Frost Advisory 1, NWS Quad Cities, IA

563 
WWUS73 KDVN 060244
NPWDVN

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
944 PM CDT THU APR 5 2012

...FREEZING TEMPERATURES POSSIBLE TONIGHT...

.A COLD AND DRY AIR MASS WILL MOVE INTO THE AREA TONIGHT AND
EARLY FRIDAY. THIS WILL ALLOW TEMPERATURES IN MOST AREAS TO DROP
INTO THE LOWER TO MIDDLE 30S...RESULTING IN WIDESPREAD FROST. IN
SOME AREAS...LOW TEMPERATURES COULD FALL TO AROUND 30...WHICH
COULD DAMAGE SENSITIVE VEGETATION AND FRUIT TREES IF NOT PROPERLY
PROTECTED.

IAZ040>042-051>054-064>068-078-ILZ001-002-007-009-015>018-024-
061245-
/O.CON.KDVN.FZ.W.0001.120406T0600Z-120406T1300Z/
BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-JOHNSON-CEDAR-
CLINTON-MUSCATINE-SCOTT-LOUISA-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-
INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...DUBUQUE...
VINTON...CEDAR RAPIDS...ANAMOSA...MAQUOKETA...IOWA CITY...
TIPTON...CLINTON...MUSCATINE...BETTENDORF...DAVENPORT...WAPELLO...
GALENA...FREEPORT...MOUNT CARROLL...STERLING...ROCK FALLS...
MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...HENNEPIN...ALEDO
944 PM CDT THU APR 5 2012

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT
FRIDAY...

* TIMING...FROM LATE TONIGHT TO EARLY FRIDAY MORNING.

* TEMPERATURE...MINIMUM TEMPERATURES WILL FALL INTO THE LOW TO 
  MID 30S TONIGHT. LOW LYING SHELTERED LOCATIONS COULD DROP INTO 
  THE UPPER 20S. 

* IMPACTS...THE COLD TEMPERATURES WILL CAUSE DAMAGE TO SENSITIVE 
  PLANTS AND FRUIT TREES. TAKE MEASURES TO PROTECT ANY COLD 
  SENSITIVE VEGETATION TONIGHT AND EARLY FRIDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY.  THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION. COVER SENSITIVE PLANTS OR BRING INDOORS FOR
PROTECTION.

&&

$$

IAZ063-076-077-088-089-ILZ025-026-035-061245-
/O.CON.KDVN.FR.Y.0001.120406T0600Z-120406T1300Z/
IOWA-KEOKUK-WASHINGTON-HENRY IA-DES MOINES-HENDERSON-WARREN-
MCDONOUGH-
INCLUDING THE CITIES OF...MARENGO...SIGOURNEY...WASHINGTON...
MOUNT PLEASANT...BURLINGTON...OQUAWKA...MONMOUTH...MACOMB
944 PM CDT THU APR 5 2012

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT
FRIDAY...

* TIMING...FROM LATE TONIGHT TO EARLY FRIDAY MORNING.

* TEMPERATURE...MINIMUM TEMPERATURES WILL FALL INTO THE MID 30S 
  TONIGHT. LOW LYING SHELTERED LOCATIONS COULD DROP INTO THE 
  LOWER 30S. AREAS OF FROST ARE EXPECTED. 

* IMPACTS...THE COLD TEMPERATURES WILL CAUSE DAMAGE TO SENSITIVE 
  PLANTS AND FRUIT TREES. TAKE MEASURES TO PROTECT ANY COLD 
  SENSITIVE VEGETATION TONIGHT AND EARLY FRIDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS LIKELY.  COVER OR MOVE
SENSITIVE PLANTS INDOORS.

&&

$$

NICHOLS

140 
WWUS73 KDVN 060837
NPWDVN

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
337 AM CDT FRI APR 6 2012

...FREEZING TEMPERATURES POSSIBLE TONIGHT...

.A COLD AND DRY AIR MASS OVER THE MIDWEST EARLY THIS MORNING IS
ALLOWING TEMPERATURES TO DROP INTO THE LOWER TO MID 30S...
RESULTING IN AREAS OF SUB-FREEZING TEMPERATURES AND PATCHY FROST.
IN SOME AREAS...LOW TEMPERATURES WILL BE COLD ENOUGH TO DAMAGE
UNPROTECTED SENSITIVE VEGETATION. HOWEVER...A HARD FREEZE IS NOT
EXPECTED.

IAZ040>042-051>054-064>068-078-ILZ001-002-007-009-015>018-024-
061300-
/O.CON.KDVN.FZ.W.0001.000000T0000Z-120406T1300Z/
BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-JOHNSON-CEDAR-
CLINTON-MUSCATINE-SCOTT-LOUISA-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-
INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...DUBUQUE...
VINTON...CEDAR RAPIDS...ANAMOSA...MAQUOKETA...IOWA CITY...
TIPTON...CLINTON...MUSCATINE...BETTENDORF...DAVENPORT...WAPELLO...
GALENA...FREEPORT...MOUNT CARROLL...STERLING...ROCK FALLS...
MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...HENNEPIN...ALEDO
337 AM CDT FRI APR 6 2012

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...

* TIMING...THOUGH EARLY THIS MORNING.

* TEMPERATURE...MINIMUM TEMPERATURES WILL FALL INTO THE LOW TO MID
  30S...BUT LOW-LYING SHELTERED LOCATIONS COULD DROP INTO THE UPPER
  20S.

* IMPACTS...THE COLD TEMPERATURES WILL DAMAGE TO SENSITIVE
  VEGETATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. COVER SENSITIVE PLANTS OR BRING INDOORS FOR
PROTECTION.

&&

$$

IAZ063-076-077-088-089-ILZ025-026-035-061300-
/O.CON.KDVN.FR.Y.0001.000000T0000Z-120406T1300Z/
IOWA-KEOKUK-WASHINGTON-HENRY IA-DES MOINES-HENDERSON-WARREN-
MCDONOUGH-
INCLUDING THE CITIES OF...MARENGO...SIGOURNEY...WASHINGTON...
MOUNT PLEASANT...BURLINGTON...OQUAWKA...MONMOUTH...MACOMB
337 AM CDT FRI APR 6 2012

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...

* TIMING...EARLY THIS MORNING.

* TEMPERATURE...MINIMUM TEMPERATURES WILL FALL INTO THE MID 30S
  EARLY THIS MORNING. LOW LYING SHELTERED LOCATIONS COULD DROP
  INTO THE LOWER 30S. AREAS OF FROST ARE EXPECTED WHERE WINDS
  BECOME LIGHT.

* IMPACTS...THE FROST AND COLD TEMPERATURES COULD DAMAGE SENSITIVE
  VEGETATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS LIKELY.  COVER OR MOVE
SENSITIVE PLANTS INDOORS.

&&

$$

WOLF

289 
WWUS73 KDVN 061234
NPWDVN

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
734 AM CDT FRI APR 6 2012

...FREEZE WARNING AND FROST ADVISORY TO EXPIRE AT 8 AM...

IAZ040>042-051>054-064>068-078-ILZ001-002-007-009-015>018-024-
061345-
/O.EXP.KDVN.FZ.W.0001.000000T0000Z-120406T1300Z/
BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-JOHNSON-CEDAR-
CLINTON-MUSCATINE-SCOTT-LOUISA-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-
INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...DUBUQUE...
VINTON...CEDAR RAPIDS...ANAMOSA...MAQUOKETA...IOWA CITY...
TIPTON...CLINTON...MUSCATINE...BETTENDORF...DAVENPORT...WAPELLO...
GALENA...FREEPORT...MOUNT CARROLL...STERLING...ROCK FALLS...
MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...HENNEPIN...ALEDO
734 AM CDT FRI APR 6 2012

...FREEZE WARNING WILL EXPIRE AT 8 AM CDT THIS MORNING...

TEMPERATURES ARE WARMING QUICKLY THIS MORNING...THUS THE FREEZE
WARNING WILL EXPIRE AT 8 AM.

$$

IAZ063-076-077-088-089-ILZ025-026-035-061345-
/O.EXP.KDVN.FR.Y.0001.000000T0000Z-120406T1300Z/
IOWA-KEOKUK-WASHINGTON-HENRY IA-DES MOINES-HENDERSON-WARREN-
MCDONOUGH-
INCLUDING THE CITIES OF...MARENGO...SIGOURNEY...WASHINGTON...
MOUNT PLEASANT...BURLINGTON...OQUAWKA...MONMOUTH...MACOMB
734 AM CDT FRI APR 6 2012

...FROST ADVISORY WILL EXPIRE AT 8 AM CDT THIS MORNING...

TEMPERATURES ARE WARMING QUICKLY THIS MORNING...THUS THE FROST
ADVISORY WILL EXPIRE AT 8 AM.

$$

WOLF

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
323 PM CDT THU APR 5 2012

.SYNOPSIS...
12Z UA ANALYSIS HAS AN UPPER LOW OVER EASTERN MISSOURI WITH AN
850MB STATIONARY FRONTS EAST INTO THE OHIO VALLEY AND NORTHWEST
INTO THE NORTHERN PLAINS. AN 850MB COLD FRONT MARKING THE EDGE OF
THE COLD CANADIAN AIR MASS RAN FROM NORTHWEST MINNESOTA TO THE
SOUTH SHORE OF LAKE ERIE. SATELLITE TRENDS THROUGH THE DAY HAVE
SHOWN CONSIDERABLE HIGH CLOUDS THAT HAVE BEEN SLOWLY THINNING
THROUGH THE AFTERNOON.

18Z SFC ANALYSIS HAS SEVERAL WEAK LOWS FROM SOUTHEAST MISSOURI
INTO THE TENNESSEE VALLEY WITH A STATIONARY FRONT CONNECTING THEM.
DEW POINTS WERE IN THE 40S AND 50S FROM THE PLAINS INTO THE OHIO
VALLEY AND THE DEEP SOUTH. DEW POINTS IN THE 20S AND 30S WERE
ACROSS THE GREAT LAKES AND MISSISSIPPI VALLEY.

&&

.SHORT TERM...TONIGHT AND FRIDAY
QUIET BUT COLD CONDITIONS WILL BE SEEN ACROSS THE AREA TONIGHT AS
HIGH PRESSURE BUILDS INTO THE GREAT LAKES. THE MAIN CONCERN FOR
TONIGHT IS WHAT TO DO WITH THE CURRENT HEADLINES.

THERE ARE SEVERAL CONCERNS REGARDING HOW COLD IT WILL GET. THE
MODELS HAVE INDICATED THAT IT WAS CLEAR ALL DAY. HOWEVER...
SATELLITE TRENDS INDICATED OTHERWISE ALTHOUGH THE TRENDS THROUGH
THE AFTERNOON HAVE BEEN FOR THINNING CLOUDS. SECOND...THE
CONTINUED FLOW OFF LAKE MICHIGAN RAISES THE QUESTION OF LAKE
INDUCED CLOUDS TONIGHT. THE MODELS ARE SUGGESTING SUCH A
POSSIBILITY MIGHT OCCUR WITH A SURGE OF MOISTURE MOVING WEST
DURING THE EVENING. THIRD...THE VORT MAX IN THE EASTERN DAKOTAS
WILL DROP NEARLY DUE SOUTH TONIGHT AND ALL MODELS MAINTAIN AN AREA
OF HIGHER MOISTURE ALOFT SUGGESTING CLOUDS. HOWEVER...HEIGHTS
BUILD WITH THE UPPER RIDGE DURING THE NIGHT WHICH MAY ALLOW ANY
CI/CS TO THIN AND POSSIBLY DISSIPATE.

BASED ON FORECASTED MIN TEMPERATURES...WILL GO WITH A FREEZE
WARNING FOR ESSENTIALLY ALL OF THE ORIGINAL WATCH AREA. WILL ALSO
ADD A FROST ADVISORY ON THE PERIPHERY OF THE FREEZE WARNING WERE
TEMPERATURES WILL BE CLOSE BUT JUST ABOVE FREEZING.

QUIET CONDITIONS WILL CONTINUE ON FRIDAY AS THE HIGH MOVES
SOUTHEAST ACROSS THE GREAT LAKES. TEMPERATURES SHOULD BE CLOSE TO
NORMAL FOR EARLY APRIL.    ..08..

.LONG TERM...FRIDAY NIGHT THROUGH NEXT THURSDAY
FRIDAY NIGHT WILL BE ANOTHER CHILLY NIGHT WITH TEMPERATURES IN THE
MID 30S TO LOW 40S...BUT NOT AS COLD AS TONIGHT SO WHILE WE MAY HAVE
SOME PATCHY FROST DO NOT HAVE ANY CURRENT PLANS FOR HEADLINES.

SATURDAY AND SATURDAY EVENING WE HAVE A COLD FRONT MOVING ACROSS THE
AREA. IT WILL BE ACCOMPANIED BY A NARROW PLUME OF MOISTURE...SO WE
CAN EXPECT A BAND OF SHOWERS TO MOVE ACROSS THE FORECAST AREA AHEAD
OF THE COLD FRONT.  THERE IS VERY LITTLE INSTABILITY...AND ONLY A
SMALL AMOUNT OF ELEVATED INSTABILITY...SO THERE MAY BE SOME ISOLATED
THUNDERSTORMS IN AMONGST THE RAIN SHOWERS.  DO NOT EXPECT ANYTHING
LARGE FOR RAINFALL AMOUNTS SO HAVE KEPT THAT GENERALLY LESS THAN A
TENTH OF AN INCH.

SUNDAY TO BE COOLER AND WINDIER THAN SATURDAY BUT WITH A FAIR AMOUNT
OF SUNSHINE IT SHOULD BE A RELATIVELY PLEASANT DAY.

SUNDAY NIGHT A COLD FRONT IS EXPECTED TO MOVE THROUGH THE
AREA...ESCORTING SOME MUCH COLDER AIR.  THIS IS ALSO HERALDS THE
ONSET OF THE STRONGLY AMPLIFIED PATTERN OF TROUGH OUT EAST WITH A
TROUGH OUT WEST THAT FUNNELS COLDER AIR INTO THE REGION.  THUS...WE
ARE LOOKING AT A MUCH COLDER START TO THE WORK WEEK...WHICH SHOULD
SLOWLY MODIFY THROUGH THE LATER HALF OF THE WEEK.  MONDAY NIGHT AND
TUESDAY NIGHT WILL BE AT RISK FOR MORE FROST OR FREEZE
HIGHLIGHTS...WITH NEGATIVE SINGLE DIGIT 850MB TEMPERATURES DUMPING
INTO THE AREA AND A SURFACE RIDGE SLOWLY MOVING ACROSS THE AREA.
FOR NOW HAVE PUT PATCHY FROST INTO THE FORECAST...BUT LATER SHIFTS
WILL NEED TO REEVALUATE THIS CONCERN.  ..LE..

&&

.AVIATION...
VFR WX WILL BE SEEN THROUGH 00Z/07 AS HIGH PRESSURE MOVES
SOUTHEAST THROUGH THE GREAT LAKES. THERE IS A GOOD CHANCE OF FROST
PRIOR TO SUNRISE ON NON-HANGARED ACFT. THE MODELS ARE HINTING AT
POTENTIAL MVFR CLOUDS DVLPG AND ADVECTING WEST/SOUTHWEST FROM LAKE
MICHIGAN IN THE LOW LEVEL FLOW. NO MVFR CLOUDS WERE INCLUDED IN
THE 18Z TAFS BUT SUCH A SCENARIO WILL NEED TO BE MONITORED ONCE
THE SUN SETS.         ..08..

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...FREEZE WARNING FROM 1 AM TO 8 AM CDT FRIDAY FOR BENTON-BUCHANAN-
     CEDAR-CLINTON-DELAWARE-DUBUQUE-JACKSON-JOHNSON-JONES-LINN-
     LOUISA-MUSCATINE-SCOTT.

     FROST ADVISORY FROM 1 AM TO 8 AM CDT FRIDAY FOR DES MOINES-HENRY
     IA-IOWA-KEOKUK-WASHINGTON.

IL...FREEZE WARNING FROM 1 AM TO 8 AM CDT FRIDAY FOR BUREAU-CARROLL-
     HENRY IL-JO DAVIESS-MERCER-PUTNAM-ROCK ISLAND-STEPHENSON-
     WHITESIDE.

     FROST ADVISORY FROM 1 AM TO 8 AM CDT FRIDAY FOR HENDERSON-
     MCDONOUGH-WARREN.

MO...NONE.
&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
507 AM CDT THU APR 5 2012

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-061015-
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-
507 AM CDT THU APR 5 2012

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...TODAY AND TONIGHT
CONDITIONS WILL BE FAVORABLE FOR FREEZING TEMPERATURES AND FROST
TONIGHT OVER A LARGE PART OF THE AREA. TEMPERATURES ALONG AND EAST
OF AN INDEPENDENCE...MONMOUTH ILLINOIS LINE ARE EXPECTED TO FALL TO
OR JUST BELOW 32 DEGREES LATE TONIGHT. THE COLD TEMPERATURES ALONG
WITH LIGHT WINDS AND CLEAR SKIES WILL ALSO CREATE FAVORABLE
CONDITIONS FOR AREAS OF FROST TO DEVELOP. THE REST OF THE AREA WILL
SEE LOWS IN THE MIDDLE 30S AND SOME PATCHY FROST.

THE COLD TEMPERATURES AND FROST WILL DAMAGE ANY SENSITIVE
VEGETATION THAT IS NOT PROTECTED TONIGHT. A FREEZE WATCH IS IN
EFFECT FOR MOST OF THE AREA LATE TONIGHT AND FRIDAY MORNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SATURDAY...ISOLATED THUNDERSTORMS WILL BE POSSIBLE. SEVERE
WEATHER IS NOT EXPECTED.

TUESDAY AND WEDNESDAY...FROST AND FREEZING TEMPERATURES WILL BE
POSSIBLE DURING THE LATE NIGHT AND EARLY MORNING HOURS.
LOW TEMPERATURES AS LOW AS THE 20S MAY RESULT IN A HARD FREEZE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.