Alert archive / Iowa / Winter Storm Warnings in 2009
Winter Storm Warning 4, NWS Des Moines, IA
NWS Des Moines, IA issued this winter storm warning at Feb 25, 2009, 9:25 PM CST for 7 counties in Iowa. It took effect at Feb 26, 2009, 6:00 AM CST. It was in force for 9 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
- Feb 25, 2009, 9:25 PM CST (03:25 UTC)
- In effect from
- Feb 26, 2009, 6:00 AM CST
- Expired
- Feb 26, 2009, 3:25 PM CST
- In force
- 9 hr
- Issued by
- NWS Des Moines, IA
Counties Cerro Gordo County, IA, Emmet County, IA, Hancock County, IA, Kossuth County, IA, Palo Alto County, IA, Winnebago County, IA, Worth County, IA
The radar
The Des Moines radar (KDMX), 167 km from the middle of the area, began a volume at 03:30 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 |
|---|---|---|---|
| Feb 26, 9:55 AM CST | HEAVY SLEET 0.5 | Estherville, IA | MODERATE SLEET CURRENTLY. SOME SLEET UP TO PEA SIZE. ALL HIGHWAYS BECOMING SLUSH COVERED. |
| Feb 26, 10:00 AM CST | FREEZING RAIN 0.1 | Emmetsburg, IA | MODERATE FREEZING RAIN ONGOING. STREETS VERY SLICK. |
| Feb 26, 10:23 AM CST | FREEZING RAIN 0.01 | Swea City, IA | LIGHT GLAZING OF ICE. FREEZING RAIN AND SLEET MIX CURRENTLY. ONE HALF INCH SNOW AND SLEET ACCUMULATION EARLIER. |
| Feb 26, 12:13 PM CST | HEAVY SLEET 0.5 | 1 Nnw Mason City, IA | ROADS COVERED WITH SLEET. |
| Feb 26, 2:18 PM CST | HEAVY SLEET 1 | Estherville, IA | |
| Feb 26, 2:25 PM CST | HEAVY SLEET 0.5 | Northwood, IA | LESS THAN AN INCH OF SLEET AND SNOW. AMOUNT OF SLEET ESTIMATED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 3.4 hours before the alert went out and 183 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
- 1294 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 93 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.
000 WWUS43 KDMX 260325 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 925 PM CST WED FEB 25 2009 ...WINTER STORM TO BRING FREEZING RAIN...SLEET AND SNOW TO PORTIONS OF NORTHERN IOWA THURSDAY... .LOW PRESSURE DEVELOPING OVER THE CENTRAL ROCKIES WILL MOVE IN TO KANSAS TONIGHT...THEN TRACK EAST-NORTHEAST ACROSS NORTHERN MISSOURI AND SOUTHEAST IOWA THURSDAY. A MIX OF WINTER PRECIPITATION IS EXPECTED...WITH THE MOST SIGNIFICANT OVER THE NORTHERN PART OF IOWA. FREEZING RAIN...SLEET...AND SNOW ARE THE THREAT NORTH OF U.S. HIGHWAY 20. IAZ004>007-015>017-261100- /O.UPG.KDMX.WS.A.0002.090226T1200Z-090227T0000Z/ /O.NEW.KDMX.WS.W.0004.090226T1200Z-090227T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 925 PM CST WED FEB 25 2009 ...WINTER STORM WARNING IN EFFECT FROM 6 AM TO 6 PM CST THURSDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER STORM WARNING FOR A MIX OF HEAVY SNOW...SLEET...AND FREEZING RAIN...WHICH IS IN EFFECT FROM 6 AM TO 6 PM CST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. A SIGNIFICANT WINTER STORM IS EXPECTED TO ARRIVE TOWARD DAYBREAK THURSDAY. A MIX OF WINTER PRECIPITATION IS EXPECTED ACROSS NORTHERN IOWA. FREEZING RAIN IS EXPECTED TO SPREAD EASTWARD ACROSS NORTHERN IOWA DURING THE MORNING...BECOMING MIXED WITH SLEET AND SNOW TOWARD MID DAY...AND GRADUALLY CHANGING TO ALL SNOW LATE IN THE DAY. ONE TENTH TO NEARLY A QUARTER OF AN INCH OF ICE ACCRUAL IS POSSIBLE ALONG AND NORTH OF A LINE FROM MALLARD...TO KANAWHA...TO ROCKWELL...INCLUDING MASON CITY...ALGONA...AND ESTHERVILLE. IN ADDITION TO THE ICE...MODERATE SNOW OF 2 TO 4 INCHES WITH AS MUCH AS 6 INCHES POSSIBLE NEAR THE MINNESOTA BORDER IS EXPECTED BEFORE THE SNOW TAPERS OFF THURSDAY EVENING. SNOW IS EXPECTED TO BE HEAVY AT TIMES THROUGHOUT THE WARNING AREA...WITH SNOWFALL RATES OF ONE TO TWO INCHES PER HOUR COMMON THURSDAY AFTERNOON. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...SLEET...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IAZ023>028-261100- /O.UPG.KDMX.WS.A.0002.090226T1200Z-090227T0000Z/ /O.NEW.KDMX.WW.Y.0012.090226T1200Z-090227T0000Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY 925 PM CST WED FEB 25 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TO 6 PM CST THURSDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER WEATHER ADVISORY FOR FREEZING RAIN...SLEET...AND SNOW WHICH IS IN EFFECT FROM 6 AM TO 6 PM CST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. FREEZING RAIN IS EXPECTED TO BEGIN ACROSS WEST CENTRAL IOWA TOWARD DAYBREAK...WITH THE FREEZING RAIN SPREADING EASTWARD ACROSS THE HIGHWAY 30 AND 20 CORRIDORS THURSDAY MORNING. EASTERN PORTIONS OF THE ADVISORY AREA MAY INITIALLY SEE RAIN AND AN ISOLATED THUNDERSTORM...BUT AS COLDER AIR MOVES INTO THE AREA BY LATE THURSDAY MORNING...THE RAIN WILL CHANGE OVER TO FREEZING RAIN. THE FREEZING RAIN IS EXPECTED TO MIX WITH SLEET AND SNOW BY THURSDAY AFTERNOON. A TENTH TO AS MUCH AS TWO TENTHS OF AN INCH OF ICE ACCRUAL IS EXPECTED WITH THIS STORM. IN ADDITION TO THE ICE...AN INCH OR TWO OF A SNOW AND SLEET MIXTURE IS ALSO POSSIBLE BY THE TIME THE PRECIPITATION TAPERS OFF BY LATE THURSDAY AFTERNOON INTO THURSDAY EVENING. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IAZ033-044-045-261100- /O.NEW.KDMX.WW.Y.0012.090226T0900Z-090227T0000Z/ SAC-CRAWFORD-CARROLL- INCLUDING THE CITIES OF...SAC CITY...DENISON...CARROLL 925 PM CST WED FEB 25 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 6 PM CST THURSDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER WEATHER ADVISORY FOR FREEZING RAIN...SLEET...AND SNOW WHICH IS IN EFFECT FROM 3 AM TO 6 PM CST THURSDAY. FREEZING RAIN IS EXPECTED TO BEGIN ACROSS WEST CENTRAL IOWA TOWARD DAYBREAK...WITH THE FREEZING RAIN SPREADING EASTWARD ACROSS THE HIGHWAY 30 AND 20 CORRIDORS THURSDAY MORNING. EASTERN PORTIONS OF THE ADVISORY AREA MAY INITIALLY SEE RAIN AND AN ISOLATED THUNDERSTORM...BUT AS COLDER AIR MOVES INTO THE AREA BY LATE THURSDAY MORNING...THE RAIN WILL CHANGE OVER TO FREEZING RAIN. THE FREEZING RAIN IS EXPECTED TO MIX WITH SLEET AND SNOW BY THURSDAY AFTERNOON. A TENTH TO AS MUCH AS TWO TENTHS OF AN INCH OF ICE ACCRUAL IS EXPECTED WITH THIS STORM. IN ADDITION TO THE ICE...AN INCH OR TWO OF A SNOW AND SLEET MIXTURE IS ALSO POSSIBLE BY THE TIME THE PRECIPITATION TAPERS OFF BY LATE THURSDAY AFTERNOON INTO THURSDAY EVENING. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IAZ034>039-046-047-261100- /O.NEW.KDMX.WW.Y.0012.090226T1200Z-090227T0000Z/ CALHOUN-WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-GREENE-BOONE- INCLUDING THE CITIES OF...ROCKWELL CITY...FORT DODGE... WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...JEFFERSON... BOONE 925 PM CST WED FEB 25 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TO 6 PM CST THURSDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER WEATHER ADVISORY FOR FREEZING RAIN...SLEET...AND SNOW WHICH IS IN EFFECT FROM 6 AM TO 6 PM CST THURSDAY. FREEZING RAIN IS EXPECTED TO BEGIN ACROSS WEST CENTRAL IOWA TOWARD DAYBREAK...WITH THE FREEZING RAIN SPREADING EASTWARD ACROSS THE HIGHWAY 30 AND 20 CORRIDORS THURSDAY MORNING. EASTERN PORTIONS OF THE ADVISORY AREA MAY INITIALLY SEE RAIN AND AN ISOLATED THUNDERSTORM...BUT AS COLDER AIR MOVES INTO THE AREA BY LATE THURSDAY MORNING...THE RAIN WILL CHANGE OVER TO FREEZING RAIN. THE FREEZING RAIN IS EXPECTED TO MIX WITH SLEET AND SNOW BY THURSDAY AFTERNOON. A TENTH TO AS MUCH AS TWO TENTHS OF AN INCH OF ICE ACCRUAL IS EXPECTED WITH THIS STORM. IN ADDITION TO THE ICE...AN INCH OR TWO OF A SNOW AND SLEET MIXTURE IS ALSO POSSIBLE BY THE TIME THE PRECIPITATION TAPERS OFF BY LATE THURSDAY AFTERNOON INTO THURSDAY EVENING. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ MJA
5 follow-up statements
000 WWUS43 KDMX 260956 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 356 AM CST THU FEB 26 2009 ...WINTER STORM TO BRING FREEZING RAIN...SLEET AND SNOW TO PORTIONS OF NORTHERN IOWA THURSDAY... .LOW PRESSURE DEVELOPING OVER COLORADO WILL MOVE IN TO EASTERN KANSAS THIS AFTERNOON...THEN TRACK EAST-NORTHEAST ACROSS NORTHERN MISSOURI AND SOUTHEAST IOWA BY EARLY THIS EVENING. A MIX OF WINTER PRECIPITATION IS EXPECTED...WITH THE MOST SIGNIFICANT OVER THE NORTHERN PART OF IOWA. FREEZING RAIN...SLEET...AND SNOW ARE THE THREAT NORTH OF U.S. HIGHWAY 20 WITH THE POSSIBILITY OF SOME THUNDER SLEET AND THUNDER FREEZING RAIN AS WELL. IAZ004>007-015>017-261800- /O.CON.KDMX.WS.W.0004.090226T1200Z-090227T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 356 AM CST THU FEB 26 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... A SIGNIFICANT WINTER STORM WILL ARRIVE EARLY TODAY. A MIX OF WINTER PRECIPITATION WILL OCCUR THROUGH THE DAY. FREEZING RAIN IS EXPECTED TO SPREAD EASTWARD ACROSS NORTHERN AND CENTRAL IOWA DURING THE MORNING...BECOMING MIXED WITH SLEET AND SNOW BY EARLY AFTERNOON...AND GRADUALLY CHANGING TO ALL SNOW LATE IN THE DAY. ONE TENTH TO THREE TENTHS OF AN INCH OF ICE ACCUMULATION IS POSSIBLE ALONG AND NORTH OF A LINE FROM MALLARD...TO KANAWHA...TO ROCKWELL... INCLUDING MASON CITY...ALGONA...AND ESTHERVILLE. IN ADDITION TO THE ICE...MODERATE SNOW OF 2 TO 4 INCHES WITH AS MUCH AS 6 INCHES POSSIBLE NEAR THE MINNESOTA BORDER BEFORE THE SNOW ENDS THIS EVENING. SNOW IS EXPECTED TO BE HEAVY AT TIMES THROUGHOUT THE WARNING AREA...WITH SNOWFALL RATES OF ONE TO TWO INCHES PER HOUR COMMON THIS AFTERNOON. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...SLEET ...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IAZ048>050-261800- /O.EXA.KDMX.WW.Y.0012.090226T1200Z-090227T0000Z/ STORY-MARSHALL-TAMA- INCLUDING THE CITIES OF...AMES...MARSHALLTOWN...TOLEDO 356 AM CST THU FEB 26 2009 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER WEATHER ADVISORY FOR FREEZING RAIN...WHICH IS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. FREEZING RAIN IS EXPECTED TO BEGIN ACROSS WEST CENTRAL IOWA TOWARD DAYBREAK...WITH THE FREEZING RAIN SPREADING EASTWARD ACROSS THE HIGHWAY 30 AND 20 CORRIDORS THIS MORNING. THE ADVISORY AREA MAY ALSO SEE AN ISOLATED THUNDERSTORM WITH THE FREEZING RAIN BEFORE THE FREEZING RAIN CHANGES OVER TO RAIN IN THE AFTERNOON. THE RAIN IS EXPECTED TO MIX WITH FREEZING RAIN...SLEET AND SNOW BY LATE THIS AFTERNOON ONCE AGAIN. A TENTH TO AS MUCH AS TWO TENTHS OF AN INCH OF ICE ACCUMULATION IS EXPECTED. IN ADDITION TO THE ICE...AN INCH OF A SNOW AND SLEET MIXTURE IS ALSO POSSIBLE BY THE TIME THE PRECIPITATION TAPERS OFF BY THIS EVENING. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IAZ033-044-045-261800- /O.CON.KDMX.WW.Y.0012.000000T0000Z-090227T0000Z/ SAC-CRAWFORD-CARROLL- INCLUDING THE CITIES OF...SAC CITY...DENISON...CARROLL 356 AM CST THU FEB 26 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... FREEZING RAIN IS EXPECTED TO BEGIN ACROSS WEST CENTRAL IOWA THIS MORNING...WITH THE FREEZING RAIN SPREADING EASTWARD ACROSS THE HIGHWAY 30 AND 20 CORRIDORS TODAY. PORTIONS OF THE ADVISORY AREA MAY INITIALLY SEE FREEZING RAIN AND ISOLATED THUNDERSTORMS... BUT AS COLDER AIR MOVES INTO THE AREA BY LATE MORNING OR EARLY AFTERNOON...THE FREEZING RAIN IS EXPECTED TO MIX WITH SLEET AND SNOW. A TENTH TO AS MUCH AS TWO TENTHS OF AN INCH OF ICE ACCUMULATION IS EXPECTED WITH THIS STORM. IN ADDITION TO THE ICE...AN INCH OR TWO OF A SNOW AND SLEET MIXTURE IS ALSO POSSIBLE BY THE TIME THE PRECIPITATION TAPERS OFF BY EARLY EVENING. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ IAZ023>028-034>039-046-047-261800- /O.CON.KDMX.WW.Y.0012.090226T1200Z-090227T0000Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-CALHOUN-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-GREENE-BOONE- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...ROCKWELL CITY...FORT DODGE... WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...JEFFERSON... BOONE 356 AM CST THU FEB 26 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... FREEZING RAIN IS EXPECTED TO BEGIN ACROSS WEST CENTRAL IOWA EARLY THIS MORNING...WITH THE FREEZING RAIN SPREADING EASTWARD ACROSS THE HIGHWAY 30 AND 20 CORRIDORS THIS MORNING. WESTERN PORTIONS OF THE ADVISORY AREA MAY SEE FREEZING RAIN AND ISOLATED THUNDERSTORMS. THE FREEZING RAIN IS EXPECTED TO MIX WITH SLEET AND SNOW THIS AFTERNOON. A TENTH TO AS MUCH AS TWO TENTHS OF AN INCH OF ICE ACCUMULATION IS EXPECTED. IN ADDITION TO THE ICE...AN INCH OR TWO OF A SNOW AND SLEET MIXTURE IS ALSO POSSIBLE BY THE TIME THE PRECIPITATION ENDS BY LATE THIS AFTERNOON OR EARLY EVENING. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ REV
000 WWUS43 KDMX 261359 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 759 AM CST THU FEB 26 2009 ...FREEZING RAIN...SLEET AND SNOW IS STILL EXPECTED TO AFFECT PORTIONS OF NORTHERN IOWA THURSDAY... .LOW PRESSURE DEVELOPING OVER COLORADO WILL MOVE INTO EASTERN KANSAS BY THIS AFTERNOON. THE STORM WILL THEN TRACK EAST-NORTHEAST ACROSS NORTHERN MISSOURI AND SOUTHEAST IOWA BY EARLY THIS EVENING. A MIX OF WINTER PRECIPITATION IS EXPECTED...WITH THE MOST SIGNIFICANT OVER THE NORTHERN PART OF IOWA. FREEZING RAIN... SLEET...AND SNOW ARE THE THREAT NORTH OF U.S. HIGHWAY 20 WITH THE POSSIBILITY OF SOME THUNDER SLEET AND THUNDER FREEZING RAIN AS WELL. IAZ004>007-015>017-262200- /O.CON.KDMX.WS.W.0004.000000T0000Z-090227T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 759 AM CST THU FEB 26 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. A SIGNIFICANT WINTER STORM WILL MOVE INTO THE AREA BY 10 AM. A MIX OF WINTER PRECIPITATION WILL OCCUR THROUGH THE DAY. INITIALLY FREEZING RAIN IS EXPECTED TO SPREAD INTO NORTHERN IOWA...NORTHWEST OF A MANNING TO BUFFALO CENTER LINE. THIS AREA OF FREEZING RAIN WILL THEN SPREAD EAST ACROSS NORTHERN IOWA INTO THE EARLY AFTERNOON. THE PRECIPITATION WILL GRADUALLY CHANGE OVER SNOW LATER THIS AFTERNOON. ONE TENTH TO THREE TENTHS OF AN INCH OF ICE ACCUMULATION IS POSSIBLE ALONG AND NORTH OF A LINE FROM MALLARD...TO KANAWHA...TO ROCKWELL... INCLUDING MASON CITY...ALGONA...AND ESTHERVILLE. IN ADDITION TO THE ICE...MODERATE SNOW OF 2 TO 4 INCHES WITH AS MUCH AS 6 INCHES POSSIBLE NEAR THE MINNESOTA BORDER BEFORE THE SNOW ENDS THIS EVENING. SNOW IS EXPECTED TO BE HEAVY AT TIMES THROUGHOUT THE WARNING AREA...WITH SNOWFALL RATES OF ONE TO TWO INCHES PER HOUR COMMON THIS AFTERNOON. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...SLEET ...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IAZ023>028-033>039-044>050-262200- /O.CON.KDMX.WW.Y.0012.000000T0000Z-090227T0000Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...SAC CITY...ROCKWELL CITY... FORT DODGE...WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO... DENISON...CARROLL...JEFFERSON...BOONE...AMES...MARSHALLTOWN... TOLEDO 759 AM CST THU FEB 26 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. A SIGNIFICANT WINTER STORM WILL MOVE INTO THE AREA BY 10 AM. A MIX OF WINTER PRECIPITATION WILL OCCUR THROUGH THE DAY. FREEZING RAIN IS EXPECTED TO SPREAD INTO NORTHERN IOWA...NORTHWEST OF A MANNING TO BUFFALO CENTER LINE. THIS AREA OF FREEZING RAIN WILL THEN SPREAD EAST ACROSS NORTHERN AND CENTRAL IOWA THROUGH THE REMAINDER OF THE DAY. THE ADVISORY AREA MAY ALSO SEE AN ISOLATED THUNDERSTORM WITH THE FREEZING RAIN BEFORE THE FREEZING RAIN CHANGES OVER TO RAIN IN THE AFTERNOON. THE RAIN IS EXPECTED TO MIX WITH FREEZING RAIN...SLEET AND SNOW BY LATE THIS AFTERNOON OR EARLY EVENING. A TENTH TO AS MUCH AS TWO TENTHS OF AN INCH OF ICE ACCUMULATION IS EXPECTED. IN ADDITION TO THE ICE...AN INCH OF A SNOW AND SLEET MIXTURE IS ALSO POSSIBLE BY THE TIME THE PRECIPITATION TAPERS OFF BY THIS EVENING. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ FAB
000 WWUS43 KDMX 261711 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1111 AM CST THU FEB 26 2009 ...WINTRY MIX OF PRECIPITATION ONGOING NORTHERN IOWA THURSDAY... .STRONG LOW PRESSURE DEVELOPING WILL MOVE ACROSS MISSOURI INTO NORTHERN ILLINOIS THIS AFTERNOON. A MIX OF WINTER PRECIPITATION WILL CONTINUE...WITH THE MOST SIGNIFICANT OVER THE NORTHERN PART OF IOWA. FREEZING RAIN... SLEET...AND SNOW ARE THE THREAT ALONG AND NORTH OF HIGHWAY 30...ACCOMPANIED AT TIMES BY THUNDER AND HIGH INTENSITY PRECIPITATION. IAZ004>007-015>017-270000- /O.CON.KDMX.WS.W.0004.000000T0000Z-090227T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 1111 AM CST THU FEB 26 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. A SIGNIFICANT WINTER STORM WILL CONTINUE ACROSS NORTHERN IOWA INTO THE EARLY EVENING HOURS. A MIX OF FREEZING RAIN...AND SLEET WILL GRADUALLY CHANGE OVER TO ALL SNOW LATER THIS AFTERNOON. ONE TENTH TO THREE TENTHS OF AN INCH OF ICE ACCUMULATION IS POSSIBLE ALONG AND NORTH OF A LINE FROM MALLARD...TO KANAWHA...TO ROCKWELL... INCLUDING MASON CITY... ALGONA...AND ESTHERVILLE. IN ADDITION TO THE ICE...MODERATE SNOW OF 2 TO 4 INCHES IS POSSIBLE...WITH AS MUCH AS 6 INCHES POSSIBLE NEAR THE MINNESOTA BORDER BEFORE THE SNOW ENDS THIS EVENING. SNOW IS EXPECTED TO BE HEAVY AT TIMES THROUGHOUT THE WARNING AREA...WITH SNOWFALL RATES OF ONE TO TWO INCHES PER HOUR COMMON LATER THIS AFTERNOON. THUNDER WILL ALSO ACCOMPANY HEAVY SLEET AND HEAVY FREEZING RAIN AT TIMES. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...SLEET ...AND ICE ARE OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IAZ023>028-033>039-044>050-270000- /O.CON.KDMX.WW.Y.0012.000000T0000Z-090227T0000Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...SAC CITY...ROCKWELL CITY... FORT DODGE...WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO... DENISON...CARROLL...JEFFERSON...BOONE...AMES...MARSHALLTOWN... TOLEDO 1111 AM CST THU FEB 26 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. A MIX OF FREEZING RAIN AND SLEET...ACCOMPANIED AT TIMES BY ISOLATED THUNDERSTORMS...WILL CONTINUE THROUGH MID AFTERNOON. PRECIPITATION WILL CHANGE OVER TO SNOW LATE ALONG THE HIGHWAY 3 CORRIDOR. A TENTH TO AS MUCH AS TWO TENTHS OF AN INCH OF ICE ACCUMULATION IS POSSIBLE. IN ADDITION TO THE ICE...AN INCH OF A SNOW AND SLEET MIXTURE IS ALSO POSSIBLE BY THE TIME THE PRECIPITATION TAPERS OFF BY THIS EVENING. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ KINNEY
000 WWUS43 KDMX 262008 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 208 PM CST THU FEB 26 2009 ...WINTRY MIX OF PRECIPITATION CONTINUES ACROSS NORTHEAST IOWA... IAZ023-024-033>036-044>047-262115- /O.CAN.KDMX.WW.Y.0012.000000T0000Z-090227T0000Z/ POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER-HAMILTON-CRAWFORD-CARROLL- GREENE-BOONE- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...DENISON...CARROLL... JEFFERSON...BOONE 208 PM CST THU FEB 26 2009 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE WINTER WEATHER ADVISORY. ONLY LIGHT ADDITIONAL PRECIPITATION IS EXPECTED THROUGH EARLY EVENING...MAINLY IN THE FORM OF SNOW. $$ IAZ004>007-015>017-270000- /O.CON.KDMX.WS.W.0004.000000T0000Z-090227T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 208 PM CST THU FEB 26 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. HEAVIER PRECIPITATION HAS MOVED OUT OF NORTHERN IOWA...BUT LIGHT SNOW MAY SWING THROUGH THE AREA DURING THE LATE AFTERNOON HOURS. ROADS ACROSS NORTHERN IOWA REMAIN PARTLY TO MOSTLY SNOW AND ICE COVERED...AND SLICK. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...SLEET ...AND ICE ARE OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ IAZ025>028-037>039-048>050-270000- /O.CON.KDMX.WW.Y.0012.000000T0000Z-090227T0000Z/ WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY-BLACK HAWK-STORY- MARSHALL-TAMA- INCLUDING THE CITIES OF...CLARION...HAMPTON...ALLISON...WAVERLY... ELDORA...GRUNDY CENTER...WATERLOO...AMES...MARSHALLTOWN...TOLEDO 208 PM CST THU FEB 26 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. RAIN AND SLEET SHOWERS WILL CONTINUE TO MOVE EAST OUT OF THE AREA THROUGH LATE AFTERNOON. SOME FREEZING RAIN IS ALSO POSSIBLE. SLICK ROAD CONDITIONS WILL PERSIST WHERE HEAVIER SLEET SHOWERS OCCUR. ROADS IN THE AREA ARE STILL PARTLY TO MOSTLY ICE COVERED. CONDITIONS SHOULD IMPROVE BY EARLY EVENING. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ KINNEY
000 WWUS43 KDMX 262125 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 325 PM CST THU FEB 26 2009 ...WINTER WEATHER THREAT HAS ENDED ACROSS NORTHERN IOWA... IAZ004>007-015>017-262230- /O.CAN.KDMX.WS.W.0004.000000T0000Z-090227T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 325 PM CST THU FEB 26 2009 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE WINTER STORM WARNING. SOME LIGHT SNOW MAY BRUSH NORTHERN IOWA THROUGH THE EVENING...BUT LITTLE OR NO ADDITIONAL ACCUMULATION IS EXPECTED. $$ IAZ025>028-037>039-048>050-262230- /O.CAN.KDMX.WW.Y.0012.000000T0000Z-090227T0000Z/ WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY-BLACK HAWK-STORY- MARSHALL-TAMA- INCLUDING THE CITIES OF...CLARION...HAMPTON...ALLISON...WAVERLY... ELDORA...GRUNDY CENTER...WATERLOO...AMES...MARSHALLTOWN...TOLEDO 325 PM CST THU FEB 26 2009 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE WINTER WEATHER ADVISORY. PRECIPITATION HAS EXITED THE AREA. THERE MAY BE SOME LINGERING LIGHT RAIN OR SNOW THROUGH THE EVENING...BUT NO ADDITIONAL ACCUMULATION IS EXPECTED. $$
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Des Moines, IA wrote its last area forecast discussion before this winter storm warning went out at Feb 25, 6:15 PM CST, 3 hours 10 minutes earlier.
Area forecast discussion, Feb 25, 6:15 PM CST, 3 hours 10 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DES MOINES IA 615 PM CST WED FEB 25 2009 .UPDATED FOR THE 00Z AVIATION DISCUSSION... .DISCUSSION... STRONG STORM SYSTEM TAKING SHAPE TONIGHT OVER THE PLAINS WILL BEGIN TO AFFECT CENTRAL IOWA MAINLY AFT 09Z. CLOUDS WILL BEGIN TO INCREASE THIS EVENING WITH LOWER STRATUS MOVING IN AFT 06Z. THE ONE CAVEAT INITIALLY IS A DRIER EASTERLY FLOW OVER CENTRAL IOWA THAT WILL HAMPER SATURATION DURING THE OVERNIGHT. BY 12Z HOWEVER THE WIND BECOMES MORE SOUTHERLY AS AN INVERTED TROUGH DEVELOPS TO THE SOUTH AND WEST. WE SATURATE FAIRLY QUICKLY BY THEN BUT THAT IS NEAR THE END OF THE FIRST PERIOD. OUR FAR WESTERN COUNTIES HOWEVER WILL SATURATE A COUPLE HOURS EARLIER SO BETWEEN 09Z AND 12Z I EXPECT PRECIP CHANCES TO INCREASE. SOUNDINGS INDICATE LIMITED MOISTURE AND VERY SHALLOW AT THAT BUT SOME INSTABILITY WITH MU CAPES 300-400 J/KG. ISOLATED THUNDER IS WORTH A MENTION GIVEN THE AMOUNT OF LIFT IN THE SOUTHWEST. TEMPS WILL BE TRICKY GIVEN THE AMOUNT OF COLD AIR COMING DOWN. FOR NOW I KEPT THE NORTH BELOW FREEZING AND SOUTH OF HIGHWAY 30 FLIRTING WITH FREEZING TO THE I-80 CORRIDOR. SOUTH OF I-80 TEMPS WILL BE ABOVE FREEZING. COMPLICATED WX STTN WITH SYS DVLP ON THU. IT WILL BE CLOSE ON THE RN/FZRN AREA AND HAVE MOST CONCERN REGARDING THE FZRN. THE AREA A FEW GUD ANALOG CASES, 3/17/84, 2/10/00 AND 3/8/03 FOR EXAMPLE, BUT THERE IS A FAIR SPREAD ON THEM AS WELL. CUR PSN OF THE WATCH AREA LKS REASONABLE AND WILL HOLD OFF ON UPGRADING ATTM AS THE CRITICAL THING WILL BE THE QPF AMT. MDLS ARE GETTING MORE CONSISTENT WITH QPF AMTS AND WILL NEED TO SEE JUST HOW MUCH FALLS IN AQ FORM. R/S LN WL BE PRETTY SHARP AND ALNG THE BRDR. WILL GO WITH CLOSE TO 4 INCHES ALONG THE MN LINE AND DONT FEEL THERE WILL BE A GREAT AMT OF FZRN IN THAT AREA...BUT A DIF STORY SOUTH. WILL SEE AT LEAST A TENTH OR TO SOUTH OF THE AREA FM W CNTRL TWD N CNTRL IA...BUT NOT A GREAT DEAL OF IP AND SN IN THOSE AREAS. FEEL WE ARE LOOKING MORE TWD A HI END ADVY FOR NOW. RAIN AND TSRA TO THE S WITH DECENT INSTABILITY SHWN BY THE SHOWALTER AND TQ INDICES. TEMPS WILL BE STDY OR FALLING THU AFTN WITH READINGS FALLING A BIT BLO NORMAL FOR MJUCH OF THE REST OF FCST PD. NEXT SYS ADVTZD TO MOVE THRU FRI NGT INTO ERY SAT. FEEL ECMWF A BIT TOO FAR SOUTHWEST AND OPTED FOR A COMPROMISE BETN THE GFS AND GEM SOLNS. NOT A BIG SYS WITH SNOW FALL IN THE 1-2 INCH RANGE EXPECTED. && .AVIATION...26/00Z TRICKY AVIATION FORECAST FOR THURSDAY...ESPECIALLY FOR THE NORTHERN 3 TAF SITES...WHERE AMOUNT OF COLD AIR AT THE SURFACE AND ALOFT WILL PLAY A BIG DIFFERENCE BETWEEN RAIN...FREEZING RAIN...OR SNOW. LOOKS LIKE KMCW HAS A GREATER CHANCE OF MIXING WITH SNOW INTO THE AFTERNOON HOURS...WITH KFOD AND KALO MORE IN THE RAIN CHANGING TO FREEZING RAIN SCENARIO. AS FOR KOTM AND KDSM...RAIN IS EXPECTED THROUGHOUT THE TAF PERIOD. HOWEVER INSTABILITY PRESENT...SO RUMBLES OF THUNDER A POSSIBILITY ESPECIALLY AT KOTM THROUGHOUT MUCH OF THE DAY. HAVE HIGHLIGHTED NOW WITH A CB MENTION AS TRYING TO NAIL DOWN ANY SPECIFIC TIMING NOT POSSIBLE RIGHT NOW. OTHERWISE CIGS WILL GENERALLY LOWER INTO THE IFR/LIFR RANGE THROUGHOUT THE DAY THURSDAY WITH EASTERLY TO SOUTHEASTERLY WINDS SHIFTING TO THE NORTH BY LATE IN THE DAY. && .DMX WATCHES/ADVISORIES/WARNINGS...WINTER STORM WATCH ALONG AND NORTH OF HIGHWAY 3 FOR THURSDAY. && SHORT TERM...FAB LONG TERM...MS FEB 09 AVIATION...MJA
Hazardous weather outlook, Feb 25, 3:38 PM CST, 5 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 338 PM CST WED FEB 25 2009 IAZ004>007-015>017-023>028-262145- EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER- 338 PM CST WED FEB 25 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...THIS AFTERNOON AND TONIGHT LIGHT FREEZING RAIN AND SLEET IS POSSIBLE AFTER 3 AM...MAINLY WEST OF INTERSTATE 35. LIGHT ICE ACCUMULATIONS ARE POSSIBLE BY 6 AM THURSDAY MORNING. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A WINTRY MIX OF PRECIPITATION IS EXPECTED ON THURSDAY. INITIALLY...A BAND OF FREEZING RAIN IS EXPECTED TO DEVELOP THEN GRADUALLY TRANSITION TO SLEET AND SNOW BY LATE MORNING AND INTO THE AFTERNOON HOURS. ICE ACCUMULATIONS OVER ONE QUARTER INCH ARE POSSIBLE. IN ADDITION...SEVERAL INCHES OF SNOW MAY FALL ESPECIALLY ALONG AND NORTHWEST OF A POCAHONTAS TO MASON CITY LINE BEFORE ENDING THURSDAY EVENING. A WINTER STORM WATCH IS IN EFFECT FOR THE AREA. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THOUGH SNOW AND ICE ACCUMULATION REPORTS ARE ALWAYS APPRECIATED. IAZ033>039-044>050-262145- SAC-CALHOUN-WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD- CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA- 338 PM CST WED FEB 25 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...THIS AFTERNOON AND TONIGHT LIGHT FREEZING RAIN IS POSSIBLE AFTER 3 AM WITH MINOR ICE ACCUMULATIONS POSSIBLE BY 6 AM THURSDAY MORNING. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A BAND OF FREEZING RAIN WITH SOME ICE ACCUMULATION...IS POSSIBLE EARLY IN THE MORNING BEFORE TEMPERATURES RISE ABOVE FREEZING AND THE PRECIPITATION TRANSITIONS TO RAIN. THE PRECIPITATION WILL TRANSITION BACK TO A WINTRY MIX FROM MID AFTERNOON TO EARLY EVENING THURSDAY WITH SOME ADDITIONAL ICE AND SNOW ACCUMULATIONS POSSIBLE. ISOLATED NON SEVERE THUNDERSTORMS ARE POSSIBLE DURING THE DAY MAINLY EAST OF INTERSTATE 35. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THOUGH SNOW AND ICE ACCUMULATION REPORTS ARE ALWAYS APPRECIATED. IAZ057>062-070>075-081>086-092>097-262145- AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON- WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO- TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- 338 PM CST WED FEB 25 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...THIS AFTERNOON AND TONIGHT ISOLATED NON SEVERE THUNDERSTORMS ARE POSSIBLE AFTER 3 AM MAINLY WEST OF INTERSTATE 35. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY SCATTERED THUNDERSTORMS ARE POSSIBLE ON THURSDAY. AN ISOLATED SEVERE STORM WITH NICKEL SIZED HAIL IS POSSIBLE SOUTHEAST OF A LAMONI TO OTTUMWA LINE. A TRANSITION TO A WINTRY MIX OF PRECIPITATION IS EXPECTED THURSDAY EVENING WITH MINOR SNOW OR ICE ACCUMULATIONS POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. FAB
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 25, 9:25 PM CST | Winter Weather Advisory | DMX | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 14 more | 18 hr |
| Feb 26, 11:22 AM CST | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Greene | 23 min |
| Feb 26, 11:42 AM CST | Severe Thunderstorm Warning | DMX | Adair, Cass | 33 min |
| Feb 26, 12:32 PM CST | Severe Thunderstorm Warning | DMX | Dallas, Jasper, Madison, Polk | 43 min |
| Feb 26, 1:21 PM CST | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Wapello | 39 min |
| Feb 26, 3:41 PM CST | Areal Flood Advisory | DMX | Wapello | 54 min |
Nearby
Winter Storm Warnings in Iowa, 2009Every winter storm warning in 2009
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.