WINTER WEATHER ADVISORY
Issue Date: 340 PM CST FRI DEC 25 2009
Expiration: 600 AM CST SAT DEC 26 2009

...WINTER STORM CONTINUES THROUGH EARLY SATURDAY...
.INTENSE LOW PRESSURE OVER WESTERN IOWA WILL GRADUALLY WEAKEN TONIGHT
AS IT SPINS OVER IOWA. LIGHT TO MODERATE SNOW IS EXPECTED THROUGH
THE EVENING AND OVERNIGHT HOURS. GUSTY TO OCCASIONALLY STRONG
WINDS ARE EXPECTED AND WILL CAUSE CONSIDERABLE BLOWING AND
DRIFTING OF SNOW WITH DANGEROUS TRAVEL CONDITIONS IN PARTS OF
WESTERN IOWA.
IAZ005-006-016-024-025-035-036-046>048-058>060-070>073-081>083-
092>094-260545-
/O.CAN.KDMX.WS.W.0008.000000T0000Z-091226T1200Z/
/O.EXA.KDMX.WW.Y.0027.000000T0000Z-091226T1200Z/
KOSSUTH-WINNEBAGO-HANCOCK-HUMBOLDT-WRIGHT-WEBSTER-HAMILTON-GREENE-
BOONE-STORY-GUTHRIE-DALLAS-POLK-CASS-ADAIR-MADISON-WARREN-ADAMS-
UNION-CLARKE-TAYLOR-RINGGOLD-DECATUR-
INCLUDING THE CITIES OF...ALGONA...FOREST CITY...GARNER...
HUMBOLDT...CLARION...FORT DODGE...WEBSTER CITY...JEFFERSON...
BOONE...AMES...GUTHRIE CENTER...ADEL...DES MOINES...ATLANTIC...
GREENFIELD...WINTERSET...INDIANOLA...CORNING...CRESTON...
OSCEOLA...BEDFORD...MOUNT AYR...LEON
340 PM CST FRI DEC 25 2009
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST SATURDAY...
...WINTER STORM WARNING IS CANCELLED...
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL
6 AM CST SATURDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED.
* SHORT TERM TRENDS...SNOW AND OCCASIONAL BLOWING SNOW WILL
CONTINUE OVER THE ADVISORY AREA THROUGH THE EVENING AND
OVERNIGHT HOURS.
* WINDS AND VISIBILITY...WINDS AT 15 TO 25 MPH WILL CAUSE SOME
BLOWING AND DRIFTING OF SNOW. VISIBILITY REDUCTIONS TO LESS THAN
ONE HALF MILE AT TIMES IS POSSIBLE.
* IMPACTS...OCCASIONAL DIFFICULT TRAVEL CONDITIONS ARE EXPECTED
THIS AFTERNOON THROUGH TONIGHT AS VISIBILITY DROPS DURING
PERIODS OF MORE INTENSE SNOW.
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.
$$

HAZARDOUS WEATHER OUTLOOK
Issue Date: 1027 AM CST FRI DEC 25 2009
Expiration: 600 AM CST SAT DEC 26 2009

Expires:200912261200;;
FLUS43 KDMX 251621
HWODMX
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
1021 AM CST FRI DEC 25 2009
IAZ004>006-015-016-023>025-033>036-044>048-057>060-070>073-081>083-
092>094-261200-
EMMET-KOSSUTH-WINNEBAGO-PALO ALTO-HANCOCK-POCAHONTAS-HUMBOLDT-WRIGHT-
SAC-CALHOUN-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-BOONE-STORY-
AUDUBON-GUTHRIE-DALLAS-POLK-CASS-ADAIR-MADISON-WARREN-ADAMS-UNION-
CLARKE-TAYLOR-RINGGOLD-DECATUR-
1021 AM CST FRI DEC 25 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR MUCH OF CENTRAL AND WESTERN
IOWA.
.DAY ONE...TODAY AND TONIGHT
OCCASIONAL SNOW WILL CONTINUE TO AFFECT THE AREA TODAY AND
TONIGHT...WITH ADDITIONAL ACCUMULATIONS OF TWO TO FOUR INCHES BY
DAYBREAK SATURDAY. STRONG NORTHWEST WINDS WILL ALSO CAUSE BLOWING
AND DRIFTING OF SNOW AND REDUCE VISIBILITY CONSIDERABLY AT TIMES.
A WINTER STORM WARNING REMAINS IN EFFECT FOR THE AREA. PLEASE
REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT
WEATHER.GOV/DESMOINES FOR FURTHER DETAILS.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
LIGHT SNOWFALL IS EXPECTED SATURDAY WITH MINOR BLOWING AND
DRIFTING.  ADDITIONAL SNOW ACCUMULATIONS SHOULD BE AN INCH OR LESS.
.SPOTTER INFORMATION STATEMENT...
AN EMERGENCY MANAGEMENT CONFERENCE CALL WILL BE CONDUCTED AT 1100 AM.
SPOTTER ACTIVATION WILL NOT BE NEEDED...BUT SNOWFALL AND ICE
ACCUMULATION REPORTS ARE APPRECIATED AND ENCOURAGED.
$$

WINTER STORM WARNING
Issue Date: 411 AM CST THU DEC 24 2009
Expiration: 600 AM CST SAT DEC 26 2009

...POTENTIALLY CRIPPLING WINTER STORM TODAY THROUGH FRIDAY NIGHT...
.THE WINTRY MIX OF PRECIPITATION WILL GRADUALLY TRANSITION TO ALL
SNOW FROM NORTHWEST TO SOUTHEAST TODAY. THE PRECIPITATION THIS
MORNING WILL GENERALLY BE LIGHT BEFORE ANOTHER WAVE OF MOISTURE
ARRIVES FROM SOUTHERN PLAINS DURING THE AFTERNOON HOURS. THE MOST
INTENSE PERIODS OF SNOW ARE EXPECTED TONIGHT INTO FRIDAY THOUGH
ACCUMULATING SNOWFALL MAY LINGER INTO SATURDAY. IN
ADDITION...INCREASING NORTHWEST WINDS ARE EXPECTED TONIGHT INTO
FRIDAY WHICH WOULD CAUSE CONSIDERABLE BLOWING AND DRIFTING OF SNOW.
IAZ037>039-047>050-241815-
/O.CAN.KDMX.WW.Y.0026.000000T0000Z-091224T1200Z/
/O.UPG.KDMX.WS.A.0007.091224T1800Z-091226T0600Z/
/O.EXB.KDMX.WS.W.0008.091224T1800Z-091226T1200Z/
HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-
INCLUDING THE CITIES OF...ELDORA...GRUNDY CENTER...WATERLOO...
BOONE...AMES...MARSHALLTOWN...TOLEDO
411 AM CST THU DEC 24 2009
...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO 6 AM CST
SATURDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS UPGRADED THE WINTER
STORM WATCH TO A WINTER STORM WARNING FOR SNOW AND BLOWING
SNOW...WHICH IS IN EFFECT FROM NOON TODAY TO 6 AM CST SATURDAY.
THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED.
* SHORT TERM TRENDS...TEMPERATURES HAVE RISEN TO ABOVE FREEZING AT
MOST LOCATIONS THEREFORE ANY PRECIPITATION THAT FALLS WILL BE IN
THE FORM OF RAIN EARLY THIS MORNING. ICY PATCHES...HOWEVER...ARE
LIKELY THIS MORNING AS SOME ROAD SURFACES REMAIN AT TO BELOW
FREEZING...RESULTING IN PATCHY ICE ACCUMULATION. TRAVEL WILL
REMAIN HAZARDOUS... ESPECIALLY ON LESS TRAVELED ROADS.
* LONG TERM TRENDS...THE PRECIPITATION IS EXPECTED TO TRANSITION
BACK TO A WINTRY MIX MID TO LATE MORNING TODAY AND EVENTUALLY TO
ALL SNOW BY THIS AFTERNOON WITH THE INTENSITY INCREASING LATE.
* STORM TOTAL SNOW ACCUMULATIONS...EIGHT TO TWELVE INCHES OF SNOW
IS EXPECTED BY SATURDAY.
* WINDS AND VISIBILITY...EXPECT WINDS TO BECOME NORTHWEST AT 25 TO
35 MPH WITH HIGHER GUSTS TONIGHT THROUGH FRIDAY. THE WINDS
COMBINED WITH THE FALLING SNOW WILL RESULT IN NEAR WHITEOUT
CONDITIONS AT TIMES.
* IMPACTS...TRAVEL MAY BECOME NEARLY IMPOSSIBLE DUE TO BLOWING
AND DRIFTING SNOW TONIGHT INTO FRIDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND BLOWING
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.
$$

WINTER STORM WATCH
Issue Date: 507 AM CST WED DEC 23 2009
Expiration: 1200 AM CST SAT DEC 26 2009

...ICY CONDITIONS TONIGHT...FOLLOWED BY A MAJOR WINTER STORM
WEDNESDAY THROUGH FRIDAY...
.ICY CONDITIONS WILL AFFECT OUR REGION TONIGHT INTO WEDNESDAY.
THEN...AN APPROACHING LOW PRESSURE SYSTEM WILL BRING RAIN AND A
MIX OF WINTRY WEATHER STATEWIDE THROUGH FRIDAY. HEAVY
PRECIPITATION IS EXPECTED AT TIMES FROM WEDNESDAY ONWARD...
FOLLOWED BY STRONG WINDS ON THURSDAY AND FRIDAY.
IAZ037>039-047>050-057>060-070-071-231600-
/O.CAN.KDMX.ZR.Y.0001.000000T0000Z-091223T1800Z/
/O.NEW.KDMX.WW.Y.0026.091223T1107Z-091224T0600Z/
/O.EXT.KDMX.WS.A.0007.091224T1800Z-091226T0600Z/
HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-AUDUBON-
GUTHRIE-DALLAS-POLK-CASS-ADAIR-
INCLUDING THE CITIES OF...ELDORA...GRUNDY CENTER...WATERLOO...
BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER...
ADEL...DES MOINES...ATLANTIC...GREENFIELD
507 AM CST WED DEC 23 2009
...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...
...WINTER STORM WATCH NOW IN EFFECT FROM THURSDAY AFTERNOON
THROUGH FRIDAY EVENING...
...FREEZING RAIN ADVISORY IS CANCELLED...
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY FOR FREEZING RAIN...SLEET OR SNOW...WHICH IS IN
EFFECT UNTIL MIDNIGHT CST TONIGHT. THE FREEZING RAIN ADVISORY HAS
BEEN CANCELED. THE WINTER STORM WATCH IS NOW IN EFFECT FROM
THURSDAY AFTERNOON THROUGH FRIDAY EVENING.
...WINTER WEATHER ADVISORY...
* SHORT TERM TRENDS...AN AREA OF SHOWERS...AND EVEN A FEW
THUNDERSTORMS...OVER KANSAS AND MISSOURI WILL ADVANCE NORTHWARD
INTO SOUTHERN IOWA THIS MORNING. AS IT DOES THE PRECIPITATION
WILL SWITCH TO A MORE WINTER VARIETY BECOMING FREEZING RAIN AND
THEN EVENTUALLY SLEET OR SNOW BY THE TIME IT HITS CENTRAL IOWA
TOWARD MIDDAY. UP TO A TENTH OF AN INCH OF ICE...AND AN INCH OR
LESS OF SNOW MAY ACCUMULATE BY THROUGH THIS EVENING.
...WINTER STORM WATCH...
* LONG TERM TRENDS...THE PRECIPITATION SHOULD SWITCH TO MAINLY
RAIN LATE TONIGHT AND EARLY THURSDAY BEFORE TRANSITIONING BACK
TO A WINTRY MIX AND EVENTUALLY ALL SNOW LATE THURSDAY. ONCE IT
DOES THE SNOW MAY BE HEAVY AND WIND BLOWN...ESPECIALLY INTO
FRIDAY WHEN THE WINDS INCREASE.
* STORM TOTAL SNOW ACCUMULATIONS...BY THE TIME THE PRECIPITATION
DIMINISHES SATURDAY...THREE TO NINE INCHES OF SNOW IS EXPECTED
WITH THE HIGHEST AMOUNTS OF THAT RANGE FROM ATLANTIC TO IOWA
FALLS.
* WINDS...BRISK EAST WINDS OF 15 TO 25 MPH WILL BE COMMON
WEDNESDAY INTO THURSDAY. BY FRIDAY...WINDS WILL BECOME
NORTHWEST AT 25 TO 35 MPH WITH HIGHER GUSTS.
* VISIBILITY...DURING THE PERIODS OF HEAVIER SNOW LATE THURSDAY AND
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 ESPECIALLY WEST OF INTERSTATE 35.
* IMPACTS...TRAVEL WILL BECOME INCREASINGLY DIFFICULT IN THE WATCH
AREA ON ON CHRISTMAS EVE NIGHT AND CHRISTMAS DAY 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 WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY 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 THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.
$$