Alert archive / Missouri / Wind Advisories in 2021
Wind Advisory 1, NWS St. Louis, MO
NWS St. Louis, MO issued this wind advisory at Mar 10, 2021, 3:11 AM CST for 22 counties in Missouri; 16 counties in Illinois. It took effect at Mar 10, 2021, 11:00 AM CST. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Mar 10, 2021, 3:11 AM CST (09:11 UTC)
- In effect from
- Mar 10, 2021, 11:00 AM CST
- Expired
- Mar 10, 2021, 6:00 PM CST
- In force
- 7 hr
- Issued by
- NWS St. Louis, MO
All 38 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, Saint Clair County, IL, Washington County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, City of Saint Louis, MO, Cole County, MO, Franklin County, MO, Gasconade County, MO, Jefferson County, MO, Knox County, MO, Lewis County, MO, Lincoln County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Ralls County, MO, Saint Charles County, MO, Saint Louis County, MO, Shelby County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 41 km from the middle of the area, began a volume at 09:10 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, 9.2 hours before the alert went out and 230 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
- 1769 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 319 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
237 WWUS73 KLSX 100911 NPWLSX URGENT - WEATHER MESSAGE National Weather Service Saint Louis MO 311 AM CST Wed Mar 10 2021 ILZ058>060-065-095>097-MOZ018-019-026-027-034>036-041-042-102115- /O.NEW.KLSX.WI.Y.0001.210310T1700Z-210311T0000Z/ Adams IL-Audrain MO-Boone MO-Brown IL-Fayette IL-Greene IL- Knox MO-Lewis MO-Macoupin IL-Marion MO-Monroe MO-Montgomery IL- Pike IL-Pike MO-Ralls MO-Shelby MO- Including the cities of Bowling Green, Columbia, Hannibal, Litchfield, Mexico, Mount Sterling, Pittsfield, Quincy, and Vandalia 311 AM CST Wed Mar 10 2021 ...WIND ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CST THIS EVENING... * WHAT...South winds 20 to 25 mph with gusts up to 45 mph expected. * WHERE...Portions of central and northeast Missouri, as well as west central and southwestern Illinois. * WHEN...From 11 AM this morning to 6 PM CST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Byrd
2 follow-up statements
078 WWUS73 KLSX 101856 NPWLSX URGENT - WEATHER MESSAGE National Weather Service Saint Louis MO 1256 PM CST Wed Mar 10 2021 ILZ064-069-070-074-098>102-MOZ047>052-059>065-110000- /O.EXA.KLSX.WI.Y.0001.000000T0000Z-210311T0000Z/ Bond IL-Calhoun IL-Callaway MO-Clinton IL-Cole MO-Franklin MO- Gasconade MO-Jefferson MO-Jersey IL-Lincoln MO-Madison IL- Marion IL-Moniteau MO-Monroe IL-Montgomery MO-Osage MO- Saint Charles MO-Saint Clair-Saint Louis City MO-Saint Louis MO- Warren MO-Washington IL- Including the cities of Alton, Belleville, Cahokia, Centralia, Edwardsville, Fulton, Jefferson City, Saint Charles, Saint Louis, Salem, Sullivan, Union, and Washington 1256 PM CST Wed Mar 10 2021 ...WIND ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING... * WHAT...South winds 20 to 30 mph with gusts up to 45 mph. * WHERE...Portions of central and east central Missouri and south central and southwest Illinois. * WHEN...Until 6 PM CST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ ILZ058>060-065-095>097-MOZ018-019-026-027-034>036-041-042-110000- /O.CON.KLSX.WI.Y.0001.000000T0000Z-210311T0000Z/ Adams IL-Audrain MO-Boone MO-Brown IL-Fayette IL-Greene IL- Knox MO-Lewis MO-Macoupin IL-Marion MO-Monroe MO-Montgomery IL- Pike IL-Pike MO-Ralls MO-Shelby MO- Including the cities of Bowling Green, Columbia, Hannibal, Litchfield, Mexico, Mount Sterling, Pittsfield, Quincy, and Vandalia 1256 PM CST Wed Mar 10 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... * WHAT...South winds 25 to 30 mph with gusts up to 45 mph. * WHERE...Portions of central and northeast Missouri and south central, southwest and west central Illinois. * WHEN...Until 6 PM CST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ TES
334 WWUS73 KLSX 110005 NPWLSX URGENT - WEATHER MESSAGE National Weather Service Saint Louis MO 605 PM CST Wed Mar 10 2021 ILZ058>060-064-065-069-070-074-095>102-MOZ018-019-026-027-034>036- 041-042-047>052-059>065-110115- /O.EXP.KLSX.WI.Y.0001.000000T0000Z-210311T0000Z/ Adams IL-Audrain MO-Bond IL-Boone MO-Brown IL-Calhoun IL- Callaway MO-Clinton IL-Cole MO-Fayette IL-Franklin MO- Gasconade MO-Greene IL-Jefferson MO-Jersey IL-Knox MO-Lewis MO- Lincoln MO-Macoupin IL-Madison IL-Marion IL-Marion MO-Moniteau MO- Monroe IL-Monroe MO-Montgomery IL-Montgomery MO-Osage MO-Pike IL- Pike MO-Ralls MO-Saint Charles MO-Saint Clair-Saint Louis City MO- Saint Louis MO-Shelby MO-Warren MO-Washington IL- Including the cities of Alton, Belleville, Bowling Green, Cahokia, Centralia, Columbia, Edwardsville, Fulton, Hannibal, Jefferson City, Litchfield, Mexico, Mount Sterling, Pittsfield, Quincy, Saint Charles, Saint Louis, Salem, Sullivan, Union, Vandalia, and Washington 605 PM CST Wed Mar 10 2021 ...WIND ADVISORY HAS EXPIRED... The wind advisory has been allowed to expire as the strong and gusty winds will gradually weaken this evening. $$ GKS
Nearby
Wind Advisories in Missouri, 2021Wind Advisories in Illinois, 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.