Freeze Warning 3, NWS St. Louis, MO

Adams County, IL, Bond County, IL, Brown County, IL, Calhoun County, IL, Clinton County, IL, Fayette County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Pike County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Knox County, MO, Lewis County, MO, Lincoln County, MO, Madison County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Ralls County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Shelby County, MO, Warren County, MO, Washington County, MO

000 
WWUS73 KLSX 060839
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
339 AM CDT FRI APR 6 2007

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-062145-
/O.CON.KLSX.FZ.W.0002.000000T0000Z-070406T1400Z/
/O.CON.KLSX.FZ.W.0003.070407T0500Z-070407T1400Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL-
CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX-LEWIS-
SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE-
CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN-
ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...
BOWLING GREEN...COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...
UNION...ST LOUIS...FARMINGTON
339 AM CDT FRI APR 6 2007

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING...
...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CDT SATURDAY...

A FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING. A
FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CDT SATURDAY. 

AN UNSEASONABLY COLD AIRMASS WILL REMAIN ACROSS THE MIDWEST
THROUGH THE WEEKEND. MOST LOCATIONS IN MISSOURI AND ILLINOIS WILL
EXPERIENCE A HARD FREEZE TONIGHT WITH RECORD LOW TEMPERATURES
IN THE TEENS AND LOWER 20S.

THESE SUB-FREEZING TEMPERATURES WILL RESULT IN HEAVY DAMAGE TO
MOST PLANTS...ESPECIALLY UNPROTECTED FRUIT BLOSSOMS AND OTHER
TENDER VEGETATION. THOSE WITH AGRICULTURAL INTERESTS IN THE WARNED
AREA SHOULD PLAN TO PROTECT THEIR VEGETATION FROM THESE DAMAGING
COLD TEMPERATURES.

THE FREEZE WARNING WILL LIKELY BE EXTENDED TO INCLUDE SATURDAY
NIGHT AS TEMPERATURES ARE EXPECTED TO DROP WELL BELOW FREEZING.

$$

CVKING

000 
WWUS73 KLSX 061407
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
907 AM CDT FRI APR 6 2007

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-070215-
/O.EXP.KLSX.FZ.W.0002.000000T0000Z-070406T1400Z/
/O.CON.KLSX.FZ.W.0003.070407T0500Z-070407T1400Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL-
CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX-LEWIS-
SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE-
CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN-
ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...
BOWLING GREEN...COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...
UNION...ST LOUIS...FARMINGTON
907 AM CDT FRI APR 6 2007

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CDT SATURDAY...
...FREEZE WARNING HAS EXPIRED...

THE FREEZE WARNING THAT WAS IN EFFECT OVERNIGHT THROUGH EARLY THIS
MORNING HAS NOW EXPIRED. A FREEZE WARNING REMAINS IN EFFECT FROM
MIDNIGHT TONIGHT TO 9 AM CDT SATURDAY.

AN UNSEASONABLY COLD AIRMASS WILL REMAIN ACROSS THE MIDWEST
THROUGH THE WEEKEND. MOST LOCATIONS IN MISSOURI AND ILLINOIS WILL
EXPERIENCE A HARD FREEZE TONIGHT WITH RECORD LOW TEMPERATURES IN
THE TEENS AND LOWER 20S.

THESE SUB-FREEZING TEMPERATURES WILL RESULT IN HEAVY DAMAGE TO
MOST PLANTS...ESPECIALLY UNPROTECTED FRUIT BLOSSOMS AND OTHER
TENDER VEGETATION. THOSE WITH AGRICULTURAL INTERESTS IN THE
WARNED AREA SHOULD PLAN TO PROTECT THEIR VEGETATION FROM THESE
DAMAGING COLD TEMPERATURES.

THE FREEZE WARNING WILL LIKELY BE EXTENDED TO INCLUDE SATURDAY
NIGHT AS TEMPERATURES ARE EXPECTED TO DROP WELL BELOW FREEZING.

A FREEZE WARNING IS ISSUED WHEN SUB-FREEZING TEMPERATURES ARE
FORECAST TO THREATEN OUTDOOR PLANTS. THOSE WITH AGRICULTURAL
INTERESTS IN THE WARNED AREA ARE ADVISED TO HARVEST OR PROTECT
TENDER VEGETATION. ALSO...POTTED PLANTS NORMALLY LEFT OUTDOORS
SHOULD BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD.

$$

GLASS

000 
WWUS73 KLSX 062020
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
320 PM CDT FRI APR 6 2007

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-070830-
/O.NEW.KLSX.FZ.W.0004.070408T0000Z-070408T1500Z/
/O.EXT.KLSX.FZ.W.0003.070407T0000Z-070407T1500Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL-
CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX-LEWIS-
SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE-
CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN-
ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...
BOWLING GREEN...COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...
UNION...ST LOUIS...FARMINGTON
320 PM CDT FRI APR 6 2007

...FREEZE WARNING NOW IN EFFECT FROM 7 PM THIS EVENING TO 10 AM
CDT SATURDAY...
...FREEZE WARNING IN EFFECT FROM 7 PM SATURDAY TO 10 AM CDT
SUNDAY...

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 7 PM SATURDAY TO 10 AM CDT
SUNDAY. THE FREEZE WARNING IS NOW IN EFFECT FROM 7 PM THIS
EVENING TO 10 AM CDT SATURDAY. 

AN UNSEASONABLY COLD AIRMASS WILL REMAIN ACROSS THE MIDWEST
THROUGH THE WEEKEND. MOST LOCATIONS IN MISSOURI AND ILLINOIS WILL
EXPERIENCE A HARD FREEZE TONIGHT WITH RECORD LOW TEMPERATURES IN
THE UPPER TEENS AND LOWER 20S. ANOTHER HARD FREEZE IS EXPECTED ON
SATURDAY NIGHT INTO EARLY SUNDAY MORNING WHEN RECORD LOW
TEMPERATURES IN THE UPPER TEENS TO MIDDLE 20S ARE FORECAST.

THESE SUB-FREEZING TEMPERATURES WILL RESULT IN HEAVY DAMAGE TO
MOST PLANTS...ESPECIALLY UNPROTECTED FRUIT BLOSSOMS AND OTHER
TENDER VEGETATION. THOSE WITH AGRICULTURAL INTERESTS IN THE
WARNED AREA SHOULD PLAN TO PROTECT THEIR VEGETATION FROM THESE
DAMAGING COLD TEMPERATURES.

THE FREEZE WARNING WILL LIKELY BE EXTENDED TO INCLUDE SUNDAY NIGHT AS
TEMPERATURES ARE EXPECTED TO DROP WELL BELOW FREEZING.

A FREEZE WARNING IS ISSUED WHEN SUB-FREEZING TEMPERATURES ARE
FORECAST TO THREATEN OUTDOOR PLANTS. THOSE WITH AGRICULTURAL
INTERESTS IN THE WARNED AREA ARE ADVISED TO HARVEST OR PROTECT
TENDER VEGETATION. ALSO...POTTED PLANTS NORMALLY LEFT OUTDOORS
SHOULD BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD.

$$

GLASS

000 
WWUS73 KLSX 070834
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
334 AM CDT SAT APR 7 2007

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-072130-
/O.CON.KLSX.FZ.W.0003.000000T0000Z-070407T1500Z/
/O.CON.KLSX.FZ.W.0004.070408T0000Z-070408T1500Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL-
CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX-LEWIS-
SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE-
CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN-
ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...
BOWLING GREEN...COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...
UNION...ST LOUIS...FARMINGTON
334 AM CDT SAT APR 7 2007

...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...
...FREEZE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
10 AM CDT SUNDAY...

A FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM CDT THIS MORNING.
A FREEZE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
10 AM CDT SUNDAY. 

A RECORD BREAKING COLD AIRMASS WILL REMAIN ACROSS THE MIDWEST
THROUGH THE HOLIDAY WEEKEND. MOST LOCATIONS IN MISSOURI AND
ILLINOIS EXPERIENCED A HARD FREEZE OVERNIGHT WITH RECORD LOW
TEMPERATURES IN THE UPPER TEENS AND LOWER 20S. ANOTHER HARD FREEZE
IS EXPECTED TONIGHT INTO EARLY SUNDAY MORNING WHEN RECORD LOW
TEMPERATURES IN THE UPPER TEENS TO MIDDLE 20S ARE ONCE AGAIN
FORECAST.

THESE SUB-FREEZING TEMPERATURES WILL RESULT IN HEAVY DAMAGE TO
MOST PLANTS...ESPECIALLY UNPROTECTED FRUIT BLOSSOMS AND OTHER
TENDER VEGETATION. THOSE WITH AGRICULTURAL INTERESTS IN THE
WARNED AREA SHOULD PLAN TO PROTECT THEIR VEGETATION FROM THESE
DAMAGING COLD TEMPERATURES.

THE FREEZE WARNING WILL LIKELY BE EXTENDED TO INCLUDE SUNDAY
NIGHT AS TEMPERATURES ARE EXPECTED TO DROP WELL BELOW FREEZING.

A FREEZE WARNING IS ISSUED WHEN SUB-FREEZING TEMPERATURES ARE
FORECAST TO THREATEN OUTDOOR PLANTS. THOSE WITH AGRICULTURAL
INTERESTS IN THE WARNED AREA ARE ADVISED TO HARVEST OR PROTECT
TENDER VEGETATION. ALSO...POTTED PLANTS NORMALLY LEFT OUTDOORS
SHOULD BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD.

$$

CVKING

000 
WWUS73 KLSX 071431
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
931 AM CDT SAT APR 7 2007

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-080245-
/O.EXT.KLSX.FZ.W.0003.000000T0000Z-070407T1700Z/
/O.CON.KLSX.FZ.W.0004.070408T0000Z-070408T1500Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL-
CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX-LEWIS-
SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE-
CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN-
ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...
BOWLING GREEN...COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...
UNION...ST LOUIS...FARMINGTON
931 AM CDT SAT APR 7 2007

...FREEZE WARNING NOW IN EFFECT UNTIL NOON CDT TODAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
10 AM CDT SUNDAY...

THE FREEZE WARNING IS NOW IN EFFECT UNTIL NOON CDT TODAY. A
FREEZE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM
CDT SUNDAY. 

A RECORD BREAKING COLD AIRMASS WILL REMAIN ACROSS THE MIDWEST
THROUGH THE HOLIDAY WEEKEND. MOST LOCATIONS IN MISSOURI AND
ILLINOIS EXPERIENCED A HARD FREEZE OVERNIGHT WITH RECORD LOW
TEMPERATURES IN THE UPPER TEENS AND LOWER 20S. ANOTHER HARD
FREEZE IS EXPECTED TONIGHT INTO EARLY SUNDAY MORNING WHEN RECORD
LOW TEMPERATURES IN THE UPPER TEENS TO MIDDLE 20S ARE ONCE AGAIN
FORECAST.

THESE SUB-FREEZING TEMPERATURES WILL RESULT IN HEAVY DAMAGE TO
MOST PLANTS...ESPECIALLY UNPROTECTED FRUIT BLOSSOMS AND OTHER
TENDER VEGETATION. THOSE WITH AGRICULTURAL INTERESTS IN THE
WARNED AREA SHOULD PLAN TO PROTECT THEIR VEGETATION FROM THESE
DAMAGING COLD TEMPERATURES.

THE FREEZE WARNING WILL LIKELY BE EXTENDED TO INCLUDE SUNDAY
NIGHT AS TEMPERATURES ARE EXPECTED TO DROP WELL BELOW FREEZING.

A FREEZE WARNING IS ISSUED WHEN SUB-FREEZING TEMPERATURES ARE
FORECAST TO THREATEN OUTDOOR PLANTS. THOSE WITH AGRICULTURAL
INTERESTS IN THE WARNED AREA ARE ADVISED TO HARVEST OR PROTECT
TENDER VEGETATION. ALSO...POTTED PLANTS NORMALLY LEFT OUTDOORS
SHOULD BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD.

$$

GLASS

000 
WWUS73 KLSX 071705
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
1205 PM CDT SAT APR 7 2007

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-080515-
/O.EXP.KLSX.FZ.W.0003.000000T0000Z-070407T1700Z/
/O.CON.KLSX.FZ.W.0004.070408T0000Z-070408T1500Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL-
CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX-LEWIS-
SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE-
CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN-
ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...
BOWLING GREEN...COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...
UNION...ST LOUIS...FARMINGTON
1205 PM CDT SAT APR 7 2007

...FREEZE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
10 AM CDT SUNDAY...
...FREEZE WARNING HAS EXPIRED...

THE FREEZE WARNING IS NO LONGER IN EFFECT FOR TODAY. A FREEZE WARNING
REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM CDT SUNDAY. 

A RECORD BREAKING COLD AIRMASS WILL REMAIN ENTRENCHED ACROSS THE
MIDWEST THROUGH THE HOLIDAY WEEKEND. MOST LOCATIONS IN MISSOURI
AND ILLINOIS EXPERIENCED A HARD FREEZE OVERNIGHT WITH RECORD LOW
TEMPERATURES IN THE UPPER TEENS AND LOWER 20S. ANOTHER HARD FREEZE
IS EXPECTED TONIGHT INTO EARLY SUNDAY MORNING WHEN RECORD LOW
TEMPERATURES IN THE UPPER TEENS TO MIDDLE 20S ARE ONCE AGAIN
FORECAST.

THESE SUB-FREEZING TEMPERATURES WILL RESULT IN HEAVY DAMAGE TO
MOST PLANTS...ESPECIALLY UNPROTECTED FRUIT BLOSSOMS AND OTHER
TENDER VEGETATION. THOSE WITH AGRICULTURAL INTERESTS IN THE
WARNED AREA SHOULD PLAN TO PROTECT THEIR VEGETATION FROM THESE
DAMAGING COLD TEMPERATURES.

THE FREEZE WARNING WILL LIKELY BE EXTENDED TO INCLUDE SUNDAY
NIGHT AS TEMPERATURES ARE EXPECTED TO DROP WELL BELOW FREEZING.

A FREEZE WARNING IS ISSUED WHEN SUB-FREEZING TEMPERATURES ARE
FORECAST TO THREATEN OUTDOOR PLANTS. THOSE WITH AGRICULTURAL
INTERESTS IN THE WARNED AREA ARE ADVISED TO HARVEST OR PROTECT
TENDER VEGETATION. ALSO...POTTED PLANTS NORMALLY LEFT OUTDOORS
SHOULD BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD.

$$

GLASS

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ST LOUIS MO
ISSUED BY NATIONAL WEATHER SERVICE LINCOLN IL
304 PM CDT THU APR 5 2007

.DISCUSSION...

SPRAWLING SURFACE RIDGE WILL HOLD IN PLACE ACROSS THE PLAINS INTO
THE BEGINNING OF NEXT WEEK. THIS WILL RESULT IN CONTINUED NORTHWEST
LOW LEVEL FLOW AND COLDER THAN NORMAL TEMPERATURES. WATER VAPOR
LOOPS THIS AFTERNOON SHOW AN UPPER SHORTWAVE COMING OUT OF THE
CENTRAL ROCKIES AND HEADING INTO THE CENTRAL PLAINS. REGIONAL RADAR
LOOPS SHOW THE ASSOCIATED PRECIPITATION EXTENDING FROM CENTRAL
NEBRASKA INTO SOUTHEAST KANSAS. THIS BAND IS EXPECTED SKIRT
SOUTHWESTERN AND EXTREME SOUTHERN MISSOURI...LEAVING THE EASTERN
PORTIONS OF THE STATE DRY. MID AND HIGH LEVEL CLOUDS WITH THIS
SYSTEM ARE ALREADY INCREASING OVER CENTRAL MISSOURI...AND THIS
MOISTURE WILL CONTINUE TO OVERSPREAD THE AREA TONIGHT.

THE NEXT SHORTWAVE OF INTEREST IS NOW JUST NORTH OF THE CANADIAN
BORDER AND WILL COME THROUGH THE AREA ON FRIDAY. THIS SYSTEM IS
ALSO EXPECTED TO BE DRY OVER EASTERN MISSOURI/SOUTHWESTERN
ILLINOIS... BUT WILL BRING A REINFORCING SHOT OF COLD AIR WITH IT.
MODEL HUMIDITY FIELDS SUGGEST THAT MOST OF THE OPAQUE CLOUD COVER
WILL STAY TO OUR NORTHEAST OVER ILLINOIS...SO THE POTENTIAL EXISTS
FOR SOME RECORD LOW TEMPERATURES ACROSS THE AREA FRIDAY NIGHT.
SIMILAR CONDITIONS WILL EXIST SATURDAY NIGHT...BUT THERE MIGHT BE A
FEW MORE CLOUDS AROUND. LOW TEMPERATURES SUNDAY MORNING MIGHT NOT BE
QUITE SO COLD...BUT RECORD LOWS WILL STILL BE IN JEOPARDY. WILL
CONTINUE WITH FREEZE WARNINGS FOR BOTH TONIGHT AND FRIDAY NIGHT.

IN THE LONGER RANGE...THE EXTENDED RANGE MODELS HAVE BEEN BRINGING A
STRONG UPPER LEVEL SHORTWAVE FROM THE NORTHERN ROCKIES INTO THE
CENTRAL PLAINS FOR THE PAST COUPLE OF MODEL RUNS. THERE IS STILL
SOME DISAGREEMENT ABOUT HOW FAR SOUTH THE WAVE WILL DIG...BUT THE
MODELS DO AGREE THAT ENOUGH WARM ADVECTION SHOULD TAKE PLACE FOR THE
PRECIPITATION TO BE MAINLY LIQUID OVER THE AREA. BOTH THE ECMWF AND
GFS MODELS INDICATE THAT A WARM FRONT WILL BE DEVELOPING AHEAD OF
THE SYSTEM MONDAY NIGHT AND TUESDAY...WITH PRECIPITATION CHANCES
BEGINNING TO INCREASE BY THEN ALONG THE RESULTANT LOW LEVEL
BAROCLINIC ZONE. THIS SYSTEM SHOULD THEN HANG AROUND THROUGH
WEDNESDAY.

CHURCHILL

&&

.AVIATION...
FOR THE 18Z TAFS...
SURFACE RIDGE OF HIGH PRESSURE COVERED THE GREAT PLAINS AND MIDWEST
THIS MORNING AND DOMINATED OUR WEATHER PATTERN. THIS SYSTEM WILL
REMAIN NEARLY STATIONARY THROUGH FRIDAY AND CONTINUE TO DOMINATE OUR
WEATHER. SATELLITE IMAGERY WAS SHOWING THE AREA OF STRATUS PRODUCING
MVFR CEILINGS OF 2 TO 3 THOUSAND FEET WAS ERODING ACROSS THE AREA
AND MOVING SOUTHEASTWARD. EXPECT CENTRAL AND NORTHERN MO TO CLEAR
OUT BY LATE MORNING AND STL AREA TO GO SCATTERED BY NOON. LARGE MASS
OF CLOUDS ACROSS THE CENTRAL PLAINS WILL SPREAD ACROSS THE REGION
DURING THE AFTERNOON HOURS. EXPECT VFR CONDITIONS TO PERSIST ACROSS
THE AREA TONIGHT THROUGH 18Z FRIDAY.

TPS

&&

.CLIMATE...

THE POTENTIAL EXISTS FOR RECORD LOW TEMPERATURES TO BE BROKEN FRIDAY
NIGHT AND SATURDAY NIGHT. THE STANDING RECORDS ARE...

ST. LOUIS...FRIDAY NIGHT 26 DEGREES IN 1939 / SATURDAY NIGHT 22
DEGREES IN 1972.

COLUMBIA...FRIDAY NIGHT 25 DEGREES IN 1898 / SATURDAY NIGHT 24
DEGREES IN 1997.

QUINCY...FRIDAY NIGHT 23 DEGREES IN 1990 / SATURDAY NIGHT 21 DEGREES
IN 1972.

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM CDT FRIDAY FOR
     AUDRAIN-BOONE-CALLAWAY-COLE-CRAWFORD-FRANKLIN-GASCONADE-
     IRON-JEFFERSON-KNOX-LEWIS-LINCOLN-MADISON-MARION-MONITEAU-
     MONROE-MONTGOMERY-OSAGE-PIKE-RALLS-REYNOLDS-SHELBY-ST.
     CHARLES-ST. FRANCOIS-ST. LOUIS-ST. LOUIS CITY-STE.
     GENEVIEVE-WARREN-WASHINGTON.

     FREEZE WARNING FROM MIDNIGHT FRIDAY NIGHT TO 9 AM CDT SATURDAY
     FOR AUDRAIN-BOONE-CALLAWAY-COLE-CRAWFORD-FRANKLIN-GASCONADE-
     IRON-JEFFERSON-KNOX-LEWIS-LINCOLN-MADISON-MARION-MONITEAU-
     MONROE-MONTGOMERY-OSAGE-PIKE-RALLS-REYNOLDS-SHELBY-ST.
     CHARLES-ST. FRANCOIS-ST. LOUIS-ST. LOUIS CITY-STE.
     GENEVIEVE-WARREN-WASHINGTON.

IL...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM CDT FRIDAY FOR
     ADAMS IL-BOND IL-BROWN IL-CALHOUN IL-CLINTON IL-FAYETTE IL-
     GREENE IL-JERSEY IL-MACOUPIN IL-MADISON IL-MARION IL-MONROE
     IL-MONTGOMERY IL-PIKE IL-RANDOLPH IL-ST. CLAIR IL-
     WASHINGTON IL.

     FREEZE WARNING FROM MIDNIGHT FRIDAY NIGHT TO 9 AM CDT SATURDAY
     FOR ADAMS IL-BOND IL-BROWN IL-CALHOUN IL-CLINTON IL-FAYETTE
     IL-GREENE IL-JERSEY IL-MACOUPIN IL-MADISON IL-MARION IL-
     MONROE IL-MONTGOMERY IL-PIKE IL-RANDOLPH IL-ST. CLAIR IL-
     WASHINGTON IL.

&&

WFO ILX/LSX

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
605 AM CDT THU APR 5 2007

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-061115-
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL-
CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX-LEWIS-
SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE-
CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN-
ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
605 AM CDT THU APR 5 2007

...FREEZE WARNING UNTIL 9 AM CDT THIS MORNING...
...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM CDT FRIDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND
CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS.

.DAY ONE...TODAY AND TONIGHT

A LARGE CANADIAN HIGH PRESSURE SYSTEM WILL CONTINUE TO BRING
UNSEASONABLY COLD WEATHER TO THE BI-STATE AREA TODAY AND TONIGHT.
SUB FREEZING TEMPERATURES WILL CONTINUE ACROSS THE AREA UNTIL
AROUND 9 AM THIS MORNING...THEN RETURN LATE TONIGHT AND EARLY
FRIDAY MORNING. LOW TEMPERATURES TONIGHT WILL BE IN THE 20S
ACROSS MOST OF THE REGION. THIS HARD FREEZE WILL HAVE A
DETRIMENTAL IMPACT ON CROPS AND TENDER VEGETATION.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

BELOW FREEZING TEMPERATURES CAN BE EXPECTED EARLY FRIDAY MORNING.
THE UNSEASONABLY COLD WEATHER PATTERN WILL CONTINUE THROUGH THE
WEEKEND WITH TEMPERATURES FALLING INTO THE LOWER TO MIDDLE 20S LATE
FRIDAY NIGHT AND SATURDAY NIGHT...THEN LOWS ON SUNDAY NIGHT WILL
BE IN THE UPPER 20S TO LOWER 30S.

THERE IS A CHANCE OF THUNDERSTORMS TUESDAY AND TUESDAY NIGHT AS
WARMER AND MORE MOIST AIR RETURNS TO THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT.

GKS