Alert archive / Missouri / Freeze Warnings in 2011
Freeze Warning 2, NWS St. Louis, MO
NWS St. Louis, MO issued this freeze warning at Mar 27, 2011, 4:27 AM CDT for 20 counties in Missouri; 6 counties in Illinois. It took effect at Mar 27, 2011, 11:00 PM CDT. It was in force for 5 hr. 6 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 27, 2011, 4:27 AM CDT (09:27 UTC)
- In effect from
- Mar 27, 2011, 11:00 PM CDT
- Expired
- Mar 28, 2011, 4:05 AM CDT
- In force
- 5 hr
- Issued by
- NWS St. Louis, MO
All 26 counties
Clinton County, IL, Madison County, IL, Monroe County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Boone County, MO, Callaway County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Madison County, MO, Moniteau County, MO, Montgomery County, MO, Osage County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Warren County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 42 km from the middle of the area, began a volume at 09:25 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 28, 1:42 AM CDT | SNOW 0 | Centerville, MO | VERY LIGHT SNOW...MELTING AS IT HITS THE GROUND. |
| Mar 28, 1:43 AM CDT | SNOW 0 | Ironton, MO | VERY LIGHT SNOW....MELTING AS IT HITS THE GROUND. |
| Mar 28, 1:45 AM CDT | SNOW 1 | Steelville, MO | LIGHT SNOW CONTINUES. GRASS IS COVERED...ROADS JUST WET |
| Mar 28, 1:47 AM CDT | SNOW 0 | Linn, MO | VERY LIGHT SNOW....MELTING AS IT HITS THE GROUND. |
| Mar 28, 1:49 AM CDT | SNOW 1 | Potosi, MO | GRASS COVERED...ROADS JUST WET. |
| Mar 28, 1:52 AM CDT | SNOW 0 | Farmington, MO | SNOW IS MELTING AS IT HITS THE GROUND |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 9.5 hours before the alert went out and 278 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
- 1831 m above ground
- 0-6 km bulk shear
- 92 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
257 WWUS73 KLSX 270927 NPWLSX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE ST LOUIS MO 427 AM CDT SUN MAR 27 2011 ILZ100>102-MOZ041-047>051-059>065-272200- /O.NEW.KLSX.FZ.W.0002.110328T0400Z-110328T1400Z/ /O.CON.KLSX.FZ.W.0001.000000T0000Z-110327T1400Z/ MADISON IL-ST. CLAIR IL-MONROE IL-BOONE MO-MONITEAU MO-COLE MO- OSAGE MO-CALLAWAY MO-MONTGOMERY MO-GASCONADE MO-WARREN MO- ST. CHARLES MO-FRANKLIN MO-ST. LOUIS MO-ST. LOUIS CITY MO- JEFFERSON MO- INCLUDING THE CITIES OF...EDWARDSVILLE...BELLEVILLE...COLUMBIA... JEFFERSON CITY...ST CHARLES...UNION...ST LOUIS 427 AM CDT SUN MAR 27 2011 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...FREEZE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CDT MONDAY... THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CDT MONDAY. A FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING. * TIMING...BELOW FREEZING TEMPERATURES WILL BE POSSIBLE UNTIL 900 AM THIS MORNING. TEMPERATURES ARE EXPECTED TO FALL BELOW FREEZING AGAIN LATE THIS EVENING AND REMAIN BELOW FREEZING UNTIL 900 AM MONDAY. * TEMPERATURES...LOW TEMPERATURES WILL BE FROM 25 TO 28 DEGREES. * IMPACTS...THE AGRICULTURAL COMMUNITY INDICATES THAT DUE TO THE RECENT STRETCH OF WARM WEATHER...MANY PLANTS ARE VULNERABLE TO LOW TEMPERATURES IN THE MIDDLE AND UPPER 20S. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING IS ISSUED WHEN SUB-FREEZING TEMPERATURES ARE FORECAST TO THREATEN OUTDOOR PLANTS. THOSE WITH AGRICULTURAL INTERESTS IN THE WARNED AREA ARE ADVISED TO PROTECT TENDER VEGETATION. ALSO...POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD. && $$ MOZ072-073-272200- /O.NEW.KLSX.FZ.W.0002.110328T0400Z-110328T1400Z/ CRAWFORD MO-WASHINGTON MO- 427 AM CDT SUN MAR 27 2011 ...FREEZE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CDT MONDAY... THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CDT MONDAY. * TIMING...TEMPERATURES ARE EXPECTED TO FALL BELOW FREEZING LATE THIS EVENING AND REMAIN BELOW FREEZING UNTIL 900 AM MONDAY. * TEMPERATURES...LOW TEMPERATURES WILL BE FROM 25 TO 28 DEGREES. * IMPACTS...THE AGRICULTURAL COMMUNITY INDICATES THAT DUE TO THE RECENT STRETCH OF WARM WEATHER...MANY PLANTS ARE VULNERABLE TO LOW TEMPERATURES IN THE MIDDLE AND UPPER 20S. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING IS ISSUED WHEN SUB-FREEZING TEMPERATURES ARE FORECAST TO THREATEN OUTDOOR PLANTS. THOSE WITH AGRICULTURAL INTERESTS IN THE WARNED AREA ARE ADVISED TO PROTECT TENDER VEGETATION. ALSO...POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD. && $$ ILZ069-074-271400- /O.CON.KLSX.FZ.W.0001.000000T0000Z-110327T1400Z/ CLINTON IL-WASHINGTON IL- 427 AM CDT SUN MAR 27 2011 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... A FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING. * TIMING...BELOW FREEZING TEMPERATURES WILL BE POSSIBLE UNTIL 900 AM THIS MORNING. * TEMPERATURES...LOW TEMPERATURES WILL BE FROM 25 TO 28 DEGREES. * IMPACTS...THE AGRICULTURAL COMMUNITY INDICATES THAT DUE TO THE RECENT STRETCH OF WARM WEATHER...MANY PLANTS ARE VULNERABLE TO LOW TEMPERATURES IN THE MIDDLE AND UPPER 20S. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING IS ISSUED WHEN SUB-FREEZING TEMPERATURES ARE FORECAST TO THREATEN OUTDOOR PLANTS. THOSE WITH AGRICULTURAL INTERESTS IN THE WARNED AREA ARE ADVISED TO PROTECT TENDER VEGETATION. ALSO...POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD. && $$ CARNEY
2 follow-up statements
277 WWUS73 KLSX 272034 NPWLSX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE ST LOUIS MO 334 PM CDT SUN MAR 27 2011 ILZ069-074-079-MOZ074-075-084-085-099-281000- /O.EXA.KLSX.FZ.W.0002.110328T0400Z-110328T1400Z/ CLINTON IL-WASHINGTON IL-RANDOLPH IL-ST. FRANCOIS MO- STE. GENEVIEVE MO-IRON MO-MADISON MO-REYNOLDS MO- INCLUDING THE CITIES OF...CHESTER...FARMINGTON 334 PM CDT SUN MAR 27 2011 ...FREEZE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CDT MONDAY... THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CDT MONDAY. * TIMING...TEMPERATURES ARE EXPECTED TO FALL BELOW FREEZING LATE THIS EVENING AND REMAIN BELOW FREEZING UNTIL 900 AM MONDAY. * TEMPERATURES...LOW TEMPERATURES WILL BE FROM 25 TO 28 DEGREES. * IMPACTS...THE AGRICULTURAL COMMUNITY INDICATES THAT DUE TO THE RECENT STRETCH OF WARM WEATHER...MANY PLANTS ARE VULNERABLE TO LOW TEMPERATURES IN THE MIDDLE AND UPPER 20S. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING IS ISSUED WHEN SUB-FREEZING TEMPERATURES ARE FORECAST TO THREATEN OUTDOOR PLANTS. THOSE WITH AGRICULTURAL INTERESTS IN THE WARNED AREA ARE ADVISED TO PROTECT TENDER VEGETATION. ALSO...POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD. && $$ ILZ100>102-MOZ041-047>051-059>065-072-073-281000- /O.CON.KLSX.FZ.W.0002.110328T0400Z-110328T1400Z/ MADISON IL-ST. CLAIR IL-MONROE IL-BOONE MO-MONITEAU MO-COLE MO- OSAGE MO-CALLAWAY MO-MONTGOMERY MO-GASCONADE MO-WARREN MO- ST. CHARLES MO-FRANKLIN MO-ST. LOUIS MO-ST. LOUIS CITY MO- JEFFERSON MO-CRAWFORD MO-WASHINGTON MO- INCLUDING THE CITIES OF...EDWARDSVILLE...BELLEVILLE...COLUMBIA... JEFFERSON CITY...ST CHARLES...UNION...ST LOUIS 334 PM CDT SUN MAR 27 2011 ...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CDT MONDAY... A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CDT MONDAY. * TIMING...TEMPERATURES ARE EXPECTED TO FALL BELOW FREEZING LATE THIS EVENING AND REMAIN BELOW FREEZING UNTIL 900 AM MONDAY. * TEMPERATURES...LOW TEMPERATURES WILL BE FROM 25 TO 28 DEGREES. * IMPACTS...THE AGRICULTURAL COMMUNITY INDICATES THAT DUE TO THE RECENT STRETCH OF WARM WEATHER...MANY PLANTS ARE VULNERABLE TO LOW TEMPERATURES IN THE MIDDLE AND UPPER 20S. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING IS ISSUED WHEN SUB-FREEZING TEMPERATURES ARE FORECAST TO THREATEN OUTDOOR PLANTS. THOSE WITH AGRICULTURAL INTERESTS IN THE WARNED AREA ARE ADVISED TO PROTECT TENDER VEGETATION. ALSO...POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD. && $$ GKS
946 WWUS73 KLSX 280905 NPWLSX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE ST LOUIS MO 405 AM CDT MON MAR 28 2011 ILZ069-074-079-100>102-MOZ041-047>051-059>065-072>075-084-085-099- 281015- /O.CAN.KLSX.FZ.W.0002.000000T0000Z-110328T1400Z/ CLINTON IL-WASHINGTON IL-RANDOLPH IL-MADISON IL-ST. CLAIR IL- MONROE IL-BOONE MO-MONITEAU MO-COLE MO-OSAGE MO-CALLAWAY MO- MONTGOMERY MO-GASCONADE MO-WARREN MO-ST. CHARLES MO-FRANKLIN MO- ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO- WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-IRON MO- MADISON MO-REYNOLDS MO- INCLUDING THE CITIES OF...CHESTER...EDWARDSVILLE...BELLEVILLE... COLUMBIA...JEFFERSON CITY...ST CHARLES...UNION...ST LOUIS... FARMINGTON 405 AM CDT MON MAR 28 2011 ...FREEZE WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS CANCELLED THE FREEZE WARNING. CLOUD COVER ACROSS THE REGION WILL PREVENT TEMPERATURES FROM DROPPING INTO THE MIDDLE AND UPPER 20S FOR A PROLONGED PERIOD OF TIME. $$ TRUETT
Nearby
Freeze Warnings in Missouri, 2011Freeze Warnings in Illinois, 2011Every freeze warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.