WHUS53 KLOT 150711
SMWLOT
LMZ741>744-779-150915-
/O.NEW.KLOT.MA.W.0067.241015T0711Z-241015T0915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Chicago/Romeoville
211 AM CDT Tue Oct 15 2024

The National Weather Service in Chicago has issued a

* Special Marine Warning for...

  Nearshore Waters from Wilmette Harbor to Calumet Harbor...
  Nearshore Waters from Calumet Harbor to Burns Harbor...
  Open Waters from Wilmette Harbor to Michigan City out to Mid
  Lake...

* Until 415 AM CDT.

* At 209 AM CDT, severe thunderstorms capable of producing
  waterspouts were located along a line extending from 9 nm northeast
  of Harrison-Dever Crib to near Indiana Harbor, moving south at 15
  knots.

  HAZARD...Waterspouts, wind gusts 34 knots or greater, and small 
           hail.

  SOURCE...Radar.

  IMPACT...Waterspouts can easily overturn boats and create locally 
           hazardous seas. Small craft could be damaged in briefly 
           higher winds and suddenly higher waves.

* Locations impacted include...
  Harrison-Dever Crib, Wilmette Harbor, Monroe Harbor, Calumet
  Harbor, Indiana Harbor, Montrose Harbor, Hammond Marina, Jackson
  Park Harbor, Belmont Harbor, Marina Shores at Dune Harbor, 59th
  Street Marina, and Diversy Harbor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Thunderstorms can produce sudden waterspouts. Waterspouts can easily
overturn boats and create locally hazardous seas. Seek safe harbor
immediately.

&&

LAT...LON 4162 8733 4164 8742 4168 8742 4167 8747
      4169 8750 4172 8753 4175 8753 4179 8758
      4189 8761 4189 8760 4190 8762 4196 8764
      4196 8763 4208 8768 4211 8760 4212 8726
      4164 8716 4162 8726 4162 8732 4161 8732
TIME...MOT...LOC 0709Z 353DEG 14KT 4204 8743 4171 8742 

WATERSPOUT...POSSIBLE
HAIL...<.75IN
WIND...>34KTS

$$

Petr