Alert archive / Missouri / Freeze Watches in 2021
Freeze Watch 2, NWS St. Louis, MO
NWS St. Louis, MO issued this freeze watch at Nov 2, 2021, 3:25 AM CDT for 7 counties in Missouri; Randolph County, Illinois. It took effect at Nov 4, 2021, 1:00 AM CDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Nov 2, 2021, 3:25 AM CDT (08:25 UTC)
- In effect from
- Nov 4, 2021, 1:00 AM CDT
- Expired
- Nov 3, 2021, 3:14 AM CDT
- In force
- Issued by
- NWS St. Louis, MO
Counties Randolph County, IL, Crawford County, MO, Iron County, MO, Madison County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 105 km from the middle of the area, began a volume at 08:27 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
Springfield, MO (KSGF), launched 00:00Z, 8.4 hours before the alert went out and 300 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
- 698 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 169 m²/s²
- 0-3 km storm-relative helicity
- 525 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
371 WWUS73 KLSX 020825 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 325 AM CDT Tue Nov 2 2021 ILZ095>097-MOZ018-019-026-027-021400- /O.CON.KLSX.FZ.W.0006.000000T0000Z-211102T1400Z/ Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Including the cities of Hannibal, Mount Sterling, Quincy, and Pittsfield 325 AM CDT Tue Nov 2 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 30. * WHERE...In Missouri, Knox MO, Lewis MO, Marion MO and Shelby MO Counties. In Illinois, Adams IL, Brown IL and Pike IL Counties. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ ILZ079-MOZ072>075-084-085-099-022330- /O.NEW.KLSX.FZ.A.0002.211104T0600Z-211104T1400Z/ Randolph IL-Crawford MO-Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Farmington, Chester, and Sparta 325 AM CDT Tue Nov 2 2021 ...FREEZE WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING... * WHAT...Sub-freezing temperatures as low as 28 possible. * WHERE...In Missouri, Crawford MO, Washington MO, Iron MO, Madison MO, Reynolds MO, Saint Francois MO and Sainte Genevieve MO Counties. In Illinois, Randolph IL County. * WHEN...From late Wednesday night through Thursday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Pfahler
3 follow-up statements
487 WWUS73 KLSX 021355 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 855 AM CDT Tue Nov 2 2021 ILZ095>097-MOZ018-019-026-027-021500- /O.EXP.KLSX.FZ.W.0006.000000T0000Z-211102T1400Z/ Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Including the cities of Hannibal, Mount Sterling, Quincy, and Pittsfield 855 AM CDT Tue Nov 2 2021 ...FREEZE WARNING WILL EXPIRE AT 9 AM CDT THIS MORNING... Temperatures will warm above freezing as the morning progresses. $$ ILZ079-MOZ072>075-084-085-099-030000- /O.CON.KLSX.FZ.A.0002.211104T0600Z-211104T1400Z/ Randolph IL-Crawford MO-Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Farmington, Chester, and Sparta 855 AM CDT Tue Nov 2 2021 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING... * WHAT...Sub-freezing temperatures as low as 27 possible. * WHERE...In Missouri, Crawford MO, Washington MO, Iron MO, Madison MO, Reynolds MO, Saint Francois MO and Sainte Genevieve MO Counties. In Illinois, Randolph IL County. * WHEN...From late Wednesday night through Thursday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Glass
412 WWUS73 KLSX 021904 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 204 PM CDT Tue Nov 2 2021 ILZ079-031200- /O.NEW.KLSX.FZ.W.0007.211103T0500Z-211103T1400Z/ /O.CON.KLSX.FZ.A.0002.211104T0600Z-211104T1400Z/ Randolph IL- Including the cities of Chester and Sparta 204 PM CDT Tue Nov 2 2021 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CDT WEDNESDAY... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 31 expected. For the Freeze Watch, sub-freezing temperatures as low as 29 possible. * WHERE...Randolph IL County. * WHEN...For the Freeze Warning, from Midnight tonight to 9 AM CDT Wednesday. For the Freeze Watch, from late Wednesday night through Thursday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ ILZ058>060-064-065-069-070-074-098>102-MOZ041-047>052-059>065-031200- /O.NEW.KLSX.FZ.W.0007.211103T0500Z-211103T1400Z/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Calhoun IL-Jersey IL-Madison IL-Saint Clair-Monroe IL-Boone MO-Moniteau MO-Cole MO-Osage MO-Callaway MO- Montgomery MO-Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO- Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO- Including the cities of Columbia, Saint Charles, Jefferson City, Alton, Litchfield, Cahokia, Washington, Saint Louis, Centralia, Belleville, Salem, Edwardsville, Union, Sullivan, Vandalia, and Fulton 204 PM CDT Tue Nov 2 2021 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Portions of south central and southwest Illinois, and portions of central and east central Missouri. * WHEN...From Midnight tonight to 9 AM CDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MOZ072>075-084-085-099-031200- /O.CON.KLSX.FZ.A.0002.211104T0600Z-211104T1400Z/ Crawford MO-Washington MO-Saint Francois MO-Sainte Genevieve MO- Iron MO-Madison MO-Reynolds MO- Including the cities of Farmington 204 PM CDT Tue Nov 2 2021 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING... * WHAT...Sub-freezing temperatures as low as 27 possible. * WHERE...Crawford MO, Washington MO, Iron MO, Madison MO, Reynolds MO, Saint Francois MO and Sainte Genevieve MO Counties. * WHEN...From late Wednesday night through Thursday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Glass
285 WWUS73 KLSX 030814 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 314 AM CDT Wed Nov 3 2021 ILZ079-032315- /O.UPG.KLSX.FZ.A.0002.211104T0600Z-211104T1400Z/ /O.NEW.KLSX.FZ.W.0008.211104T0600Z-211104T1400Z/ /O.CON.KLSX.FZ.W.0007.000000T0000Z-211103T1400Z/ Randolph IL- Including the cities of Chester and Sparta 314 AM CDT Wed Nov 3 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM CDT THURSDAY... * WHAT...For the first Freeze Warning, sub-freezing temperatures as low as 29 expected. For the second Freeze Warning, sub-freezing temperatures as low as 31. * WHERE...Randolph IL County. * WHEN...For the first Freeze Warning, from 1 AM to 9 AM CDT Thursday. For the second Freeze Warning, until 9 AM CDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MOZ072>075-084-085-099-032315- /O.UPG.KLSX.FZ.A.0002.211104T0600Z-211104T1400Z/ /O.NEW.KLSX.FZ.W.0008.211104T0600Z-211104T1400Z/ Crawford MO-Washington MO-Saint Francois MO-Sainte Genevieve MO- Iron MO-Madison MO-Reynolds MO- Including the cities of Farmington 314 AM CDT Wed Nov 3 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM CDT THURSDAY... * WHAT...Sub-freezing temperatures as low as 26 expected. * WHERE...Crawford MO, Washington MO, Iron MO, Madison MO, Reynolds MO, Saint Francois MO and Sainte Genevieve MO Counties. * WHEN...From 1 AM to 9 AM CDT Thursday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ ILZ058>060-064-065-069-070-074-098>102-MOZ041-047>052-059>065-031400- /O.CON.KLSX.FZ.W.0007.000000T0000Z-211103T1400Z/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Calhoun IL-Jersey IL-Madison IL-Saint Clair-Monroe IL-Boone MO-Moniteau MO-Cole MO-Osage MO-Callaway MO- Montgomery MO-Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO- Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO- Including the cities of Columbia, Saint Charles, Jefferson City, Alton, Litchfield, Cahokia, Washington, Saint Louis, Centralia, Belleville, Salem, Edwardsville, Union, Sullivan, Vandalia, and Fulton 314 AM CDT Wed Nov 3 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 30. * WHERE...Portions of south central and southwest Illinois, and portions of central and east central Missouri. * WHEN...Until 9 AM CDT this morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Pfahler
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 2, 2:04 PM CDT | Freeze Warning | LSX | Boone, Callaway, Cole, Franklin, Gasconade, Jefferson and 8 more | 19 hr |
| Nov 2, 9:37 AM CDT | River Flood Warning | LSX | Pike, Scott | 5 days |
Nearby
Freeze Watches in Missouri, 2021Freeze Watches in Illinois, 2021Every freeze watch 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.