Alert archive / Illinois / Wind Advisories in 2026
Wind Advisory 3, NWS St. Louis, MO
NWS St. Louis, MO issued this wind advisory at Apr 2, 2026, 3:46 AM CDT for 14 counties in Missouri; 17 counties in Illinois. It took effect at Apr 2, 2026, 12:00 PM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Apr 2, 2026, 3:46 AM CDT (08:46 UTC)
- In effect from
- Apr 2, 2026, 12:00 PM CDT
- Expired
- Apr 2, 2026, 7:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS St. Louis, MO
All 31 counties
Adams County, IL, Bond County, IL, Brown County, IL, Calhoun County, IL, Clinton County, IL, Fayette County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Pike County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Audrain County, MO, City of Saint Louis, MO, Jefferson County, MO, Knox County, MO, Lewis County, MO, Lincoln County, MO, Marion County, MO, Monroe County, MO, Pike County, MO, Ralls County, MO, Saint Charles County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Shelby County, MO
The radar
The St Louis radar (KLSX), 44 km from the middle of the area, began a volume at 08:46 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
Lincoln, IL (KILX), launched 00:00Z, 8.8 hours before the alert went out and 205 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
- 536 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 254 m²/s²
- 0-3 km storm-relative helicity
- 276 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
817 WWUS73 KLSX 020846 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 346 AM CDT Thu Apr 2 2026 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-042-052-061-063>065-075-030000- /O.NEW.KLSX.WI.Y.0003.260402T1700Z-260403T0000Z/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Audrain MO-Lincoln MO-Saint Charles MO-Saint Louis MO-Saint Louis City MO- Jefferson MO-Sainte Genevieve MO- Including the cities of Centralia, Belleville, Edwardsville, Saint Charles, Litchfield, Cahokia, Pittsfield, Bowling Green, Quincy, Vandalia, Chester, Hannibal, Mexico, Saint Louis, Salem, Mount Sterling, Sparta, and Alton 346 AM CDT Thu Apr 2 2026 ...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING... * WHAT...South winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...From noon today to 7 PM CDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles on east to west roadways. Use extra caution. && $$ Jaja
2 follow-up statements
632 WWUS73 KLSX 022021 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 321 PM CDT Thu Apr 2 2026 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-042-052-061-063>065-075-030000- /O.CON.KLSX.WI.Y.0003.000000T0000Z-260403T0000Z/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Audrain MO-Lincoln MO-Saint Charles MO-Saint Louis MO-Saint Louis City MO- Jefferson MO-Sainte Genevieve MO- Including the cities of Belleville, Chester, Saint Charles, Mount Sterling, Edwardsville, Alton, Quincy, Vandalia, Mexico, Saint Louis, Litchfield, Pittsfield, Centralia, Bowling Green, Salem, Cahokia, Hannibal, and Sparta 321 PM CDT Thu Apr 2 2026 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...South winds 15 to 25 mph with gusts up to 45 mph. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Peine
446 WWUS73 KLSX 022351 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 651 PM CDT Thu Apr 2 2026 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-042-052-061-063>065-075-030100- /O.EXP.KLSX.WI.Y.0003.000000T0000Z-260403T0000Z/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Audrain MO-Lincoln MO-Saint Charles MO-Saint Louis MO-Saint Louis City MO- Jefferson MO-Sainte Genevieve MO- Including the cities of Belleville, Chester, Saint Charles, Mount Sterling, Edwardsville, Alton, Quincy, Vandalia, Mexico, Saint Louis, Litchfield, Pittsfield, Centralia, Bowling Green, Salem, Cahokia, Hannibal, and Sparta 651 PM CDT Thu Apr 2 2026 ...WIND ADVISORY WILL EXPIRE AT 7 PM CDT THIS EVENING... The threat has ended. $$ Peine
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 7:25 PM CDT | Flood Watch | LSX | Audrain, Boone, Callaway, Cole, Gasconade, Knox and 8 more | 15 hr |
| Apr 2, 9:35 AM CDT | River Flood Warning | LSX | Monroe | 62 hr |
| Apr 2, 2:26 PM CDT | River Flood Warning | LSX | Marion | 15 hr |
| Apr 2, 4:04 PM CDT | River Flood Warning | LSX | Marion | 4 hr |
Nearby
Wind Advisories in Illinois, 2026Wind Advisories in Missouri, 2026Every wind advisory in 2026
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.