HAZARDOUS WEATHER OUTLOOK
Issue Date: 421 PM CST SUN DEC 06 2009
Expiration: 415 PM CST MON DEC 07 2009

Expires:200912072215;;
FLUS43 KDMX 062211
HWODMX
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
411 PM CST SUN DEC 6 2009
IAZ023>028-033>039-044>050-057>062-070>074-072215-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE-
BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-
POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-
411 PM CST SUN DEC 6 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.
.DAY ONE...THIS AFTERNOON AND TONIGHT
A WINTER WEATHER ADVISORY IS IN EFFECT FOR THE AREA THROUGH EARLY
MONDAY MORNING. PLEASE REFER TO THE NATIONAL WEATHER SERVICE
WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY
A WINTER STORM WATCH IS IN EFFECT FOR THE AREA LATE MONDAY NIGHT
THROUGH WEDNESDAY AFTERNOON. PLEASE REFER TO THE NATIONAL WEATHER
SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS.
HEAVY SNOW IS FORECAST TO DEVELOP LATE MONDAY NIGHT AND PERSIST
THROUGHOUT THE DAY TUESDAY INTO TUESDAY EVENING. IN
ADDITION...VERY STRONG WINDS WILL DEVELOP BY TUESDAY NIGHT AND
LAST THROUGH MUCH OF THE DAY WEDNESDAY. BLOWING AND DRIFTING SNOW
WILL CAUSE VISIBILITY RESTRICTIONS AND POTENTIALLY HAZARDOUS
TRAVEL CONDITIONS...RESULTING IN THE POSSIBILITY OF BLIZZARD
CONDITIONS BY WEDNESDAY.
.SPOTTER INFORMATION STATEMENT...
SPOTTER REPORTS OF SNOWFALL AND OTHER WINTER WEATHER IMPACTS WOULD
BE APPRECIATED OVER THE NEXT SEVERAL DAYS.
$$

WINTER STORM WATCH
Issue Date: 334 PM CST SUN DEC 06 2009
Expiration: 600 PM CST WED DEC 09 2009

...SIGNIFICANT AND POTENTIALLY DANGEROUS WINTER STORM LIKELY
LATE MONDAY NIGHT THROUGH WEDNESDAY...
.A QUICK MOVING WINTER WEATHER SYSTEM WILL BRING LIGHT TO MODERATE
SNOWFALL TO MUCH OF CENTRAL IOWA TONIGHT...BUT ITS IMPACTS WILL PALE
IN COMPARISON TO THE WINTER STORM THAT IS LIKELY ACROSS THE
REGION LATE MONDAY NIGHT THROUGH WEDNESDAY. SURFACE LOW PRESSURE
WILL CROSS THE SOUTH CENTRAL ROCKIES MONDAY NIGHT...THEN
STRENGTHEN SIGNIFICANTLY WHILE CURVING NORTHEAST TO THE SOUTHERN
GREAT LAKES REGION BY WEDNESDAY MORNING. THE FORECAST PATH AND
INTENSITY PUTS CENTRAL IOWA IN THE CROSS HAIRS OF A DANGEROUS
WINTER STORM THAT HAS THE POTENTIAL TO EVENTUALLY PRODUCE BLIZZARD
CONDITIONS FOR PORTIONS OF THE REGION...ESPECIALLY AFTER THE
SNOWFALL HAS ENDED ON WEDNESDAY.
IAZ023-033-034-044>046-057-058-070-071-070545-
/O.NEW.KDMX.WS.A.0006.091208T0600Z-091210T0000Z/
/O.CON.KDMX.WW.Y.0022.000000T0000Z-091207T0900Z/
POCAHONTAS-SAC-CALHOUN-CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE-
CASS-ADAIR-
INCLUDING THE CITIES OF...POCAHONTAS...SAC CITY...ROCKWELL CITY...
DENISON...CARROLL...JEFFERSON...AUDUBON...GUTHRIE CENTER...
ATLANTIC...GREENFIELD
334 PM CST SUN DEC 6 2009
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
MONDAY...
...WINTER STORM WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH
WEDNESDAY AFTERNOON...
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM LATE MONDAY NIGHT THROUGH
WEDNESDAY AFTERNOON. A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN
EFFECT UNTIL 3 AM CST MONDAY.
* SHORT TERM TRENDS: LIGHT SNOW WILL MOVE NORTHEAST ACROSS THE
REGION BY 6 PM...WITH SOME LIGHT ACCUMULATIONS OCCURRING.
* TIMING: LIGHT TO MODERATE SNOWFALL CAN BE EXPECTED BETWEEN 6 PM
AND MIDNIGHT TONIGHT. SNOWFALL WILL DIMINISH IN INTENSITY AFTER
MIDNIGHT AND END FOR MOST AREAS BY 3 AM MONDAY MORNING. A MORE
SIGNIFICANT AND POTENTIALLY DANGEROUS WINTER STORM IS LIKELY
LATE MONDAY NIGHT THROUGH WEDNESDAY.
* STORM TOTAL ACCUMULATIONS: SNOW ACCUMULATIONS OF 2 TO 4 INCHES
ARE EXPECTED TONIGHT WITH HIGHEST AMOUNTS FROM ATLANTIC TO
DENISON AND ROCKWELL CITY. SNOW ACCUMULATIONS OF 8 TO 12 INCHES
ARE LIKELY WITH THE WINTER STORM MONDAY NIGHT THROUGH EARLY
WEDNESDAY.
* WINDS/VISIBILITY: NORTH TO NORTHWEST WINDS OF 25 TO 35 MPH WITH
GUSTS AROUND 45 MPH ARE LIKELY BY LATE TUESDAY NIGHT AND
CONTINUING THROUGH WEDNESDAY. VISIBILITY RESTRICTIONS LATE
TUESDAY THROUGH WEDNESDAY COULD BE LESS THAN ONE QUARTER MILE IN
BLOWING SNOW.
* IMPACTS: SINCE PAVEMENT AND BRIDGE TEMPERATURES WILL BE BELOW
FREEZING...SLICK TRAVEL CONDITIONS ARE EXPECTED...ESPECIALLY ON
LESS TREATED ROADS AND WALKING SURFACES. THE MONDAY NIGHT
THROUGH WEDNESDAY POTENTIAL WINTER STORM HAS THE CAPABILITY OF
COMBINING HEAVY SNOWFALL WITH STRONG WINDS TO CREATE NEAR
BLIZZARD CONDITIONS...ESPECIALLY TUESDAY NIGHT. HEAVY SNOW
ACCUMULATIONS ALONE WOULD SIGNIFICANTLY IMPACT TRAVEL AND LIKELY
RESULT IN ROAD CLOSURES. EVEN AFTER THE SNOWFALL ENDS WEDNESDAY
MORNING...THE STRONG GUSTY WINDS HAVE THE POTENTIAL TO PRODUCE
CONSIDERABLE BLOWING AND DRIFTING SNOW AND NEAR WHITEOUT
CONDITIONS THROUGH THE DAY WEDNESDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS...IN THIS CASE HEAVY SNOW AND
STRONG WINDS...THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE
LATEST FORECASTS.
$$