze Watch for portions of Lake and Cook counties, and a Frost Advisory for Southern Cass and Crow Wing counties. If wind speeds trend downward or skies clear, those products might need expanding. For Monday night, a more significant area will fall below 30 degrees, and expect more widespread freeze headlines. Ridging builds into the area early next week, with a push of drier air southward from central Canada. Trended dewpoints down Monday and Tuesday afternoons, dropping minimum RH values in the low 20s for most of northeast MN and portions of northwest WI. Breezy easterly winds of 10-15kts are expected those afternoons. Strongest winds will be off the lake over areas around the Twin Ports, where moisture will also be a bit higher. Another nearly vertically staked low system will move eastward across the Mid Mississippi River Valley early next week. The Northland remains on the northern side of the system, and latest guidance shows a more dominant dry airmass over the area, preventing significant moisture advection northward. Will keep low rain chances across the southern portions of the area, through mid week, for now. Would not be surprised to see these chances lowered over the next couple days. Temperatures do warm through the week, with highs in the 60s for most of the area by Thursday, and lows in the upper 30s and 40s. && .AVIATION /06Z TAFS THROUGH 06Z SUNDAY/... Issued at 1227 AM CDT Sat May 17 2025 A mix of MVFR and IFR cigs continue across the area tonight with scattered light rain showers rotating under a low pushing eastward through the region. Occasional light showers will continue through the forecast period, with any sites not at IFR falling to IFR around sunrise. Some improvement in cigs back to MVFR is possible during the afternoon. Breezy northwest winds overnight will increase with gusts of 20-25kts through the day tomorrow. && .MARINE /FOR NEAR SHORE WATERS OF WESTERN LAKE SUPERIOR/... Issued at 241 AM CDT Sat May 17 2025 Off and on light rain showers continue through tonight. Winds through this afternoon will be northwesterly at 10 to 15 knots with gusts to 20 knots for most of the South Shore, and up to 25 knots for the Twin Ports and up the North Shore where Small Craft Advisories remain in effect. Winds then diminish a bit and become easterly Saturday night and Sunday. Winds of 5 to 15 knots will be seen on Sunday, with some gusts to 20 knots along the South Shore and at the head of the Lake. A period of stronger easterly winds is expected for next week starting on Monday which may lead to conditions hazardous to small craft. For the open water discussion, refer to the NWS Marquette Area Forecast Discussion at weather.gov/mqt. && .DLH WATCHES/WARNINGS/ADVISORIES... MN...None. WI...None. MARINE...Small Craft Advisory from 9 AM this morning to 7 PM CDT this evening for LSZ140. Small Craft Advisory from 9 AM this morning to 4 PM CDT this afternoon for LSZ141>145. && $$ DISCUSSION...HA AVIATION...HA MARINE...HA ####018010244#### FXUS63 KSGF 170847 AFDSGF Area Forecast Discussion National Weather Service Springfield MO 347 AM CDT Sat May 17 2025 .KEY MESSAGES... - 50-70% chance for showers and thunderstorms tonight into Sunday morning. A Marginal (1 of 5) to Slight (2 of 5) Risk exists for a few thunderstorms that may become capable of producing wind gusts up to 60 mph and hail up to the size of quarters. - The unsettled weather pattern will continue across the area early next week. This includes the potential for strong to severe thunderstorms in addition to localized heavy rainfall and flooding. Uncertainty remains in the exact storm mode and evolution, which will impact main hazards. - Active pattern is forecast to end after Tuesday, with mostly dry and cooler temperatures Wednesday onwards. && .SHORT TERM /THROUGH SUNDAY/... Issued at 345 AM CDT Sat May 17 2025 Current water vapor imagery depicts a hexagonal spinner over MN/WI consistent with a deep vertically stacked low pressure system. South of the low, mid-level dry air is noted within a belt of 80-100 kt westerlies originating from a shortwave over the Baja Peninsula. Extending from the stacked surface low are two cold fronts that are currently draped from MI through MO, and into the southern Plains states. The second cold front will bring northwesterly winds, cooler temperatures this morning (lows in the lower to middle 50s), and drier air. The front is forecast to stall just south of the MO/AR border, so high temperatures will range from the middle 70s in central MO, to the lower 80s along the southern border. Marginal to Slight Risk for severe storms tonight: The stalled cold front boundary is forecast to very slowly lift back north as an effective warm front starting this afternoon as shortwave energy overspreads TX/OK. While the surface front will still be south of the border tonight, the 850 mb front will lift through southern MO. Associated southerly flow will then advect warm and moist air over the surface boundary, bringing 500-1000 J/kg MUCAPE along and south of a Nevada to Eminence line as noted by the 00Z HREF. Warm air advection and isentropic upglide over the front should then force showers and thunderstorms in far southwest MO after 7 PM. These will then spread northeastward along with the lifting warm front, bringing 50-70% chances for rain. Modest 500 mb flow associated with the incoming shortwave should generate 25-40 kts of effective shear, according to RAP forecast soundings. Thus, some thunderstorms may become organized enough to produce wind gusts up to 60 mph, and with mid-level lapse rates at 7-8 C/km and elevated instability, hail up to the size of quarters are also possible. Later overnight, the remnants of storms over southern KS/northern OK may also make it into southern MO. These storms would also pose a wind and hail threat late tonight into early Sunday morning, depending on their longevity. Slight (2 of 5) Risk for severe thunderstorms Sunday: Elevated showers and thunderstorms may continue Sunday morning and into the afternoon along the lifting warm front. Behind the warm front, instability will gradually increase and overspread the area as temperatures warm into the upper 70s and lower 80s and dewpoints in the middle 60s. The HREF mean depicts 1500-2500 J/kg MLCAPE, and RAP/HRRR suggests upwards of 2500-4000 J/kg MUCAPE in extreme SW MO and SE KS. Deep layer shear is also expected to increase to 40-50 kts as stronger southeasterly surface flow undercuts persistent westerly mid- level flow. Therefore, the environment during the day Sunday will be primed for severe weather if storms can continue. Forecast soundings depict 25 to 50 J/kg of capping during the day, though persistent 850 mb warm air advection may promote elevated convection. However, rising heights during the day may suppress the weak synoptic forcing of WAA. Thus, severe thunderstorm development is uncertain during the day Sunday. If storms are able to initiate, supercells will be possible with hail up to golf ball size and wind gusts up to 60 mph. If these happen to be surface-based, a tornado or two cannot be ruled out, especially in the vicinity of the warm front where hodographs will be a bit more curved producing 100-150 m2/s2 0-1 km SRH. Though storm development during the day is uncertain, there will more likely be storms Sunday night. && .LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/... Issued at 345 AM CDT Sat May 17 2025 Slight (2 of 5) Risk for severe thunderstorms Sunday night: While the airmass over the Ozarks will be deeply unstable and sheared, forcing for ascent and convective initiation along and south of the warm front is weak and uncertain. There is a much higher likelihood for storms to develop along the dryline across central KS/OK during the day. These will then progress eastward into our area during the evening and overnight hours. Storm mode and evolution for these are still uncertain as CAMs are all over the place. Initial mode in KS/OK will likely be intense discrete supercells given the environment and shear vectors directly perpendicular to the dryline. However, the evolution is uncertain. Discrete supercells could be maintained as shear vectors persist westerly across our area. On the flip side, efficient cold pools and an increase low-level jet could produce an MCS. Then there could always be a mixed mode of both. Time will tell how this shakes out, but the storm mode/evolution will dictate our most likely hazards. If supercells can be maintained, all hazards including hail up to tennis balls, a couple tornadoes, and 60 mph wind gusts will be possible. If an MCS is the dominant mode, wind gusts up to 60 mph, a couple tornadoes (as low-level shear vectors will be westerly promoting a QLCS spin-up threat), and quarter-sized hail will be the main hazards. Enhanced (3 of 5) Risk for severe thunderstorms Monday: The same sort of setup as Sunday will exist Monday, except slightly more amplified and the dryline shifting a bit eastward into east-central KS/OK. Medium-range guidance suggests MUCAPE greater than 3000 J/kg as dewpoints increase to the upper 60s, and deep-layer shear greater than 50 kts as the flow aloft increases ahead of a deepening trough. Therefore, again, storm development is a low-end scenario during the day Monday, with higher chances Monday evening/night as they move in from the west. Hazards will once again be determined by storm mode/evolution, however, with the initiating dryline shifting eastward, there is a larger/longer window for discrete all- hazards supercells (potentially significant hail) late Monday afternoon/early evening before any potential change in evolution. This combined with the amplified instability/shear parameters is leading to an Enhanced (3 of 5) Risk for the western 2/3rds of our forecast area. Slight (2 of 5) Risk for severe thunderstorms Tuesday: As the potent system translates eastward, severe thunderstorms will once again be possible Tuesday. Global models seem to be a bit more progressive with the warm sector forecast to be along and east of Highway 65 after 12 PM Tuesday. With a crashing cold front progged to accompany a deepening upper-level low severe weather is possible as it moves through our CWA Tuesday afternoon. Hazards are currently uncertain, but given the strong frontal forcing, damaging wind gusts look to be a main hazard. Compounding showers and storms could lead to localized flooding: Along with the chances for severe weather each day, the compounding effect if multiple rounds of showers and storms (especially from heavy rain within severe convection) could lead to localized flooding. The EFI is highlighting 0.6-0.8 values with a shift of the day every day through Tuesday. Despite this, the location of any flooding is highly uncertain right now, as it will depend on where storms go. Due to smoothing of timing and location from every model, most areas in our CWA are forecast to see between 2 and 4 inches through Wednesday. However, if MCSs become the dominant storm mode each night, and end up riding the warm front at the nose of the nocturnal low-level jet, there could definitely be banded areas that see well over 4 inches of rain. For example, the experimental MPAS ensemble puts a band of 7-12 inches total precipitation Saturday through Wednesday across central Missouri. This is not to be taken literally, but it does highlight the scenario of multiple MCSs riding a relatively stationary warm front each day/night. Trends will continue to be monitored. Cooler and drier weather Wednesday onwards: After the potent trough kicks through the region, cooler and drier weather are forecast Wednesday onwards. Highs Wednesday are forecast to be in the lower 60s with lows in the middle 40s Wednesday night. These cooler temperatures will then gradually warm to highs in the middle 70s and lows in the upper 50s by Memorial weekend. Some rain chances return Friday and Saturday within a northwesterly flow regime, but details are currently uncertain. && .AVIATION /06Z TAFS THROUGH 06Z SUNDAY/... Issued at 1240 AM CDT Sat May 17 2025 Medium-high confidence in VFR conditions prevailing at all TAF sites for the entire period. 5-10 kt northwesterly winds beneath mostly clear skies will become light and variable as a high pressure ridge axis lifts through the area between 19-00Z. Following that, light easterly winds will prevail north of a warm front lifting close to the region. This may bring some elevated showers and thunderstorms to the TAF sites during the last few hours of the period (20-40% chance). && .SGF WATCHES/WARNINGS/ADVISORIES... KS...None. MO...None. && $$ SHORT TERM...Price LONG TERM...Price AVIATION...Price ####018007085#### FXUS62 KCAE 170848 AFDCAE Area Forecast Discussion National Weather Service Columbia SC 448 AM EDT Sat May 17 2025 .SYNOPSIS... The weekend looks warm and humid with a few afternoon and evening showers and thunderstorms possible. The next significant chance of rain comes during the middle of next week with warm temperatures persisting. Temperatures are forecast to drop off for late in the week ahead. && .NEAR TERM /THROUGH TONIGHT/... Key Message(s): - A few showers or thunderstorms are possible this morning, while temperatures are expected to remain above normal this afternoon. We continue to watch a line of severe convection moving through TN and into western NC/northwestern SC this morning. The line of thunderstorms should make steady progress toward the southeast and near our western CWA line. However, mid level support for thunderstorms is much lower in our area by sunrise, so expect just remnants to approach the northwestern CWA with possibly a few showers and an isolated thunderstorm by daybreak. Temperatures are going to be mild this morning, only in the mid 70s. Guidance continues to show a weak cold front passing through the region today. The most recent CAM runs indicate the decaying line pushing through the area this morning, then the potential for some redevelopment across the CSRA and into the eastern Midlands this afternoon. SPC maintains a Marginal (1/5) risk for severe weather in their latest Day 1 SWO, mainly for the threat of damaging thunderstorm winds. That said, a few model soundings are showing in excess of 1000 J/kg of SBCAPE already in play by late this morning, likely influenced by our mild temperatures and dewpoints in the mid to upper 60s as we start warming for the day. While I think overall coverage will be low, I can't rule out one or two severe thunderstorms through the day. It will be breezy at times across the forecast area this afternoon along and ahead of the front with a tightened surface pressure gradient. Temperatures should reach the upper 80s to low 90s for highs this afternoon, though any precip and the continuous cirrus may slightly impact these values. Skies should begin clearing a bit by tonight with lows around 70 degrees. && .SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/... Key Message(s): - Continued warm, with a slight reprieve of humidity on Sunday. - Chances for afternoon showers and thunderstorms each afternoon. Sunday and Sunday night: Upper low continues to trek across the Great Lakes into New England, resulting in a transition from zonal flow aloft to start the day to more northwesterly. This transition is forecast to bring slightly drier air into the area as dew points are anticipated to be in the lower to mid 60s in the afternoon. The front that passed through the area is expected to be just south of the area for the day, but remain close enough that some afternoon showers and thunderstorms are possible in the southern portion of the forecast area. The HREF mean is indicating surface based CAPE in the 500-1000 J/kg range and 0-6 km bulk shear around 40 kts in that area, which is sufficient enough to produce a stronger storm should thunderstorms develop. Afternoon highs are expected to be near 90 again with some variation dependent on convection. Monday and Monday night: The upper low in New England continues to track eastward Monday, allowing for a ridge to build overhead. This ridge should allow for temperatures to be slightly warmer than Sunday. A weak shortwave is forecast to move across the area during the afternoon and the frontal boundary to our south is forecast to lift northward some. As a result, there is mainly a slight chance for afternoon showers and thunderstorms once again and the humidity is forecast to creep back up as dew points return to around 70. && .LONG TERM /TUESDAY THROUGH FRIDAY/... Key Message(s): - Warm and humid conditions continue into midweek, with showers and thunderstorms possible each afternoon. - Relatively cooler and drier air filters in for the end of the work week. Upper ridging begins to shift eastward into midweek as an upper low and associated trough dig into the central CONUS. This is expected to aid in lifting the frontal boundary northward, keeping temperatures above normal and dew points on the higher side for this time of year. This along with embedded upper shortwaves are forecast to bring chances of shower or thunderstorm activity. As the upper trough moves east, an associated cold front is forecast to move toward and through the forecast area midweek, which brings a higher chance of showers/storms to the region. Latest guidance indicates temperatures get closer to normal after the front passes and a relief from the humidity is anticipated. Chances for precipitation are also forecast to decrease for the end of the week. && .AVIATION /09Z SATURDAY THROUGH WEDNESDAY/... Mainly VFR Conditions Expected through the TAF Period. Plenty of high level cloudiness will be streaming across the region overnight and through much of the day on Saturday. This should be the primary cloud group for much of the period at all taf locations. Exception may be at ags/dnl sites Saturday morning shortly after sunrise, where a brief ceiling around 5kft may be found as diminishing area of showers moves in from the northwest ahead of an approaching cold front. Most guidance is indicating that showers will be all but gone as these clouds push through the CSRA, and will no longer include any vcsh at those locations due to low confidence. Otherwise, southwesterly winds should be stronger at the TAF sites on Saturday as the front passes through the region, with some wind gusts around 25 knots at all taf locations during the afternoon hours. EXTENDED AVIATION OUTLOOK... Mainly VFR conditions expected through the period barring low end chances for showers and thunderstorm each afternoon which could cause brief restrictions. && .HYDROLOGY... Most rivers are either near crest, or have already crested and are falling. However, periodic releases along the Broad and Saluda Rivers are causing fluctuations downstream in the Congaree. The gage at Columbia will likely stay below advisory levels, but could briefly rise to advisory level as these fluctuations occur. Downstream the gage at Carolina Eastman is decreasing quickly and likely will drop below flood stage, but there's a good chance (50%) that the levels rise above flood stage once again. Expect river flooding to continue along the Congaree River through Gadsen, and along both the North and South forks of the Edisto River. River levels will generally continue to fall through the weekend. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...None. GA...None. && $$ ####018009239#### FXUS65 KBYZ 170848 AFDBYZ Area Forecast Discussion National Weather Service Billings MT 248 AM MDT Sat May 17 2025 .KEY MESSAGES... - Scattered showers and a few thunderstorms over the west half of our forecast area today. - Showers and thunderstorms become more numerous on Sunday. Stronger storms could produce localized heavy rain. Southeast winds will gust 40-50 mph from Baker to Ekalaka Sunday. - Light to moderate precipitation will become more widespread Sunday night into Monday. Precipitation will come to an end from west to east later Monday into Tuesday. - Significant rain totals Sunday into Monday may cause localized flooding over recent burn scars and areas with saturated ground. Increased flows on area waterways can also be expected. - Unsettled weather continues through the work-week. && .DISCUSSION... Today through Sunday... Weak zonal shortwave moving thru eastern MT continues to produce isolated showers over western and central zones. We are finally seeing some drying from the west, and this is notable on the latest 700mb analysis, so fully expect this activity to diminish over the next few hours...probably before sunrise. Current dewpt depressions are low enough for at least a mention of patchy fog across much of the area early this morning. In addition, Baker & Alzada stand at 36F as of 130am, so expect localized frost in our eastern valleys early today. Satellite imagery shows a deepening trof along the Pacific coast and flow across the northern great basin starting to back to the southwest. The departing wave to our east and falling pressures to our west will bring a shift to easterly winds today. Temps will jump a few more degrees and highs today will be widespread in the 60s to near 70F. The easterly winds and warming mid levels may result in a bit of mid level capping today. High res models are in some disagreement here but by late afternoon surface temps should be warm enough to achieve 250-500 j/kg of SBCAPE with little CIN. Scattered (west) to isolated (central) pops should suffice for today. Greater shower potential emerges by this evening in our west per ascent from the upstream trof. If there is enough capping to slow down weak convection today, the trofs arrival should overcome that by evening. None of today's activity will be severe, due to very modest instability and shear. Shower potential continues through tonight in our west. This will be followed by a high (40% east to 90% west) chance of showers and t-storms across the region on Sunday. Secondary trof from the north Pacific drops thru the PacNW and forms a low over ID, while the initial trof lifts into WY/CO. There are some complex interactions here and thus there is still plenty of ensemble spread in magnitude and locations of heaviest rainfall beginning Sunday. See details in the extended discussion below. Sunday's convection has potential to be a bit stronger (CAPE of 500-1000 j/kg and bulk shear near 30kts) and it will definitely be wetter as the SE low level flow taps into plains moisture (pushing pwats to near 0.80" or 1-2 standard deviations above normal). Greatest instability seems to set up in our central zones, from roughly Billings to Hardin and Sheridan, along inverted trof axis. It is in this area that the 00z HREF shows a couple of weak updraft helicity tracks. Cannot rule out some stronger storms in this area tomorrow afternoon, but it is also possible that cloud cover and shower development early in the day will prohibit this from happening. Something to watch. Convection has the potential to produce heavy rain and this includes the Flood Watch area (southern Big Horn and Sheridan Counties). One last item to consider. Pressure falls in our central zones on Sunday will allow for increasing SE winds over our east, strongest near the Dakotas line. Current indications are for 40-50 mph gusts from Baker to Ekalaka. There is a 50-60% chance of gusts reaching 50 mph in this area. Temps on Sunday will max out in the mid 50s to lower 70s, warmest in an area from Billings-Sheridan to Miles City-Broadus, as the SE winds keep things cooler in our far east. JKL Sunday Night through Saturday... As cooler air moves in and atmospheric instability decreases, the threat of thunderstorm induced heavy rain will come to an end Sunday evening and night. With that said, scattered to widespread precipitation is likely to continue Sunday night into Monday over much of the area with support from a developing closed low near western South Dakota and Nebraska (70 to 95 percent chance). While precipitation associated with this low will generally be more light to moderate, deep atmospheric moisture profiles look to persist through Monday over eastern Montana, so pockets of persistent moderate rain could still pose a risk of flooding over recent burn scars and areas with saturated soils. Because Monday's precipitation will be associated with an area of low pressure south and east of our area, the westward extent of precipitation looks to set up somewhere near Billings. Therefore, areas west of Billings only have a moderate chance of seeing precipitation continue into the day Monday (20 to 60 percent chance), but areas east of Billings continue to have a high chance, 70 to 95 percent. By late Monday into Tuesday morning, the low will move farther east and precipitation will come to an end from west to east across our area. When all is said and done, precipitation amounts between Sunday and Monday across the region look to be healthy once again. During this time, the National Blend of Models (NBM) continues to advertise high chances of seeing at least a half inch of precipitation across our whole area (50 to 90 percent chance), and moderate to high chances of seeing an inch or more of precipitation mainly east of Livingston (50 to 70 percent chance). With cooler air moving in for Monday, not all this precipitation will fall as rain. Look for snow levels to drop to around 6000 to 7500 feet Monday across the region. With this, a couple inches of snow is forecast over the mountains with this event once again, but the chance of seeing significant snow is generally low (10 to 40 percent chance of 8 or more inches of snow, highest in the Bighorn Mountains). Because of the previously mentioned threat of heavy rain and flooding over recent burn scars and areas with saturated soils, the Flood Watch for portions of south-central Montana and north- central Wyoming around the Bighorn and Pryor Mountains from Sunday afternoon through Monday afternoon remains in good shape, and no changes or additions will be made on this shift. Active weather looks to continue through the rest of the work week behind this early week system with progressive zonal flow in place. During this time, scattered showers and thunderstorms will be possible most days, but the lack of any significant system or moisture will inhibit any continued threat of heavy rain. Arends && .AVIATION... Isolated light rain showers continue to affect western and central zones as of 07z. Local MVFR is possible, and the precip should finally taper off before sunrise. There is a low risk (<20%) of fog at all terminals early this morning. Any fog that develops will dissipate by 15z. Expect scattered showers and isolated thunderstorms this afternoon and evening, beginning around 19z in the west, and affecting western and central parts of the forecast area with local MVFR. Mountain tops will be occasionally obscured. Winds will shift to easterly today and gusts could approach 30 knots in the east tonight. JKL && .PRELIMINARY POINT TEMP/POPS... Tdy Sun Mon Tue Wed Thu Fri ------------------------------------------------------- BIL 068 049/065 045/053 043/066 044/068 047/068 045/067 2/T 29/T 97/W 43/W 53/T 35/T 43/T LVM 065 044/055 036/057 038/063 038/066 041/065 039/067 4/T 69/T 75/W 24/T 52/T 35/T 33/T HDN 070 049/069 045/051 042/066 042/068 044/070 045/068 2/T 29/T 98/W 54/W 54/T 35/T 43/W MLS 068 047/069 045/051 042/061 041/066 045/069 046/066 1/B 14/T 99/W 74/W 34/W 24/W 43/W 4BQ 067 047/070 043/047 041/058 040/064 045/068 046/066 1/B 26/T 99/W 74/W 34/W 13/W 43/W BHK 063 040/058 040/050 037/053 036/062 039/067 041/064 0/B 24/T 89/W 85/W 33/W 23/W 43/W SHR 068 044/070 039/048 038/063 037/066 040/070 040/066 3/T 29/T 99/W 64/W 44/T 14/T 33/T && .BYZ WATCHES/WARNINGS/ADVISORIES... MT...Flood Watch in effect from Sunday afternoon through Monday afternoon FOR ZONES 138-169-171. WY...Flood Watch in effect from Sunday afternoon through Monday afternoon FOR ZONES 198-199. && $$ weather.gov/billings