Alert archive / Illinois / Small Craft Advisories in 2021
Small Craft Advisory 13, NWS Chicago, IL
NWS Chicago, IL issued this small craft advisory at Feb 5, 2021, 5:54 PM CST. It took effect at Feb 5, 2021, 6:00 PM CST. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Feb 5, 2021, 5:54 PM CST (23:54 UTC)
- In effect from
- Feb 5, 2021, 6:00 PM CST
- Expired
- Feb 6, 2021, 9:00 AM CST
- In force
- 15 hr
- Issued by
- NWS Chicago, IL
The text
As transmitted.
396 WHUS73 KLOT 052354 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 554 PM CST Fri Feb 5 2021 LMZ743>745-060800- /O.EXP.KLOT.GL.W.0005.000000T0000Z-210206T0000Z/ /O.CON.KLOT.UP.W.0001.000000T0000Z-210206T1500Z/ /O.NEW.KLOT.SC.Y.0013.210206T0000Z-210206T1500Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 554 PM CST Fri Feb 5 2021 ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 9 AM CST SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CST SATURDAY... ...GALE WARNING WILL EXPIRE AT 6 PM CST THIS EVENING... * WHAT...For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. For the Small Craft Advisory, west winds to 30 kt. Significant waves to 8 ft. Occasional waves to 10 ft. * WHERE...Calumet Harbor IL to Gary IN, Gary to Burns Harbor IN and Burns Harbor to Michigan City IN. * WHEN...Until 9 AM CST Saturday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ740>742-060800- /O.EXP.KLOT.GL.W.0005.000000T0000Z-210206T0000Z/ /O.NEW.KLOT.SC.Y.0013.210206T0000Z-210206T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 554 PM CST Fri Feb 5 2021 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM CST SATURDAY... ...GALE WARNING WILL EXPIRE AT 6 PM CST THIS EVENING... * WHAT...West winds to 30 kt. Significant waves to 4 ft. * WHERE...Winthrop Harbor to Wilmette Harbor IL, Wilmette Harbor to Northerly Island IL and Northerly Island to Calumet Harbor IL. * WHEN...Until 3 AM CST Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
3 follow-up statements
364 WHUS73 KLOT 060353 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 953 PM CST Fri Feb 5 2021 LMZ743>745-061200- /O.CON.KLOT.UP.W.0001.000000T0000Z-210206T1500Z/ /O.CON.KLOT.SC.Y.0013.000000T0000Z-210206T1500Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 953 PM CST Fri Feb 5 2021 ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 9 AM CST SATURDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST SATURDAY... * WHAT...For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. For the Small Craft Advisory, west winds to 30 kt. Significant waves to 8 ft. Occasional waves to 10 ft. * WHERE...Gary to Burns Harbor IN, Burns Harbor to Michigan City IN and Calumet Harbor IL to Gary IN. * WHEN...Until 9 AM CST Saturday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ740>742-060900- /O.CON.KLOT.SC.Y.0013.000000T0000Z-210206T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 953 PM CST Fri Feb 5 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST SATURDAY... * WHAT...West winds to 30 kt. Significant waves to 4 ft. * WHERE...Northerly Island to Calumet Harbor IL, Winthrop Harbor to Wilmette Harbor IL and Wilmette Harbor to Northerly Island IL. * WHEN...Until 3 AM CST Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
814 WHUS73 KLOT 060941 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 341 AM CST Sat Feb 6 2021 LMZ743>745-061500- /O.CON.KLOT.UP.W.0001.000000T0000Z-210206T1500Z/ /O.CON.KLOT.SC.Y.0013.000000T0000Z-210206T1500Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 341 AM CST Sat Feb 6 2021 ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. For the Small Craft Advisory, west winds to 25 kt. Significant waves to 6 ft. Occasional waves to 8 ft. * WHERE...Gary to Burns Harbor IN, Burns Harbor to Michigan City IN and Calumet Harbor IL to Gary IN. * WHEN...Until 9 AM CST Saturday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
977 WHUS73 KLOT 061453 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 853 AM CST Sat Feb 6 2021 LMZ743>745-061600- /O.EXP.KLOT.UP.W.0001.000000T0000Z-210206T1500Z/ /O.EXP.KLOT.SC.Y.0013.000000T0000Z-210206T1500Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 853 AM CST Sat Feb 6 2021 ...HEAVY FREEZING SPRAY WARNING WILL EXPIRE AT 9 AM CST THIS MORNING... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 9 AM CST THIS MORNING... Winds have eased this morning and thus heavy freezing spray should ease, though there could be additional freezing spray again later tonight into tomorrow. $$
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 4, 7:36 PM CST | Wind Advisory | LOT | Ford, Iroquois | 4 hr |
| Feb 5, 2:24 PM CST | Winter Weather Advisory | LOT | Cook, DeKalb, DuPage, Ford, Grundy, Iroquois and 8 more | 31 hr |
Nearby
Small Craft Advisories in Illinois, 2021Every small craft advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.