WINTER STORM WATCH
Warning Issue Date: 1245 PM CST TUE DEC 22 2009
...FREEZING RAIN ADVISORY IN EFFECT UNTIL 6 AM CST WEDNESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH FRIDAY AFTERNOON...
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A FREEZING
RAIN ADVISORY...WHICH IS IN EFFECT UNTIL 6 AM CST WEDNESDAY. A
WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH FRIDAY AFTERNOON.
...FREEZING RAIN ADVISORY...
* TIMING...FREEZING DRIZZLE WAS ALREADY OVER NORTHERN IOWA. IT
WILL SPREAD SOUTHWARD WITH TIME...INTO CENTRAL IOWA BY THIS
EVENING.
* ICE ACCUMULATIONS...UP TO A TENTH OF INCH OF ICE ACCUMULATION
IS EXPECTED THROUGH WEDNESDAY MORNING...FROM U.S. HIGHWAY 20
NORTHWARD. LESSER AMOUNTS ARE EXPECTED TO THE SOUTH.
* VISIBILITY...THE FREEZING DRIZZLE WILL COMBINE WITH AREAS OF FOG
TO REDUCE VISIBILITIES TO LESS THAN ONE MILE...AND AS LOW AS A
HALF MILE IN AREAS.
* IMPACTS...TRAVEL WILL BE HAZARDOUS WITH AREAS OF BLACK
ICE...ESPECIALLY ON LESS TREATED ROADS. IT WILL TAKE ONLY VERY
MINOR ICE ACCUMULATIONS TO CAUSE TRAVEL DIFFICULTIES. IN
ADDITION...THE ICE CAN BE DIFFICULT TO SEE ON THE ROAD...SO A
ROAD THAT APPEARS TO BE CLEAR MAY ACTUALLY BE ICY.
...WINTER STORM WATCH...
* TIMING...ALTHOUGH FREEZING DRIZZLE MAY OCCUR LATER TODAY AND
TONIGHT...THE MOST SIGNIFICANT IMPACTS WITH THIS STORM SHOULD
OCCUR WEDNESDAY MORNING THROUGH FRIDAY.
* STORM TOTAL ICE ACCUMULATIONS...ICING OF UP TO ONE QUARTER OF
AN INCH IS EXPECTED FROM THE HIGHWAY 30 TO HIGHWAY 20
CORRIDORS THROUGH THURSDAY WITH LESSER AMOUNTS EITHER SIDE OF
THOSE AREAS.
* STORM TOTAL SNOW ACCUMULATIONS...THE PRECIPITATION SHOULD
BECOME PRIMARILY SNOW LATE THURSDAY WITH TOTAL ACCUMULATIONS
FROM 2 TO 4 INCHES FROM ATLANTIC...DES MOINES AND GRINNELL...
UP TO OVER A FOOT ALONG AND WEST OF A DENISON...TO FORT
DODGE... TO MASON CITY LINE.
* WINDS...BRISK EAST WINDS OF 15 TO 25 MPH WILL BE IN PLACE
THROUGH MUCH OF WEDNESDAY AND THURSDAY BEFORE INCREASING EVEN
FURTHER BY FRIDAY. WINDS BY THAT TIME MAY BE SUSTAINED AT 25
TO 35 MPH WITH GUSTS EVEN HIGHER.
* VISIBILITY...DURING THE PERIODS OF HEAVY SNOW THURSDAY INTO
FRIDAY...VISIBILITIES WILL GENERALLY BE LESS THAN ONE MILE AND
EVEN DOWN TO A QUARTER MILE DURING THE HEAVIEST SNOWS. WITH
INCREASING WINDS AND SNOW COINCIDENT BY FRIDAY...BLOWING SNOW
AND GREATLY REDUCED VISIBILITIES NEAR BLIZZARD CONDITIONS ARE
EXPECTED BY THAT TIME.
* IMPACTS...TRAVEL WILL BECOME INCREASINGLY DIFFICULT IN THE
WATCH AREA ON WEDNESDAY DURING THE WINTRY MIX OF PRECIPITATION
AND CONTINUE TO BE DIFFICULT INTO THURSDAY AND FRIDAY AS SNOW
ACCUMULATES AND WINDS INCREASE. IN THE HEAVIEST SNOW AREAS...
TRAVEL MAY BECOME NEARLY IMPOSSIBLE DUE TO BLOWING AND
DRIFTING SNOW THURSDAY NIGHT INTO FRIDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.
A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.
$$
FREEZING RAIN ADVISORY
Warning Issue Date: 1245 PM CST TUE DEC 22 2009
...FREEZING RAIN ADVISORY IN EFFECT UNTIL 6 AM CST WEDNESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH FRIDAY AFTERNOON...
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A FREEZING
RAIN ADVISORY...WHICH IS IN EFFECT UNTIL 6 AM CST WEDNESDAY. A
WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH FRIDAY AFTERNOON.
...FREEZING RAIN ADVISORY...
* TIMING...FREEZING DRIZZLE WAS ALREADY OVER NORTHERN IOWA. IT
WILL SPREAD SOUTHWARD WITH TIME...INTO CENTRAL IOWA BY THIS
EVENING.
* ICE ACCUMULATIONS...UP TO A TENTH OF INCH OF ICE ACCUMULATION
IS EXPECTED THROUGH WEDNESDAY MORNING...FROM U.S. HIGHWAY 20
NORTHWARD. LESSER AMOUNTS ARE EXPECTED TO THE SOUTH.
* VISIBILITY...THE FREEZING DRIZZLE WILL COMBINE WITH AREAS OF FOG
TO REDUCE VISIBILITIES TO LESS THAN ONE MILE...AND AS LOW AS A
HALF MILE IN AREAS.
* IMPACTS...TRAVEL WILL BE HAZARDOUS WITH AREAS OF BLACK
ICE...ESPECIALLY ON LESS TREATED ROADS. IT WILL TAKE ONLY VERY
MINOR ICE ACCUMULATIONS TO CAUSE TRAVEL DIFFICULTIES. IN
ADDITION...THE ICE CAN BE DIFFICULT TO SEE ON THE ROAD...SO A
ROAD THAT APPEARS TO BE CLEAR MAY ACTUALLY BE ICY.
...WINTER STORM WATCH...
* TIMING...ALTHOUGH FREEZING DRIZZLE MAY OCCUR LATER TODAY AND
TONIGHT...THE MOST SIGNIFICANT IMPACTS WITH THIS STORM SHOULD
OCCUR WEDNESDAY MORNING THROUGH FRIDAY.
* STORM TOTAL ICE ACCUMULATIONS...ICING OF UP TO ONE QUARTER OF
AN INCH IS EXPECTED FROM THE HIGHWAY 30 TO HIGHWAY 20
CORRIDORS THROUGH THURSDAY WITH LESSER AMOUNTS EITHER SIDE OF
THOSE AREAS.
* STORM TOTAL SNOW ACCUMULATIONS...THE PRECIPITATION SHOULD
BECOME PRIMARILY SNOW LATE THURSDAY WITH TOTAL ACCUMULATIONS
FROM 2 TO 4 INCHES FROM ATLANTIC...DES MOINES AND GRINNELL...
UP TO OVER A FOOT ALONG AND WEST OF A DENISON...TO FORT
DODGE... TO MASON CITY LINE.
* WINDS...BRISK EAST WINDS OF 15 TO 25 MPH WILL BE IN PLACE
THROUGH MUCH OF WEDNESDAY AND THURSDAY BEFORE INCREASING EVEN
FURTHER BY FRIDAY. WINDS BY THAT TIME MAY BE SUSTAINED AT 25
TO 35 MPH WITH GUSTS EVEN HIGHER.
* VISIBILITY...DURING THE PERIODS OF HEAVY SNOW THURSDAY INTO
FRIDAY...VISIBILITIES WILL GENERALLY BE LESS THAN ONE MILE AND
EVEN DOWN TO A QUARTER MILE DURING THE HEAVIEST SNOWS. WITH
INCREASING WINDS AND SNOW COINCIDENT BY FRIDAY...BLOWING SNOW
AND GREATLY REDUCED VISIBILITIES NEAR BLIZZARD CONDITIONS ARE
EXPECTED BY THAT TIME.
* IMPACTS...TRAVEL WILL BECOME INCREASINGLY DIFFICULT IN THE
WATCH AREA ON WEDNESDAY DURING THE WINTRY MIX OF PRECIPITATION
AND CONTINUE TO BE DIFFICULT INTO THURSDAY AND FRIDAY AS SNOW
ACCUMULATES AND WINDS INCREASE. IN THE HEAVIEST SNOW AREAS...
TRAVEL MAY BECOME NEARLY IMPOSSIBLE DUE TO BLOWING AND
DRIFTING SNOW THURSDAY NIGHT INTO FRIDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.
A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.
$$
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