Alert archive / Illinois / Gale Warnings in 2021
Gale Warning 8, NWS Chicago, IL
NWS Chicago, IL issued this gale warning at Mar 17, 2021, 3:31 AM CDT. It took effect at Mar 18, 2021, 4:00 AM CDT. It was in force for 18 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 17, 2021, 3:31 AM CDT (08:31 UTC)
- In effect from
- Mar 18, 2021, 4:00 AM CDT
- Expired
- Mar 18, 2021, 10:01 PM CDT
- In force
- 18 hr
- Issued by
- NWS Chicago, IL
The text
As transmitted.
593 WHUS73 KLOT 170831 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 331 AM CDT Wed Mar 17 2021 LMZ740>745-171645- /O.NEW.KLOT.SC.Y.0025.210317T2100Z-210318T0900Z/ /O.UPG.KLOT.GL.A.0004.210318T0900Z-210319T0900Z/ /O.NEW.KLOT.GL.W.0008.210318T0900Z-210319T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 331 AM CDT Wed Mar 17 2021 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM CDT THURSDAY... ...GALE WARNING IN EFFECT FROM 4 AM THURSDAY TO 4 AM CDT FRIDAY... * WHAT...For the Gale Warning, northeast gales to 40 kt with significant waves up to 13 ft and occasional waves up to 17 ft. For the Small Craft Advisory, northeast winds up to 30 kt with significant waves up to 9 ft and occasional waves up to 12 ft. * WHERE...Illinois and Indiana nearshore waters. * WHEN...For the Gale Warning, from 4 AM Thursday to 4 AM CDT Friday. For the Small Craft Advisory, from 4 PM this afternoon to 4 AM CDT Thursday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$
7 follow-up statements
064 WHUS73 KLOT 171412 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 912 AM CDT Wed Mar 17 2021 LMZ740>745-172215- /O.CON.KLOT.SC.Y.0025.210317T2100Z-210318T0900Z/ /O.CON.KLOT.GL.W.0008.210318T0900Z-210319T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 912 AM CDT Wed Mar 17 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM CDT THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 4 AM THURSDAY TO 4 AM CDT FRIDAY... * WHAT...For the Gale Warning, northeast gales to 40 kt with significant waves up to 13 ft and occasional waves up to 17 ft. For the Small Craft Advisory, northeast winds up to 30 kt with significant waves up to 9 ft and occasional waves up to 12 ft. * WHERE...Illinois and Indiana nearshore waters. * WHEN...For the Gale Warning, from 4 AM Thursday to 4 AM CDT Friday. For the Small Craft Advisory, from 4 PM this afternoon to 4 AM CDT Thursday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$
022 WHUS73 KLOT 172011 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 311 PM CDT Wed Mar 17 2021 LMZ740>745-180415- /O.CON.KLOT.SC.Y.0025.210317T2100Z-210318T0900Z/ /O.CON.KLOT.GL.W.0008.210318T0900Z-210319T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 311 PM CDT Wed Mar 17 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 4 AM THURSDAY TO 4 AM CDT FRIDAY... * WHAT...For the Gale Warning, northeast gales to 40 kt and waves 10 to 14 ft expected. For the Small Craft Advisory, northeast winds to 30 kt and waves 6 to 9 ft expected. * WHERE...Portions of Lake Michigan. * WHEN...For the Gale Warning, from 4 AM Thursday to 4 AM CDT Friday. For the Small Craft Advisory, until 4 AM CDT Thursday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$
816 WHUS73 KLOT 180300 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 1000 PM CDT Wed Mar 17 2021 LMZ740>745-181100- /O.CON.KLOT.SC.Y.0025.000000T0000Z-210318T0900Z/ /O.CON.KLOT.GL.W.0008.210318T0900Z-210319T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 1000 PM CDT Wed Mar 17 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT THURSDAY... ...GALE WARNING REMAINS IN EFFECT FROM 4 AM THURSDAY TO 4 AM CDT FRIDAY... * WHAT...For the Gale Warning, northeast gales to 40 to 45 kt and waves 10 to 14 ft expected. For the Small Craft Advisory, northeast winds to 30 kt and waves 6 to 9 ft expected. * WHERE...Illinois and northwest Indiana nearshore waters. * WHEN...For the Gale Warning, from 4 AM Thursday to 4 AM CDT Friday. For the Small Craft Advisory, until 4 AM CDT Thursday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ Carlaw
242 WHUS73 KLOT 180839 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 339 AM CDT Thu Mar 18 2021 LMZ740>745-181645- /O.EXP.KLOT.SC.Y.0025.000000T0000Z-210318T0900Z/ /O.CON.KLOT.GL.W.0008.210318T0900Z-210319T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 339 AM CDT Thu Mar 18 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CDT FRIDAY... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CDT EARLY THIS MORNING... * WHAT...Northeast gales to 40 to 45 kt and waves 10 to 14 ft occasionally to 18 ft. * WHERE...Illinois and northwest Indiana nearshore waters. * WHEN...Until 4 AM CDT Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$
651 WHUS73 KLOT 181347 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 847 AM CDT Thu Mar 18 2021 LMZ740>745-182200- /O.CON.KLOT.GL.W.0008.000000T0000Z-210319T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 847 AM CDT Thu Mar 18 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CDT FRIDAY... * WHAT...Northeast gales to 40 to 45 kt and waves 10 to 14 ft occasionally to 18 ft. * WHERE...Illinois and northwest Indiana nearshore waters. * WHEN...Until 4 AM CDT Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$
966 WHUS73 KLOT 181929 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 229 PM CDT Thu Mar 18 2021 LMZ740>745-190415- /O.CON.KLOT.GL.W.0008.000000T0000Z-210319T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 229 PM CDT Thu Mar 18 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CDT FRIDAY... * WHAT...Northeast gales to 40 kt and waves 8 to 11 ft occasionally to 14 ft, easing to gales to 35 kt late this evening. * WHERE...Illinois and northwest Indiana nearshore waters. * WHEN...Until 4 AM CDT Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$
210 WHUS73 KLOT 190301 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 1001 PM CDT Thu Mar 18 2021 LMZ740>745-191115- /O.CAN.KLOT.GL.W.0008.000000T0000Z-210319T0900Z/ /O.NEW.KLOT.SC.Y.0026.210319T0301Z-210319T2100Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 1001 PM CDT Thu Mar 18 2021 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT FRIDAY... ...GALE WARNING IS CANCELLED... * WHAT...Northeast to 30 kt. Significant waves to 11 ft, occasionally to 14 ft. The Gale Warning is no longer in effect. * WHERE...Northeast Illinois and northwest Indiana nearshore waters. * WHEN...Until 4 PM CDT Friday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...A few lingering 35 kt gales are possible across parts of the Illinois nearshore through midnight, but wind speeds will continue to ease tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Carlaw
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 3:31 AM CDT | Small Craft Advisory | LOT | 24 hr | |
| Mar 17, 3:39 AM CDT | Lakeshore Flood Advisory | LOT | Cook, Lake | 46 hr |
| Mar 17, 2:35 PM CDT | Wind Advisory | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 28 hr |
Nearby
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.