Alert archive / Iowa / Winter Storm Warnings in 2011
Winter Storm Warning 2, NWS Des Moines, IA
NWS Des Moines, IA issued this winter storm warning at Feb 19, 2011, 4:02 AM CST for 8 counties in Iowa. It took effect at Feb 20, 2011, 12:00 AM CST. It was in force for 13 hr. 1 report 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 19, 2011, 4:02 AM CST (10:02 UTC)
- In effect from
- Feb 20, 2011, 12:00 AM CST
- Expired
- Feb 20, 2011, 12:34 PM CST
- In force
- 13 hr
- Issued by
- NWS Des Moines, IA
Counties Bremer County, IA, 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), 160 km from the middle of the area, began a volume at 10:05 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 20, 11:15 AM CST | FREEZING RAIN 0.25 | Garner, IA | REPORT FROM KIMT VIEWER |
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, 10.0 hours before the alert went out and 187 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
- 1221 m above ground
- 0-6 km bulk shear
- 85 kt
- 0-1 km storm-relative helicity
- -35 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
232 WWUS43 KDMX 191002 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 402 AM CST SAT FEB 19 2011 ...SIGNIFICANT ICE AND SNOW ACCUMULATION POSSIBLE ACROSS NORTHERN IOWA LATE TONIGHT THROUGH MONDAY MORNING... .A STRONG LOW PRESSURE IS FORECAST TO PUSH ACROSS THE ROCKIES TODAY AND MOVE ACROSS THE STATE DURING THE DAY SUNDAY. THE STORM SYSTEM WILL PULL OUT OF THE REGION BY MONDAY AFTERNOON. ACROSS NORTHERN IOWA...A WINTRY MIX OF FREEZING RAIN...SLEET AND SNOW IS POSSIBLE BEGINNING LATE TONIGHT AND CONTINUING THROUGHOUT THE DAY SUNDAY...BEFORE SWITCHING TO ALL SNOW BY SUNDAY NIGHT. IAZ006-007-016-017-191815- /O.UPG.KDMX.WS.A.0004.110220T0600Z-110221T1200Z/ /O.NEW.KDMX.WS.W.0002.110220T0600Z-110221T1200Z/ WINNEBAGO-WORTH-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...FOREST CITY...NORTHWOOD...GARNER... MASON CITY 402 AM CST SAT FEB 19 2011 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST MONDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER STORM WARNING FOR FREEZING RAIN AND SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...A WINTRY MIX OF FREEZING RAIN...SNOW AND SLEET IS EXPECTED TO DEVELOP ACROSS THE AREA LATE TONIGHT AND CONTINUE THROUGH MUCH OF THE DAY SUNDAY. THE PREDOMINANT TYPE OF PRECIPITATION WILL BE FREEZING RAIN OVERNIGHT TONIGHT AND THROUGH MUCH OF THE DAY SUNDAY. HOWEVER...THERE IS LIKELY TO BE PERIODS WHEN THE PRECIPITATION WILL SWITCH BACK AND FORTH FROM A WINTRY MIX TO ALL RAIN DURING THE DAY SUNDAY BEFORE THE PRECIPITATION SWITCHES TO ALL SNOW BY AROUND SUNSET SUNDAY EVENING. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS ARE EXPECTED TO RANGE FROM A QUARTER OF INCH TO AROUND A HALF INCH AND SNOW AMOUNTS WILL LIKELY RANGE FROM 1 TO 4 INCHES. * IMPACTS...THE EXPECTED FREEZING RAIN WILL LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. IN ADDITION...ICE WILL LIKELY COVER TREES AND POWER LINES LEADING TO THE POTENTIAL FOR POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ PODRAZIK IAZ004-005-015-191815- /O.CON.KDMX.WS.A.0004.110220T0600Z-110221T1200Z/ EMMET-KOSSUTH-PALO ALTO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...EMMETSBURG 402 AM CST SAT FEB 19 2011 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH LATE SUNDAY NIGHT... A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH LATE SUNDAY NIGHT. * TIMING...AREAS OF RAIN OR FREEZING RAIN IS FORECAST TO DEVELOP TONIGHT. AS TEMPERATURES TEETER AROUND THE FREEZING MARK...PRECIPITATION TYPE WILL BE A WINTRY MIX OF SLEET...FREEZING RAIN...AND SNOW AT TIMES PAST MIDNIGHT TONIGHT INTO EARLY SUNDAY MORNING. FREEZING RAIN IS LIKELY TO BE THE DOMINANT PRECIPITATION TYPE OVERNIGHT TONIGHT AND THROUGHOUT THE DAY TOMORROW. HOWEVER...THERE TEMPERATURES LOOK TO WARM ABOVE FREEZING DURING AN EXTENDED PERIOD ON SUNDAY LEADING TO ALL RAIN. WITH COLDER TEMPERATURES EXPECTED TO FILTER INTO THE STATE BY SUNDAY NIGHT...SNOW IS LIKELY TO DEVELOP SUNDAY EVENING. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATION FROM THE STORM IS EXPECTED TO BE BETWEEN TWO TENTHS TO NEAR A HALF INCH BY SUNSET SUNDAY. SNOW ACCUMULATION IS EXPECTED TO RANGE FROM 1 TO 3 INCHES BY MONDAY MORNING. * IMPACTS...THE EXPECTED FREEZING RAIN WILL LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. IN ADDITION...ICE WILL LIKELY COVER TREES AND POWER LINES LEADING TO THE POTENTIAL FOR POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$ PODRAZIK
7 follow-up statements
473 WWUS43 KDMX 191702 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1102 AM CST SAT FEB 19 2011 ...SIGNIFICANT ICE AND SNOW ACCUMULATION POSSIBLE ACROSS NORTHERN IOWA LATE TONIGHT THROUGH MONDAY MORNING... .A STRONG LOW PRESSURE IS FORECAST TO PUSH ACROSS THE ROCKIES TODAY AND MOVE ACROSS THE STATE DURING THE DAY SUNDAY. THE STORM SYSTEM WILL PULL OUT OF THE REGION BY MONDAY AFTERNOON. ACROSS NORTHERN IOWA...A WINTRY MIX OF FREEZING RAIN...SLEET AND SNOW IS POSSIBLE BEGINNING LATE TONIGHT AND CONTINUING THROUGHOUT THE DAY SUNDAY...BEFORE SWITCHING TO ALL SNOW BY SUNDAY NIGHT. IAZ006-007-016-017-200115- /O.CON.KDMX.WS.W.0002.110220T0600Z-110221T1200Z/ WINNEBAGO-WORTH-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...FOREST CITY...NORTHWOOD...GARNER... MASON CITY 1102 AM CST SAT FEB 19 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST MONDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST MONDAY. * TIMING...A WINTRY MIX OF FREEZING RAIN...SNOW AND SLEET IS EXPECTED TO DEVELOP ACROSS THE AREA LATE TONIGHT AND CONTINUE THROUGH MUCH OF THE DAY SUNDAY. THE PREDOMINANT TYPE OF PRECIPITATION WILL BE FREEZING RAIN OVERNIGHT TONIGHT AND THROUGH MUCH OF THE DAY SUNDAY. HOWEVER...THERE IS LIKELY TO BE PERIODS WHEN THE PRECIPITATION WILL SWITCH BACK AND FORTH FROM A WINTRY MIX TO ALL RAIN DURING THE DAY SUNDAY BEFORE THE PRECIPITATION SWITCHES TO ALL SNOW BY AROUND SUNSET SUNDAY EVENING. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS ARE EXPECTED TO RANGE FROM A QUARTER OF INCH TO AROUND A HALF INCH AND SNOW AMOUNTS WILL LIKELY RANGE FROM 1 TO 4 INCHES. * IMPACTS...THE EXPECTED FREEZING RAIN WILL LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. IN ADDITION...ICE WILL LIKELY COVER TREES AND POWER LINES LEADING TO THE POTENTIAL FOR POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IAZ004-005-015-200115- /O.CON.KDMX.WS.A.0004.110220T0600Z-110221T1200Z/ EMMET-KOSSUTH-PALO ALTO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...EMMETSBURG 1102 AM CST SAT FEB 19 2011 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH LATE SUNDAY NIGHT... A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH LATE SUNDAY NIGHT. * TIMING...AREAS OF RAIN OR FREEZING RAIN IS FORECAST TO DEVELOP TONIGHT. AS TEMPERATURES TEETER AROUND THE FREEZING MARK... PRECIPITATION TYPE WILL BE A WINTRY MIX OF SLEET...FREEZING RAIN...AND SNOW AT TIMES PAST MIDNIGHT TONIGHT INTO EARLY SUNDAY MORNING. FREEZING RAIN IS LIKELY TO BE THE DOMINANT PRECIPITATION TYPE OVERNIGHT TONIGHT AND THROUGHOUT THE DAY TOMORROW. HOWEVER...THERE TEMPERATURES LOOK TO WARM ABOVE FREEZING DURING AN EXTENDED PERIOD ON SUNDAY LEADING TO ALL RAIN. WITH COLDER TEMPERATURES EXPECTED TO FILTER INTO THE STATE BY SUNDAY NIGHT...SNOW IS LIKELY TO DEVELOP SUNDAY EVENING. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATION FROM THE STORM IS EXPECTED TO BE BETWEEN TWO TENTHS TO NEAR A HALF INCH BY SUNSET SUNDAY. SNOW ACCUMULATION IS EXPECTED TO RANGE FROM 1 TO 3 INCHES BY MONDAY MORNING. * IMPACTS...THE EXPECTED FREEZING RAIN WILL LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. IN ADDITION...ICE WILL LIKELY COVER TREES AND POWER LINES LEADING TO THE POTENTIAL FOR POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$ SMALL
667 WWUS43 KDMX 192220 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 420 PM CST SAT FEB 19 2011 ...SIGNIFICANT ICE AND SNOW ACCUMULATION POSSIBLE ACROSS NORTHERN IOWA LATE TONIGHT THROUGH MONDAY MORNING... .A STRONG LOW PRESSURE AREA IS FORECAST TO PUSH ACROSS THE ROCKIES TODAY AND MOVE ACROSS THE STATE DURING THE DAY SUNDAY. THE STORM SYSTEM WILL EXIT THE REGION BY MONDAY AFTERNOON. ACROSS NORTHERN IOWA...A WINTRY MIX OF FREEZING RAIN...SLEET AND SNOW IS POSSIBLE BEGINNING LATE TONIGHT AND CONTINUING THROUGHOUT THE DAY SUNDAY...BEFORE SWITCHING TO ALL SNOW BY SUNDAY NIGHT. IAZ004-005-015-200400- /O.UPG.KDMX.WS.A.0004.110220T0600Z-110221T1200Z/ /O.EXA.KDMX.WS.W.0002.110220T0600Z-110221T1200Z/ EMMET-KOSSUTH-PALO ALTO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...EMMETSBURG 420 PM CST SAT FEB 19 2011 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST MONDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER STORM WARNING FOR FREEZING RAIN AND SLEET...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...A WINTRY MIX OF PREDOMINATELY FREEZING RAIN...BUT ALSO SOME SLEET...IS EXPECTED TO DEVELOP ACROSS THE AREA LATE TONIGHT AND CONTINUE THROUGH MUCH OF THE DAY SUNDAY. A COLD RAIN MAY ALSO MIX IN WITH THE PRECIPITATION AT TIMES SUNDAY. THE PRECIPITATION IS THEN EXPECTED TO SWITCH BACK TO ALL SNOW SUNDAY NIGHT BEFORE ENDING LATER MONDAY. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS ARE EXPECTED TO RANGE FROM A QUARTER TO HALF INCH...WITH SNOW AND SLEET AMOUNTS TO AROUND AN INCH BY LATE MONDAY. * IMPACTS...THE EXPECTED FREEZING RAIN WILL LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. IN ADDITION...ICE MAY COVER TREES AND POWER LINES LEADING TO THE POTENTIAL FOR POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SLEET OR ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IAZ028-200400- /O.EXA.KDMX.WS.W.0002.110220T0600Z-110221T1200Z/ BREMER- INCLUDING THE CITY OF...WAVERLY 420 PM CST SAT FEB 19 2011 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST MONDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER STORM WARNING FOR FREEZING RAIN AND SLEET...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST MONDAY. * TIMING...A WINTRY MIX OF PREDOMINATELY FREEZING RAIN...BUT ALSO SOME SLEET...IS EXPECTED TO DEVELOP ACROSS THE AREA LATE TONIGHT AND CONTINUE THROUGH MUCH OF THE DAY SUNDAY. A COLD RAIN MAY ALSO MIX IN WITH THE PRECIPITATION AT TIMES SUNDAY. THE PRECIPITATION IS THEN EXPECTED TO SWITCH BACK TO ALL SNOW SUNDAY NIGHT BEFORE ENDING LATER MONDAY. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS ARE EXPECTED TO RANGE FROM A QUARTER TO HALF INCH...WITH SNOW AND SLEET AMOUNTS TO AROUND AN INCH BY LATE MONDAY. * IMPACTS...THE EXPECTED FREEZING RAIN WILL LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. IN ADDITION...ICE MAY COVER TREES AND POWER LINES LEADING TO THE POTENTIAL FOR POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SLEET OR ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IAZ006-007-016-017-200400- /O.CON.KDMX.WS.W.0002.110220T0600Z-110221T1200Z/ WINNEBAGO-WORTH-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...FOREST CITY...NORTHWOOD...GARNER... MASON CITY 420 PM CST SAT FEB 19 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST MONDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST MONDAY. * TIMING...A WINTRY MIX OF PREDOMINATELY FREEZING RAIN...BUT ALSO SOME SLEET...IS EXPECTED TO DEVELOP ACROSS THE AREA LATE TONIGHT AND CONTINUE THROUGH MUCH OF THE DAY SUNDAY. A COLD RAIN MAY ALSO MIX IN WITH THE PRECIPITATION AT TIMES SUNDAY. THE PRECIPITATION IS THEN EXPECTED TO SWITCH BACK TO ALL SNOW SUNDAY NIGHT BEFORE ENDING LATER MONDAY. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS ARE EXPECTED TO RANGE FROM A QUARTER TO HALF INCH...WITH SNOW AND SLEET AMOUNTS TO AROUND AN INCH BY LATE MONDAY. * IMPACTS...THE EXPECTED FREEZING RAIN WILL LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. IN ADDITION...ICE MAY COVER TREES AND POWER LINES LEADING TO THE POTENTIAL FOR POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SLEET OR ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IAZ023>027-038-039-200400- /O.NEW.KDMX.WW.Y.0007.110220T0600Z-110220T1500Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-GRUNDY-BLACK HAWK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...GRUNDY CENTER...WATERLOO 420 PM CST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST SUNDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER WEATHER ADVISORY FOR FREEZING RAIN AND SLEET...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST SUNDAY. * TIMING...A WINTRY MIX OF PREDOMINATELY FREEZING RAIN...BUT ALSO SOME SLEET...IS EXPECTED TO DEVELOP ACROSS THE AREA LATE TONIGHT AND CONTINUE THROUGH EARLY SUNDAY MORNING. ALL RAIN IS THEN ANTICIPATED THROUGH MUCH OF THE DAY SUNDAY BEFORE SWITCHING BACK TO ALL SNOW SUNDAY NIGHT BEFORE ENDING LATER MONDAY. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS UP TO A TENTH OF AN INCH ARE EXPECTED WITH ONLY A FEW TENTHS OF SNOW BY LATER MONDAY. * IMPACTS...THE EXPECTED FREEZING RAIN MAY LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SLEET OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING. && $$ SMALL
499 WWUS43 KDMX 200309 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 909 PM CST SAT FEB 19 2011 ...SIGNIFICANT ICE AND SNOW ACCUMULATION POSSIBLE ACROSS NORTHERN IOWA LATE TONIGHT THROUGH MONDAY MORNING... .A STRONG LOW PRESSURE AREA IS FORECAST TO PUSH ACROSS THE ROCKIES TODAY AND MOVE ACROSS THE STATE DURING THE DAY SUNDAY. THE STORM SYSTEM WILL EXIT THE REGION BY MONDAY AFTERNOON. ACROSS NORTHERN IOWA...A WINTRY MIX OF FREEZING RAIN...SLEET AND SNOW IS POSSIBLE BEGINNING LATE TONIGHT AND CONTINUING THROUGHOUT THE DAY SUNDAY...BEFORE SWITCHING TO ALL SNOW BY SUNDAY NIGHT. IAZ004>007-015>017-028-201115- /O.CON.KDMX.WS.W.0002.110220T0600Z-110221T1200Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- BREMER- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...WAVERLY 909 PM CST SAT FEB 19 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST MONDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST MONDAY. * TIMING...A WINTRY MIX OF PREDOMINATELY FREEZING RAIN...BUT ALSO SOME SLEET...IS EXPECTED TO DEVELOP ACROSS THE AREA AROUND MIDNIGHT AND CONTINUE THROUGH MUCH OF THE DAY SUNDAY. A COLD RAIN MAY ALSO MIX IN WITH THE PRECIPITATION AT TIMES SUNDAY. THE PRECIPITATION IS THEN EXPECTED TO SWITCH BACK TO ALL SNOW SUNDAY NIGHT BEFORE ENDING LATER MONDAY. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS ARE EXPECTED TO RANGE FROM A QUARTER TO HALF INCH...WITH SNOW AND SLEET AMOUNTS TO AROUND AN INCH BY LATE MONDAY. * IMPACTS...THE EXPECTED FREEZING RAIN WILL LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. IN ADDITION...ICE MAY COVER TREES AND POWER LINES LEADING TO THE POTENTIAL FOR POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SLEET OR ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IAZ023>027-038-039-201115- /O.CON.KDMX.WW.Y.0007.110220T0600Z-110220T1500Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-GRUNDY-BLACK HAWK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...GRUNDY CENTER...WATERLOO 909 PM CST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST SUNDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST SUNDAY. * TIMING...A WINTRY MIX OF PREDOMINATELY FREEZING RAIN...BUT ALSO SOME SLEET...IS EXPECTED TO DEVELOP ACROSS THE AREA LATE TONIGHT AND CONTINUE THROUGH EARLY SUNDAY MORNING. ALL RAIN IS THEN ANTICIPATED THROUGH MUCH OF THE DAY SUNDAY BEFORE SWITCHING BACK TO ALL SNOW SUNDAY NIGHT BEFORE ENDING LATER MONDAY. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS UP TO A TENTH OF AN INCH ARE EXPECTED WITH ONLY A FEW TENTHS OF SNOW BY LATER MONDAY. * IMPACTS...THE EXPECTED FREEZING RAIN MAY LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SLEET OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING. && $$ REV
327 WWUS43 KDMX 201002 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 402 AM CST SUN FEB 20 2011 ...SIGNIFICANT ICE AND SNOW ACCUMULATION POSSIBLE ACROSS FAR NORTHERN IOWA THROUGH MONDAY MORNING... .A STRONG LOW PRESSURE WILL LIFT NORTHEAST OUT OF COLORADO TODAY AND INTO IOWA BY THIS AFTERNOON. THE SYSTEM WILL BRING A WINTRY MIX OF FREEZING RAIN...SLEET AND SNOW TO NORTHERN IOWA DURING THE PERIOD. IAZ028-201500- /O.CAN.KDMX.WS.W.0002.000000T0000Z-110221T1200Z/ /O.EXA.KDMX.WW.Y.0007.000000T0000Z-110220T1500Z/ BREMER- INCLUDING THE CITY OF...WAVERLY 402 AM CST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER WEATHER ADVISORY FOR FREEZING RAIN...WHICH IS IN EFFECT UNTIL 9 AM CST THIS MORNING. THE WINTER STORM WARNING HAS BEEN CANCELLED. * TIMING...A PERIOD OF FREEZING RAIN IS POSSIBLE EARLY THROUGH MID MORNING. TEMPERATURES ARE APPROACHING FREEZING AND WILL CONTINUE TO RISE WITH ANY FREEZING RAIN CHANGING TO RAIN LATER THIS MORNING. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS OF A FEW HUNDREDTHS OF AN INCH WITH LOCALIZED AMOUNTS UP TO A TENTH OF AN INCH ALONG THE NORTHEAST PERIPHERY OF THE COUNTY. * IMPACTS...FREEZING RAIN MAY LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SLEET OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING. && $$ IAZ038-039-201115- /O.CAN.KDMX.WW.Y.0007.000000T0000Z-110220T1500Z/ GRUNDY-BLACK HAWK- INCLUDING THE CITIES OF...GRUNDY CENTER...WATERLOO 402 AM CST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE WINTER WEATHER ADVISORY. TEMPERATURES WILL CONTINUE TO RISE ABOVE FREEZING TODAY THEREFORE THE THREAT FOR FREEZING RAIN HAS DIMINISHED. $$ IAZ004>007-015>017-201815- /O.CON.KDMX.WS.W.0002.000000T0000Z-110221T1200Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 402 AM CST SUN FEB 20 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY. * TIMING...A MIX OF RAIN...FREEZING RAIN AND SLEET ARE EXPECTED TO DEVELOP TODAY THEN CHANGE TO SNOW OVERNIGHT. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS UP TO ONE QUARTER INCH ARE EXPECTED ALONG WITH SNOW AND SLEET AMOUNTS TO AROUND AN INCH BY LATE MONDAY. * IMPACTS...THE EXPECTED FREEZING RAIN WILL LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. IN ADDITION...ICE MAY COVER TREES AND POWER LINES LEADING TO THE POTENTIAL FOR POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SLEET OR ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IAZ023>027-201500- /O.CON.KDMX.WW.Y.0007.000000T0000Z-110220T1500Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON 402 AM CST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING. * TIMING...A PERIOD OF FREEZING RAIN IS POSSIBLE EARLY THROUGH MID MORNING. TEMPERATURES ARE APPROACHING FREEZING AND WILL CONTINUE TO RISE WITH ANY FREEZING RAIN CHANGING TO RAIN. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS OF A FEW HUNDREDTHS OF AN INCH WITH LOCALIZED AMOUNTS UP TO A TENTH OF AN INCH ALONG THE NORTHERN PERIPHERY OF THE ADVISORY. * IMPACTS...FREEZING RAIN MAY LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SLEET OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING. && $$
310 WWUS43 KDMX 201302 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 702 AM CST SUN FEB 20 2011 ...SIGNIFICANT ICE AND SNOW ACCUMULATION POSSIBLE ACROSS FAR NORTHERN IOWA THROUGH MONDAY MORNING... .A STRONG LOW PRESSURE WILL LIFT NORTHEAST OUT OF SOUTHEAST NEBRASKA TODAY AND INTO IOWA BY THIS AFTERNOON. THE SYSTEM WILL BRING A WINTRY MIX OF FREEZING RAIN...SLEET AND SNOW TO NORTHERN IOWA THROUGH TONIGHT. IAZ004>007-015>017-202115- /O.CON.KDMX.WS.W.0002.000000T0000Z-110221T1200Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 702 AM CST SUN FEB 20 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY. * SHORT TERM TRENDS...A MIX OF RAIN...FREEZING RAIN AND SLEET WILL CONTINUE ACROSS THE AREA THIS MORNING. A FEW EMBEDDED THUNDERSTORMS WILL PASS THROUGH THE AREA AS WELL. TEMPERATURES ARE EXPECTED TO RISE ABOVE FREEZING FOR A PERIOD OVER SOUTHERN PORTIONS OF THE WARNED AREA BY LATE THIS MORNING. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS UP TO ONE QUARTER INCH ARE EXPECTED TODAY ALONG WITH SNOW AND SLEET AMOUNTS TO AROUND AN INCH BY MONDAY MORNING. * IMPACTS...THE EXPECTED FREEZING RAIN WILL LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. IN ADDITION...ICE MAY COVER TREES AND POWER LINES LEADING TO THE POTENTIAL FOR POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SLEET OR ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ IAZ023>028-201500- /O.CON.KDMX.WW.Y.0007.000000T0000Z-110220T1500Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY 702 AM CST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING. * SHORT TERM TRENDS...A PERIOD OF FREEZING RAIN WILL OCCUR THROUGH MID MORNING. TEMPERATURES ARE EXPECTED TO RISE ABOVE FREEZING BY MID MORNING. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS OF A FEW HUNDREDTHS OF AN INCH WITH LOCALIZED AMOUNTS UP TO A TENTH OF AN INCH ALONG THE NORTHERN PERIPHERY OF THE ADVISORY. * IMPACTS...FREEZING RAIN MAY LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SLEET OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING. && $$
780 WWUS43 KDMX 201514 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 914 AM CST SUN FEB 20 2011 ...SIGNIFICANT ICE AND SNOW ACCUMULATION POSSIBLE ACROSS FAR NORTHERN IOWA THROUGH MONDAY MORNING... .A STRONG LOW PRESSURE AREA WILL LIFT NORTHEAST OUT OF THE PLAINS TODAY...REACHING SOUTH CENTRAL IOWA BY LATE THIS AFTERNOON. THE SYSTEM WILL BRING A WINTRY MIX OF FREEZING RAIN...SLEET AND SNOW TO NORTHERN IOWA THROUGH TONIGHT. IAZ023>028-201615- /O.EXP.KDMX.WW.Y.0007.000000T0000Z-110220T1500Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY 914 AM CST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY HAS EXPIRED... THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. PERIODS OF RAIN OR SNOW...EVEN WITH THUNDER AT TIMES...ARE ANTICIPATED FOR THE REMAINDER OF THE MORNING HOURS. THE PRECIPITATION SHOULD DIMINISH TOWARD NOONTIME WITH AIR AND ROAD SURFACE TEMPERATURES GRADUALLY WARMING THROUGH THAT TIME. $$ IAZ004>007-015>017-202315- /O.CON.KDMX.WS.W.0002.000000T0000Z-110221T1200Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 914 AM CST SUN FEB 20 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY. * SHORT TERM TRENDS...A MIX OF RAIN...FREEZING RAIN...SLEET AND SNOW WILL CONTINUE ACROSS THE AREA THIS MORNING. A FEW EMBEDDED THUNDERSTORMS ARE POSSIBLE AS WELL. TEMPERATURES SHOULD HOVER NEAR THE FREEZING MARK LEADING TO CONTINUE PROBLEMS WITH ICE AND SNOW ACCUMULATIONS. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ICE ACCUMULATIONS UP TO ONE QUARTER INCH ARE EXPECTED TODAY ALONG WITH SNOW AND SLEET AMOUNTS TO AROUND AN INCH BY MONDAY MORNING. * IMPACTS...THE EXPECTED FREEZING RAIN WILL LEAD TO ICE COVERED ROADS MAKING TRAVELING VERY HAZARDOUS. IN ADDITION...ICE MAY COVER TREES AND POWER LINES LEADING TO THE POTENTIAL FOR POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SLEET OR ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ SMALL
379 WWUS43 KDMX 201834 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1234 PM CST SUN FEB 20 2011 .LOW PRESSURE WILL TRACK FROM SOUTHEAST NEBRASKA INTO CENTRAL IOWA BY THIS EVENING. ALTHOUGH INTERMITTENT DRIZZLE OR FREEZING DRIZZLE MAY STILL OCCUR...THE POTENTIAL FOR ANY ADDITIONAL SIGNIFICANT ICING HAS DIMINISHED. THIS HAS PROMPTED THE WINTER STORM WARNING BEING REPLACED BY A WINTER WEATHER ADVISORY. IAZ004>007-015>017-202300- /O.CAN.KDMX.WS.W.0002.000000T0000Z-110221T1200Z/ /O.NEW.KDMX.WW.Y.0008.110220T1834Z-110221T1200Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY 1234 PM CST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST MONDAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER WEATHER ADVISORY FOR LIGHT FREEZING RAIN OR FREEZING DRIZZLE...WHICH IS IN EFFECT UNTIL 6 AM CST MONDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. * SHORT TERM TRENDS...INTERMITTENT LIGHT RAIN OR LIGHT FREEZING RAIN WILL GRADUALLY TRANSITION TO OCCASIONAL FREEZING DRIZZLE BY THIS EVENING AS TEMPERATURES BEGIN COOLING AGAIN. THE FREEZING DRIZZLE MAY LAST OFF AND ON INTO THE NIGHTTIME HOURS. * STORM TOTAL ICE/SNOW ACCUMULATIONS...ALTHOUGH ADDITIONAL MINOR ICING MAY CONTINUE INTO TONIGHT...SIGNIFICANT ICE ACCUMULATIONS REACHING A QUARTER OF AN INCH ARE NO LONGER ANTICIPATED. * IMPACTS...ROADS WERE PARTLY TO MOSTLY COVERED IN SNOW AND ICE THIS AFTERNOON AND THEY WILL REMAIN SLICK AND ICY IN SPOTS THROUGH DAYBREAK MONDAY DUE TO ADDITIONAL ACCUMULATIONS OF LIGHT FREEZING RAIN OR FREEZING DRIZZLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. IN THIS INSTANCE...LIGHT FREEZING RAIN AND FREEZING DRIZZLE ARE THE PRIMARY THREATS. BE PREPARED FOR SLIPPERY ROADS...AND USE CAUTION WHILE DRIVING. && $$ SMALL
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 7:54 PM CST | River Flood Warning | DMX | Humboldt, Kossuth | 8 days |
| Feb 19, 3:43 AM CST | Flash Flood Warning | DMX | Webster | 6 hr |
| Feb 19, 9:25 AM CST | River Flood Warning | DMX | Webster | 32 hr |
| Feb 19, 4:20 PM CST | Winter Weather Advisory | DMX | Black Hawk, Bremer, Butler, Franklin, Grundy, Humboldt and 2 more | 17 hr |
Nearby
Winter Storm Warnings in Iowa, 2011Every winter storm 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.