Alert archive / Iowa / Freeze Warnings in 2012
Freeze Warning 2, NWS Des Moines, IA
NWS Des Moines, IA issued this freeze warning at Apr 9, 2012, 3:51 AM CDT for 51 counties in Iowa. It took effect at Apr 10, 2012, 3:00 AM CDT. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 9, 2012, 3:51 AM CDT (08:51 UTC)
- In effect from
- Apr 10, 2012, 3:00 AM CDT
- Expired
- Apr 10, 2012, 9:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS Des Moines, IA
All 51 counties
Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Butler County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cerro Gordo County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Emmet County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Jasper County, IA, Kossuth County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Sac County, IA, Story County, IA, Tama County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 23 km from the middle of the area, began a volume at 08:50 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
Omaha, NE (KOAX), launched 00:00Z, 8.9 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
- 2954 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
873 WWUS73 KDMX 090851 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 351 AM CDT MON APR 9 2012 ...BELOW FREEZING TEMPERATURES LIKELY ACROSS MUCH OF IOWA TONIGHT... .AN ELONGATED AREA OF HIGH PRESSURE FROM CANADA INTO THE NORTHERN PLAINS AND ASSOCIATED POOL OF COOLER AIR WILL CONTINUE TO SLOWLY DROP INTO THE MIDWEST OVER THE NEXT SEVERAL DAYS. WITH MOSTLY CLEAR SKIES AND RELATIVELY LIGHT WINDS...TEMPERATURES WILL LIKELY DROP BELOW FREEZING OVERNIGHT ALONG AND NORTH OF HIGHWAY 30 AND INTO THE NISHNABOTNA RIVER VALLEY. TEMPERATURES WILL HOVER NEAR THE FREEZING MARK ELSEWHERE WITH FROST OR FREEZING CONDITIONS POSSIBLE THERE AS WELL. LOW TEMPERATURES IN THE MIDDLE 20S TO LOWER 30S WILL BE EXPECTED OVER MUCH OF THE AREA AGAIN BY WEDNESDAY MORNING WITH ADDITIONAL WARNINGS POSSIBLE. IAZ004>007-015>017-023>028-033>039-044>050-057-070-091700- /O.UPG.KDMX.FZ.A.0002.120410T0800Z-120410T1400Z/ /O.NEW.KDMX.FZ.W.0002.120410T0800Z-120410T1400Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-CASS- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...ATLANTIC 351 AM CDT MON APR 9 2012 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM CDT TUESDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 3 AM TO 9 AM CDT TUESDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT. * TIMING...TEMPERATURES WILL COOL SIGNIFICANTLY OVERNIGHT...DROPPING BELOW FREEZING BY EARLY TUESDAY MORNING. TEMPERATURES MAY REMAIN BELOW FREEZING FOR SEVERAL HOURS BEFORE QUICKLY WARMING AFTER SUNRISE TUESDAY. * TEMPERATURE...MOST AREAS WILL EXPERIENCE MORNING LOW TEMPERATURES IN THE MID TO UPPER 20S. THE COLDEST READINGS WILL BE GENERALLY ALONG AND NORTH OF HIGHWAY 30...AND IN LOW LYING AREAS ALONG THE NISHNABOTNA RIVER VALLEY. FROST MAY ACCOMPANY THESE COOL TEMPERATURES AS WELL. * IMPACTS...YOUNG TENDER VEGETATION MAY BE KILLED OR DAMAGED BY THESE COOL TEMPERATURES AND FROST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ IAZ058>062-071>075-081>086-092>097-091700- /O.CON.KDMX.FZ.A.0002.120410T0800Z-120410T1400Z/ GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-ADAIR-MADISON-WARREN-MARION- MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD- DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...GUTHRIE CENTER...ADEL...DES MOINES... NEWTON...GRINNELL...GREENFIELD...WINTERSET...INDIANOLA... KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON... ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON... CENTERVILLE...BLOOMFIELD 351 AM CDT MON APR 9 2012 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING... * TIMING...TEMPERATURES WILL COOL OVERNIGHT...FALLING TO AT OR BELOW FREEZING BY EARLY TUESDAY MORNING. TEMPERATURES MAY REMAIN NEAR THESE READINGS FOR SEVERAL HOURS BEFORE QUICKLY WARMING AFTER SUNRISE TUESDAY. * TEMPERATURE...MOST AREAS WILL EXPERIENCE MORNING LOW TEMPERATURES PLUS OR MINUS A FEW DEGREES OF FREEZING. FROST WILL ALSO BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. EITHER A FROST ADVISORY OR FREEZE WARNING WILL LIKELY BE ISSUED FOR THESE AREAS LATER TODAY DEPENDING ON FORECAST TRENDS. && $$ SMALL
6 follow-up statements
336 WWUS73 KDMX 091641 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1141 AM CDT MON APR 9 2012 ...BELOW FREEZING TEMPERATURES ACROSS MUCH OF IOWA TONIGHT... .AN ELONGATED AREA OF HIGH PRESSURE FROM CANADA INTO THE NORTHERN PLAINS AND ASSOCIATED POOL OF COOLER AIR WILL CONTINUE TO SLOWLY DROP INTO THE MIDWEST OVER THE NEXT SEVERAL DAYS. WITH MOSTLY CLEAR SKIES AND RELATIVELY LIGHT WINDS...TEMPERATURE NEAR OR BELOW FREEZING ARE EXPECTED ACROSS MUCH OF CENTRAL IOWA. IAZ004>007-015>017-023>028-033>039-044>050-057-070-100045- /O.CON.KDMX.FZ.W.0002.120410T0800Z-120410T1400Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-CASS- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...ATLANTIC 1141 AM CDT MON APR 9 2012 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM CDT TUESDAY... * TIMING...TEMPERATURES WILL COOL SIGNIFICANTLY OVERNIGHT... DROPPING BELOW FREEZING BY EARLY TUESDAY MORNING. TEMPERATURES WILL REMAIN BELOW FREEZING FOR SEVERAL HOURS BEFORE QUICKLY WARMING AFTER SUNRISE TUESDAY. * TEMPERATURE...MOST AREAS WILL EXPERIENCE MORNING LOW TEMPERATURES IN THE MID TO UPPER 20S. THE COLDEST READINGS WILL BE GENERALLY ALONG AND NORTH OF HIGHWAY 30...AND IN LOW LYING AREAS ALONG THE NISHNABOTNA RIVER VALLEY. FROST MAY ACCOMPANY THESE COOL TEMPERATURES AS WELL. * IMPACTS...YOUNG TENDER VEGETATION MAY BE KILLED OR DAMAGED BY THESE COOL TEMPERATURES AND FROST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ IAZ058>062-071>075-081>086-092>097-100045- /O.CON.KDMX.FZ.A.0002.120410T0800Z-120410T1400Z/ GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-ADAIR-MADISON-WARREN-MARION- MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD- DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...GUTHRIE CENTER...ADEL...DES MOINES... NEWTON...GRINNELL...GREENFIELD...WINTERSET...INDIANOLA... KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON... ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON... CENTERVILLE...BLOOMFIELD 1141 AM CDT MON APR 9 2012 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING... * TIMING...TEMPERATURES WILL COOL OVERNIGHT...FALLING TO AT OR BELOW FREEZING BY EARLY TUESDAY MORNING. TEMPERATURES MAY REMAIN NEAR THESE READINGS FOR SEVERAL HOURS BEFORE QUICKLY WARMING AFTER SUNRISE TUESDAY. * TEMPERATURE...MOST AREAS WILL EXPERIENCE MORNING LOW TEMPERATURES PLUS OR MINUS A FEW DEGREES OF FREEZING. FROST WILL ALSO BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. EITHER A FROST ADVISORY OR FREEZE WARNING WILL LIKELY BE ISSUED FOR THESE AREAS LATER TODAY DEPENDING ON FORECAST TRENDS. && $$ CC
233 WWUS73 KDMX 092028 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 328 PM CDT MON APR 9 2012 ...BELOW FREEZING TEMPERATURES ACROSS CENTRAL IOWA TONIGHT... .AN ELONGATED AREA OF HIGH PRESSURE WILL EXTEND FROM CANADA INTO THE MISSOURI RIVER VALLEY THROUGH WEDNESDAY MORNING. AN ASSOCIATED POOL OF COOLER AIR WILL CONTINUE TO SLOWLY DROP INTO THE MIDWEST OVER THE NEXT SEVERAL DAYS. WITH MOSTLY CLEAR SKIES AND RELATIVELY LIGHT WINDS...TEMPERATURE NEAR OR BELOW FREEZING ARE EXPECTED ACROSS ALL OF CENTRAL IOWA TONIGHT. ANOTHER COLD NIGHT IS EXPECTED TUESDAY NIGHT WITH FREEZING TEMPERATURES ANTICIPATED AS WELL. IAZ058>062-071>075-081>086-092>097-100400- /O.UPG.KDMX.FZ.A.0002.120410T0800Z-120410T1400Z/ /O.EXA.KDMX.FZ.W.0002.120410T0800Z-120410T1400Z/ GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-ADAIR-MADISON-WARREN-MARION- MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD- DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...GUTHRIE CENTER...ADEL...DES MOINES... NEWTON...GRINNELL...GREENFIELD...WINTERSET...INDIANOLA... KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON... ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON... CENTERVILLE...BLOOMFIELD 328 PM CDT MON APR 9 2012 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM CDT TUESDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 3 AM TO 9 AM CDT TUESDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT. * TIMING...TEMPERATURES WILL COOL OVERNIGHT...FALLING TO OR BELOW FREEZING BY EARLY TUESDAY MORNING. TEMPERATURES MAY REMAIN NEAR THESE READINGS FOR SEVERAL HOURS BEFORE QUICKLY WARMING AFTER SUNRISE TUESDAY. ANOTHER NIGHT OF AT OR BELOW FREEZING TEMPERATURES IS EXPECTED TUESDAY NIGHT AND A FREEZE WARNING MAY BE NEEDED DURING THAT TIME AS WELL. * TEMPERATURE...MOST AREAS WILL EXPERIENCE MORNING LOW FROM 29 TO 32 DEGREES. THE TEMPERATURES ARE EXPECTED TO CLIMB QUICKLY AFTER SUNRISE. * IMPACTS...YOUNG TENDER VEGETATION WILL LIKELY BE DAMAGED OR EVEN KILLED BY THESE COOL TEMPERATURES AND FROST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ IAZ004>007-015>017-023>028-033>039-044>050-057-070-100400- /O.CON.KDMX.FZ.W.0002.120410T0800Z-120410T1400Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-CASS- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...ATLANTIC 328 PM CDT MON APR 9 2012 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM CDT TUESDAY... * TIMING...TEMPERATURES WILL COOL SIGNIFICANTLY OVERNIGHT... DROPPING BELOW FREEZING BY EARLY TUESDAY MORNING. TEMPERATURES WILL REMAIN BELOW FREEZING FOR SEVERAL HOURS BEFORE QUICKLY WARMING AFTER SUNRISE TUESDAY. ANOTHER NIGHT OF TEMPERATURES IN THE 20S ARE EXPECTED TUESDAY NIGHT AND A FREEZE WARNING IS LIKELY DURING THIS TIME AS WELL. * TEMPERATURE...MOST AREAS WILL EXPERIENCE MORNING LOW TEMPERATURES IN THE MID TO UPPER 20S. THE COLDEST READINGS WILL BE GENERALLY ALONG AND NORTH OF HIGHWAY 20...AND IN THE LOW LYING RIVER VALLEYS OF WEST CENTRAL IOWA. FROST MAY ACCOMPANY THESE COOL TEMPERATURES AS WELL. * IMPACTS...YOUNG TENDER VEGETATION WILL LIKELY BE DAMAGED OR EVEN KILLED BY THESE COOL TEMPERATURES AND FROST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ CC
823 WWUS73 KDMX 092121 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 421 PM CDT MON APR 9 2012 ...BELOW FREEZING TEMPERATURES ACROSS CENTRAL IOWA TONIGHT... .AN ELONGATED AREA OF HIGH PRESSURE WILL EXTEND FROM CANADA INTO THE MISSOURI RIVER VALLEY THROUGH WEDNESDAY MORNING. AN ASSOCIATED POOL OF COOLER AIR WILL CONTINUE TO SLOWLY DROP INTO THE MIDWEST OVER THE NEXT SEVERAL DAYS. WITH MOSTLY CLEAR SKIES AND RELATIVELY LIGHT WINDS...TEMPERATURE NEAR OR BELOW FREEZING ARE EXPECTED ACROSS ALL OF CENTRAL IOWA TONIGHT. ANOTHER COLD NIGHT IS EXPECTED TUESDAY NIGHT WITH FREEZING TEMPERATURES ANTICIPATED AS WELL. IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-100500- /O.CON.KDMX.FZ.W.0002.120410T0800Z-120410T1400Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE- APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL...DES MOINES...NEWTON...GRINNELL...ATLANTIC...GREENFIELD... WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD 421 PM CDT MON APR 9 2012 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM CDT TUESDAY... * TIMING...TEMPERATURES WILL COOL SIGNIFICANTLY OVERNIGHT... DROPPING BELOW FREEZING BY EARLY TUESDAY MORNING. TEMPERATURES WILL REMAIN BELOW FREEZING FOR SEVERAL HOURS BEFORE QUICKLY WARMING AFTER SUNRISE TUESDAY. ANOTHER NIGHT OF TEMPERATURES IN THE 20S ARE EXPECTED TUESDAY NIGHT AND A FREEZE WARNING IS LIKELY DURING THIS TIME AS WELL. * TEMPERATURE...MOST AREAS WILL EXPERIENCE MORNING LOW TEMPERATURES IN THE MID TO UPPER 20S. THE COLDEST READINGS WILL BE GENERALLY ALONG AND NORTH OF HIGHWAY 20...AND IN THE LOW LYING RIVER VALLEYS OF WEST CENTRAL IOWA. FROST MAY ACCOMPANY THESE COOL TEMPERATURES AS WELL. * IMPACTS...YOUNG TENDER VEGETATION WILL LIKELY BE DAMAGED OR EVEN KILLED BY THESE COOL TEMPERATURES AND FROST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ CC
443 WWUS73 KDMX 100156 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 856 PM CDT MON APR 9 2012 ...BELOW FREEZING TEMPERATURES ACROSS CENTRAL IOWA TONIGHT AND AGAIN TUESDAY NIGHT... .AN ELONGATED AREA OF HIGH PRESSURE WILL EXTEND FROM CANADA INTO THE MISSOURI RIVER VALLEY THROUGH WEDNESDAY MORNING. AN ASSOCIATED POOL OF COLDER AIR WILL CONTINUE TO SLOWLY DROP INTO THE MIDWEST OVER THE NEXT SEVERAL DAYS. WITH MOSTLY CLEAR SKIES AND RELATIVELY LIGHT WINDS...TEMPERATURES NEAR OR BELOW FREEZING ARE EXPECTED ACROSS ALL OF CENTRAL IOWA TONIGHT AND AGAIN TUESDAY NIGHT. IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-101000- /O.NEW.KDMX.FZ.W.0003.120411T0800Z-120411T1400Z/ /O.CON.KDMX.FZ.W.0002.120410T0800Z-120410T1400Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE- APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL...DES MOINES...NEWTON...GRINNELL...ATLANTIC...GREENFIELD... WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD 856 PM CDT MON APR 9 2012 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM CDT TUESDAY... ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM CDT WEDNESDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 3 AM TO 9 AM CDT WEDNESDAY. * TIMING...TEMPERATURES WILL DROP TO NEAR FREEZING OR BELOW FREEZING LATE TONIGHT AND REMAIN BELOW FREEZING FOR SEVERAL HOURS BEFORE QUICKLY WARMING AFTER SUNRISE TUESDAY MORNING. OVERNIGHT TEMPERATURES ARE EXPECTED TO FALL BELOW FREEZING AGAIN LATE TUESDAY NIGHT INTO EARLY WEDNESDAY MORNING. * TEMPERATURE...AREAS ALONG AND NORTH OF HIGHWAY 30 WILL DROP INTO THE MID TO UPPER 20S LATE TONIGHT AND AGAIN TUESDAY NIGHT. MOST AREAS SOUTH OF HIGHWAY 30 WILL FALL INTO THE LOWER 30S TO AROUND FREEZING LATE TONIGHT AND AGAIN TUESDAY NIGHT...WITH THE EXCEPTION OF THE LOW LYING RIVER VALLEYS OF WEST CENTRAL IOWA THAT COULD WILL INTO THE UPPER 20S BOTH NIGHTS. FROST IS POSSIBLE ACROSS THE AREA AS WELL. * IMPACTS...YOUNG TENDER VEGETATION WILL LIKELY BE DAMAGED OR EVEN KILLED BY THESE COOL TEMPERATURES AND FROST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ BEERENDS
683 WWUS73 KDMX 100842 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 342 AM CDT TUE APR 10 2012 ...BELOW FREEZING TEMPERATURES ACROSS CENTRAL IOWA THIS MORNING AND AGAIN LATE TONIGHT INTO EARLY WEDNESDAY... .HIGH PRESSURE EXTENDING FROM CENTRAL CANADA INTO THE THE LOWER MISSOURI VALLY WILL MOVE LITTLE THROUGH WEDNESDAY MORNING. COLD AIR WILL CONTINUE TO DROP SLOWLY INTO THE MIDWEST INTO WEDNESDAY. MOSTLY CLEAR SKIES AND LIGHT NIGHTTIME WINDS WILL ALLOW TEMPERATURES TO FALL NEAR TO BELOW FREEZING BOTH THIS MORNING AND EARLY WEDNESDAY. IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-101645- /O.CON.KDMX.FZ.W.0002.000000T0000Z-120410T1400Z/ /O.CON.KDMX.FZ.W.0003.120411T0800Z-120411T1400Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE- APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL...DES MOINES...NEWTON...GRINNELL...ATLANTIC...GREENFIELD... WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD 342 AM CDT TUE APR 10 2012 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM CDT WEDNESDAY... * TIMING...TEMPERATURES WILL REMAIN NEAR OR BELOW FREEZING THIS MORNING...BUT WILL WARM RAPIDLY AFTER SUNRISE. OVERNIGHT TEMPERATURES ARE EXPECTED TO FALL BELOW FREEZING AGAIN LATE TONIGHT INTO EARLY WEDNESDAY MORNING. * TEMPERATURE...AREAS ALONG AND NORTH OF HIGHWAY 30 WILL BE IN THE 20S THIS MORNING...WITH UPPER TEENS AND 20S AGAIN LATE TONIGHT INTO EARLY WEDNESDAY MORNING. MOST AREAS SOUTH OF HIGHWAY 30 WILL BE IN THE LOW 30S THIS MORNING...AND FALL INTO THE MID 20S TO AROUND 30 LATE TONIGHT INTO EARLY WEDNESDAY MORNING. * IMPACTS...YOUNG TENDER VEGETATION WILL LIKELY BE DAMAGED OR EVEN KILLED BY THESE COOL TEMPERATURES AND FROST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$
750 WWUS73 KDMX 101428 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 928 AM CDT TUE APR 10 2012 ...BELOW FREEZING TEMPERATURES ACROSS CENTRAL IOWA AGAIN LATE TONIGHT INTO EARLY WEDNESDAY... .HIGH PRESSURE EXTENDING FROM CENTRAL CANADA INTO THE THE LOWER MISSOURI VALLY WILL MOVE LITTLE THROUGH WEDNESDAY MORNING. COLD AIR WILL CONTINUE TO DROP SLOWLY INTO THE MIDWEST INTO WEDNESDAY. MOSTLY CLEAR SKIES AND LIGHT NIGHTTIME WINDS WILL ALLOW TEMPERATURES TO FALL NEAR TO BELOW FREEZING AGAIN EARLY WEDNESDAY. IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-102230- /O.EXP.KDMX.FZ.W.0002.000000T0000Z-120410T1400Z/ /O.CON.KDMX.FZ.W.0003.120411T0800Z-120411T1400Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE- APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL...DES MOINES...NEWTON...GRINNELL...ATLANTIC...GREENFIELD... WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... MOUNT AYR...LEON...CORYDON...CENTERVILLE...BLOOMFIELD 928 AM CDT TUE APR 10 2012 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM CDT WEDNESDAY... ...FREEZE WARNING HAS EXPIRED... * TIMING...TEMPERATURES WILL FALL BELOW FREEZING AGAIN AFTER MIDNIGHT AND REMAIN THERE UNTIL AFTER SUNRISE ON WEDNESDAY. * TEMPERATURE...AREAS ALONG AND NORTH OF HIGHWAY 30 WILL BE IN THE UPPER TEENS TO MID 20S LATE TONIGHT INTO WEDNESDAY MORNING. MOST AREAS SOUTH OF HIGHWAY 30 WILL BE IN THE MID 20S TO AROUND 30 LATE TONIGHT INTO EARLY WEDNESDAY MORNING. * IMPACTS...YOUNG TENDER VEGETATION WILL LIKELY BE DAMAGED OR EVEN KILLED BY THESE COLD FREEZING TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 3:49 AM CDT | Red Flag Warning | DMX | Emmet, Humboldt, Kossuth, Palo Alto, Pocahontas, Sac | 15 hr |
Nearby
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.