HAZARDOUS WEATHER OUTLOOK
Issue Date: 520 AM CST MON DEC 07 2009
Expiration: 600 AM CST TUE DEC 08 2009

Expires:200912081200;;
FLUS43 KDMX 071114
HWODMX
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
514 AM CST MON DEC 7 2009
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086-
092>097-081200-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
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-MAHASKA-ADAMS-UNION-
CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-
DAVIS-
514 AM CST MON DEC 7 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.
.DAY ONE...TODAY AND TONIGHT
SNOW IS EXPECTED TO SPREAD INTO SOUTHERN AND CENTRAL IOWA TONIGHT. A
WINTER STORM WATCH IS IN EFFECT FOR THE ENTIRE AREA. PLEASE REFER
TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES
FOR FURTHER DETAILS.
.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY
AN INTENSE SYSTEM WILL AFFECT ALL OF CENTRAL IOWA ON TUESDAY INTO
WEDNESDAY. POTENTIALLY DANGEROUS CONDITIONS ARE FORECAST FROM
HEAVY SNOW AND VERY STRONG WINDS. A WINTER STORM WATCH IS IN
EFFECT FOR THE AREA. PLEASE REFER TO THE NATIONAL WEATHER SERVICE
WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS.
.SPOTTER INFORMATION STATEMENT...
SPOTTER REPORTS OF SNOWFALL AND OTHER WINTER WEATHER IMPACTS WOULD
BE GREATLY APPRECIATED FROM TONIGHT INTO WEDNESDAY.
$$

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.
IAZ024>028-035>039-047>050-059>062-072>074-070545-
/O.NEW.KDMX.WS.A.0006.091208T0600Z-091210T0000Z/
/O.CON.KDMX.WW.Y.0022.091207T0000Z-091207T1200Z/
HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER-HAMILTON-HARDIN-
GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-DALLAS-POLK-JASPER-
POWESHIEK-MADISON-WARREN-MARION-
INCLUDING THE CITIES OF...HUMBOLDT...CLARION...HAMPTON...
ALLISON...WAVERLY...FORT DODGE...WEBSTER CITY...ELDORA...
GRUNDY CENTER...WATERLOO...BOONE...AMES...MARSHALLTOWN...TOLEDO...
ADEL...DES MOINES...NEWTON...GRINNELL...WINTERSET...INDIANOLA...
KNOXVILLE
334 PM CST SUN DEC 6 2009
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 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 FROM 6 PM THIS EVENING TO 6 AM CST MONDAY.
* SHORT TERM TRENDS: SOME PATCHY LIGHT SNOW WILL DEVELOP OVER
AREAS ALONG AND SOUTH OF HIGHWAY 30 AND WEST OF INTERSTATE 35 BY
6 PM.
* TIMING: LIGHT TO MODERATE SNOWFALL CAN BE EXPECTED TO SPREAD
NORTHEAST ACROSS THE REGION BETWEEN 6 PM AND MIDNIGHT TONIGHT.
SNOWFALL WILL DIMINISH IN INTENSITY AFTER 3 AM AND END FOR
MOST AREAS BY 6 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 DALLAS CENTER TO
BOONE...NORTHEAST TO WATERLOO. 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.
$$