HAZARDOUS WEATHER OUTLOOK
Issue Date: 501 PM CST THU DEC 24 2009
Expiration: 445 PM CST FRI DEC 25 2009

Expires:200912252245;;
FLUS43 KDMX 242244
HWODMX
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
444 PM CST THU DEC 24 2009
IAZ004>007-015>017-023>028-033>039-044>050-057>061-070>073-081>083-
092>094-252245-
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-CASS-
ADAIR-MADISON-WARREN-ADAMS-UNION-CLARKE-TAYLOR-RINGGOLD-DECATUR-
444 PM CST THU DEC 24 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.
.DAY ONE...TONIGHT
A WINTER STORM WARNING IS IN EFFECT FOR THE AREA. CONDITIONS WILL
DETERIORATE THROUGH THE EVENING AS SLEET AND SNOW SPREAD EASTWARD.
MODERATE AMOUNTS OF SNOW ACCUMULATION ARE EXPECTED WITH THIS
STORM OVERNIGHT...ALONG WITH VERY STRONG NORTHWEST WINDS THAT WILL
LIKELY CAUSE BLOWING AND DRIFTING OF SNOW. VISIBILITY IS
ANTICIPATED TO BECOME REDUCED CONSIDERABLY...LEADING TO NEAR
BLIZZARD CONDITIONS AT TIMES OVER THE WESTERN PORTIONS OF THE
WARNING AREA.
PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT
WEATHER.GOV/DESMOINES FOR FURTHER DETAILS.
.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
A WINTER STORM WARNING IS IN EFFECT FOR THE AREA. PLEASE REFER TO
THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR
FURTHER DETAILS.
SIGNIFICANT AMOUNTS OF SNOW ACCUMULATION ARE EXPECTED WITH THIS
STORM...ALONG WITH VERY STRONG NORTHWEST WINDS THAT WILL LIKELY
CAUSE BLOWING AND DRIFTING OF SNOW. VISIBILITY IS ANTICIPATED TO
BECOME REDUCED CONSIDERABLY...LEADING TO NEAR BLIZZARD CONDITIONS
AT TIMES.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED...BUY 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.
IAZ004>007-015>017-023>028-033>036-044>046-057-058-241815-
/O.EXT.KDMX.WS.W.0008.000000T0000Z-091226T1200Z/
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE-
INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY...
NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS...
HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY...
ROCKWELL CITY...FORT DODGE...WEBSTER CITY...DENISON...CARROLL...
JEFFERSON...AUDUBON...GUTHRIE CENTER
411 AM CST THU DEC 24 2009
...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 AM CST SATURDAY...
THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 6 AM CST
SATURDAY.
* SHORT TERM TRENDS...A LIGHT WINTRY MIX OF PRECIPITATION CAN BE
EXPECTED THROUGH MID MORNING. LIGHT SNOW IS ANTICIPATED IN THE
ESTHERVILLE AREAS WHERE TEMPERATURES WILL REMAIN BELOW FREEZING.
LIGHT RAIN AND FREEZING RAIN ARE LIKELY ELSEWHERE WITH MINOR ICE
ACCUMULATIONS POSSIBLE.
* LONG TERM TRENDS...THE MIXTURE OF PRECIPITATION IS EXPECTED TO
TRANSITION BACK TO ALL SNOW BY LATE THIS MORNING INTO THE
AFTERNOON FROM WEST TO EAST. NEW SNOWFALL ACCUMULATIONS TODAY OF
1 TO 3 INCHES ARE FORECAST.
* STORM TOTAL SNOW ACCUMULATIONS...TWELVE TO EIGHTEEN INCHES OF
SNOW IS EXPECTED BY SATURDAY. LOCALIZED TWENTY INCH AMOUNTS MAY
OCCUR.
* 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.
$$

WINTER STORM WATCH
Issue Date: 344 PM CST MON DEC 21 2009
Expiration: 600 PM CST FRI DEC 25 2009

...MAJOR WINTER STORMS SET TO IMPACT PORTIONS OF IOWA WEDNESDAY
THROUGH FRIDAY...
.LOW PRESSURE WILL MOVE THROUGH IOWA TONIGHT BRINGING SNOW ACROSS
THE NORTHERN HALF OF THE STATE. A MUCH MORE INTENSE SYSTEM IS
FORECAST TO LIFT INTO THE MIDWEST ON WEDNESDAY AND MEANDER SLOWLY
NORTH INTO THURSDAY AND FRIDAY BRINGING SEVERE WINTER WEATHER
CONDITIONS TO PORTIONS OF CENTRAL IOWA.
IAZ004>007-015>017-026>028-220500-
/O.NEW.KDMX.WW.Y.0025.091222T0000Z-091222T1200Z/
/O.NEW.KDMX.WS.A.0007.091223T1200Z-091226T0000Z/
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
FRANKLIN-BUTLER-BREMER-
INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY...
NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...HAMPTON...
ALLISON...WAVERLY
344 PM CST MON DEC 21 2009
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST TUESDAY...
...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
FRIDAY AFTERNOON...
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 6 AM CST
TUESDAY. A WINTER STORM WATCH HAS ALSO BEEN ISSUED. THIS WINTER
STORM WATCH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY
AFTERNOON.
WINTER WEATHER ADVISORY...
* SHORT TERM TRENDS...EXPECT PERIODS OF LIGHT SNOW TO INTENSIFY
THIS EVENING. SNOWFALL RATES OF ONE HALF INCH PER HOUR CAN BE
EXPECTED BY MID EVENING AS SNOW EXPANDS ACROSS NORTHERN IOWA.
* TIMING...6 PM THIS EVENING TO 6 AM ON TUESDAY MORNING. HEAVIEST
SNOWS ARE EXPECTED BETWEEN 9 PM AND 4 AM.
* STORM TOTAL ACCUMULATIONS...2 TO 5 INCHES WITH HEAVIEST AMOUNTS
ALONG THE MINNESOTA BORDER.
* VISIBILITIES...GENERALLY UNDER 2 MILES WITH THE HEAVIEST SNOW
PRODUCING ONE HALF MILE TO OCCASIONAL ONE QUARTER MILE
VISIBILITIES.
WINTER STORM WATCH...
* TIMING...WEDNESDAY MORNING THROUGH LATE FRIDAY AFTERNOON.
* STORM TOTAL ICE ACCUMULATIONS...UP TO ONE QUARTER INCH FROM THE
HIGHWAY 30 TO HIGHWAY 20 CORRIDORS WITH LESSER AMOUNTS FARTHER
NORTH.
* STORM TOTAL SNOW ACCUMULATIONS...4 TO 6 INCHES ALONG THE
SOUTHERN EDGE OF THE WATCH AREA UP TO OVER A FOOT ALONG AND WEST
OF A CARROLL TO MASON CITY LINE.
* WINDS...EASTERLY WINDS AT 10 TO 20 MPH ON WEDNESDAY INTO
THURSDAY BECOMING NORTHERLY AT 20 TO 30 MPH WITH HIGHER GUSTS ON
FRIDAY.
* VISIBILITY...SNOW AREAS WILL SEE VISIBILITIES GENERALLY LESS
THAN ONE MILE FOR THE DURATION OF THE STORM WITH FREQUENT
VISIBILITIES OF ONE HALF TO ONE QUARTER OF A MILE IN THE HEAVIER
SNOWS. WITH INCREASING WINDS THURSDAY NIGHT AND FRIDAY...BLOWING
SNOW AND REDUCED VISIBILITIES ARE EXPECTED IN THE WATCH AREA.
* IMPACTS...TRAVEL WILL BECOME INCREASINGLY DIFFICULT IN THE WATCH
AREA ON WEDNESDAY 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 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 THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.
$$