IEM VTEC Product Browser
This application allows easy navigation of National Weather Service issued products with Valid Time Event Coding (VTEC).
13 Nov 2024 Update: The tool was updated to use non-hash link style URLs. A shim is in place to translate the old URLs to the new ones, so nothing should be broken (famous last words). This was done to allow the HTML5 History API to provide a better user experience.
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2025 [KLOT] CHICAGO Storm (SR) Warning (W) Number 1
Listing of Counties/Parishes/Zones Included in Product
RADAR Composite at Issuance Time
Storm Based Warning History
304 WHUS73 KLOT 142100 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 400 PM CDT Fri Mar 14 2025 LMZ740>745-150500- /O.EXP.KLOT.SC.Y.0031.000000T0000Z-250314T2100Z/ /O.EXT.KLOT.GL.W.0007.000000T0000Z-250315T1200Z/ /O.UPG.KLOT.SR.A.0001.250315T1400Z-250315T2000Z/ /O.NEW.KLOT.SR.W.0001.250315T1200Z-250315T2000Z/ 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- 400 PM CDT Fri Mar 14 2025 ...GALE WARNING NOW IN EFFECT UNTIL 7 AM CDT SATURDAY... ...STORM WARNING IN EFFECT FROM 7 AM TO 3 PM CDT SATURDAY... * WHAT...For the Gale Warning, south gales to 45 kt and significant waves to 7 ft occasionally to 9 ft expected, with a few storm force gusts to 50 kt late this evening and overnight. For the Storm Warning, south to southwest storms to 50 kt and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...For the Gale Warning, until 7 AM CDT Saturday. For the Storm Warning, from 7 AM to 3 PM CDT Saturday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$
846 WHUS73 KLOT 150231 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 931 PM CDT Fri Mar 14 2025 LMZ740>745-151045- /O.CON.KLOT.GL.W.0007.000000T0000Z-250315T1200Z/ /O.CON.KLOT.SR.W.0001.250315T1200Z-250315T2000Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 931 PM CDT Fri Mar 14 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT SATURDAY... ...STORM WARNING REMAINS IN EFFECT FROM 7 AM TO 3 PM CDT SATURDAY... * WHAT...For the Gale Warning, south gales to 45 kt and significant waves to 7 ft occasionally to 9 ft, with a few storm force gusts to 50 kt late this evening and overnight. For the Storm Warning, south to southwest storms to 50 kt and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...For the Gale Warning, until 7 AM CDT Saturday. For the Storm Warning, from 7 AM to 3 PM CDT Saturday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$
192 WHUS73 KLOT 150857 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 357 AM CDT Sat Mar 15 2025 LMZ740>745-151700- /O.CON.KLOT.GL.W.0007.000000T0000Z-250315T1200Z/ /O.CON.KLOT.SR.W.0001.250315T1200Z-250315T2000Z/ 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- 357 AM CDT Sat Mar 15 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING... ...STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 3 PM CDT THIS AFTERNOON... * WHAT...South to southwest storms to 50 kt and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...For the Gale Warning, until 7 AM CDT this morning. For the Storm Warning, from 7 AM this morning to 3 PM CDT this afternoon. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$
240 WHUS73 KLOT 151345 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 845 AM CDT Sat Mar 15 2025 LMZ740>745-152145- /O.CAN.KLOT.SR.W.0001.000000T0000Z-250315T2000Z/ /O.NEW.KLOT.GL.W.0008.250315T1345Z-250316T0000Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 845 AM CDT Sat Mar 15 2025 ...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...STORM WARNING IS CANCELLED... * WHAT...Southwest gales to 45 kt and significant waves to 8 ft occasionally to 10 ft. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$
Permalink to 202503142100-KLOT-WHUS73-MWWLOT
304 WHUS73 KLOT 142100 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 400 PM CDT Fri Mar 14 2025 LMZ740>745-150500- /O.EXP.KLOT.SC.Y.0031.000000T0000Z-250314T2100Z/ /O.EXT.KLOT.GL.W.0007.000000T0000Z-250315T1200Z/ /O.UPG.KLOT.SR.A.0001.250315T1400Z-250315T2000Z/ /O.NEW.KLOT.SR.W.0001.250315T1200Z-250315T2000Z/ 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- 400 PM CDT Fri Mar 14 2025 ...GALE WARNING NOW IN EFFECT UNTIL 7 AM CDT SATURDAY... ...STORM WARNING IN EFFECT FROM 7 AM TO 3 PM CDT SATURDAY... * WHAT...For the Gale Warning, south gales to 45 kt and significant waves to 7 ft occasionally to 9 ft expected, with a few storm force gusts to 50 kt late this evening and overnight. For the Storm Warning, south to southwest storms to 50 kt and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...For the Gale Warning, until 7 AM CDT Saturday. For the Storm Warning, from 7 AM to 3 PM CDT Saturday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$
Permalink to 202503150231-KLOT-WHUS73-MWWLOT
846 WHUS73 KLOT 150231 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 931 PM CDT Fri Mar 14 2025 LMZ740>745-151045- /O.CON.KLOT.GL.W.0007.000000T0000Z-250315T1200Z/ /O.CON.KLOT.SR.W.0001.250315T1200Z-250315T2000Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 931 PM CDT Fri Mar 14 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT SATURDAY... ...STORM WARNING REMAINS IN EFFECT FROM 7 AM TO 3 PM CDT SATURDAY... * WHAT...For the Gale Warning, south gales to 45 kt and significant waves to 7 ft occasionally to 9 ft, with a few storm force gusts to 50 kt late this evening and overnight. For the Storm Warning, south to southwest storms to 50 kt and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...For the Gale Warning, until 7 AM CDT Saturday. For the Storm Warning, from 7 AM to 3 PM CDT Saturday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$
Permalink to 202503150857-KLOT-WHUS73-MWWLOT
192 WHUS73 KLOT 150857 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 357 AM CDT Sat Mar 15 2025 LMZ740>745-151700- /O.CON.KLOT.GL.W.0007.000000T0000Z-250315T1200Z/ /O.CON.KLOT.SR.W.0001.250315T1200Z-250315T2000Z/ 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- 357 AM CDT Sat Mar 15 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING... ...STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 3 PM CDT THIS AFTERNOON... * WHAT...South to southwest storms to 50 kt and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...For the Gale Warning, until 7 AM CDT this morning. For the Storm Warning, from 7 AM this morning to 3 PM CDT this afternoon. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$
Permalink to 202503151345-KLOT-WHUS73-MWWLOT
240 WHUS73 KLOT 151345 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 845 AM CDT Sat Mar 15 2025 LMZ740>745-152145- /O.CAN.KLOT.SR.W.0001.000000T0000Z-250315T2000Z/ /O.NEW.KLOT.GL.W.0008.250315T1345Z-250316T0000Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 845 AM CDT Sat Mar 15 2025 ...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...STORM WARNING IS CANCELLED... * WHAT...Southwest gales to 45 kt and significant waves to 8 ft occasionally to 10 ft. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$
All Storm Reports within Event Political Coverage
Storm Reports within Product Polygon
This table lists other events issued by the selected office for the selected year. Click on the row to select that event.