Alert archive / Illinois / Wind Advisories in 2021
Wind Advisory 6, NWS Chicago, IL
NWS Chicago, IL issued this wind advisory at Apr 30, 2021, 2:50 PM CDT for 15 counties in Illinois; Lake County, Porter County, Indiana. It took effect at May 1, 2021, 12:00 PM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Apr 30, 2021, 2:50 PM CDT (19:50 UTC)
- In effect from
- May 1, 2021, 12:00 PM CDT
- Expired
- May 1, 2021, 7:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS Chicago, IL
Counties Boone County, IL, Cook County, IL, DeKalb County, IL, DuPage County, IL, Grundy County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, McHenry County, IL, Ogle County, IL, Will County, IL, Winnebago County, IL, Lake County, IN, Porter County, IN
The radar
The Chicago radar (KLOT), 30 km from the middle of the area, began a volume at 19:54 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 7.8 hours before the alert went out and 180 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2174 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
436 WWUS73 KLOT 301950 NPWLOT URGENT - WEATHER MESSAGE National Weather Service Chicago IL 250 PM CDT Fri Apr 30 2021 ILZ003>006-008-010>013-020-103>106-010400- /O.NEW.KLOT.WI.Y.0006.210501T1700Z-210502T0000Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- Kendall-Northern Cook-Central Cook-Southern Cook-Northern Will- Including the cities of Rockford, Belvidere, Crystal Lake, Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb, Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego, Yorkville, Plano, Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield, and Mokena 250 PM CDT Fri Apr 30 2021 ...WIND ADVISORY IN EFFECT FROM NOON TO 7 PM CDT SATURDAY... * WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of north central and northeast Illinois. * WHEN...From noon to 7 PM CDT Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...In addition to the strong and gusty winds, warm conditions and low afternoon relative humidity values will result in an elevated fire danger. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Carlaw
5 follow-up statements
883 WWUS73 KLOT 010204 NPWLOT URGENT - WEATHER MESSAGE National Weather Service Chicago IL 904 PM CDT Fri Apr 30 2021 ILZ003>006-008-010>013-020-103>106-011015- /O.CON.KLOT.WI.Y.0006.210501T1700Z-210502T0000Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- Kendall-Northern Cook-Central Cook-Southern Cook-Northern Will- Including the cities of Rockford, Belvidere, Crystal Lake, Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb, Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego, Yorkville, Plano, Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield, and Mokena 904 PM CDT Fri Apr 30 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM NOON TO 7 PM CDT SATURDAY... * WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of north central and northeast Illinois. * WHEN...From noon to 7 PM CDT Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...In addition to the strong and gusty winds, warm conditions and low afternoon relative humidity values will result in an elevated fire danger. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
291 WWUS73 KLOT 010849 NPWLOT URGENT - WEATHER MESSAGE National Weather Service Chicago IL 349 AM CDT Sat May 1 2021 ILZ003>006-008-010>013-020-103>106-011700- /O.CON.KLOT.WI.Y.0006.210501T1700Z-210502T0000Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- Kendall-Northern Cook-Central Cook-Southern Cook-Northern Will- Including the cities of Rockford, Belvidere, Crystal Lake, Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb, Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego, Yorkville, Plano, Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield, and Mokena 349 AM CDT Sat May 1 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING... * WHAT...Southwest winds 20 to 30 mph with gusts 45 to 50 mph expected. * WHERE...Portions of north central and northeast Illinois. * WHEN...From noon today to 7 PM CDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...In addition to the strong and gusty winds, warm conditions and low afternoon relative humidity values will result in an elevated fire danger. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Petr
852 WWUS73 KLOT 011544 AAA NPWLOT URGENT - WEATHER MESSAGE...UPDATED National Weather Service Chicago IL 1044 AM CDT Sat May 1 2021 ILZ019-021-023-107-108-INZ001-002-020000- /O.EXB.KLOT.WI.Y.0006.210501T1900Z-210502T0000Z/ La Salle-Grundy-Kankakee-Southern Will-Eastern Will-Lake IN- Porter- Including the cities of Ottawa, Streator, La Salle, Mendota, Marseilles, Morris, Coal City, Minooka, Kankakee, Bourbonnais, Bradley, Channahon, Manhattan, Wilmington, Crete, Peotone, Beecher, Gary, Hammond, Merrillville, Portage, Valparaiso, and Chesterton 1044 AM CDT Sat May 1 2021 ...WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 7 PM CDT THIS EVENING... * WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...In Indiana, Lake IN and Porter Counties. In Illinois, La Salle, Grundy, Kankakee, Southern Will and Eastern Will Counties. * WHEN...From 2 PM this afternoon to 7 PM CDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...In addition to the strong and gusty winds, warm conditions and low afternoon relative humidity values will result in an elevated fire danger. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ ILZ003>006-008-010>013-020-103>106-020000- /O.CON.KLOT.WI.Y.0006.210501T1700Z-210502T0000Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- Kendall-Northern Cook-Central Cook-Southern Cook-Northern Will- Including the cities of Rockford, Belvidere, Crystal Lake, Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb, Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego, Yorkville, Plano, Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield, and Mokena 1044 AM CDT Sat May 1 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Portions of north central and northeast Illinois. * WHEN...From noon today to 7 PM CDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...In addition to the strong and gusty winds, warm conditions and low afternoon relative humidity values will result in an elevated fire danger. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Carlaw
670 WWUS73 KLOT 011929 NPWLOT URGENT - WEATHER MESSAGE National Weather Service Chicago IL 229 PM CDT Sat May 1 2021 ILZ003>006-008-010>013-020-103>106-020000- /O.CON.KLOT.WI.Y.0006.000000T0000Z-210502T0000Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- Kendall-Northern Cook-Central Cook-Southern Cook-Northern Will- Including the cities of Rockford, Belvidere, Crystal Lake, Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb, Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego, Yorkville, Plano, Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield, and Mokena 229 PM CDT Sat May 1 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Southwest winds 25 to 30 mph with gusts up to 50 mph. * WHERE...Portions of north central and northeast Illinois. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result, and travel could be difficult for high profile vehicles on north-south oriented roads. * ADDITIONAL DETAILS...In addition to the strong and gusty winds, warm conditions and low afternoon relative humidity values will continue to result in an elevated to near critical fire danger through sunset. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ ILZ019-021-023-107-108-INZ001-002-020000- /O.CON.KLOT.WI.Y.0006.000000T0000Z-210502T0000Z/ La Salle-Grundy-Kankakee-Southern Will-Eastern Will-Lake IN- Porter- Including the cities of Ottawa, Streator, La Salle, Mendota, Marseilles, Morris, Coal City, Minooka, Kankakee, Bourbonnais, Bradley, Channahon, Manhattan, Wilmington, Crete, Peotone, Beecher, Gary, Hammond, Merrillville, Portage, Valparaiso, and Chesterton 229 PM CDT Sat May 1 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph. * WHERE...In Indiana, Lake IN and Porter Counties. In Illinois, Eastern Will, Grundy, Kankakee, Southern Will and La Salle Counties. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result, and travel could be difficult for high profile vehicles on north-south oriented roads. * ADDITIONAL DETAILS...In addition to the strong and gusty winds, warm conditions and low afternoon relative humidity values will result in an elevated fire danger through sunset. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Carlaw
016 WWUS73 KLOT 012349 NPWLOT URGENT - WEATHER MESSAGE National Weather Service Chicago IL 649 PM CDT Sat May 1 2021 ILZ003>006-008-010>013-020-103>106-020100- /O.EXP.KLOT.WI.Y.0006.000000T0000Z-210502T0000Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- Kendall-Northern Cook-Central Cook-Southern Cook-Northern Will- Including the cities of Rockford, Belvidere, Crystal Lake, Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb, Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego, Yorkville, Plano, Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield, and Mokena 649 PM CDT Sat May 1 2021 ...WIND ADVISORY WILL EXPIRE AT 7 PM CDT THIS EVENING... Winds will continue to gradually ease this evening. A few gusts to 40 mph may still be seen, but the primary impacting gusts have ended. $$ ILZ019-021-023-107-108-INZ001-002-020100- /O.EXP.KLOT.WI.Y.0006.000000T0000Z-210502T0000Z/ La Salle-Grundy-Kankakee-Southern Will-Eastern Will-Lake IN- Porter- Including the cities of Ottawa, Streator, La Salle, Mendota, Marseilles, Morris, Coal City, Minooka, Kankakee, Bourbonnais, Bradley, Channahon, Manhattan, Wilmington, Crete, Peotone, Beecher, Gary, Hammond, Merrillville, Portage, Valparaiso, and Chesterton 649 PM CDT Sat May 1 2021 ...WIND ADVISORY WILL EXPIRE AT 7 PM CDT THIS EVENING... Winds will continue to gradually ease this evening. A few gusts to 40 mph may still be seen, but the primary impacting gusts have ended. $$
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 7:01 PM CDT | Special Weather Statement | LOT | Ford, Grundy, Kankakee, Livingston, Will | 59 min |
| Apr 29, 7:15 PM CDT | Special Marine Warning | LOT | 90 min | |
| Apr 30, 3:06 PM CDT | Gale Warning | LOT | 31 hr | |
| Apr 29, 7:15 PM CDT | Special Weather Statement | LOT | Lake | 45 min |
| Apr 29, 8:00 PM CDT | Special Weather Statement | LOT | Porter | 30 min |
| Apr 29, 8:18 PM CDT | Special Weather Statement | LOT | Jasper, Newton | 42 min |
Nearby
Wind Advisories in Illinois, 2021Wind Advisories in Indiana, 2021Every wind 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.