Alert archive / Iowa / Winter Storm Warnings in 2009

Winter Storm Warning 3, NWS Quad Cities, IA

March 28, 200917 counties in Iowa; 13 counties in Illinois; Clark County, Scotland County, Missouri

NWS Quad Cities, IA issued this winter storm warning at Mar 28, 2009, 3:33 AM CDT for 17 counties in Iowa; 13 counties in Illinois; Clark County, Scotland County, Missouri. It took effect at Mar 28, 2009, 4:00 PM CDT. It was in force for 12 hr. 39 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 28, 2009, 3:33 AM CDT (08:33 UTC)
In effect from
Mar 28, 2009, 4:00 PM CDT
Expired
Mar 29, 2009, 3:35 AM CDT
In force
12 hr
Issued by
NWS Quad Cities, IA
All 32 counties

Cedar County, IA, Clinton County, IA, Des Moines County, IA, Dubuque County, IA, Henry County, IA, Jackson County, IA, Jefferson County, IA, Johnson County, IA, Jones County, IA, Keokuk County, IA, Lee County, IA, Linn County, IA, Louisa County, IA, Muscatine County, IA, Scott County, IA, Van Buren County, IA, Washington County, IA, Bureau County, IL, Carroll County, IL, Hancock County, IL, Henderson County, IL, Henry County, IL, Jo Daviess County, IL, McDonough County, IL, Mercer County, IL, Putnam County, IL, Rock Island County, IL, Stephenson County, IL, Warren County, IL, Whiteside County, IL, Clark County, MO, Scotland County, MO

The radar

The Quad Cities radar (KDVN), 39 km from the middle of the area, began a volume at 08:39 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

TimeReportWhereRemark
Mar 28, 5:04 PM CDTSLEET 11 Wsw Sherrard, ILSOME SLEET ALSO. LIGHT SNOW AND SLEET MIXTURE CONTINUES.
Mar 28, 5:04 PM CDTSNOW 11 Wsw Sherrard, ILSOME SLEET ALSO. LIGHT SNOW AND SLEET MIXTURE CONTINUES.
Mar 28, 5:04 PM CDTSNOW 13 Sw Cedar Rapids, IAMODERATE SNOW CONTINUES. MOST ROADS SNOW/SLUSH COVERED.
Mar 28, 5:37 PM CDTSNOW 1Sherrard, ILMIX OF SNOW AND SLEET
Mar 28, 5:44 PM CDTSNOW 2W Cantril, IANO PRECIPITATION OCCURRING AT TIME OF REPORT
Mar 28, 5:47 PM CDTSLEET 0.54 Sse Winslow, IL
Mar 28, 5:47 PM CDTSNOW 1.51 Sw Davenport, IA
Mar 28, 6:04 PM CDTSNOW 1Wnw Wheatland, IAROADS ARE SNOW AND ICE COVERED
Mar 28, 6:08 PM CDTSNOW 1.5Eldridge, IAHUGE SNOWFLAKES AT TIME OF REPORT
Mar 28, 6:17 PM CDTSNOW 1.52 W Cedar Rapids, IA
Mar 28, 6:20 PM CDTSNOW 1Freeport, ILMODERATE TO HEAVY SNOW AT TIME OF REPORT
Mar 28, 6:20 PM CDTSNOW 1.5Muscatine, IA
Mar 28, 6:29 PM CDTSNOW 1.53 Nne Keosauqua, IA
Mar 28, 6:56 PM CDTSNOW 3Brighton, IAMIX OF LIGHT SNOW AND SLEET AT TIME OF REPORT
Mar 28, 7:00 PM CDTSNOW 1.8Cedar Rapids, IANEAR 29TH STREET AND 1ST AVE NE. STILL SNOWING
Mar 28, 7:09 PM CDTSNOW 2Charlotte, IASNOW AND SLEET MIX AT TIME OF REPORT
Mar 28, 7:15 PM CDTSNOW 213 Nw Medill, MO
Mar 28, 7:24 PM CDTSNOW 13 Nnw Cedar Rapids, IAMODERATE SNOW AT TIME OF REPORT
Mar 28, 7:26 PM CDTSNOW 4.5Fairfield, IASTILL SNOWING
Mar 28, 7:30 PM CDTSNOW 32 W Cedar Rapids, IA
Mar 28, 7:32 PM CDTSNOW 2Cedar Rapids, IACHERRY HILL AREA. STILL SNOWING. ROADS ARE SNOW COVERED.
Mar 28, 7:37 PM CDTSNOW 31 Ese Hanover, ILSTILL SNOWING
Mar 28, 7:58 PM CDTSNOW 41 Sse Cedar Rapids, IAMODERATE TO HEAVY SNOW STILL FALLING
Mar 28, 8:07 PM CDTHEAVY SLEET 0.5Cordova, ILTHE SLEET ACCUMULATION OCCURRED LATE THIS AFTERNOON. JUST LIGHT SLEET FALLING NOW.
Mar 28, 8:07 PM CDTSNOW 11 W Cambridge, IL
Mar 28, 8:07 PM CDTSNOW 3Cedar Rapids, IAMODERATE SNOW AT TIME OF REPORT.
Mar 28, 8:10 PM CDTSNOW 2.2Nnw Springville, IA
Mar 28, 8:29 PM CDTSNOW 2.53 Nw Mount Vernon, IASTILL MODERATE SNOW.
Mar 28, 8:30 PM CDTSNOW 2.83 E Cedar Rapids, IASTILL SNOWING.
Mar 28, 8:38 PM CDTSNOW 4.52 W Cedar Rapids, IA
Mar 28, 8:46 PM CDTSNOW 34 Wnw Dubuque, IA
Mar 28, 8:54 PM CDTSNOW 1New Windsor, IL
Mar 28, 9:00 PM CDTSNOW 1E Solon, IASTILL SNOWING
Mar 28, 9:05 PM CDTSNOW 23 Nne Downing, MO
Mar 28, 9:05 PM CDTSNOW 3Lowden, IAMIX OF FREEZING RAIN AND SLEET AT TIME OF REPORT
Mar 28, 9:30 PM CDTSNOW 3.5Cedar Rapids, IAAT KCRG.
Mar 28, 10:20 PM CDTSNOW 3Lena, IL
Mar 28, 10:32 PM CDTSNOW 3Dubuque, IA
Mar 28, 10:57 PM CDTSNOW 5Cedar Rapids, IA

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 8.6 hours before the alert went out and 45 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.

Skew-T log-pSkew-T log-p diagram, Davenport, at 00:00Z on 2009-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2009-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1793 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS43 KDVN 280833
WSWDVN

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
333 AM CDT SAT MAR 28 2009

...HEAVY SNOW EXPECTED SATURDAY AND SATURDAY NIGHT...

.AN INTENSE EARLY SPRING STORM SYSTEM WILL TRACK FROM TEXAS TO
NORTHERN INDIANA TODAY AND TONIGHT BRINGING A BAND OF 4 TO 8
INCHES OF HEAVY WET SNOW TO PORTIONS OF THE REGION.

IAZ054-065>068-077-078-087>089-098-099-ILZ001-002-007-009-015>018-
024>026-034-035-MOZ009-010-281645-
/O.UPG.KDVN.WS.A.0003.090328T1800Z-090329T1200Z/
/O.NEW.KDVN.WS.W.0003.090328T1800Z-090329T1500Z/
JACKSON-CEDAR-CLINTON-MUSCATINE-SCOTT-WASHINGTON-LOUISA-JEFFERSON-
HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON-
WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
INCLUDING THE CITIES OF...MAQUOKETA...TIPTON...CLINTON...
MUSCATINE...BETTENDORF...DAVENPORT...WASHINGTON...WAPELLO...
FAIRFIELD...MOUNT PLEASANT...BURLINGTON...KEOSAUQUA....
FORT MADISON...GALENA...FREEPORT...MOUNT CARROLL...STERLING...
ROCK FALLS...MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...
HENNEPIN...ALEDO...OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...
MEMPHIS...KAHOKA
333 AM CDT SAT MAR 28 2009

...WINTER STORM WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO
10 AM CDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN QUAD CITIES HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 10 AM CDT SUNDAY. THIS WARNING REPLACES THE WINTER
STORM WATCH.

RAIN WILL DEVELOP THIS MORNING SOUTH OF INTERSTATE 80 AND GRADUALLY
SPREAD TO THE NORTHEAST DURING THE DAY. RAIN WILL QUICKLY BECOME
MIXED WITH SNOW...AND POSSIBLY SLEET AT TIMES THROUGH THE
AFTERNOON HOURS. IT WILL BECOME ALL SNOW BY LATE AFTERNOON...WITH
HEAVY WET SNOW CONTINUING INTO SATURDAY NIGHT. INITIALLY THE SNOW
WILL MELT BUT ACCUMULATING SNOW SHOULD BEGIN BY LATE
AFTERNOON...AND CONTINUE INTO SATURDAY NIGHT. SNOWFALL AMOUNTS ARE
LIKELY TO VARY ACROSS THE AREA...BUT CURRENT INDICATIONS SUGGEST
THAT A BAND OF 4 TO 8 INCHES IS LIKELY OVER PORTIONS OF THE WATCH
AREA BY THE TIME THE SNOW ENDS SUNDAY MORNING. LOCALLY HIGHER
AMOUNTS MAY OCCUR IF THUNDER-SNOWS DEVELOP. STRONG NORTHERLY WINDS
AT 20 TO 35 MPH MAY PRODUCE NEAR WHITEOUT CONDITIONS AT TIMES
DURING THE PERIODS OF HEAVIER SNOWFALL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS 6 TO 7 INCHES OR MORE
OF SNOW FALLING AT INTENSE RATES OF 1-2 INCHES PER HOUR...IS
EXPECTED. THIS WILL MAKE TRAVEL VERY DANGEROUS OR IMPOSSIBLE...SO
ONLY TRAVEL IN AN EMERGENCY AND TAKE YOUR WINTER SURVIVAL KIT.

&&

$$

IAZ042-053-281645-
/O.UPG.KDVN.WS.A.0003.090328T1800Z-090329T1200Z/
/O.NEW.KDVN.WW.Y.0008.090328T1800Z-090329T1500Z/
DUBUQUE-JONES-
INCLUDING THE CITIES OF...DUBUQUE...ANAMOSA
333 AM CDT SAT MAR 28 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO
10 AM CDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN QUAD CITIES HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 10 AM CDT SUNDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

RAIN WILL DEVELOP THIS MORNING SOUTH OF INTERSTATE 80 AND
GRADUALLY SPREAD TO THE NORTHEAST DURING THE DAY. RAIN WILL
QUICKLY BECOME MIXED WITH SNOW...AND BECOME ALL SNOW BY LATE
AFTERNOON...WITH HEAVY WET SNOW CONTINUING INTO SATURDAY NIGHT.
INITIALLY THE SNOW WILL MELT BUT ACCUMULATING SNOW SHOULD BEGIN BY
LATE AFTERNOON...AND CONTINUE INTO SATURDAY NIGHT. SNOWFALL
AMOUNTS ARE LIKELY TO VARY ACROSS THE AREA...BUT CURRENT
INDICATIONS SUGGEST THAT 4 TO 6 INCHES IS LIKELY ALONG A LINE FROM
FAIRFIELD TO DUBUQUE IOWA...WITH AMOUNTS TAPERING TO AROUND 2
INCHES NEAR INDEPENDENCE IOWA. STRONG NORTHERLY WINDS AT 20 TO 35
MPH MAY PRODUCE NEAR WHITEOUT CONDITIONS AT TIMES DURING THE
PERIODS OF HEAVIER SNOWFALL.

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.

&&

$$

IAZ040-041-051-052-063-064-076-281645-
/O.NEW.KDVN.WW.Y.0008.090328T1800Z-090329T1500Z/
BUCHANAN-DELAWARE-BENTON-LINN-IOWA-JOHNSON-KEOKUK-
INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...VINTON...
CEDAR RAPIDS...MARENGO...IOWA CITY...SIGOURNEY
333 AM CDT SAT MAR 28 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO
10 AM CDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN QUAD CITIES HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 10 AM CDT SUNDAY.

RAIN WILL DEVELOP THIS MORNING SOUTH OF INTERSTATE 80 AND
GRADUALLY SPREAD TO THE NORTHEAST DURING THE DAY. THE
RAIN WILL QUICKLY BECOME MIXED WITH SNOW...AND BECOME ALL SNOW BY
LATE AFTERNOON...WITH HEAVY WET SNOW CONTINUING INTO SATURDAY
NIGHT. INITIALLY THE SNOW WILL MELT BUT ACCUMULATING SNOW SHOULD
BEGIN BY LATE AFTERNOON...AND CONTINUE INTO SATURDAY NIGHT.
SNOWFALL AMOUNTS ARE LIKELY TO VARY ACROSS THE AREA...BUT CURRENT
INDICATIONS SUGGEST THAT 4 TO 6 INCHES IS LIKELY ALONG A LINE FROM
FAIRFIELD TO DUBUQUE IOWA...WITH AMOUNTS TAPERING TO AROUND 2
INCHES NEAR INDEPENDENCE IOWA. STRONG NORTHERLY WINDS AT 20 TO 35
MPH MAY PRODUCE NEAR WHITEOUT CONDITIONS AT TIMES DURING THE
PERIODS OF HEAVIER SNOWFALL.

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.

&&

$$
6 follow-up statements
000 
WWUS43 KDVN 281632
WSWDVN

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1132 AM CDT SAT MAR 28 2009

...HEAVY SNOW AND SOME SLEET EXPECTED THIS AFTERNOON INTO EARLY
SUNDAY MORNING...

.AN INTENSE EARLY SPRING STORM SYSTEM WILL TRACK FROM TEXAS TO
NORTHERN INDIANA TODAY AND TONIGHT BRINGING A BAND OF 4 TO
8 INCHES OF HEAVY WET SNOW TO PORTIONS OF THE REGION. A PERIOD OR
TWO OF SLEET...POSSIBLY HEAVY AT TIMES IS EXPECTED INTO THE EARLY
EVENING HOURS MOST LOCATIONS BEFORE THE CHANGEOVER TO ALL SNOW.

IAZ042-052-053-064-076-290045-
/O.UPG.KDVN.WW.Y.0008.090328T1800Z-090329T1500Z/
/O.EXB.KDVN.WS.W.0003.090328T2100Z-090329T1500Z/
DUBUQUE-LINN-JONES-JOHNSON-KEOKUK-
INCLUDING THE CITIES OF...DUBUQUE...CEDAR RAPIDS...ANAMOSA...
IOWA CITY...SIGOURNEY
1132 AM CDT SAT MAR 28 2009

...WINTER STORM WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 AM CDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN QUAD CITIES HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND SLEET...WHICH IS IN EFFECT FROM 4 PM
THIS AFTERNOON TO 10 AM CDT SUNDAY. THE WINTER WEATHER ADVISORY IS
NO LONGER IN EFFECT.

SLEET HAS DEVELOPED LATE THIS MORNING WEST OF INTERSTATE 380 AND IS
GRADUALLY SPREADING TO THE NORTHEAST. THE SLEET WILL BECOME MIXED
WITH SNOW...AND BECOME ALL SNOW BY LATE AFTERNOON...WITH HEAVY WET
SNOW CONTINUING INTO SATURDAY NIGHT. INITIALLY THE SNOW WILL MELT
BUT ACCUMULATING SNOW SHOULD BEGIN BY LATE AFTERNOON...AND
CONTINUE INTO SATURDAY NIGHT. SNOW AND SLEET AMOUNTS ARE LIKELY
TO VARY ACROSS THE AREA...BUT CURRENT INDICATIONS SUGGEST THAT 4
TO 8 INCHES IS LIKELY. STRONG NORTHERLY WINDS AT 20 TO 35 MPH MAY
PRODUCE NEAR WHITEOUT CONDITIONS AT TIMES DURING THE PERIODS OF
HEAVIER SNOWFALL.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS 6 TO 8 INCHES OR MORE OF SNOW FALLING
AT INTENSE RATES OF 1 TO 2 INCHES PER HOUR...COMBINED WITH STRONG
WINDS AND POSSIBLY...SLEET...AND/OR FREEZING RAIN IS EXPECTED OR
OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS OR IMPOSSIBLE...SO
ONLY TRAVEL IN AN EMERGENCY AND TAKE YOUR WINTER SURVIVAL KIT.

&&

$$

IAZ054-065>068-077-078-087>089-098-099-ILZ001-002-007-009-015>018-
024>026-034-035-MOZ009-010-290045-
/O.EXT.KDVN.WS.W.0003.090328T2100Z-090329T1500Z/
JACKSON-CEDAR-CLINTON-MUSCATINE-SCOTT-WASHINGTON-LOUISA-JEFFERSON-
HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON-
WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
INCLUDING THE CITIES OF...MAQUOKETA...TIPTON...CLINTON...
MUSCATINE...BETTENDORF...DAVENPORT...WASHINGTON...WAPELLO...
FAIRFIELD...MOUNT PLEASANT...BURLINGTON...KEOSAUQUA....
FORT MADISON...GALENA...FREEPORT...MOUNT CARROLL...STERLING...
ROCK FALLS...MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...
HENNEPIN...ALEDO...OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...
MEMPHIS...KAHOKA
1132 AM CDT SAT MAR 28 2009

...WINTER STORM WARNING NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 AM CDT SUNDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM CDT SUNDAY. 

RAIN IS DEVELOPING THIS MORNING SOUTH OF INTERSTATE 80 AND WILL 
GRADUALLY SPREAD TO THE NORTHEAST DURING THE DAY. RAIN WILL
BECOME MIXED WITH SLEET AND THEN SNOW AT TIMES THROUGH THE AFTERNOON
HOURS. IT WILL BECOME ALL SNOW BY MID EVENING...WITH HEAVY WET
SNOW CONTINUING INTO SATURDAY NIGHT. INITIALLY THE SNOW AND SLEET WILL
MELT BUT ACCUMULATING SNOW SHOULD BEGIN BY DUSK...AND CONTINUE
INTO SATURDAY NIGHT. CONSIDERABLE SNOW AND SLEET AMOUNTS ARE
LIKELY TO VARY ACROSS THE AREA...BUT CURRENT INDICATIONS SUGGEST
THAT A BAND OF 4 TO 8 INCHES IS LIKELY OVER PORTIONS OF THE WATCH
AREA BY THE TIME THE SNOW ENDS SUNDAY MORNING. LOCALLY HIGHER
AMOUNTS MAY OCCUR IF THUNDER-SNOWS DEVELOP. STRONG NORTHERLY WINDS
AT 25 UP TO 40 MPH MAY PRODUCE NEAR WHITEOUT CONDITIONS AT TIMES
DURING THE PERIODS OF HEAVIER SNOWFALL...MAINLY THIS EVENING AND
CONTINUING OVERNIGHT. SOME DRIFTING OF SNOW IS ALSO POSSIBLE LATE
THIS EVENING AND OVERNIGHT DUE TO THE STRONG WINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS 6 TO 7 INCHES OR MORE
OF SNOW FALLING AT INTENSE RATES OF 1 TO 2 INCHES PER HOUR...IS
EXPECTED. THIS WILL MAKE TRAVEL VERY DANGEROUS OR IMPOSSIBLE...SO
ONLY TRAVEL IN AN EMERGENCY AND TAKE YOUR WINTER SURVIVAL KIT.

&&

$$

IAZ040-041-051-063-290045-
/O.CON.KDVN.WW.Y.0008.090328T1800Z-090329T1500Z/
BUCHANAN-DELAWARE-BENTON-IOWA-
INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...VINTON...
MARENGO
1132 AM CDT SAT MAR 28 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY. 

SLEET HAS DEVELOPED LATE THIS MORNING WEST OF INTERSTATE 380 AND IS
GRADUALLY SPREADING TO THE NORTHEAST. THE SLEET WILL BECOME MIXED
WITH SNOW...AND BECOME ALL SNOW BY LATE AFTERNOON...WITH HEAVY WET
SNOW CONTINUING INTO SATURDAY NIGHT. INITIALLY THE SNOW WILL MELT
BUT ACCUMULATING SNOW SHOULD BEGIN BY LATE AFTERNOON...AND CONTINUE
INTO SATURDAY NIGHT. SNOWFALL AMOUNTS ARE LIKELY TO VARY ACROSS
THE AREA...BUT CURRENT INDICATIONS SUGGEST THAT 2 TO 5 INCHES IS
EXPECTED. STRONG NORTHERLY WINDS AT 20 TO 30 MPH MAY PRODUCE LOW
VISIBILITIES AT TIMES DURING THE PERIODS OF HEAVIER SNOWFALL.

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.

&&

$$

NICHOLS
000 
WWUS43 KDVN 282011
WSWDVN

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
311 PM CDT SAT MAR 28 2009

...HEAVY SNOW AND SOME SLEET EXPECTED THIS AFTERNOON INTO EARLY
SUNDAY MORNING...

.AN INTENSE EARLY SPRING STORM SYSTEM WILL TRACK FROM TEXAS TO
NORTHERN INDIANA TODAY AND TONIGHT BRINGING A BAND OF 4 TO
8 INCHES OF HEAVY WET SNOW TO PORTIONS OF THE REGION. A PERIOD OR
TWO OF SLEET...POSSIBLY HEAVY AT TIMES IS EXPECTED INTO THE EARLY
EVENING HOURS MOST LOCATIONS BEFORE THE CHANGEOVER TO ALL SNOW.

IAZ042-052>054-064>068-076>078-087>089-098-099-ILZ001-002-007-009-
015>018-024>026-034-035-MOZ009-010-290415-
/O.CON.KDVN.WS.W.0003.090328T2100Z-090329T1500Z/
DUBUQUE-LINN-JONES-JACKSON-JOHNSON-CEDAR-CLINTON-MUSCATINE-SCOTT-
KEOKUK-WASHINGTON-LOUISA-JEFFERSON-HENRY IA-DES MOINES-VAN BUREN-
LEE-JO DAVIESS-STEPHENSON-CARROLL-WHITESIDE-ROCK ISLAND-HENRY IL-
BUREAU-PUTNAM-MERCER-HENDERSON-WARREN-HANCOCK-MCDONOUGH-SCOTLAND-
CLARK-
INCLUDING THE CITIES OF...DUBUQUE...CEDAR RAPIDS...ANAMOSA...
MAQUOKETA...IOWA CITY...TIPTON...CLINTON...MUSCATINE...
BETTENDORF...DAVENPORT...SIGOURNEY...WASHINGTON...WAPELLO...
FAIRFIELD...MOUNT PLEASANT...BURLINGTON...KEOSAUQUA....
FORT MADISON...GALENA...FREEPORT...MOUNT CARROLL...STERLING...
ROCK FALLS...MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...
HENNEPIN...ALEDO...OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...
MEMPHIS...KAHOKA
311 PM CDT SAT MAR 28 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM CDT SUNDAY. 

A MIXTURE OF RAIN...SNOW AND SLEET WILL GRADUALLY CHANGE TO A WET
SNOW THIS EVENING...BECOMING HEAVY AT TIMES THROUGH TONIGHT.
CONSIDERABLE SNOW AND SLEET AMOUNTS ARE LIKELY TO VARY ACROSS THE
AREA...BUT CURRENT INDICATIONS SUGGEST THAT A BAND OF 4 TO 8
INCHES IS LIKELY OVER PORTIONS OF THE WATCH AREA BY THE TIME THE
SNOW ENDS SUNDAY MORNING. LOCALLY HIGHER AMOUNTS MAY OCCUR IF
THUNDER-SNOWS DEVELOP. STRONG NORTHERLY WINDS AT 25 UP TO 40 MPH
MAY PRODUCE NEAR WHITEOUT CONDITIONS AT TIMES DURING THE PERIODS
OF HEAVIER SNOWFALL...MAINLY THIS EVENING AND CONTINUING OVERNIGHT.
SOME DRIFTING OF SNOW IS ALSO POSSIBLE LATE THIS EVENING AND
OVERNIGHT DUE TO THE STRONG WINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS 6 TO 7 INCHES OR MORE
OF SNOW FALLING AT INTENSE RATES OF 1 TO 2 INCHES PER HOUR...IS
EXPECTED. THIS WILL MAKE TRAVEL VERY DANGEROUS OR IMPOSSIBLE...SO
ONLY TRAVEL IN AN EMERGENCY AND TAKE YOUR WINTER SURVIVAL KIT.

&&

$$

IAZ040-041-051-063-290415-
/O.CON.KDVN.WW.Y.0008.000000T0000Z-090329T1500Z/
BUCHANAN-DELAWARE-BENTON-IOWA-
INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...VINTON...
MARENGO
311 PM CDT SAT MAR 28 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY. 

SNOW...HEAVY AT TIMES WILL CONTINUE INTO THE EARLY OVERNIGHT
SNOWFALL AMOUNTS OF 2 TO 5 INCHES ARE EXPECTED. STRONG NORTHERLY
WINDS AT 20 TO 30 MPH MAY PRODUCE LOW VISIBILITIES AT TIMES DURING
THE PERIODS OF HEAVIER SNOWFALL.

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.

&&

$$

NICHOLS
000 
WWUS43 KDVN 290001
WSWDVN

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
701 PM CDT SAT MAR 28 2009

...WINTER STORM CONTINUES TO TAKE SHAPE....

.AN INTENSE EARLY SPRING STORM SYSTEM WILL TRACK FROM THE LOWER
OHIO VALLEY INTO THE SOUTHERN GREAT LAKES TONIGHT BRINGING A BAND OF 4
TO 8 INCHES OF HEAVY WET SNOW TO PORTIONS OF THE REGION. A PERIOD
OR TWO OF SLEET...POSSIBLY HEAVY AT TIMES IS EXPECTED EARLY
THIS EVENING IS SOME LOCATIONS BEFORE THE CHANGEOVER TO ALL SNOW.

IAZ042-052>054-064>068-076>078-087>089-098-099-ILZ001-002-007-009-
015>018-024>026-034-035-MOZ009-010-290815-
/O.CON.KDVN.WS.W.0003.000000T0000Z-090329T1500Z/
DUBUQUE-LINN-JONES-JACKSON-JOHNSON-CEDAR-CLINTON-MUSCATINE-SCOTT-
KEOKUK-WASHINGTON-LOUISA-JEFFERSON-HENRY IA-DES MOINES-VAN BUREN-
LEE-JO DAVIESS-STEPHENSON-CARROLL-WHITESIDE-ROCK ISLAND-HENRY IL-
BUREAU-PUTNAM-MERCER-HENDERSON-WARREN-HANCOCK-MCDONOUGH-SCOTLAND-
CLARK-
INCLUDING THE CITIES OF...DUBUQUE...CEDAR RAPIDS...ANAMOSA...
MAQUOKETA...IOWA CITY...TIPTON...CLINTON...MUSCATINE...
BETTENDORF...DAVENPORT...SIGOURNEY...WASHINGTON...WAPELLO...
FAIRFIELD...MOUNT PLEASANT...BURLINGTON...KEOSAUQUA....
FORT MADISON...GALENA...FREEPORT...MOUNT CARROLL...STERLING...
ROCK FALLS...MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...
HENNEPIN...ALEDO...OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...
MEMPHIS...KAHOKA
701 PM CDT SAT MAR 28 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM CDT SUNDAY. 

AS OF 7 PM A BAND OF MODERATE TO HEAVY SNOW HAS DEVELOPED FROM
SOUTHEAST IOWA INTO NORTHWEST ILLINOIS. TO THE SOUTHEAST OF THIS
AREA...OVER WEST CENTRAL ILLINOIS AND ADJACENT AREAS OF SOUTHEAST
IOWA AND NORTHEAST MISSOURI...A MIX BAG OF RAIN...SLEET AND SNOW
WAS OCCURRING.

THROUGH THE EVENING THE MODERATE TO HEAVY SNOW OVER NORTHWEST
ILLINOIS AND PARTS OF EAST CENTRAL IOWA WILL CONTINUE WITH
ADDITIONAL ACCUMULATIONS UP TO 4 OR 5 INCHES POSSIBLE BY
MIDNIGHT. THE MIXED BAG OF PRECIPITATION TO THE SOUTHEAST SHOULD
GRADUALLY CHANGE TO ALL SNOW BY LATE EVENING WITH THUNDER SNOW
ALSO POSSIBLE. ACCUMULATIONS BY MIDNIGHT IN THIS AREA SHOULD BE
IN THE 1 TO 3 INCH RANGE WITH LOCALLY HIGHER AMOUNTS WHERE THUNDER
SNOW OCCURS.

ADDITIONAL ACCUMULATIONS ARE EXPECTED OVERNIGHT BEFORE THE SNOW
ENDS FROM WEST TO EAST EARLY SUNDAY MORNING. TOTAL ACCUMULATIONS
IN THE WARNING AREA OF 4 TO 8 INCHES ARE POSSIBLE.

SOME DRIFTING OF SNOW IS ALSO EXPECTED TONIGHT DUE TO THE STRONG
WINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS 6 TO 7 INCHES OR MORE
OF SNOW FALLING AT INTENSE RATES OF 1 TO 2 INCHES PER HOUR...IS
EXPECTED. THIS WILL MAKE TRAVEL VERY DANGEROUS OR IMPOSSIBLE...SO
ONLY TRAVEL IN AN EMERGENCY AND TAKE YOUR WINTER SURVIVAL KIT.

&&

$$

IAZ040-041-051-063-290815-
/O.CON.KDVN.WW.Y.0008.000000T0000Z-090329T1500Z/
BUCHANAN-DELAWARE-BENTON-IOWA-
INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...VINTON...
MARENGO
701 PM CDT SAT MAR 28 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY. 

SNOW...HEAVY AT TIMES WILL CONTINUE INTO THE EARLY OVERNIGHT
SNOWFALL AMOUNTS OF 2 TO 5 INCHES ARE EXPECTED. STRONG NORTHERLY
WINDS AT 20 TO 30 MPH MAY PRODUCE LOW VISIBILITIES AT TIMES
DURING THE PERIODS OF HEAVIER SNOWFALL.

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.

&&

$$
000 
WWUS43 KDVN 290226
WSWDVN

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
926 PM CDT SAT MAR 28 2009

...WINTER STORM PRODUCING A VARIETY PRECIPITATION....

.AN INTENSE EARLY SPRING STORM SYSTEM WILL TRACK FROM THE LOWER
OHIO VALLEY INTO THE SOUTHERN GREAT LAKES TONIGHT BRINGING A MIX OF
SNOW...SLEET AND FREEZING RAIN TO THE AREA. AN ISOLATED
THUNDERSTORM IS ALSO POSSIBLE. SNOWFALL FROM THE STORM IS EXPECTED
TO BE IN THE 4 TO 6 INCH RANGE BY SUNDAY MORNING.

IAZ042-052>054-064>068-076>078-087>089-098-099-ILZ001-002-007-009-
015>018-024>026-034-035-MOZ009-010-291030-
/O.CON.KDVN.WS.W.0003.000000T0000Z-090329T1500Z/
DUBUQUE-LINN-JONES-JACKSON-JOHNSON-CEDAR-CLINTON-MUSCATINE-SCOTT-
KEOKUK-WASHINGTON-LOUISA-JEFFERSON-HENRY IA-DES MOINES-VAN BUREN-
LEE-JO DAVIESS-STEPHENSON-CARROLL-WHITESIDE-ROCK ISLAND-HENRY IL-
BUREAU-PUTNAM-MERCER-HENDERSON-WARREN-HANCOCK-MCDONOUGH-SCOTLAND-
CLARK-
INCLUDING THE CITIES OF...DUBUQUE...CEDAR RAPIDS...ANAMOSA...
MAQUOKETA...IOWA CITY...TIPTON...CLINTON...MUSCATINE...
BETTENDORF...DAVENPORT...SIGOURNEY...WASHINGTON...WAPELLO...
FAIRFIELD...MOUNT PLEASANT...BURLINGTON...KEOSAUQUA....
FORT MADISON...GALENA...FREEPORT...MOUNT CARROLL...STERLING...
ROCK FALLS...MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...
HENNEPIN...ALEDO...OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...
MEMPHIS...KAHOKA
926 PM CDT SAT MAR 28 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM CDT SUNDAY. 

A MIXED BAG OF PRECIPITATION CONTINUES OVER THE AREA THIS EVENING.
A BAND OF MODERATE TO HEAVY SNOW CONTINUED FROM EAST CENTRAL IOWA
INTO THE NORTHWEST ILLINOIS. THE BAND OF HEAVIER SNOWFALL EXTENDED
FROM THE KEOSAUQUA AREA NORTHEAST THROUGH THE CEDAR RAPIDS AREA
INTO THE DUBUQUE AND GALENA AREAS. SNOWFALL AMOUNTS IN THIS BAND SO
FAR HAVE BEEN AS HIGH AS 3 TO 5 INCHES. SNOWFALL AMOUNTS DROPPED
OFF RAPIDLY TO THE SOUTHEAST WITH REPORTS OF AN INCH OR TWO COMMON
AS WELL AS SLEET ACCUMULATIONS UP TO A HALF INCH IN PARTS OF
NORTHWEST ILLINOIS. GLAZING FROM FREEZING RAIN WAS ALSO REPORTED IN
EAST CENTRAL IOWA.

FOR THE REST OF THE NIGHT THE BAND OF HEAVIER SNOWFALL IN EAST
CENTRAL IOWA AND NORTHWEST ILLINOIS IS EXPECTED TO WEAKEN WHILE
ANOTHER BAND OF SNOW FORMS OVER WEST CENTRAL ILLINOIS. THERE MAY
BE SOME THUNDER SNOW ASSOCIATED WITH THE SNOW IN WEST CENTRAL
ILLINOIS.

ANOTHER 1 TO 3 INCHES OF SNOW WILL BE POSSIBLE MAINLY WEST OF THE
MISSISSIPPI RIVER BEFORE THE SNOW ENDS EARLY SUNDAY MORNING. EAST
OF THE RIVER...ESPECIALLY IN WEST CENTRAL ILLINOIS THE POTENTIAL
FOR 2 TO 5 INCHES OF SNOW STILL EXISTS LATE TONIGHT.  

SOME DRIFTING OF SNOW IS ALSO EXPECTED TONIGHT DUE TO THE STRONG
WINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS 6 INCHES OR MORE OF
SNOW FALLING AT INTENSE RATES OF 1 TO 2 INCHES PER HOUR...IS
EXPECTED. THIS WILL MAKE TRAVEL VERY DANGEROUS OR IMPOSSIBLE...SO
ONLY TRAVEL IN AN EMERGENCY AND TAKE YOUR WINTER SURVIVAL KIT.

&&

$$

IAZ040-041-051-063-291030-
/O.CON.KDVN.WW.Y.0008.000000T0000Z-090329T1500Z/
BUCHANAN-DELAWARE-BENTON-IOWA-
INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...VINTON...
MARENGO
926 PM CDT SAT MAR 28 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY. 

SNOW WILL CONTINUE INTO THE EARLY MORNING HOURS. TOTAL SNOWFALL
AMOUNTS OF 1 TO 4 INCHES ARE EXPECTED. STRONG NORTHERLY WINDS AT
20 TO 30 MPH MAY PRODUCE LOW VISIBILITIES AT TIMES DURING THE
PERIODS OF HEAVIER SNOWFALL.

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.

&&

$$
000 
WWUS43 KDVN 290503
WSWDVN

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1203 AM CDT SUN MAR 29 2009

...WINTER STORM PRODUCING A VARIETY PRECIPITATION....

.AN INTENSE EARLY SPRING STORM SYSTEM WILL TRACK FROM THE LOWER
OHIO VALLEY INTO THE SOUTHERN GREAT LAKES TONIGHT...BRINGING A MIX OF
SNOW...SLEET AND FREEZING RAIN TO THE AREA.  SNOWFALL FROM THE
STORM IS EXPECTED TO BE IN THE 2 TO 6 INCH RANGE BY SUNDAY
MORNING.

IAZ042-052>054-064>068-076>078-087>089-098-099-ILZ001-002-007-009-
015>018-024>026-034-035-MOZ009-010-291315-
/O.CON.KDVN.WS.W.0003.000000T0000Z-090329T1500Z/
DUBUQUE-LINN-JONES-JACKSON-JOHNSON-CEDAR-CLINTON-MUSCATINE-SCOTT-
KEOKUK-WASHINGTON-LOUISA-JEFFERSON-HENRY IA-DES MOINES-VAN BUREN-
LEE-JO DAVIESS-STEPHENSON-CARROLL-WHITESIDE-ROCK ISLAND-HENRY IL-
BUREAU-PUTNAM-MERCER-HENDERSON-WARREN-HANCOCK-MCDONOUGH-SCOTLAND-
CLARK-
INCLUDING THE CITIES OF...DUBUQUE...CEDAR RAPIDS...ANAMOSA...
MAQUOKETA...IOWA CITY...TIPTON...CLINTON...MUSCATINE...
BETTENDORF...DAVENPORT...SIGOURNEY...WASHINGTON...WAPELLO...
FAIRFIELD...MOUNT PLEASANT...BURLINGTON...KEOSAUQUA....
FORT MADISON...GALENA...FREEPORT...MOUNT CARROLL...STERLING...
ROCK FALLS...MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...
HENNEPIN...ALEDO...OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...
MEMPHIS...KAHOKA
1203 AM CDT SUN MAR 29 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM CDT SUNDAY. 

FOR THE REST OF TONIGHT...LIGHT SNOW WILL CONTINUE TO DIMINISH
NORTHWEST OF FREEPORT...CLINTON...MOUNT PLEASANT LINE. ADDITIONAL
ACCUMULATIONS OF AN INCH OR TWO ARE STILL POSSIBLE.  

TO THE SOUTHEAST OF THIS AREA OVER MOST OF WEST CENTRAL ILLINOIS
AND ADJACENT AREAS OF SOUTHEAST IOWA AND NORTHEAST MISSOURI...A
MIX OF SNOW...SLEET...FREEZING RAIN AND RAIN WILL CONTINUE TO
SLOWLY TRANSITION TO ALL SNOW THROUGH 4 AM. THE HEAVIEST
PRECIPITATION IS EXPECTED SOUTHEAST OF A BURLINGTON...STERLING
ROCK FALLS LINE WHERE SNOW AND SLEET ACCUMULATIONS COULD TOTAL 1
TO 4 INCHES WITH ISOLATED AMOUNTS NEAR 6 INCHES BY MORNING.

AREAS OF EASTERN IOWA AND NORTHWEST ILLINOIS THAT RECIEVED SEVERAL
INCHES OF SNOW WILL HAVE SOME DRIFTING OF SNOW TONIGHT DUE TO
THE STRONG WINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS 6 OR MORE INCHES OF SNOW...COMBINED
WITH...SLEET...AND FREEZING RAIN IS EXPECTED OR OCCURRING. THIS
WILL MAKE TRAVEL VERY DANGEROUS OR IMPOSSIBLE...SO ONLY TRAVEL IN
AN EMERGENCY AND TAKE YOUR WINTER SURVIVAL KIT.

&&

$$

IAZ040-041-051-063-291315-
/O.CON.KDVN.WW.Y.0008.000000T0000Z-090329T1500Z/
BUCHANAN-DELAWARE-BENTON-IOWA-
INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...VINTON...
MARENGO
1203 AM CDT SUN MAR 29 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY. 

THE SNOW WILL CONTINUE TO DIMINISH OVERNIGHT WITH AN ADDITIONAL
INCH OR TWO OF SNOW POSSIBLE BY MORNING. STRONG WINDS WILL ALSO
CREATE SOME DRIFTING SNOW...ESPECIALLY IN OPEN AREAS. 

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.

&&

$$
000 
WWUS43 KDVN 290835
WSWDVN

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
335 AM CDT SUN MAR 29 2009

...STORM SYSTEM SLOWLY EXITING THE AREA...

.A POWERFUL SPRING STORM SYSTEM WILL SLOWLY EXIT THE AREA THIS MORNING.
SNOW AMOUNTS HAVE ENDED UP BEING LOWER THAN EXPECTED DUE TO MIXED
PRECIPITATION IN THE FORM OF SLEET AND FREEZING RAIN. THIS MIXED
PRECIPITATION WILL QUICKLY END DURING THE MORNING HOURS FROM WEST
TO EAST.

IAZ066>068-078-089-099-ILZ002-007-009-015>018-024>026-034-035-
MOZ010-291500-
/O.CAN.KDVN.WS.W.0003.000000T0000Z-090329T1500Z/
/O.NEW.KDVN.WW.Y.0009.090329T0835Z-090329T1500Z/
CLINTON-MUSCATINE-SCOTT-LOUISA-DES MOINES-LEE-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON-
WARREN-HANCOCK-MCDONOUGH-CLARK-
INCLUDING THE CITIES OF...CLINTON...MUSCATINE...BETTENDORF...
DAVENPORT...WAPELLO...BURLINGTON...FORT MADISON...FREEPORT...
MOUNT CARROLL...STERLING...ROCK FALLS...MOLINE...ROCK ISLAND...
KEWANEE...PRINCETON...HENNEPIN...ALEDO...OQUAWKA...MONMOUTH...
CARTHAGE...MACOMB...KAHOKA
335 AM CDT SUN MAR 29 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM CDT THIS
MORNING...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN QUAD CITIES HAS ISSUED A WINTER
WEATHER ADVISORY FOR MIXED PRECIPITATION...WHICH IS IN EFFECT
UNTIL 10 AM CDT THIS MORNING. THE WINTER STORM WARNING HAS BEEN
CANCELLED.

A MIXTURE OF LIGHT SNOW...FREEZING RAIN...AND SOME SLEET WILL
CONTINUE THROUGH MID MORNING BEFORE ENDING. NEW SNOW AMOUNTS WILL
BE AN INCH OR LESS. ANY ICE ACCUMULATIONS ARE EXPECTED TO BE ONE
TENTH OF AN INCH OR LESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF
SNOW...SLEET...AND/OR FREEZING RAIN WILL CAUSE TRAVEL
DIFFICULTIES.  BE PREPARED FOR SLIPPERY ROADS AND LIMITED
VISIBILITIES...AND BE CAREFUL WHILE DRIVING.

&&

$$

IAZ042-052>054-064-065-076-077-087-088-098-ILZ001-MOZ009-290945-
/O.CAN.KDVN.WS.W.0003.000000T0000Z-090329T1500Z/
DUBUQUE-LINN-JONES-JACKSON-JOHNSON-CEDAR-KEOKUK-WASHINGTON-
JEFFERSON-HENRY IA-VAN BUREN-JO DAVIESS-SCOTLAND-
INCLUDING THE CITIES OF...DUBUQUE...CEDAR RAPIDS...ANAMOSA...
MAQUOKETA...IOWA CITY...TIPTON...SIGOURNEY...WASHINGTON...
FAIRFIELD...MOUNT PLEASANT...KEOSAUQUA....GALENA...MEMPHIS
335 AM CDT SUN MAR 29 2009

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN QUAD CITIES HAS CANCELLED THE
WINTER STORM WARNING. 

LIGHT SNOW WILL LINGER INTO THE EARLY MORNING HOURS BEFORE ENDING.
ANY ADDITIONAL ACCUMULATIONS SHOULD BE A DUSTING AT BEST.


$$

IAZ040-041-051-063-290945-
/O.CAN.KDVN.WW.Y.0008.000000T0000Z-090329T1500Z/
BUCHANAN-DELAWARE-BENTON-IOWA-
INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...VINTON...
MARENGO
335 AM CDT SUN MAR 29 2009

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN QUAD CITIES HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

LIGHT SNOW WILL LINGER INTO THE EARLY MORNING HOURS BEFORE ENDING.
ANY ADDITIONAL ACCUMULATIONS SHOULD BE A DUSTING AT BEST.


$$

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 Mar 28, 3:28 AM CDT, 5 minutes earlier.

Area forecast discussion, Mar 28, 3:28 AM CDT, 5 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
328 AM CDT SAT MAR 28 2009

.SYNOPSIS...
A POWERFUL SPRING STORM SYSTEM WILL MOVE ACROSS THE REGION TODAY AND
TONIGHT BRINGING ACCUMULATING SNOW TO THE AREA. BEHIND THE STORM
SYSTEM TEMPERATURES WILL REMAIN BELOW NORMAL FOR LATE MARCH. THE
ACTIVE WEATHER PATTERN WILL CONTINUE NEXT WEEK WITH ANOTHER STORM
SYSTEM EARLY NEXT WEEK WITH POSSIBLY ANOTHER LATE IN THE WEEK OR
NEXT WEEKEND.

&&

.SHORT TERM...TODAY AND TONIGHT...
COMPLICATED FCST FOR THE NEXT 36 HRS. COMPARING MODEL DATA TO
OBSERVATIONS AT 06Z SHOWS THE MODELS ARE A BIT WEAK AND A LITTLE
TO THE EAST. MAKING ADJUSTMENTS POINTS TO THE CWFA GETTING HIT
PRETTY HARD WITH SNOWFALL FROM THIS STORM SYSTEM. THEREFORE WILL
UPGRADE THE WATCH TO WARNING AND GO WITH AN ADVISORY FOR ABOUT THE
NORTHWEST THIRD OF THE CWFA.

MODEL SOUNDINGS INDICATE DRY AIR IN THE 1000-850 MB LAYER WILL NEED
TO BE OVERCOME BEFORE PRECIPITATION BEGINS. ADDITIONALLY...A
COMBINATION OF EVAPORATIVE COOLING AND WAA WRAPPING AROUND THE LOW
WILL RESULT IN PRECIPITATION GOING BACK AND FORTH BETWEEN RAIN AND
SNOW. VARIOUS TOOLS/TECHNIQUES SUGGEST THE POTENTIAL FOR THUNDER
LATE IN THE AFTERNOON AND EARLY EVENING. SAID ENHANCED LIFT WOULD
THEN ALLOW A CHANGE OVER TO ALL SNOW AND POSSIBLY MIX IN SOME SLEET
AT TIMES. WARM GROUND TEMPERATURES WILL INITIALLY CAUSE ANY SNOW TO
MELT AS IT FALLS BUT AS FORCING INCREASES THIS EVENING THAT SHOULD
BE OVERCOME AS WELL. THERE WILL BE A NARROW BAND OF 6 INCH OR BETTER
SNOWFALL WITH THIS EVENT WHICH SHOULD BE ROUGHLY ALONG THE
MISSISSIPPI. HOWEVER...SINCE THE STORM SYSTEM IS STILL STRENGTHENING
AS IT MOVES THROUGH...THE MODELS ARE STILL PLAYING CATCH UP SO IT IS
CONCEIVABLE THAT A VERY NARROW MESOSCALE BAND OF SNOW OF 8 INCHES
COULD HAPPEN. WILL WORD THAT AS LOCALLY HIGHER AMOUNTS.     ...08...

.LONG TERM...SUNDAY THROUGH NEXT FRIDAY...
SUNDAY MORNING THE PRECIPITATION WILL STILL BE ONGOING OVER THE
NORTHEAST THIRD OF THE FORECAST AREA AT 12Z...BUT QUICKLY ENDING
DURING THE MORNING HOURS. 800-850MB MOISTURE CONVERGENCE AND LIFT
STILL LOOK FAIRLY GOOD AT 12Z...BUT ARE COMPLETELY GONE BY 18Z.
THUS...HAVE HELD ON TO WARNING AND ADVISORY UNTIL 15Z...PARTLY IN
CASE THERE ARE LINGERING IMPACTS ON THE ROADS DUE TO THE BREEZY
CONDITIONS SUNDAY MORNING.

ATTENTION NEXT TURNS TO THE NEXT STORM...DUE TO MOVE THROUGH THE
AREA MONDAY NIGHT AND TUESDAY.  THIS STORM IS ON A MORE NORTHERLY
TRACK FOR NOW...AND HAS SURPRISINGLY GOOD AGREEMENT BETWEEN MODELS
IN ITS TRACK.  WOULD NOT BE SURPRISED TO SEE IT SHIFT SOUTH THOUGH
IN LATER MODEL RUNS.  FOR NOW...AM GOING WITH A SURFACE LOW TRACK
THAT MOVES NORTH OF THE FORECAST AREA...AND BRINGS A WARM AIR
ADVECTION WING OF SHOWERS AND THUNDERSTORMS IN HERE MONDAY AFTERNOON
AND NIGHT...WITH THE COLD FRONT PASSAGE EARLY TUESDAY MORNING.
TEMPERATURES SHOULD WARM ON MONDAY AND MONDAY NIGHT WITH THE WARM
AIR ADVECTION ONGOING.  TUESDAY THE COLD AIR DIVES ON INTO THE
AREA...WITH 850MB TEMPERATURES DOWN INTO THE NEGATIVE SINGLE
DIGITS...FOR ALL SNOW BY AFTERNOON.  IT IS TOO SOON TO DETERMINE
SNOW AMOUNTS...BUT IT SHOULD BE LIGHT.  TEMPERATURES TO DROP OFF
BEHIND THIS SYSTEM FOR BELOW NORMAL VALUES INTO WEDNESDAY.

GFS IS TRYING TO SPIN UP YET ANOTHER STORM ON THURSDAY...WHICH IS
NOT BEING GENERATED ON THE ECMWF.  WILL LEAVE WELL ENOUGH ALONE FOR
WEDNESDAY THROUGH FRIDAY...AND LET THE DAY SHIFT TO TAKE A LOOK AT
THE NEW MODEL RUNS WHEN THEY COME IN SATURDAY MORNING.   ...LE...

&&

.AVIATION...
VFR WX CONDITIONS WILL RAPIDLY DETERIORATE THROUGH 00Z. MODELS HAVE
A VERY DRY LAYER NEAR THE SURFACE WHICH SHOULD PRECLUDE ANY
PRECIPITATION FROM OCCURRING PRIOR TO 15Z. FCST SOUNDINGS INDICATE
THE ATMOSPHERE WILL RAPIDLY SATURATE DURING THE AFTERNOON. VARIOUS
TOOLS/TECHNIQUES SUGGEST TS WILL BE POSSIBLE LATE THIS
AFTERNOON/EVENING WHICH MAY AFFECT KBRL/KMLI. CIGS WILL RAPIDLY DROP
TO AROUND 1KFT AND MAY BE SUB 1KFT TONIGHT. VSBYS TO DROP TO 1-2SM
WITH PERIOD OF SUB 1SM VSBY. 21Z-06Z TO BE THE WORST CIG/VSBY PERIOD.
...08...

&&

.HYDROLOGY...
THE STORM SYSTEM THAT IS PROGGED TO MOVE THROUGH THE REGION TODAY
AND TONIGHT IS STILL ON TRACK TO BRING MODERATE TO HEAVY AMOUNTS OF
PRECIPITATION TO THE AREA WHICH WILL HAVE AN IMPACT ON AREA RIVERS.
AT THIS TIME IT APPEARS THAT PRECIPITATION AMOUNTS OF THREE QUARTERS
OF AN INCH TO AN INCH WILL BE POSSIBLE OVER WEST CENTRAL IL AND
NEARBY AREAS OF SOUTHEAST IOWA AND NORTHWEST IL.  MOST OF THE
PRECIPITATION IS EXPECTED TO FALL AS SNOW...AND THERE IS POTENTIAL
FOR SIGNIFICANT SNOW ACCUMULATIONS. THOUGH IT WILL BE OF LONG
DURATION OF 12-18 HOURS...AND OF MOSTLY SNOW...THE PRECIPITATION
THIS WEEKEND WILL LIKELY ENHANCE AND PROLONG THE FLOODING THAT IS
ALREADY OCCURRING ON THE LOWER ROCK RIVER AND COULD CAUSE RENEWED
FLOODING ON THE LA MOINE RIVER NEAR COLMAR. ...LE...

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...WINTER STORM WARNING FROM 1 PM THIS AFTERNOON TO 10 AM CDT
     SUNDAY FOR CEDAR-CLINTON-DES MOINES-HENRY IA-JACKSON-
     JEFFERSON-LEE-LOUISA-MUSCATINE-SCOTT-VAN BUREN-WASHINGTON.

     WINTER WEATHER ADVISORY FROM 1 PM THIS AFTERNOON TO 10 AM CDT
     SUNDAY FOR BENTON-BUCHANAN-DELAWARE-DUBUQUE-IOWA-JOHNSON-
     JONES-KEOKUK-LINN.

IL...WINTER STORM WARNING FROM 1 PM THIS AFTERNOON TO 10 AM CDT
     SUNDAY FOR BUREAU-CARROLL-HANCOCK-HENDERSON-HENRY IL-JO
     DAVIESS-MCDONOUGH-MERCER-PUTNAM-ROCK ISLAND-STEPHENSON-
     WARREN-WHITESIDE.

MO...WINTER STORM WARNING FROM 1 PM THIS AFTERNOON TO 10 AM CDT
     SUNDAY FOR CLARK-SCOTLAND.

&&
Hazardous weather outlook, Mar 27, 5:38 PM CDT, 9 hours 55 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
538 PM CDT FRI MAR 27 2009

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-281000-
BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON-
CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON-
HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON-
WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
538 PM CDT FRI MAR 27 2009

...WINTER STORM WATCH IN EFFECT FOR MUCH OF THE OUTLOOK AREA FROM
1 PM CDT SATURDAY TO 7 AM CDT SUNDAY...

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

FLOODING CONTINUES ON PORTIONS OF THE ROCK RIVER IN NORTHWEST
ILLINOIS. PLEASE SEE THE LATEST FLOOD STATEMENTS AND WARNINGS
FOR ADDITIONAL DETAILS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A STRONG EARLY SPRING STORM SYSTEM WILL IMPACT THE MIDWEST EARLY
THIS WEEKEND. LATEST INDICATIONS SUGGEST THAT SIGNIFICANT SNOW
ACCUMULATIONS WILL BE POSSIBLE SATURDAY AFTERNOON AND SATURDAY NIGHT
FROM NORTHEAST MISSOURI...THROUGH THE QUAD CITIES...AND INTO
NORTHWEST ILLINOIS...ALSO AFFECTING FAR EASTERN IOWA AND ADJACENT
AREAS OF WEST CENTRAL ILLINOIS. THE PRECIPITATION IS EXPECTED TO
BEGIN AS RAIN AND SNOW MIX DURING THE DAY ON SATURDAY...SWITCHING
OVER TO ALL SNOW DURING THE AFTERNOON... WITH WET HEAVY SNOW
POSSIBLE SATURDAY NIGHT. INITIALLY THE SNOW WILL MELT BUT
ACCUMULATING SNOW SHOULD OCCUR TOWARDS EVENING AND ESPECIALLY
SATURDAY NIGHT. SNOWFALL AMOUNTS OF 4 TO 8 INCHES ARE POSSIBLE BY
THE TIME THE SNOW ENDS SUNDAY MORNING. LOCALLY HIGHER AMOUNTS MAY
OCCUR IF THUNDERSNOWS DEVELOP. THE SNOW MAY BECOME HEAVY AT TIMES
FALLING AT A RATE OF OVER AN INCH PER HOUR... WHILE REDUCING
VISIBILITY TO LESS THAN A QUARTER OF A MILE. A WINTER STORM WATCH IS
IN EFFECT FROM SATURDAY AFTERNOON INTO SUNDAY MORNING FOR MUCH OF
THE AREA EAST OF A MANCHESTER...TO CEDAR RAPIDS...TO SIGOURNEY LINE.

THERE IS STILL SOME UNCERTAINTY ON THE EXACT TRACK OF THE STORM
SYSTEM...AS WELL AS HOW WARM TEMPERATURES MAY BE...BOTH OF WHICH
MAY HAVE A BIG IMPACT ON SNOW AMOUNTS. EMERGENCY MANAGERS
AND THOSE PLANNING TRAVEL THIS WEEKEND ARE URGED TO MONITOR LATER
FORECASTS FOR UPDATED DETAILS ON THE POTENTIAL FOR SIGNIFICANT SNOW
ACCUMULATIONS WITH THIS STRONG EARLY SPRING STORM.

LOOKING AHEAD INTO NEXT WEEK...LONGER RANGE SIGNALS SUGGEST THAT THE
ACTIVE WEATHER PATTERN WILL CONTINUE AND THAT ANOTHER STRONG STORM
SYSTEM MAY IMPACT THE MIDWEST MONDAY INTO TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT.

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 28, 3:33 AM CDTWinter Weather AdvisoryDVNBenton, Buchanan, Delaware, Dubuque, Iowa, Johnson and 3 more24 hr

Nearby

Winter Storm Warnings in Iowa, 2009Winter Storm Warnings in Illinois, 2009Winter Storm Warnings in Missouri, 2009Every winter storm warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.