Alert archive / Illinois / Wind Advisories in 2020
Wind Advisory 2, NWS St. Louis, MO
NWS St. Louis, MO issued this wind advisory at Apr 9, 2020, 3:53 AM CDT for 8 counties in Illinois; 4 counties in Missouri. It took effect at Apr 9, 2020, 10:00 AM CDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Apr 9, 2020, 3:53 AM CDT (08:53 UTC)
- In effect from
- Apr 9, 2020, 10:00 AM CDT
- Expired
- Apr 9, 2020, 7:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS St. Louis, MO
Counties Adams County, IL, Brown County, IL, Calhoun County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Montgomery County, IL, Pike County, IL, Knox County, MO, Lewis County, MO, Marion County, MO, Shelby County, MO
The radar
The St Louis radar (KLSX), 105 km from the middle of the area, began a volume at 08:53 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, 8.9 hours before the alert went out and 208 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
- 1980 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- -120 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
684 WWUS73 KLSX 090853 NPWLSX URGENT - WEATHER MESSAGE National Weather Service Saint Louis MO 353 AM CDT Thu Apr 9 2020 MOZ034-035-041-042-047>051-059-072-092200- /O.NEW.KLSX.FZ.W.0001.200410T0700Z-200410T1400Z/ Audrain MO-Boone MO-Callaway MO-Cole MO-Crawford MO-Gasconade MO- Moniteau MO-Monroe MO-Montgomery MO-Osage MO-Ralls MO- Including the cities of Columbia, Fulton, Jefferson City, and Mexico 353 AM CDT Thu Apr 9 2020 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM CDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 29 to 30 degrees expected. * WHERE...Portions of central and northeast Missouri. * WHEN...From 2 AM to 9 AM CDT Friday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ ILZ058>060-095>099-MOZ018-019-026-027-092200- /O.NEW.KLSX.WI.Y.0002.200409T1500Z-200410T0000Z/ Adams IL-Brown IL-Calhoun IL-Greene IL-Jersey IL-Knox MO-Lewis MO- Macoupin IL-Marion MO-Montgomery IL-Pike IL-Shelby MO- Including the cities of Hannibal, Litchfield, Mount Sterling, Pittsfield, and Quincy 353 AM CDT Thu Apr 9 2020 ...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of northeast Missouri and west central Illinois. * WHEN...From 10 AM this morning to 7 PM CDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ GKS
2 follow-up statements
761 WWUS73 KLSX 091940 NPWLSX URGENT - WEATHER MESSAGE National Weather Service Saint Louis MO 240 PM CDT Thu Apr 9 2020 ILZ058>060-097>099-100745- /O.EXA.KLSX.FZ.W.0001.200410T0700Z-200410T1400Z/ /O.CON.KLSX.WI.Y.0002.000000T0000Z-200410T0000Z/ Calhoun IL-Greene IL-Jersey IL-Macoupin IL-Montgomery IL-Pike IL- Including the cities of Litchfield and Pittsfield 240 PM CDT Thu Apr 9 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM CDT FRIDAY... * WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph expected. Sub-freezing temperatures as low as 29 to 32 degrees expected. * WHERE...Greene IL, Macoupin IL, Montgomery IL, Pike IL, Calhoun IL and Jersey IL Counties. * WHEN...Strong winds until 7 PM CDT this evening. Sub-freezing temperatures from 2 AM to 9 AM CDT Friday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ MOZ036-052-060-062-073-100745- /O.EXA.KLSX.FZ.W.0001.200410T0700Z-200410T1400Z/ Franklin MO-Lincoln MO-Pike MO-Warren MO-Washington MO- Including the cities of Bowling Green, Sullivan, Union, and Washington 240 PM CDT Thu Apr 9 2020 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM CDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 29 to 32 degrees expected. * WHERE...Pike MO, Lincoln MO, Warren MO, Franklin MO and Washington MO Counties. * WHEN...From 2 AM to 9 AM CDT Friday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ MOZ034-035-041-042-047>051-059-072-100745- /O.CON.KLSX.FZ.W.0001.200410T0700Z-200410T1400Z/ Audrain MO-Boone MO-Callaway MO-Cole MO-Crawford MO-Gasconade MO- Moniteau MO-Monroe MO-Montgomery MO-Osage MO-Ralls MO- Including the cities of Columbia, Fulton, Jefferson City, and Mexico 240 PM CDT Thu Apr 9 2020 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM CDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 29 to 32 degrees expected. * WHERE...Portions of central and northeast Missouri. * WHEN...From 2 AM to 9 AM CDT Friday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ ILZ095-096-MOZ018-019-026-027-100000- /O.CON.KLSX.WI.Y.0002.000000T0000Z-200410T0000Z/ Adams IL-Brown IL-Knox MO-Lewis MO-Marion MO-Shelby MO- Including the cities of Hannibal, Mount Sterling, and Quincy 240 PM CDT Thu Apr 9 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of northeast Missouri and west central Illinois. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ BSH
358 WWUS73 KLSX 100004 NPWLSX URGENT - WEATHER MESSAGE National Weather Service Saint Louis MO 704 PM CDT Thu Apr 9 2020 ILZ058>060-097>099-101215- /O.EXP.KLSX.WI.Y.0002.000000T0000Z-200410T0000Z/ /O.CON.KLSX.FZ.W.0001.200410T0700Z-200410T1400Z/ Calhoun IL-Greene IL-Jersey IL-Macoupin IL-Montgomery IL-Pike IL- Including the cities of Litchfield and Pittsfield 704 PM CDT Thu Apr 9 2020 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM CDT FRIDAY... ...WIND ADVISORY HAS EXPIRED... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Montgomery IL, Calhoun IL, Jersey IL, Pike IL, Greene IL and Macoupin IL Counties. * WHEN...From 2 AM to 9 AM CDT Friday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ ILZ095-096-MOZ018-019-026-027-100115- /O.EXP.KLSX.WI.Y.0002.000000T0000Z-200410T0000Z/ Adams IL-Brown IL-Knox MO-Lewis MO-Marion MO-Shelby MO- Including the cities of Hannibal, Mount Sterling, and Quincy 704 PM CDT Thu Apr 9 2020 ...WIND ADVISORY HAS EXPIRED... Winds will continue to slowly decrease in speed through the evening hours. $$ MOZ034>036-041-042-047>052-059-060-062-072-073-101215- /O.CON.KLSX.FZ.W.0001.200410T0700Z-200410T1400Z/ Audrain MO-Boone MO-Callaway MO-Cole MO-Crawford MO-Franklin MO- Gasconade MO-Lincoln MO-Moniteau MO-Monroe MO-Montgomery MO- Osage MO-Pike MO-Ralls MO-Warren MO-Washington MO- Including the cities of Bowling Green, Columbia, Fulton, Jefferson City, Mexico, Sullivan, Union, and Washington 704 PM CDT Thu Apr 9 2020 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM CDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Portions of central, east central and northeast Missouri. * WHEN...From 2 AM to 9 AM CDT Friday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ Britt
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 7:00 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette, Montgomery | 45 min |
| Apr 8, 7:32 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Marion | 43 min |
| Apr 8, 7:55 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Marion, Washington | 29 min |
| Apr 9, 3:53 AM CDT | Freeze Warning | LSX | Calhoun, Greene, Jersey, Macoupin, Montgomery, Pike | 29 hr |
| Apr 8, 7:13 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Charles, Saint Louis | 14 min |
Nearby
Wind Advisories in Illinois, 2020Wind Advisories in Missouri, 2020Every wind advisory in 2020
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.