Alert archive / Iowa / Winter Storm Warnings in 2011
Winter Storm Warning 1, NWS Quad Cities, IA
NWS Quad Cities, IA issued this winter storm warning at Feb 24, 2011, 3:20 AM CST for 5 counties in Iowa; 4 counties in Illinois; Clark County, Scotland County, Missouri. It took effect at Feb 24, 2011, 4:00 PM CST. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 24, 2011, 3:20 AM CST (09:20 UTC)
- In effect from
- Feb 24, 2011, 4:00 PM CST
- Expired
- Feb 24, 2011, 8:49 PM CST
- In force
- 5 hr
- Issued by
- NWS Quad Cities, IA
Counties Des Moines County, IA, Henry County, IA, Jefferson County, IA, Lee County, IA, Van Buren County, IA, Hancock County, IL, Henderson County, IL, McDonough County, IL, Warren County, IL, Clark County, MO, Scotland County, MO
The radar
The Quad Cities radar (KDVN), 122 km from the middle of the area, began a volume at 09:18 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
Davenport, (KDVN), launched 00:00Z, 9.3 hours before the alert went out and 127 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
- 671 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 330 m²/s²
- 0-3 km storm-relative helicity
- 336 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
701 WWUS43 KDVN 240920 WSWDVN URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE QUAD CITIES IA IL 320 AM CST THU FEB 24 2011 ...WINTER STORM ON THE WAY... ..A WINTER STORM WILL BRING MODERATE TO HEAVY SNOW TO THE AREA FROM LATE AFTERNOON THROUGH TONIGHT. SNOW WILL SPREAD NORTHEAST OVER THE REGION TODAY...REACHING AREAS ALONG AND SOUTH OF HIGHWAY 34 BY LATE AFTERNOON. THIS SNOW WILL REACH INTERSTATE 80 CORRIDOR COUNTIES BY EARLY EVENING...AND AREAS FARTHER NORTH BY 8 PM. SNOW AMOUNT OF 5 TO 7 INCHES ARE EXPECTED ALONG AND SOUTH OF HIGHWAY 34...WITH AMOUNTS OF 3 TO 5 INCHES WIDESPREAD THROUGH AN IOWA CITY TO CLINTON...TO MOUNT CARROLL LINE. THE EXACT TRACK OF THIS STORM IS STILL A BIT UNCERTAIN...AND DUE TO THAT THERE IS THE POSSIBILITY OF A FEW BANDS OF HIGHER AMOUNTS. WIND WILL INCREASE TO 15 TO 20 MPH TONIGHT...RESULTING IN SIGNIFICANT DRIFTING OF THE SNOW. IAZ089-098-099-ILZ025-026-034-035-MOZ009-010-241930- /O.NEW.KDVN.WS.W.0001.110224T2200Z-110225T1200Z/ DES MOINES-VAN BUREN-LEE-HENDERSON-WARREN-HANCOCK-MCDONOUGH- SCOTLAND-CLARK- INCLUDING THE CITIES OF...BURLINGTON...KEOSAUQUA.... FORT MADISON...OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...MEMPHIS... KAHOKA 320 AM CST THU FEB 24 2011 ...WINTER STORM WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 6 AM CST FRIDAY... THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 6 AM CST FRIDAY. * SNOW WILL BEGIN LATE THIS AFTERNOON...AND WILL CONTINUE TO FALL THROUGH TONIGHT. * SNOWFALL OF 5 TO 7 INCHES IS LIKELY...WITH ISOLATED HIGHER AMOUNTS POSSIBLE. * WINDS WILL INCREASE TO 15 TO 20 MPH. * VISIBILITY WILL BE RESTRICTED TO UNDER 1/2 MILE AT TIMES DUE TO MODERATE TO HEAVY SNOW. * THE MAIN IMPACT WILL BE HEAVY SNOW FALL...WITH THE WIND CAUSING SOME SIGNIFICANT DRIFTING OF THE SNOW OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS 6 TO 7 INCHES OR MORE OF SNOW IS EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS...SO ONLY TRAVEL IN AN EMERGENCY AND TAKE YOUR WINTER SURVIVAL KIT. && $$ IAZ063>068-076>078-087-088-ILZ007-009-015>018-024-241930- /O.NEW.KDVN.WW.Y.0005.110225T0000Z-110225T1200Z/ IOWA-JOHNSON-CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON- LOUISA-JEFFERSON-HENRY IA-CARROLL-WHITESIDE-ROCK ISLAND-HENRY IL- BUREAU-PUTNAM-MERCER- INCLUDING THE CITIES OF...MARENGO...IOWA CITY...TIPTON... CLINTON...MUSCATINE...BETTENDORF...DAVENPORT...SIGOURNEY... WASHINGTON...WAPELLO...FAIRFIELD...MOUNT PLEASANT... MOUNT CARROLL...STERLING...ROCK FALLS...MOLINE...ROCK ISLAND... KEWANEE...PRINCETON...HENNEPIN...ALEDO 320 AM CST THU FEB 24 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST FRIDAY... THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A WINTER WEATHER ADVISORY FOR SIGNIFICANT SNOW AND DRIFTING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST FRIDAY. * SNOW WILL BEGIN LATE THIS AFTERNOON...AND WILL CONTINUE TO FALL THROUGH TONIGHT. * SNOWFALL OF 3 TO 5 INCHES IS LIKELY...WITH ISOLATED HIGHER AMOUNTS POSSIBLE. * WINDS WILL INCREASE TO 15 TO 20 MPH. * VISIBILITY WILL BE RESTRICTED TO UNDER 1/2 MILE AT TIMES DUE TO MODERATE TO HEAVY SNOW. * THE MAIN IMPACT WILL BE SIGNIFICANT SNOW FALL...WITH THE WIND CAUSING SOME SIGNIFICANT DRIFTING OF THE SNOW OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLICK...SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND BE CAREFUL WHILE DRIVING. && $$ ERVIN
4 follow-up statements
889 WWUS43 KDVN 241608 WSWDVN URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE QUAD CITIES IA IL 1008 AM CST THU FEB 24 2011 ...SIGNIFICANT WINTER STORM ON THE WAY... ..A WINTER STORM WILL BRING MODERATE TO HEAVY SNOW TO THE AREA FROM LATE AFTERNOON THROUGH TONIGHT. SNOW WILL SPREAD NORTHEAST OVER THE REGION TODAY...REACHING AREAS ALONG AND SOUTH OF HIGHWAY 34 BY LATE AFTERNOON. THIS SNOW WILL REACH INTERSTATE 80 CORRIDOR COUNTIES BY EARLY EVENING...AND AREAS FARTHER NORTH BY 8 PM. SNOW AMOUNTS OF ABOUT 6 TO 10 INCHES ARE EXPECTED ALONG AND SOUTH OF HIGHWAY 34...WITH AMOUNTS OF 3 TO 6 INCHES FROM ABOUT HIGHWAY 30 SOUTH TO NEAR HIGHWAY 34. ONLY ABOUT 1 TO 3 INCHES IS EXPECTED NORTH OF HIGHWAY 30. WIND WILL INCREASE TO 15 TO 25 MPH TONIGHT... RESULTING IN SIGNIFICANT DRIFTING AND SOME BLOWING OF THE SNOW. IAZ089-098-099-ILZ025-026-034-035-MOZ009-010-250215- /O.CON.KDVN.WS.W.0001.110224T2200Z-110225T1200Z/ DES MOINES-VAN BUREN-LEE-HENDERSON-WARREN-HANCOCK-MCDONOUGH- SCOTLAND-CLARK- INCLUDING THE CITIES OF...BURLINGTON...KEOSAUQUA.... FORT MADISON...OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...MEMPHIS... KAHOKA 1008 AM CST THU FEB 24 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 6 AM CST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 6 AM CST FRIDAY. * SNOW WILL BEGIN LATE THIS AFTERNOON...AND WILL CONTINUE THROUGH TONIGHT. SNOW WILL BE HEAVY AT TIMES ESPECIALLY THIS EVENING. THUNDER AND LIGHTNING ARE ALSO POSSIBLE. * SNOWFALL OF 6 TO 10 INCHES IS LIKELY. * WINDS WILL INCREASE TO 15 TO 25 MPH. * VISIBILITY WILL BE RESTRICTED TO UNDER 1/2 MILE AT TIMES DUE TO MODERATE TO HEAVY SNOW. * THE MAIN IMPACT WILL BE HEAVY SNOW...WITH THE WIND CAUSING SOME SIGNIFICANT DRIFTING AND SOME BLOWING OF THE SNOW OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS 6 INCHES OR MORE OF SNOW IS EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS...SO ONLY TRAVEL IN AN EMERGENCY AND TAKE YOUR WINTER SURVIVAL KIT. && $$ IAZ063>068-076>078-087-088-ILZ007-009-015>018-024-250215- /O.CON.KDVN.WW.Y.0005.110225T0000Z-110225T1200Z/ IOWA-JOHNSON-CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON- LOUISA-JEFFERSON-HENRY IA-CARROLL-WHITESIDE-ROCK ISLAND-HENRY IL- BUREAU-PUTNAM-MERCER- INCLUDING THE CITIES OF...MARENGO...IOWA CITY...TIPTON... CLINTON...MUSCATINE...BETTENDORF...DAVENPORT...SIGOURNEY... WASHINGTON...WAPELLO...FAIRFIELD...MOUNT PLEASANT... MOUNT CARROLL...STERLING...ROCK FALLS...MOLINE...ROCK ISLAND... KEWANEE...PRINCETON...HENNEPIN...ALEDO 1008 AM CST THU FEB 24 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST FRIDAY. * SNOW WILL BEGIN LATE THIS AFTERNOON OR EARLY THIS EVENING...AND WILL CONTINUE TO FALL THROUGH TONIGHT. * SNOWFALL OF 3 TO 6 INCHES IS LIKELY. * WINDS WILL INCREASE TO 15 TO 25 MPH. * VISIBILITY WILL BE RESTRICTED TO UNDER 1/2 MILE AT TIMES DUE TO MODERATE TO HEAVY SNOW. * THE MAIN IMPACT WILL BE SIGNIFICANT SNOW...WITH THE WIND CAUSING SOME SIGNIFICANT DRIFTING AND SOME BLOWING OF THE SNOW OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLICK...SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND BE CAREFUL WHILE DRIVING. && $$ HAASE
808 WWUS43 KDVN 242059 WSWDVN URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE QUAD CITIES IA IL 259 PM CST THU FEB 24 2011 ...SIGNIFICANT WINTER STORM BEARING DOWN ON THE REGION... .A SIGNIFICANT WINTER STORM WILL BRING MODERATE TO HEAVY SNOW TO THE AREA FROM LATE THIS AFTERNOON INTO TONIGHT. HOWEVER ONLY LIGHT SNOW IS EXPECTED NORTH OF HIGHWAY 30. SNOW WILL SPREAD NORTHEAST OVER THE REGION BY LATE THIS AFTERNOON OR EARLY THIS EVENING... REACHING AREAS NORTH OF HIGHWAY 30 AFTER 8 PM. SNOW AMOUNTS OF ABOUT 6 TO 10 INCHES ARE EXPECTED ALONG AND SOUTH OF HIGHWAY 34...WITH AMOUNTS OF 3 TO 6 INCHES FROM ABOUT HIGHWAY 30 SOUTH TO NEAR HIGHWAY 34. ONLY ABOUT 1 TO 3 INCHES IS EXPECTED NORTH OF HIGHWAY 30. WIND WILL INCREASE TO 15 TO 25 MPH TONIGHT...RESULTING IN SIGNIFICANT DRIFTING AND SOME BLOWING OF THE SNOW. IAZ087-088-250700- /O.UPG.KDVN.WW.Y.0005.110225T0000Z-110225T1200Z/ /O.EXA.KDVN.WS.W.0001.110224T2200Z-110225T1200Z/ JEFFERSON-HENRY IA- INCLUDING THE CITIES OF...FAIRFIELD...MOUNT PLEASANT 259 PM CST THU FEB 24 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 6 AM CST FRIDAY... THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL 6 AM CST FRIDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * SNOW WILL BEGIN LATE THIS AFTERNOON AND WILL CONTINUE TO FALL THROUGH TONIGHT. * SNOWFALL OF 6 TO 8 INCHES IS LIKELY. * WINDS WILL INCREASE TO 15 TO 25 MPH. * VISIBILITY WILL BE RESTRICTED TO UNDER 1/2 MILE AT TIMES DUE TO MODERATE TO HEAVY SNOW. * THE MAIN IMPACT WILL BE SIGNIFICANT SNOW...WITH THE WIND CAUSING SOME SIGNIFICANT DRIFTING AND SOME BLOWING OF THE SNOW OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS 6 INCHES OR MORE OF SNOW IS EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS...SO ONLY TRAVEL IN AN EMERGENCY AND TAKE YOUR WINTER SURVIVAL KIT. && $$ IAZ089-098-099-ILZ025-026-034-035-MOZ009-010-250700- /O.CON.KDVN.WS.W.0001.110224T2200Z-110225T1200Z/ DES MOINES-VAN BUREN-LEE-HENDERSON-WARREN-HANCOCK-MCDONOUGH- SCOTLAND-CLARK- INCLUDING THE CITIES OF...BURLINGTON...KEOSAUQUA.... FORT MADISON...OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...MEMPHIS... KAHOKA 259 PM CST THU FEB 24 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST FRIDAY. * SNOW WILL BEGIN LATE THIS AFTERNOON...AND WILL CONTINUE THROUGH TONIGHT. SNOW WILL BE HEAVY AT TIMES ESPECIALLY THIS EVENING. THUNDER AND LIGHTNING ARE ALSO POSSIBLE. * SNOWFALL OF 6 TO 10 INCHES IS LIKELY. * WINDS WILL INCREASE TO 15 TO 25 MPH. * VISIBILITY WILL BE RESTRICTED TO UNDER 1/2 MILE AT TIMES DUE TO MODERATE TO HEAVY SNOW. * THE MAIN IMPACT WILL BE HEAVY SNOW...WITH THE WIND CAUSING SOME SIGNIFICANT DRIFTING AND SOME BLOWING OF THE SNOW OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS 6 INCHES OR MORE OF SNOW IS EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS...SO ONLY TRAVEL IN AN EMERGENCY AND TAKE YOUR WINTER SURVIVAL KIT. && $$ IAZ063>068-076>078-ILZ007-009-015>018-024-250700- /O.CON.KDVN.WW.Y.0005.110225T0000Z-110225T1200Z/ IOWA-JOHNSON-CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON- LOUISA-CARROLL-WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM- MERCER- INCLUDING THE CITIES OF...MARENGO...IOWA CITY...TIPTON... CLINTON...MUSCATINE...BETTENDORF...DAVENPORT...SIGOURNEY... WASHINGTON...WAPELLO...MOUNT CARROLL...STERLING...ROCK FALLS... MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...HENNEPIN...ALEDO 259 PM CST THU FEB 24 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST FRIDAY. * SNOW WILL BEGIN LATE THIS AFTERNOON OR EARLY THIS EVENING... AND WILL CONTINUE TO FALL THROUGH TONIGHT. * SNOWFALL OF 3 TO 6 INCHES IS LIKELY. * WINDS WILL INCREASE TO 15 TO 25 MPH. * VISIBILITY WILL BE RESTRICTED TO UNDER 1/2 MILE AT TIMES DUE TO MODERATE TO HEAVY SNOW. * THE MAIN IMPACT WILL BE SIGNIFICANT SNOW...WITH THE WIND CAUSING SOME SIGNIFICANT DRIFTING AND SOME BLOWING OF THE SNOW OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLICK...SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND BE CAREFUL WHILE DRIVING. && $$ HAASE
180 WWUS43 KDVN 250100 WSWDVN URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE QUAD CITIES IA IL 700 PM CST THU FEB 24 2011 ...ACCUMULATING SNOW DEVELOPING TONIGHT... .A WINTER STORM WILL BRING SNOW TO THE AREA TONIGHT. DRIER AIR ON LOW LEVEL NORTHEAST WINDS HAS HELD THE SNOW AT BAY FOR THE TIME BEING FOR NEARLY ALL BUT PORTIONS OF EAST CENTRAL AND SOUTHEAST IOWA... AND NORTHEAST MISSOURI. IN ADDITION... THE MAIN SURGE OF MOISTURE WITH THIS STORM CONTINUES SLIDING EASTWARD THROUGH SOUTHERN ILLINOIS... AND AWAY FROM THE REGION. THESE TWO FACTORS...COMBINED WITH TEMPERATURES JUST ABOVE THE FREEZING MARK IN MANY AREAS RESULTING IN MELT AND COMPACTION OF THE SNOW...WILL RESULT IN LOWER SNOW TOTALS. NONETHELESS...MUCH OF THE AREA WILL SEE A PERIOD OF MODERATE TO LOCALLY HEAVY SNOW FOR A TIME THIS EVENING AND OVERNIGHT...WITH SNOWFALL RATES APPROACHING AN INCH AN HOUR IN SOME LOCATIONS. IN GENERAL...SNOWFALL AMOUNTS WILL RANGE FROM 1 TO 3 INCHES ALONG AND NORTH OF INTERSTATE 80... WITH AMOUNTS OF 2 TO 4 INCHES SOUTH OF INTERSTATE 80 TO NEAR HIGHWAY 34. ALONG AND ESPECIALLY SOUTH OF HIGHWAY 34 IS WHERE THE HEAVIEST SNOWFALL AMOUNTS WILL BE FOUND...GENERALLY RANGING FROM 4 TO 6 INCHES. WINDS WILL INCREASE TO 15 TO 25 MPH TONIGHT... RESULTING IN SOME AREAS OF BLOWING AND DRIFTING. ILZ007-250200- /O.CAN.KDVN.WW.Y.0005.000000T0000Z-110225T1200Z/ CARROLL- INCLUDING THE CITY OF...MOUNT CARROLL 700 PM CST THU FEB 24 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN QUAD CITIES HAS CANCELLED THE WINTER WEATHER ADVISORY. SNOW IS EXPECTED TO DEVELOP BY LATE EVENING AND CONTINUE FOR A WHILE OVERNIGHT. HOWEVER...SNOWFALL AMOUNTS ARE EXPECTED TO REMAIN BELOW ADVISORY CRITERIA. $$ IAZ087>089-098-099-ILZ025-026-034-035-MOZ009-010-251100- /O.CON.KDVN.WS.W.0001.000000T0000Z-110225T1200Z/ JEFFERSON-HENRY IA-DES MOINES-VAN BUREN-LEE-HENDERSON-WARREN- HANCOCK-MCDONOUGH-SCOTLAND-CLARK- INCLUDING THE CITIES OF...FAIRFIELD...MOUNT PLEASANT... BURLINGTON...KEOSAUQUA....FORT MADISON...OQUAWKA...MONMOUTH... CARTHAGE...MACOMB...MEMPHIS...KAHOKA 700 PM CST THU FEB 24 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST FRIDAY. * SNOW WILL CONTINUE TO DEVELOP THIS EVENING AND PERSIST INTO THE OVERNIGHT BEFORE TAPERING TO FLURRIES LATE. * SNOWFALL OF 4 TO 6 INCHES IS LIKELY. * WINDS WILL INCREASE TO 15 TO 25 MPH. * SNOWFALL RATES WILL BE MODERATE TO HEAVY AT TIMES CAUSING REDUCED VISIBILITIES. THIS ALONG WITH ROADS BECOMING SNOW COVERED AND SLICK...WILL MAKE TRAVEL HAZARDOUS TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS 6 INCHES OR MORE OF SNOW IS EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS...SO ONLY TRAVEL IN AN EMERGENCY AND TAKE YOUR WINTER SURVIVAL KIT. && $$ IAZ063>068-076>078-ILZ009-015>018-024-251100- /O.CON.KDVN.WW.Y.0005.000000T0000Z-110225T1200Z/ IOWA-JOHNSON-CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON- LOUISA-WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER- INCLUDING THE CITIES OF...MARENGO...IOWA CITY...TIPTON... CLINTON...MUSCATINE...BETTENDORF...DAVENPORT...SIGOURNEY... WASHINGTON...WAPELLO...STERLING...ROCK FALLS...MOLINE... ROCK ISLAND...KEWANEE...PRINCETON...HENNEPIN...ALEDO 700 PM CST THU FEB 24 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST FRIDAY. * SNOW WILL DEVELOP MID TO LATE EVENING... AND PERSIST OVERNIGHT BEFORE TAPERING TO FLURRIES LATE. * SNOWFALL OF 1 TO 4 INCHES IS LIKELY...WITH THE HIGHER TOTALS SOUTH OF INTERSTATE 80. * WINDS WILL INCREASE TO 15 TO 25 MPH. * SNOWFALL RATES WILL BE MODERATE TO HEAVY AT TIMES CAUSING REDUCED VISIBILITIES. THIS ALONG WITH ROADS BECOMING SNOW COVERED AND SLICK...WILL MAKE TRAVEL HAZARDOUS LATE THIS EVENING AND OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLICK...SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND BE CAREFUL WHILE DRIVING. && $$
644 WWUS43 KDVN 250249 WSWDVN URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE QUAD CITIES IA IL 849 PM CST THU FEB 24 2011 ...ACCUMULATING SNOW TONIGHT... .A BAND OF MODERATE TO HEAVY SNOW EXTENDING FROM WEST OF CLINTON TO NEAR IOWA CITY AND INTO SOUTHEAST IOWA...WILL CONTINUE TO SHIFT SOUTHEAST ACROSS THE AREA LATE THIS EVENING INTO THE OVERNIGHT. SNOWFALL RATES OF AN INCH OR SO AN HOUR WILL BE COMMON FOR A FEW HOURS...RESULTING IN SNOWFALL AMOUNTS OF GENERALLY 2 TO 4 INCHES ACROSS MUCH OF THE ADVISORY AREA...WITH LOCALLY HIGHER AMOUNTS OF 5 INCHES POSSIBLE FROM NEAR A LINE FROM FAIRFIELD TO WASHINGTON TO WEST LIBERTY. WINDS WILL CONTINUE TO INCREASE TO 15 TO 25 MPH TONIGHT... RESULTING IN SOME LOCALIZED AREAS OF BLOWING AND DRIFTING. IAZ087>089-098-099-ILZ025-026-034-035-MOZ009-010-251200- /O.CAN.KDVN.WS.W.0001.000000T0000Z-110225T1200Z/ /O.EXA.KDVN.WW.Y.0005.000000T0000Z-110225T1200Z/ JEFFERSON-HENRY IA-DES MOINES-VAN BUREN-LEE-HENDERSON-WARREN- HANCOCK-MCDONOUGH-SCOTLAND-CLARK- INCLUDING THE CITIES OF...FAIRFIELD...MOUNT PLEASANT... BURLINGTON...KEOSAUQUA....FORT MADISON...OQUAWKA...MONMOUTH... CARTHAGE...MACOMB...MEMPHIS...KAHOKA 849 PM CST THU FEB 24 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST FRIDAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 6 AM CST FRIDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. * A BAND OF MODERATE TO HEAVY SNOW WILL CONTINUE TO MOVE THROUGH LATE THIS EVENING INTO THE OVERNIGHT BEFORE TAPERING TO FLURRIES. * SNOWFALL OF 2 TO 4 INCHES IS LIKELY. * WINDS WILL INCREASE TO 15 TO 25 MPH. * SNOWFALL RATES WILL BE MODERATE TO HEAVY AT TIMES CAUSING REDUCED VISIBILITIES. THIS ALONG WITH ROADS BECOMING SNOW COVERED AND SLICK...WILL MAKE TRAVEL HAZARDOUS LATE THIS EVENING AND OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLICK...SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND BE CAREFUL WHILE DRIVING. && $$ ILZ009-016>018-251200- /O.CAN.KDVN.WW.Y.0005.000000T0000Z-110225T1200Z/ /O.NEW.KDVN.WW.Y.0006.110225T0600Z-110225T1200Z/ WHITESIDE-HENRY IL-BUREAU-PUTNAM- INCLUDING THE CITIES OF...STERLING...ROCK FALLS...KEWANEE... PRINCETON...HENNEPIN 849 PM CST THU FEB 24 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST FRIDAY... THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST FRIDAY. * A BAND OF MODERATE TO LOCALLY HEAVY SNOW WILL MOVE ACROSS THE AREA OVERNIGHT BEFORE TAPERING TO FLURRIES LATE. * SNOWFALL OF 2 TO 4 INCHES IS LIKELY. * WINDS WILL INCREASE TO 15 TO 25 MPH. * SNOWFALL RATES WILL BE MODERATE TO HEAVY AT TIMES CAUSING REDUCED VISIBILITIES. THIS ALONG WITH ROADS BECOMING SNOW COVERED AND SLICK...WILL MAKE TRAVEL HAZARDOUS LATE THIS EVENING AND OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLICK...SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND BE CAREFUL WHILE DRIVING. && $$ IAZ063-250400- /O.CAN.KDVN.WW.Y.0005.000000T0000Z-110225T1200Z/ IOWA- INCLUDING THE CITY OF...MARENGO 849 PM CST THU FEB 24 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN QUAD CITIES HAS CANCELLED THE WINTER WEATHER ADVISORY. SNOW WILL CONTINUE TO TAPER OFF TO FLURRIES LATE THIS EVENING WITH LITTLE IN THE WAY OF ADDITIONAL ACCUMULATION. THEREFORE THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED. $$ IAZ064>068-076>078-ILZ015-024-251200- /O.CON.KDVN.WW.Y.0005.000000T0000Z-110225T1200Z/ JOHNSON-CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA- ROCK ISLAND-MERCER- INCLUDING THE CITIES OF...IOWA CITY...TIPTON...CLINTON... MUSCATINE...BETTENDORF...DAVENPORT...SIGOURNEY...WASHINGTON... WAPELLO...MOLINE...ROCK ISLAND...ALEDO 849 PM CST THU FEB 24 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST FRIDAY. * A BAND OF MODERATE TO HEAVY SNOW WILL CONTINUE TO MOVE ACROSS THE AREA THIS EVENING INTO THE OVERNIGHT BEFORE TAPERING TO FLURRIES. * SNOWFALL OF 2 TO 4 INCHES IS LIKELY...WITH LOCALLY HIGHER AMOUNTS AROUND 5 INCHES POSSIBLE IN ROUGHLY A 20 MILE CORRIDOR FROM NEAR WASHINGTON TO WEST LIBERTY. * WINDS WILL INCREASE TO 15 TO 25 MPH. * SNOWFALL RATES WILL BE MODERATE TO HEAVY AT TIMES CAUSING REDUCED VISIBILITIES. THIS ALONG WITH ROADS BECOMING SNOW COVERED AND SLICK...WILL MAKE TRAVEL HAZARDOUS THIS EVENING AND OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLICK...SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND BE CAREFUL WHILE DRIVING. && $$
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 Quad Cities, IA wrote its last area forecast discussion before this winter storm warning went out at Feb 23, 3:35 PM CST, 11 hours 45 minutes earlier.
Area forecast discussion, Feb 23, 3:35 PM CST, 11 hours 45 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE QUAD CITIES IA IL 335 PM CST WED FEB 23 2011 .SYNOPSIS... TROUGH IN WESTERN IA WILL MOVE ACROSS THE CWA TONIGHT. SCATTERED RAIN/SNOW SHOWERS CURRENTLY PUSHING ACROSS THE CWA. CURRENT TEMPERATURES IN THE 30S ACROSS THE DVN CWA...WITH 70S IN THE SOUTHERN PLAINS. COLDER AIR DIVING INTO THE NORTHERN PLAINS WITH TEMPS THERE ONLY IN THE TEENS. ..HAASE.. && .SHORT TERM...TONIGHT AND THURSDAY... FORECAST FOCUS ON WALKING OUT THE PRECIP THIS EVENING AND WALKING IN THE NEXT STORM SYSTEM THURSDAY. TONIGHT...SCATTERED LIGHT RAIN AND SNOW SHOWERS SHOULD END EARLY THIS EVENING. JUST ENOUGH EVAPORATIVE COOLING IN THE DRIER LOW LEVELS TO CHANGE SOME OF THE RAIN TO SNOW. INVERSION TONIGHT SHOULD TRAP THE CLOUDS SO MOSTLY CLOUDY OR CLOUDY SKIES EXPECTED. 850 MB TEMPS A TAD COOLER BY MORNING SO MIN TEMPS SHOULD DROP INTO THE MID 20S TO AROUND 30. THURSDAY...CLOUDY DAY WITH AN INCREASING NORTHEAST WIND TO 20 TO 25 MPH WILL MAKE FOR A RATHER CHILLY DAY. MAX TEMPS MAINLY IN THE 30S. IMPRESSIVE TROUGH IN THE SOUTHERN ROCKIES WILL INDUCE CYCLOGENESIS IN THE SOUTHERN PLAINS WITH GULF MOISTURE RAPIDLY GETTING PULLED NORTHWARD ON A STRENGTHENING LOW LEVEL JET. OPERATIONAL MODELS SIMILAR IN BRINGING PRECIPITATION INTO OUR SOUTHERN CWA IN THE AFTERNOON. WILL HAVE LIKELY POPS FOR SOUTH OF HIGHWAY 34. WILL BRING A SLIGHT CHANCE AS FAR NORTH AS ABOUT I-80. ALL THE MODELS INDICATE 850 MB TEMPS BELOW 0C IN ALL OF MY CWA. FORECAST SOUNDINGS SUGGEST ALL SNOW BUT THE BOUNDARY TEMPS MAY WARM JUST ENOUGH TO KEEP IT A MIX OF RAIN AND SNOW IN THE AFTERNOON. EVEN IF IT WAS ALL SNOW IT SHOULD MELT ON CONTACT WITH TEMPS WELL IN THE 30S TO NEAR 40. WILL NEED TO MONITOR TEMP AND PRECIP TRENDS. ..HAASE.. .LONG TERM...THURSDAY NIGHT THROUGH NEXT WEDNESDAY... MAIN CONCERN FOR THE END OF THE WEEK WILL BE THE FAST MOVING SOUTHERN STREAM SYSTEM MOVING FROM THE SOUTHWESTERN U.S. INTO THE MISSISSIPPI RIVER VALLEY BY LATE THURSDAY NIGHT. THE OPERATIONAL MODELS ARE COMING INTO BETTER AGREEMENT WITH THE TRACK OF THE SYSTEM WITH THE 12Z ECMWF/GFS/NAM MOVING THE SURFACE LOW NORTHEAST FROM NORTHERN AR/SOUTHERN MO THURSDAY EVENING THROUGH THE OHIO RIVER VALLEY INTO OHIO/WEST VIRGINIA BY FRIDAY MORNING. WHERE THE MODELS SHOW THEIR BIGGEST DIFFERENCE IS THE QPF FIELDS WITH THE NAM BY FAR THE WETTEST PRODUCING OVER AN INCH OF LIQUID PRECIPITATION BETWEEN 00Z AND 12Z FRIDAY OVER OUR SOUTHEASTERN COUNTIES. THE GFS WAS ON THE OTHER END OF THE SCALE PRODUCING BETWEEN A QUARTER AND A HALF INCH FOR AN EVENT TOTAL WHILE THE ECMWF WAS AROUND ONE HALF INCH BY FRIDAY MORNING. FOR NOW WILL STAY CLOSE TO THE GFS/ECMWF QPF WITH NAM MOST LIKELY EXHIBITING IT/S WET BIAS WITH THIS SYSTEM. ANOTHER FACTOR THAT SHOULD IMPACT PRECIPITATION AMOUNTS WILL BE THE NORTHEAST TO EAST NORTHEAST FETCH OFF HIGH PRESSURE OVER MN AND WI. THIS WILL FEED DRY LOW LEVEL AIR INTO THE STORM THURSDAY EVENING WHICH SHOULD IMPACT PCPN AMOUNTS OVER EASTERN IOWA AND NORTHWESTERN ILLINOIS. TEMPERATURES BY THURSDAY EVENING SHOULD BE COLD ENOUGH FOR THE PRECIPITATION TO BE ALL SNOW WITH RATIOS IN THE 10 TO 13 TO ONE RANGE FROM SOUTH TO NORTH. THESE RATIOS WOULD SUPPORT SNOW AMOUNTS OF 1 TO 3 INCHES SOUTH OF LINE FROM NORTH OF FAIRFIELD THROUGH THE STERLING/ROCKFALLS AREA OF NORTHWEST IL. THE BULK OF THE SNOW SHOULD OCCUR THURSDAY NIGHT WITH SOME LINGERING LIGHT SNOW OR FLURRIES FRIDAY AS THE STORM PULLS AWAY. MID LEVEL ZONAL FLOW SETS UP OVER THE WESTERN U.S. BEHIND THIS SYSTEM WITH MODELS SHOWING SOME LIGHT OVERRUNNING TYPE SNOWS SPREADING IN FROM THE WEST FRIDAY AFTERNOON AND CONTINUING THROUGH SATURDAY NIGHT. THIS SHOULD RESULT IN A PROLONGED PERIOD OF LIGHT SNOW OR FLURRIES WITH SNOW ACCUMULATIONS OVER THE 24 TO 36 HOUR PERIOD OF AN INCH OR LESS. FOR EARLY NEXT WEEK THE LONG RANGE MODELS SHOW A SIGNIFICANT SYSTEM LIFTING OUT OF THE SOUTHWEST U.S. SUNDAY NIGHT AND MONDAY. THERE IS CONSIDERABLE DIFFERENCES IN THE TRACK AND TIMING OF THE STORM BETWEEN THE ECMWF AND GFS. THE GFS FAVOR A MORE NORTHWEST TRACK THROUGH NORTHWEST ILLINOIS SUNDAY NIGHT WHICH COULD BE A SIGNIFICANT RAIN EVENT. THE ECMWF EJECTS THE STORM THROUGH MO AND CENTRAL IL MONDAY MORNING SUGGESTING MORE SNOW THAN RAIN. FOR NOW WILL GO WITH A MIX OF RAIN/SNOW AND EVEN SOME FREEZING RAIN FROM SUNDAY INTO MONDAY. AFTER THIS SYSTEM MOVES THROUGH WILL GO WITH A MAINLY DRY FORECAST WITH RELATIVELY QUIET WEST NORTHWEST FLOW SETTING UP FOR MID WEEK. TEMPERATURES THROUGH THE FORECAST PERIOD SHOULD NEAR TO SLIGHTLY BELOW NORMAL WITH THE SPLIT FLOW KEEPING THE COLDER AIRMASS AT BAY TO OUR NORTH. ..DLF.. && .AVIATION... VFR CONDS REMAINDER OF THIS AFTERNOON AND TONIGHT WITH SCATTERED MVFR CIGS. WILL BRING IN MVFR CIGS ON THURSDAY WITH RAIN AND SNOW DEVELOPING ALONG AND SOUTH OF HIGHWAY 34. SOUTHEAST WINDS 10 TO 15 KNOTS REMAINDER OF THE AFTERNOON BECOMING NORTHWEST TO NORTH LESS THAN 10 KNOTS TONIGHT. THEN NORTHEAST 10 TO 15 KNOTS WITH GUSTS TO OVER 20 KNOTS ON THURSDAY. ..HAASE.. && .DVN WATCHES/WARNINGS/ADVISORIES... IA...NONE. IL...NONE. MO...NONE. && HAASE/DLF
Hazardous weather outlook, Feb 23, 9:14 PM CST, 6 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 914 PM CST WED FEB 23 2011 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-241100- BENTON IA-BUCHANAN IA-BUREAU IL-CARROLL IL-CEDAR IA-CLARK MO- CLINTON IA-DELAWARE IA-DES MOINES IA-DUBUQUE IA-HANCOCK IL- HENDERSON IL-HENRY IA-HENRY IL-IOWA IA-JACKSON IA-JEFFERSON IA- JO DAVIESS IL-JOHNSON IA-JONES IA-KEOKUK IA-LEE IA-LINN IA-LOUISA IA- MCDONOUGH IL-MERCER IL-MUSCATINE IA-PUTNAM IL-ROCK ISLAND IL- SCOTLAND MO-SCOTT IA-STEPHENSON IL-VAN BUREN IA-WARREN IL- WASHINGTON IA-WHITESIDE IL- 914 PM CST WED FEB 23 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL ILLINOIS...NORTHWEST ILLINOIS...WEST CENTRAL ILLINOIS...EAST CENTRAL IOWA...NORTHEAST IOWA...SOUTHEAST IOWA AND NORTHEAST MISSOURI. .DAY ONE...TONIGHT DENSE FOG WILL REDUCE VISIBILITIES TO ONE QUARTER MILE OR LESS AT TIMES THROUGH MIDNIGHT. AFTER MIDNIGHT...THE FOG WILL DISSIPATE AS A COLD FRONT AND DRIER AIR SWEEP ACROSS THE OUTLOOK AREA. SOME AREA RIVERS ARE EXPERIENCING FLOODING. PLEASE SEE THE LATEST FLOOD STATEMENTS AND FLOOD WARNINGS FOR DETAILS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A WINTER STORM SYSTEM WILL LOOK TO MOVE EAST ACROSS SOUTHERN MISSOURI AND UP THE OHIO RIVER VALLEY THURSDAY INTO FRIDAY. THIS SYSTEM WILL LIKELY PRODUCE SNOW ACROSS MUCH OF THE OUTLOOK AREA THURSDAY NIGHT... WITH AT LEAST SOME LIGHT ACCUMULATIONS POSSIBLE BY FRIDAY MORNING. LATEST INDICATIONS SUGGEST THAT AREAS ALONG AND SOUTH OF INTERSTATE 80 MAY RECEIVE 1 TO 3 INCHES OF SNOWFALL BY FRIDAY MORNING...WITH LOCALLY HIGHER AMOUNTS SOUTH OF A LINE FROM KEOSAUQUA IOWA...TO MONMOUTH ILLINOIS. NORTH WINDS OF 15 TO 25 MPH WILL PRODUCE SOME DRIFTING OF ANY SNOW THAT FALLS. THE EXACT TRACK OF THIS SYSTEM IS STILL SOMEWHAT UNCERTAIN...AND ANY DEVIATION NORTH OR SOUTH FROM THE CURRENTLY EXPECTED TRACK MAY LEAD TO MORE SNOW AMOUNTS...OR LESS. STAY TUNED FOR LATER FORECASTS AND STATEMENTS CONCERNING THIS THURSDAY NIGHT STORM SYSTEM. MORE SNOW WILL BE POSSIBLE LATE FRIDAY INTO SATURDAY AS ANOTHER WEATHER SYSTEM MOVES ACROSS PORTIONS OF THE MIDWEST. SNOW AMOUNTS WITH THIS WEEKEND SYSTEM ARE UNCERTAIN AT THIS TIME...BUT THE LATEST INDICATIONS SUGGEST THAT LIGHT SNOW ACCUMULATIONS OF A COUPLE OF INCHES ARE POSSIBLE. AN ACTIVE WEATHER PATTERN WILL LEAD TO ANOTHER POTENTIALLY MAJOR STORM SYSTEM WHICH COULD PRODUCE SIGNIFICANT AMOUNTS OF RAIN OR SNOW IN THE OUTLOOK AREA SUNDAY NIGHT INTO MONDAY. THE STORM TRACK AND AMOUNTS OF EACH TYPE OF PRECIPITATION WITH THIS SYSTEM IS UNCERTAIN AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED TONIGHT.
In the hours before
Special weather statement, Feb 23, 9:53 PM CST, 5 hours 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 953 PM CST WED FEB 23 2011 IAZ042-053-054-065-066-068-ILZ001-002-007-009-015>018-240600- DUBUQUE-JONES-JACKSON-CEDAR-CLINTON-SCOTT-JO DAVIESS-STEPHENSON- CARROLL-WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM- INCLUDING THE CITIES OF...DUBUQUE...ANAMOSA...MAQUOKETA... TIPTON...CLINTON...BETTENDORF...DAVENPORT...GALENA...FREEPORT... MOUNT CARROLL...STERLING...ROCK FALLS...MOLINE...ROCK ISLAND... KEWANEE...PRINCETON...HENNEPIN 953 PM CST WED FEB 23 2011 ...PATCHY DENSE FOG AND AREAS OF DRIZZLE WITH SCATTERED SLICK SPOTS THIS EVENING... AREAS OF FOG...LOCALLY DENSE REDUCING VISIBILITIES TO ONE QUARTER MILE OR LESS... WILL PERSIST THROUGH MIDNIGHT BEFORE DISSIPATING AS A COLD FRONT SWEEPS ACROSS THE REGION. IN ADDITION TO THE FOG... PATCHY DRIZZLE WILL BE POSSIBLE. AS TEMPERATURES SLOWLY DROP TO THE FREEZING MARK IN SOME LOCATIONS ALONG AND NORTH OF INTERSTATE 80...A LIGHT GLAZING OF ICE WILL BE POSSIBLE... ESPECIALLY ON BRIDGES AND OVERPASSES. ALSO... WET PAVEMENT DUE TO THE RECENT RAINS MAY FREEZE ON AREA ROADWAYS. IF YOU WILL BE TRAVELING THIS EVENING... SLOW DOWN AND REMAIN ALERT FOR RAPID CHANGES IN VISIBILITY. MOTORISTS ALONG AND NORTH OF INTERSTATE 80 WILL NEED TO EXERCISE CAUTION FOR SLICK SPOTS FROM BLACK ICE AND A VERY LIGHT GLAZE FROM FREEZING DRIZZLE... ESPECIALLY ON BRIDGES AND OVERPASSES. IAZ063-064-067-076>078-087>089-098-099-ILZ024>026-034-035-MOZ009- 010-240600- IOWA-JOHNSON-MUSCATINE-KEOKUK-WASHINGTON-LOUISA-JEFFERSON- HENRY IA-DES MOINES-VAN BUREN-LEE-MERCER-HENDERSON-WARREN-HANCOCK- MCDONOUGH-SCOTLAND-CLARK- INCLUDING THE CITIES OF...MARENGO...IOWA CITY...MUSCATINE... SIGOURNEY...WASHINGTON...WAPELLO...FAIRFIELD...MOUNT PLEASANT... BURLINGTON...KEOSAUQUA....FORT MADISON...ALEDO...OQUAWKA... MONMOUTH...CARTHAGE...MACOMB...MEMPHIS...KAHOKA 953 PM CST WED FEB 23 2011 ...AREAS OF DENSE FOG THIS EVENING... LIGHT WINDS AND ABUNDANT LOW LEVEL MOISTURE HAS ALLOWED AREAS OF DENSE FOG TO FORM THIS EVENING. THE FOG WILL REDUCE VISIBILITIES TO LESS THAN ONE QUARTER MILE... AND TO NEAR ZERO IN A FEW SPOTS. THE FOG IS EXPECTED TO DISSIPATE AFTER MIDNIGHT...AS A COLD FRONT AND DRIER AIR SWEEP THROUGH THE REGION. IF YOU WILL BE TRAVELING THIS EVENING... SLOW DOWN AND BE PREPARED FOR RAPID CHANGES IN VISIBILITY.
Special weather statement, Feb 23, 11:50 PM CST, 3 hours 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 1150 PM CST WED FEB 23 2011 IAZ054-065-066-068-ILZ001-002-007-009-015>018-240800- JACKSON-CEDAR-CLINTON-SCOTT-JO DAVIESS-STEPHENSON-CARROLL- WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM- INCLUDING THE CITIES OF...MAQUOKETA...TIPTON...CLINTON... BETTENDORF...DAVENPORT...GALENA...FREEPORT...MOUNT CARROLL... STERLING...ROCK FALLS...MOLINE...ROCK ISLAND...KEWANEE... PRINCETON...HENNEPIN 1150 PM CST WED FEB 23 2011 ...PATCHY DENSE FOG AND AREAS OF DRIZZLE WITH SCATTERED SLICK SPOTS INTO THE EARLY MORNING... AREAS OF FOG...LOCALLY DENSE REDUCING VISIBILITIES TO ONE QUARTER MILE OR LESS... WILL PERSIST THROUGH 1 AM BEFORE DISSIPATING AS A COLD FRONT SWEEPS ACROSS THE REGION. IN ADDITION TO THE FOG... PATCHY DRIZZLE WILL BE POSSIBLE. AS TEMPERATURES SLOWLY DROP TO THE FREEZING MARK IN SOME LOCATIONS ALONG AND NORTH OF INTERSTATE 80...A LIGHT GLAZING OF ICE WILL BE POSSIBLE... ESPECIALLY ON BRIDGES AND OVERPASSES. ALSO... WET PAVEMENT DUE TO THE RECENT RAINS MAY FREEZE ON AREA ROADWAYS. IF YOU WILL BE TRAVELING INTO THE EARLY MORNING... SLOW DOWN AND REMAIN ALERT FOR RAPID CHANGES IN VISIBILITY. MOTORISTS ALONG AND NORTH OF INTERSTATE 80 WILL NEED TO EXERCISE CAUTION FOR SLICK SPOTS FROM BLACK ICE AND A VERY LIGHT GLAZE FROM FREEZING DRIZZLE... ESPECIALLY ON BRIDGES AND OVERPASSES. IAZ063-064-067-076>078-087>089-098-099-ILZ024>026-034-035-MOZ009- 010-240800- IOWA-JOHNSON-MUSCATINE-KEOKUK-WASHINGTON-LOUISA-JEFFERSON- HENRY IA-DES MOINES-VAN BUREN-LEE-MERCER-HENDERSON-WARREN-HANCOCK- MCDONOUGH-SCOTLAND-CLARK- INCLUDING THE CITIES OF...MARENGO...IOWA CITY...MUSCATINE... SIGOURNEY...WASHINGTON...WAPELLO...FAIRFIELD...MOUNT PLEASANT... BURLINGTON...KEOSAUQUA....FORT MADISON...ALEDO...OQUAWKA... MONMOUTH...CARTHAGE...MACOMB...MEMPHIS...KAHOKA 1150 PM CST WED FEB 23 2011 ...AREAS OF DENSE FOG INTO THE EARLY MORNING... AREAS OF DENSE FOG WILL PERSIST THROUGH 1 AM. THE FOG WILL REDUCE VISIBILITIES TO LESS THAN ONE QUARTER MILE... AND TO NEAR ZERO IN A FEW SPOTS. THE FOG IS EXPECTED TO DISSIPATE BETWEEN 1 AM AND 3 AM... AS A COLD FRONT AND DRIER AIR SWEEP THROUGH THE REGION. IF YOU WILL BE TRAVELING INTO THE EARLY MORNING... SLOW DOWN AND BE PREPARED FOR POOR VISIBILITY AT TIMES.
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 3:20 AM CST | Winter Weather Advisory | DVN | Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson and 8 more | 26 hr |
Nearby
Winter Storm Warnings in Iowa, 2011Winter Storm Warnings in Illinois, 2011Winter Storm Warnings in Missouri, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.