Alert archive / Iowa / Winter Storm Watches in 2012
Winter Storm Watch 1, NWS Des Moines, IA
NWS Des Moines, IA issued this winter storm watch at Feb 2, 2012, 4:34 AM CST for 25 counties in Iowa. It took effect at Feb 3, 2012, 9:00 PM CST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 2, 2012, 4:34 AM CST (10:34 UTC)
- In effect from
- Feb 3, 2012, 9:00 PM CST
- Expired
- Feb 3, 2012, 3:36 PM CST
- In force
- Issued by
- NWS Des Moines, IA
All 25 counties
Adair County, IA, Adams County, IA, Audubon County, IA, Boone County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Crawford County, IA, Dallas County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hardin County, IA, Humboldt County, IA, Madison County, IA, Marshall County, IA, Pocahontas County, IA, Polk County, IA, Ringgold County, IA, Sac County, IA, Story County, IA, Taylor County, IA, Union County, IA, Webster County, IA
The radar
The Des Moines radar (KDMX), 45 km from the middle of the area, began a volume at 10:36 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, 10.6 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
- 2947 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
286 WWUS43 KDMX 021034 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 434 AM CST THU FEB 2 2012 ...HEAVY SNOW POSSIBLE ACROSS CENTRAL TO WESTERN IOWA LATE FRIDAY NIGHT INTO SATURDAY... .A STRONG LOW PRESSURE SYSTEM WILL TRACK ACROSS KANSAS AND INTO CENTRAL MISSOURI THROUGHOUT THE DAY FRIDAY AND INTO SATURDAY. RAIN WILL BEGIN OVER THE AREA BY FRIDAY AFTERNOON BEFORE COLDER TEMPERATURES BEGIN TO FILTER INTO THE STATE FRIDAY NIGHT. A RAIN AND SNOW MIX IS FORECAST FRIDAY EVENING BEFORE SWITCHING OVER TO ALL SNOW DURING THE OVERNIGHT HOURS INTO SATURDAY MORNING. MODERATE TO LOCALLY HEAVY SNOW IS POSSIBLE BY SATURDAY MORNING. SNOW WILL BEGIN TO TAPER OFF LATE SATURDAY NIGHT BUT GUSTY NORTHEAST WINDS ARE FORECAST TO CONTINUE INTO SUNDAY MORNING. IAZ023-024-033>038-044>049-057>060-070>072-081-082-021845- /O.NEW.KDMX.WS.A.0001.120204T0300Z-120205T1200Z/ POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER-HAMILTON-HARDIN-GRUNDY- CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-AUDUBON-GUTHRIE- DALLAS-POLK-CASS-ADAIR-MADISON-ADAMS-UNION- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...DENISON...CARROLL...JEFFERSON...BOONE...AMES... MARSHALLTOWN...AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES... ATLANTIC...GREENFIELD...WINTERSET...CORNING...CRESTON 434 AM CST THU FEB 2 2012 ...WINTER STORM WATCH IN EFFECT FROM FRIDAY EVENING THROUGH LATE SATURDAY NIGHT... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM FRIDAY EVENING THROUGH LATE SATURDAY NIGHT. * TIMING...A MIX OF RAIN AND SNOW WILL DEVELOP OVER THE AREA FRIDAY EVENING BEFORE SWITCHING OVER TO ALL SNOW PAST MIDNIGHT INTO THE EARLY MORNING HOURS SATURDAY. THE HEAVIEST SNOWFALL ACCUMULATIONS ARE LIKELY TO OCCUR SATURDAY MORNING THROUGH EARLY SATURDAY AFTERNOON...BEFORE THE SNOW BEGINS TO DIMINISH SATURDAY EVENING. * STORM TOTAL SNOW...SNOWFALL AMOUNTS FROM 4 TO 7 INCHES ARE ANTICIPATED ACROSS THE WATCH AREA BY SATURDAY EVENING. * WINDS/VISIBILITY...NORTHEAST WINDS AT 20 TO 30 MPH WITH POSSIBLY HIGHER GUSTS WILL CAUSE SIGNIFICANT VISIBILITY RESTRICTIONS AND DRIFTING OF SNOW ON SATURDAY AND SATURDAY NIGHT. 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
8 follow-up statements
780 WWUS43 KDMX 021600 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1000 AM CST THU FEB 2 2012 ...HEAVY SNOW POSSIBLE ACROSS CENTRAL TO WESTERN IOWA LATE FRIDAY NIGHT INTO SATURDAY... .A STRONG LOW PRESSURE SYSTEM WILL TRACK ACROSS KANSAS AND INTO CENTRAL MISSOURI THROUGHOUT THE DAY FRIDAY AND INTO SATURDAY. RAIN WILL BEGIN OVER THE AREA BY FRIDAY AFTERNOON BEFORE COLDER TEMPERATURES BEGIN TO FILTER INTO THE STATE FRIDAY NIGHT. A RAIN AND SNOW MIX IS FORECAST FRIDAY EVENING BEFORE SWITCHING OVER TO ALL SNOW DURING THE OVERNIGHT HOURS INTO SATURDAY MORNING. MODERATE TO LOCALLY HEAVY SNOW IS POSSIBLE BY SATURDAY MORNING. SNOW WILL BEGIN TO TAPER OFF LATE SATURDAY NIGHT BUT GUSTY NORTHEAST WINDS ARE FORECAST TO CONTINUE INTO SUNDAY MORNING. IAZ023-024-033>038-044>049-057>060-070>072-081-082-030000- /O.CON.KDMX.WS.A.0001.120204T0300Z-120205T1200Z/ POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER-HAMILTON-HARDIN-GRUNDY- CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-AUDUBON-GUTHRIE- DALLAS-POLK-CASS-ADAIR-MADISON-ADAMS-UNION- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...DENISON...CARROLL...JEFFERSON...BOONE...AMES... MARSHALLTOWN...AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES... ATLANTIC...GREENFIELD...WINTERSET...CORNING...CRESTON 1000 AM CST THU FEB 2 2012 ...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH LATE SATURDAY NIGHT... * TIMING...A MIX OF RAIN AND SNOW WILL DEVELOP OVER THE AREA FRIDAY EVENING BEFORE SWITCHING OVER TO ALL SNOW PAST MIDNIGHT INTO THE EARLY MORNING HOURS SATURDAY. THE HEAVIEST SNOWFALL ACCUMULATIONS ARE LIKELY TO OCCUR SATURDAY MORNING THROUGH EARLY SATURDAY AFTERNOON...BEFORE THE SNOW BEGINS TO DIMINISH SATURDAY EVENING. * STORM TOTAL SNOW...SNOWFALL AMOUNTS FROM 4 TO 7 INCHES ARE ANTICIPATED ACROSS THE WATCH AREA BY SATURDAY EVENING. * WINDS/VISIBILITY...NORTHEAST WINDS AT 20 TO 30 MPH WITH POSSIBLY HIGHER GUSTS WILL CAUSE SIGNIFICANT VISIBILITY RESTRICTIONS AND DRIFTING OF SNOW ON SATURDAY AND SATURDAY NIGHT. 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. && $$ FAB
727 WWUS43 KDMX 021725 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1125 AM CST THU FEB 2 2012 ...HEAVY SNOW POSSIBLE ACROSS SOUTHWEST AND PART OF CENTRAL IOWA LATE FRIDAY NIGHT INTO SATURDAY... .A STRONG LOW PRESSURE SYSTEM WILL TRACK ACROSS KANSAS AND INTO CENTRAL MISSOURI THROUGHOUT THE DAY FRIDAY AND INTO SATURDAY. RAIN WILL BEGIN OVER THE AREA BY FRIDAY AFTERNOON BEFORE COLDER TEMPERATURES BEGIN TO FILTER INTO THE STATE FRIDAY NIGHT. A RAIN AND SNOW MIX IS FORECAST FRIDAY EVENING BEFORE SWITCHING OVER TO ALL SNOW DURING THE OVERNIGHT HOURS INTO SATURDAY MORNING. MODERATE TO LOCALLY HEAVY SNOW IS POSSIBLE BY SATURDAY MORNING. SNOW WILL BEGIN TO TAPER OFF LATE SATURDAY NIGHT BUT GUSTY NORTHEAST WINDS ARE FORECAST TO CONTINUE INTO SUNDAY MORNING. IAZ023-024-033>038-048-049-021830- /O.CAN.KDMX.WS.A.0001.120204T0300Z-120205T1200Z/ POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER-HAMILTON-HARDIN-GRUNDY- STORY-MARSHALL- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...AMES...MARSHALLTOWN 1125 AM CST THU FEB 2 2012 ...WINTER STORM WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE WINTER STORM WATCH. THE STORM SYSTEM EXPECTED TO AFFECT THE AREA WILL TRACK FARTHER SOUTH THAN PREVIOUSLY EXPECTED. WINTRY PRECIPITATION WILL FALL THIS WEEKEND...BUT HEAVY SNOW IS NOT EXPECTED. $$ IAZ092-093-030130- /O.EXA.KDMX.WS.A.0001.120204T0300Z-120205T1200Z/ TAYLOR-RINGGOLD- INCLUDING THE CITIES OF...BEDFORD...MOUNT AYR 1125 AM CST THU FEB 2 2012 ...WINTER STORM WATCH IN EFFECT FROM FRIDAY EVENING THROUGH LATE SATURDAY NIGHT... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM FRIDAY EVENING THROUGH LATE SATURDAY NIGHT. * TIMING...A MIX OF RAIN AND SNOW WILL DEVELOP OVER THE AREA BY MIDNIGHT FRIDAY NIGHT BEFORE SWITCHING OVER TO ALL SNOW LATE FRIDAY NIGHT INTO THE EARLY MORNING HOURS SATURDAY. THE HEAVIEST SNOWFALL ACCUMULATIONS ARE LIKELY TO OCCUR SATURDAY MORNING THROUGH EARLY SATURDAY AFTERNOON...BEFORE THE SNOW BEGINS TO DIMINISH SATURDAY EVENING. * STORM TOTAL SNOW...SNOWFALL AMOUNTS FROM 4 TO 7 INCHES ARE ANTICIPATED ACROSS THE WATCH AREA BY SATURDAY EVENING. * WINDS/VISIBILITY...NORTHEAST WINDS AT 20 TO 30 MPH WITH POSSIBLY HIGHER GUSTS WILL CAUSE SIGNIFICANT VISIBILITY RESTRICTIONS AND DRIFTING OF SNOW ON SATURDAY AND SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$ IAZ044>047-057>060-070>072-081-082-030130- /O.CON.KDMX.WS.A.0001.120204T0300Z-120205T1200Z/ CRAWFORD-CARROLL-GREENE-BOONE-AUDUBON-GUTHRIE-DALLAS-POLK-CASS- ADAIR-MADISON-ADAMS-UNION- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON...BOONE... AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...ATLANTIC... GREENFIELD...WINTERSET...CORNING...CRESTON 1125 AM CST THU FEB 2 2012 ...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH LATE SATURDAY NIGHT... * TIMING...A MIX OF RAIN AND SNOW WILL DEVELOP OVER THE AREA FRIDAY EVENING BEFORE SWITCHING OVER TO ALL SNOW PAST MIDNIGHT INTO THE EARLY MORNING HOURS SATURDAY. THE HEAVIEST SNOWFALL ACCUMULATIONS ARE LIKELY TO OCCUR SATURDAY MORNING THROUGH EARLY SATURDAY AFTERNOON...BEFORE THE SNOW BEGINS TO DIMINISH SATURDAY EVENING. * STORM TOTAL SNOW...SNOWFALL AMOUNTS FROM 4 TO 7 INCHES ARE ANTICIPATED ACROSS THE WATCH AREA BY SATURDAY EVENING. * WINDS/VISIBILITY...NORTHEAST WINDS AT 20 TO 30 MPH WITH POSSIBLY HIGHER GUSTS WILL CAUSE SIGNIFICANT VISIBILITY RESTRICTIONS AND DRIFTING OF SNOW ON SATURDAY AND SATURDAY NIGHT. 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. && $$
700 WWUS43 KDMX 022142 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 342 PM CST THU FEB 2 2012 ...HEAVY SNOW POSSIBLE ACROSS SOUTHWEST IOWA LATE FRIDAY NIGHT INTO SATURDAY... .A STRONG LOW PRESSURE SYSTEM WILL TRACK ACROSS KANSAS AND INTO CENTRAL MISSOURI THROUGHOUT THE DAY FRIDAY AND INTO SATURDAY. RAIN WILL BEGIN OVER THE AREA BY FRIDAY AFTERNOON BEFORE COLDER TEMPERATURES BEGIN TO FILTER INTO THE STATE FRIDAY NIGHT. A RAIN AND SNOW MIX IS FORECAST FRIDAY EVENING BEFORE SWITCHING OVER TO ALL SNOW DURING THE OVERNIGHT HOURS INTO SATURDAY. MODERATE TO LOCALLY HEAVY SNOW IS POSSIBLE BY SATURDAY MORNING. SNOW WILL BEGIN TO TAPER OFF LATE SATURDAY NIGHT BUT GUSTY NORTHEAST WINDS ARE FORECAST TO CONTINUE INTO SUNDAY MORNING. IAZ047-060-093-022245- /O.CAN.KDMX.WS.A.0001.120204T0300Z-120205T1200Z/ BOONE-POLK-RINGGOLD- INCLUDING THE CITIES OF...BOONE...DES MOINES...MOUNT AYR 342 PM CST THU FEB 2 2012 ...WINTER STORM WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE WINTER STORM WATCH. SNOW IS EXPECTED TO MOVE INTO THE AREA LATE FRIDAY NIGHT INTO SATURDAY...HOWEVER HEAVY SNOW IS NOT EXPECTED. THE STORM SYSTEM WILL BE MORE SIGNIFICANT TO THE SOUTH AND WEST OF THE AREA. $$ IAZ044>046-057>059-070>072-081-082-092-030545- /O.CON.KDMX.WS.A.0001.120204T0300Z-120205T1200Z/ CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE-DALLAS-CASS-ADAIR-MADISON- ADAMS-UNION-TAYLOR- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON... AUDUBON...GUTHRIE CENTER...ADEL...ATLANTIC...GREENFIELD... WINTERSET...CORNING...CRESTON...BEDFORD 342 PM CST THU FEB 2 2012 ...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH LATE SATURDAY NIGHT... * TIMING...A MIX OF RAIN AND SNOW WILL DEVELOP OVER THE AREA FRIDAY EVENING BEFORE SWITCHING OVER TO ALL SNOW AFTER MIDNIGHT FRIDAY NIGHT INTO THE EARLY MORNING HOURS SATURDAY. THE HEAVIEST SNOWFALL ACCUMULATIONS ARE LIKELY TO OCCUR SATURDAY MORNING THROUGH EARLY SATURDAY AFTERNOON...BEFORE THE SNOW BEGINS TO DIMINISH SATURDAY EVENING. * STORM TOTAL SNOW...SNOWFALL AMOUNTS FROM 4 TO 6 INCHES ARE ANTICIPATED ACROSS THE WATCH AREA BY SATURDAY EVENING WITH ISOLATED HEAVIER AMOUNTS. * WINDS/VISIBILITY...NORTHEAST WINDS AT 15 TO 25 MPH WITH A FEW HIGHER GUSTS WILL CAUSE VISIBILITY RESTRICTIONS AND CONSIDERABLE DRIFTING OF SNOW ON SATURDAY AND SATURDAY NIGHT. 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. && $$
443 WWUS43 KDMX 030336 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 936 PM CST THU FEB 2 2012 ...HEAVY SNOW POSSIBLE ACROSS WEST CENTRAL AND SOUTHWEST IOWA LATE FRIDAY NIGHT INTO SATURDAY... .A STRONG STORM SYSTEM WILL MOVE FROM THE CENTRAL PLAINS INTO THE MIDWEST EARLY THIS WEEKEND. RAIN IS EXPECTED TO MOVE INTO SOUTHERN IOWA BY FRIDAY AND INTO CENTRAL IOWA BY FRIDAY NIGHT. THE RAIN WILL TRANSITION FROM RAIN TO SNOW IN WESTERN IOWA FRIDAY NIGHT WITH TRANSITIONS FARTHER EAST AND SOUTH ON SATURDAY. MODERATE TO HEAVY SNOWFALL WILL BE POSSIBLE IN THE WATCH AREA BY SATURDAY EVENING. IAZ044>046-057>059-070>072-081-082-092-031100- /O.CON.KDMX.WS.A.0001.120204T0300Z-120205T1200Z/ CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE-DALLAS-CASS-ADAIR-MADISON- ADAMS-UNION-TAYLOR- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON... AUDUBON...GUTHRIE CENTER...ADEL...ATLANTIC...GREENFIELD... WINTERSET...CORNING...CRESTON...BEDFORD 936 PM CST THU FEB 2 2012 ...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH LATE SATURDAY NIGHT... * TIMING...RAIN IS EXPECTED ACROSS THE AREA ON FRIDAY EVENING. A GRADUAL TRANSITION TO SNOW WILL BEGIN FRIDAY NIGHT IN WEST CENTRAL IOWA WITH THE RAIN AND SNOW LINE GRADUALLY PUSHING SOUTHEAST LATE FRIDAY NIGHT INTO SATURDAY. MUCH OF THE WATCH AREA WILL SEE SNOW BY MIDDAY SATURDAY WITH THE SNOW PERSISTING UNTIL SLOWLY DIMINISHING SATURDAY NIGHT. * STORM TOTAL SNOW...SNOWFALL AMOUNTS FROM 4 TO 6 INCHES ARE ANTICIPATED ACROSS THE WATCH AREA BY SATURDAY EVENING WITH ISOLATED HEAVIER AMOUNTS. * WINDS/VISIBILITY...NORTHEAST WINDS AT 15 TO 25 MPH WITH A FEW HIGHER GUSTS WILL CAUSE VISIBILITY RESTRICTIONS AND CONSIDERABLE DRIFTING OF SNOW ON SATURDAY AND SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$ CC
981 WWUS43 KDMX 031037 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 437 AM CST FRI FEB 3 2012 ...HEAVY SNOW POSSIBLE ACROSS PORTIONS OF CENTRAL TO SOUTHWEST IOWA LATE TONIGHT THROUGH SATURDAY... .A STRONG STORM SYSTEM IS FORECAST TO CONTINUE TO TRACK ACROSS THE CENTRAL PLAINS AND INTO THE MIDWEST AND WILL BRING A CHANCE OF RAIN TO SOUTHERN IOWA THROUGHOUT THE DAY TODAY AND INTO THIS EVENING. COLDER TEMPERATURES WILL BEGIN TO FILTER INTO THE STATE AS THE SURFACE LOW SHIFTS EASTWARD TONIGHT. THIS WILL ALLOW FOR A TRANSITION PERIOD FROM RAIN TO SNOW LATE TONIGHT INTO THE EARLY MORNING HOURS SATURDAY. A MODERATE TO LOCALLY HEAVY BAND OF SNOW WILL SET UP FROM CENTRAL TO WEST CENTRAL IOWA BY SATURDAY MORNING. IN ADDITION TO THE FALLING SNOW...GUSTY NORTHEAST WINDS WILL LEAD TO VISIBILITY RESTRICTIONS AND POTENTIALLY SIGNIFICANT BLOWING AND DRIFTING OF SNOW. IAZ047-048-060-031845- /O.EXB.KDMX.WS.A.0001.120204T0600Z-120205T1200Z/ BOONE-STORY-POLK- INCLUDING THE CITIES OF...BOONE...AMES...DES MOINES 437 AM CST FRI FEB 3 2012 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE SATURDAY NIGHT... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH LATE SATURDAY NIGHT. * TIMING...RAIN WILL SWITCH OVER TO ALL SNOW PAST MIDNIGHT TONIGHT INTO THE EARLY MORNING HOURS SATURDAY. THE HEAVIEST SNOW IS LIKELY TO OCCUR BEFORE SUNRISE SATURDAY MORNING THROUGH MIDDAY SATURDAY. SNOW WILL BEGIN TO DIMINISH SATURDAY EVENING. * STORM TOTAL SNOW...SNOWFALL AMOUNTS FROM 4 TO 6 INCHES ARE ANTICIPATED WITH LOCALLY HEAVIER AMOUNTS ARE POSSIBLE. * WINDS/VISIBILITY...NORTHEAST WINDS AT 15 TO 30 MPH WITH A FEW HIGHER GUSTS WILL CAUSE VISIBILITY RESTRICTIONS AND CONSIDERABLE DRIFTING OF SNOW ON SATURDAY AND SATURDAY NIGHT. 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. && $$ IAZ044>046-057>059-070>072-081-082-092-031845- /O.EXT.KDMX.WS.A.0001.120204T0600Z-120205T1200Z/ CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE-DALLAS-CASS-ADAIR-MADISON- ADAMS-UNION-TAYLOR- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON... AUDUBON...GUTHRIE CENTER...ADEL...ATLANTIC...GREENFIELD... WINTERSET...CORNING...CRESTON...BEDFORD 437 AM CST FRI FEB 3 2012 ...WINTER STORM WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH LATE SATURDAY NIGHT... * TIMING...A GRADUAL TRANSITION FROM RAIN TO SNOW WILL BEGIN LATE THIS EVENING INTO THE OVERNIGHT HOURS. MUCH OF THE WATCH AREA WILL SEE ALL SNOW BY EARLY SATURDAY MORNING WHERE THE HEAVIEST SNOWFALL AMOUNTS ARE LIKELY TO OCCUR. SNOW WILL BEGIN TO DIMINISH SATURDAY EVENING. * STORM TOTAL SNOW...SNOWFALL AMOUNTS FROM 5 TO 8 INCHES WITH LOCALLY HEAVIER AMOUNTS ARE POSSIBLE. * WINDS/VISIBILITY...NORTHEAST WINDS AT 20 TO 30 MPH WITH A FEW HIGHER GUSTS WILL CAUSE VISIBILITY RESTRICTIONS AND CONSIDERABLE DRIFTING OF SNOW ON SATURDAY AND SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$ PODRAZIK
888 WWUS43 KDMX 031103 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 503 AM CST FRI FEB 3 2012 ...HEAVY SNOW POSSIBLE ACROSS PORTIONS OF CENTRAL TO SOUTHWEST IOWA LATE TONIGHT THROUGH SATURDAY... .A STRONG STORM SYSTEM IS FORECAST TO CONTINUE TO TRACK ACROSS THE CENTRAL PLAINS AND INTO THE MIDWEST AND WILL BRING A CHANCE OF RAIN TO SOUTHERN IOWA THROUGHOUT THE DAY TODAY AND INTO THIS EVENING. COLDER TEMPERATURES WILL BEGIN TO FILTER INTO THE STATE AS THE SURFACE LOW SHIFTS EASTWARD TONIGHT. THIS WILL ALLOW FOR A TRANSITION PERIOD FROM RAIN TO SNOW LATE TONIGHT INTO THE EARLY MORNING HOURS SATURDAY. A MODERATE TO LOCALLY HEAVY BAND OF SNOW WILL SET UP FROM CENTRAL TO WEST CENTRAL IOWA BY SATURDAY MORNING. IN ADDITION TO THE FALLING SNOW...GUSTY NORTHEAST WINDS WILL LEAD TO VISIBILITY RESTRICTIONS AND POTENTIALLY SIGNIFICANT BLOWING AND DRIFTING OF SNOW. IAZ044>048-057>060-070>072-081-082-092-031915- /O.CON.KDMX.WS.A.0001.120204T0600Z-120205T1200Z/ CRAWFORD-CARROLL-GREENE-BOONE-STORY-AUDUBON-GUTHRIE-DALLAS-POLK- CASS-ADAIR-MADISON-ADAMS-UNION-TAYLOR- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON...BOONE... AMES...AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...ATLANTIC... GREENFIELD...WINTERSET...CORNING...CRESTON...BEDFORD 503 AM CST FRI FEB 3 2012 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH LATE SATURDAY NIGHT... * TIMING...A GRADUAL TRANSITION FROM RAIN TO SNOW WILL BEGIN LATE THIS EVENING INTO THE OVERNIGHT HOURS. MUCH OF THE WATCH AREA WILL SEE ALL SNOW BY EARLY SATURDAY MORNING WHERE THE HEAVIEST SNOWFALL AMOUNTS ARE LIKELY TO OCCUR. SNOW WILL BEGIN TO DIMINISH SATURDAY EVENING. * STORM TOTAL SNOW...SNOWFALL AMOUNTS FROM 4 TO 8 INCHES WITH LOCALLY HEAVIER AMOUNTS ARE POSSIBLE. * WINDS/VISIBILITY...NORTHEAST WINDS AT 20 TO 30 MPH WITH A FEW HIGHER GUSTS WILL CAUSE VISIBILITY RESTRICTIONS AND CONSIDERABLE DRIFTING OF SNOW ON SATURDAY AND SATURDAY NIGHT. 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
830 WWUS43 KDMX 031715 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1115 AM CST FRI FEB 3 2012 ...HEAVY SNOW POSSIBLE ACROSS PORTIONS OF CENTRAL TO SOUTHWEST IOWA LATE TONIGHT THROUGH SATURDAY... .A STRONG STORM SYSTEM IS FORECAST TO CONTINUE TO TRACK ACROSS THE CENTRAL PLAINS AND INTO THE MIDWEST AND WILL BRING A CHANCE OF RAIN TO SOUTHERN IOWA THROUGHOUT THE DAY TODAY AND INTO THIS EVENING. COLDER TEMPERATURES WILL BEGIN TO FILTER INTO THE STATE AS THE SURFACE LOW SHIFTS EASTWARD TONIGHT. THIS WILL ALLOW FOR A TRANSITION PERIOD FROM RAIN TO SNOW LATE TONIGHT INTO THE EARLY MORNING HOURS SATURDAY. A MODERATE TO LOCALLY HEAVY BAND OF SNOW WILL SET UP FROM CENTRAL TO WEST CENTRAL IOWA BY SATURDAY MORNING. IN ADDITION TO THE FALLING SNOW...GUSTY NORTHEAST WINDS WILL LEAD TO VISIBILITY RESTRICTIONS AND POTENTIALLY SIGNIFICANT BLOWING AND DRIFTING OF SNOW. IAZ044>048-057>060-070>072-081-082-092-040115- /O.CON.KDMX.WS.A.0001.120204T0600Z-120205T1200Z/ CRAWFORD-CARROLL-GREENE-BOONE-STORY-AUDUBON-GUTHRIE-DALLAS-POLK- CASS-ADAIR-MADISON-ADAMS-UNION-TAYLOR- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON...BOONE... AMES...AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...ATLANTIC... GREENFIELD...WINTERSET...CORNING...CRESTON...BEDFORD 1115 AM CST FRI FEB 3 2012 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH LATE SATURDAY NIGHT... * TIMING...A GRADUAL TRANSITION FROM RAIN TO SNOW WILL BEGIN LATE THIS EVENING INTO THE OVERNIGHT HOURS. MUCH OF THE WATCH AREA WILL SEE ALL SNOW BY EARLY SATURDAY MORNING WHERE THE HEAVIEST SNOWFALL AMOUNTS ARE LIKELY TO OCCUR. SNOW WILL BEGIN TO DIMINISH SATURDAY EVENING. * STORM TOTAL SNOW...SNOWFALL AMOUNTS FROM 4 TO 8 INCHES WITH LOCALLY HEAVIER AMOUNTS ARE POSSIBLE. * WINDS/VISIBILITY...NORTHEAST WINDS AT 20 TO 30 MPH WITH A FEW HIGHER GUSTS WILL CAUSE VISIBILITY RESTRICTIONS AND CONSIDERABLE DRIFTING OF SNOW ON SATURDAY AND SATURDAY NIGHT. 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. && $$ KS
275 WWUS43 KDMX 032136 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 336 PM CST FRI FEB 3 2012 ...HEAVY SNOW EXPECTED ACROSS PORTIONS OF CENTRAL TO SOUTHWEST IOWA LATE TONIGHT THROUGH SATURDAY... .A STRONG STORM SYSTEM IS FORECAST TO CONTINUE TO TRACK ACROSS THE CENTRAL PLAINS AND INTO THE MIDWEST TONIGHT. RAIN WILL MIX WITH AND EVENTUALLY CHANGE OVER TO SNOW OVERNIGHT TONIGHT AND INTO THE EARLY MORNING HOURS SATURDAY. A MODERATE TO LOCALLY HEAVY BAND OF SNOW WILL SET UP FROM CENTRAL TO WEST CENTRAL IOWA BY SATURDAY MORNING. IN ADDITION TO THE FALLING SNOW...GUSTY NORTHEAST WINDS MAY LEAD TO VISIBILITY RESTRICTIONS DUE TO BLOWING AND DRIFTING OF SNOW. IAZ044>048-057>060-070>072-081-082-040545- /O.UPG.KDMX.WS.A.0001.120204T0600Z-120205T1200Z/ /O.NEW.KDMX.WS.W.0002.120204T0600Z-120205T1200Z/ CRAWFORD-CARROLL-GREENE-BOONE-STORY-AUDUBON-GUTHRIE-DALLAS-POLK- CASS-ADAIR-MADISON-ADAMS-UNION- INCLUDING THE CITIES OF...DENISON...CARROLL...JEFFERSON...BOONE... AMES...AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...ATLANTIC... GREENFIELD...WINTERSET...CORNING...CRESTON 336 PM CST FRI FEB 3 2012 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST SUNDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...A GRADUAL TRANSITION FROM RAIN TO SNOW WILL BEGIN LATE THIS EVENING INTO THE OVERNIGHT HOURS. MUCH OF THE WARNED AREA WILL SEE ALL SNOW BY EARLY SATURDAY MORNING. A NARROW BAND OF HEAVY SNOW IS EXPECTED TO SET UP ACROSS CENTRAL IOWA DURING THE DAY ON SATURDAY. SNOW WILL BEGIN TO DIMINISH SATURDAY EVENING. * STORM TOTAL SNOW...SNOWFALL AMOUNTS FROM 4 TO 8 INCHES WITH LOCALLY HEAVIER AMOUNTS ARE POSSIBLE. * WINDS/VISIBILITY...NORTHEAST WINDS OF 20 TO 30 MPH WITH A FEW HIGHER GUSTS WILL CAUSE VISIBILITY RESTRICTIONS AND DRIFTING OF SNOW ON SATURDAY AND SATURDAY NIGHT. * IMPACTS...HEAVY SNOW WILL MAKE TRAVEL DANGEROUS ACROSS THE WARNED AREA. THE FALLING SNOW...COMBINED WITH STRONG WINDS...WILL LEAD TO REDUCED VISIBILITIES. ROADS WILL LIKELY BECOME SLIPPERY AS THE WET SNOW FREEZES TO THE PAVEMENT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ IAZ092-040545- /O.UPG.KDMX.WS.A.0001.120204T0600Z-120205T1200Z/ /O.NEW.KDMX.WW.Y.0004.120204T0600Z-120205T1200Z/ TAYLOR- INCLUDING THE CITY OF...BEDFORD 336 PM CST FRI FEB 3 2012 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST SUNDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...A GRADUAL TRANSITION FROM RAIN TO SNOW WILL BEGIN DURING THE MORNING ON SATURDAY. SNOW WILL CONTINUE DURING THE DAY BEFORE DIMINISHING ON SATURDAY EVENING. * STORM TOTAL SNOW...SNOWFALL AMOUNTS FROM 1 TO 4 INCHES WITH LOCALLY HEAVIER AMOUNTS POSSIBLE. * WINDS/VISIBILITY...NORTHEAST WINDS AT 20 TO 30 MPH WITH A FEW HIGHER GUSTS MAY CAUSE TEMPORARY VISIBILITY RESTRICTIONS AND MINOR DRIFTING OF SNOW ON SATURDAY AND SATURDAY NIGHT. * MAIN IMPACT...PERIODS OF SNOW WILL MAKE AREA ROADS SLICK AND LEAD TO REDUCED VISIBILITIES AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING. && $$ IAZ049-061-073-074-083-084-093-094-040545- /O.NEW.KDMX.WW.Y.0004.120204T0600Z-120205T1200Z/ MARSHALL-JASPER-WARREN-MARION-CLARKE-LUCAS-RINGGOLD-DECATUR- INCLUDING THE CITIES OF...MARSHALLTOWN...NEWTON...INDIANOLA... KNOXVILLE...OSCEOLA...CHARITON...MOUNT AYR...LEON 336 PM CST FRI FEB 3 2012 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST SUNDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST SUNDAY. * TIMING...A GRADUAL TRANSITION FROM RAIN TO SNOW WILL BEGIN DURING THE MORNING ON SATURDAY. SNOW WILL CONTINUE DURING THE DAY BEFORE DIMINISHING ON SATURDAY EVENING. * STORM TOTAL SNOW...SNOWFALL AMOUNTS FROM 1 TO 4 INCHES WITH LOCALLY HEAVIER AMOUNTS POSSIBLE. * WINDS/VISIBILITY...NORTHEAST WINDS AT 20 TO 30 MPH WITH A FEW HIGHER GUSTS MAY CAUSE TEMPORARY VISIBILITY RESTRICTIONS AND MINOR DRIFTING OF SNOW ON SATURDAY AND SATURDAY NIGHT. * MAIN IMPACT...PERIODS OF SNOW WILL MAKE AREA ROADS SLICK AND LEAD TO REDUCED VISIBILITIES AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING. && $$
What forecasters said that day
The local office's own words before this winter storm watch 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 watch went out at Feb 2, 3:54 AM CST, 40 minutes earlier.
Area forecast discussion, Feb 2, 3:54 AM CST, 40 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DES MOINES IA 354 AM CST THU FEB 2 2012 .SHORT TERM /TODAY/... HIGH PRESSURE ACROSS THE STATE THIS MORNING WILL GRADUALLY SHIFT EASTWARD TODAY AS A SIGNIFICANT UPPER LEVEL ANOMALY SHIFTS EAST INTO NEW MEXICO...IGNITING SFC CYCLOGENESIS THROUGH EASTERN NEW MEXICO AND THE TEXAS PANHANDLE BY THIS AFTERNOON. DENSE FOG CURRENTLY OVER THE EASTERN THIRD OF THE STATE. THERE HAS BEEN SOME WESTERN EDGE EROSION OVER NORTH CENTRAL IA WITH MASON CITY CLEARING OUT. VISIBILITIES HAVE HOWEVER BEEN ON THE DECLINE THROUGH CENTRAL IA EARLY THIS MORNING. SOME UNCERTAINTY TO HOW QUICKLY THE FOG WILL CLEAR OUT TODAY. THE DIFFERENCE TODAY COMPARED TO WEDNESDAY IS THE SATURATED DEPTH WILL BE VERY SHALLOW WITH DRY AIR ADVECTING IN AT 950 MB EARLY THIS MORNING. SFC FLOW THOUGH WILL BE QUITE LIGHT TO NON EXISTENT MUCH OF THE DAY OVER THE NORTHEAST. IF THE FOG LINGERS EAST OF THE AREA THOUGH THE DAY...IT COULD BE ADVECTED BACK IN LATE IN THE PERIOD AS THE LOW LEVEL FLOW SHIFTS BACK EAST. DENSE FOG ADVISORY WILL REMAIN IN EFFECT THROUGH 16Z THIS MORNING THOUGH WILL SHAVE A FEW COUNTIES OFF THE WEST EDGE. OVERALL...HIGH TEMPERATURES WILL BE SIMILAR TO THOSE ON WEDNESDAY OVER CENTRAL AND SOUTHERN IA AND A BIT WARMER OVER THE NORTHEAST. RECORD HIGH TEMPERATURE IN DES MOINES IS 65 AND SHOULD NOT APPROACH THAT TODAY THOUGH A FOURTH STRAIGHT 60 DEGREES IS POSSIBLE. .LONG TERM /TONIGHT THROUGH WEDNESDAY/... A WINTER STORM WATCH WILL BE ISSUED SHORTLY FOR CENTRAL AND WEST CENTRAL IOWA FRIDAY NIGHT THROUGH SUNDAY MORNING. THE FORECAST DISCUSSION WILL BE UPDATED FOR THE LONG TERM DISCUSSION SOON. && .AVIATION...02/06Z DENSE FOG WILL CONTINUE TO PLAGUE THE TERMINALS AND KALO AND KMCW OVERNIGHT WITH LIGHT WINDS AND MOIST NEAR SURFACE LAYER. THIS FOG WILL BE SLOW TO DISSIPATE ON THURSDAY MORNING BUT SHOULD EVENTUALLY BURN OFF BY EARLY AFTERNOON. ELSEWHERE...WIDESPREAD VFR CONDITIONS ARE EXPECTED OVERNIGHT INTO THURSDAY WITH LIGHT WINDS EVENTUALLY BECOMING EASTERLY BY LATE THURSDAY. WILL BEGIN TO SEE INCREASING HIGH CLOUDS ON THURSDAY EVENING AHEAD OF A SYSTEM POISED TO BRING A DRAMATIC CHANGE TO AVIATION CONDITIONS LATE FRIDAY INTO THE WEEKEND. && .DMX WATCHES/WARNINGS/ADVISORIES...DENSE FOG ADVISORY UNTIL 10 AM FOR WORTH-CERRO GORDO-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY-BLACK HAWK- STORY-MARSHALL-TAMA-JASPER-POWESHIEK-MARION-MAHASKA-WAPELLO.. && SHORT TERM...DONAVON LONG TERM...PODRAZIK AVIATION...COGIL
Hazardous weather outlook, Feb 1, 8:05 PM CST, 8 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 805 PM CST WED FEB 1 2012 IAZ004-005-015-023-024-033>035-044>047-057>060-070>073-021200- EMMET-KOSSUTH-PALO ALTO-POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER- CRAWFORD-CARROLL-GREENE-BOONE-AUDUBON-GUTHRIE-DALLAS-POLK-CASS-ADAIR- MADISON-WARREN- 805 PM CST WED FEB 1 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A STRONG LOW PRESSURE SYSTEM WILL MOVE ACROSS THE STATE THIS WEEKEND. PRECIPITATION WILL INITIALLY START AS RAIN ON FRIDAY BEFORE CHANGING OVER TO SNOW ON FRIDAY NIGHT. ACCUMULATING SNOW IS THEN FORECAST INTO SATURDAY NIGHT. MODERATE TO HEAVY SNOW ACCUMULATIONS ARE EXPECTED DURING THIS TIME WITH HIGHEST AMOUNTS EXPECTED NEAR THE HIGHWAY 30 CORRIDOR. THERE IS STILL SOME UNCERTAINTY WITH THE EXACT TRACK OF THE STORM...AND FORECAST SNOWFALL AMOUNTS MAY CHANGE SUBSTANTIALLY IN THE NEXT FEW DAYS. STAY TUNED FOR POSSIBLE WATCHES AND WARNINGS IN THE NEAR FUTURE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED...HOWEVER SNOWFALL REPORTS FROM THE UPCOMING WINTER STORM WOULD BE APPRECIATED. IAZ074-075-081>086-092>097-021200- MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR- RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- 805 PM CST WED FEB 1 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A STRONG LOW PRESSURE SYSTEM WILL MOVE ACROSS THE STATE THIS WEEKEND. RAIN IS FORECAST TO OVERSPREAD THE AREA ON FRIDAY WITH THE THREAT OF SOME NON SEVERE THUNDERSTORMS LATE FRIDAY AFTERNOON INTO FRIDAY NIGHT. A GRADUAL TRANSITION TO SNOW IS EXPECTED ON SATURDAY WITH SOME LIGHT ACCUMULATIONS OF SNOW POSSIBLE BY THE TIME PRECIPITATION ENDS EARLY SUNDAY MORNING. THERE IS STILL SOME UNCERTAINTY WITH THE EXACT TRACK OF THE STORM...AND FORECAST SNOWFALL AMOUNTS MAY CHANGE SUBSTANTIALLY IN THE NEXT FEW DAYS. STAY TUNED FOR POSSIBLE WATCHES AND WARNINGS IN THE NEAR FUTURE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED...HOWEVER SNOWFALL REPORTS FROM THE UPCOMING WINTER STORM WOULD BE APPRECIATED. IAZ006-007-016-017-025>028-036>039-048>050-061-062-021200- WINNEBAGO-WORTH-HANCOCK-CERRO GORDO-WRIGHT-FRANKLIN-BUTLER-BREMER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-STORY-MARSHALL-TAMA-JASPER- POWESHIEK- 805 PM CST WED FEB 1 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TONIGHT DENSE FOG IS EXPECTED TO CURTAIL VISIBILITIES TONIGHT. A DENSE FOG ADVISORY IS IN EFFECT FOR THE AREA OVERNIGHT. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV\DESMOINES FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY DENSE FOG IS EXPECTED TO PERSIST INTO THURSDAY MORNING. A DENSE FOG ADVISORY IS IN EFFECT FOR THE AREA THROUGH MID MORNING THURSDAY. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV\DESMOINES FOR FURTHER DETAILS. A STRONG LOW PRESSURE SYSTEM WILL MOVE ACROSS THE STATE THIS WEEKEND. PRECIPITATION WILL INITIALLY START AS RAIN ON FRIDAY BEFORE CHANGING OVER TO SNOW ON FRIDAY NIGHT. ACCUMULATING SNOW IS THEN FORECAST INTO SATURDAY NIGHT. MODERATE TO LOCALLY HEAVY SNOW ACCUMULATIONS ARE EXPECTED DURING THIS TIME WITH HIGHEST AMOUNTS EXPECTED NEAR THE HIGHWAY 30 TO HIGHWAY 20 CORRIDOR. THERE IS STILL SOME UNCERTAINTY WITH THE EXACT TRACK OF THE STORM...AND FORECAST SNOWFALL AMOUNTS MAY CHANGE SUBSTANTIALLY IN THE NEXT FEW DAYS. STAY TUNED FOR POSSIBLE WATCHES AND WARNINGS IN THE NEAR FUTURE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED...HOWEVER SNOWFALL REPORTS FROM THE UPCOMING WINTER STORM WOULD BE APPRECIATED. CC
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 1, 7:38 PM CST | Dense Fog Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 14 more | 16 hr |
| Feb 2, 12:00 PM CST | Dense Fog Advisory | DMX | Black Hawk, Bremer | 118 min |
| Feb 2, 3:41 PM CST | Dense Fog Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Davis, Franklin and 13 more | 14 hr |
Nearby
Winter Storm Watches in Iowa, 2012Every winter storm watch in 2012
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.