HAZARDOUS WEATHER OUTLOOK
Issue Date: 524 AM CST FRI DEC 25 2009
Expiration: 515 AM CST SAT DEC 26 2009

Expires:200912261115;;
FLUS43 KDMX 251107
HWODMX
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
507 AM CST FRI DEC 25 2009
IAZ004>007-015>017-023>027-033>038-044>049-057>061-070>073-081>083-
092>094-261115-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-SAC-CALHOUN-WEBSTER-
HAMILTON-HARDIN-GRUNDY-CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-
AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-CASS-ADAIR-MADISON-WARREN-ADAMS-
UNION-CLARKE-TAYLOR-RINGGOLD-DECATUR-
507 AM CST FRI DEC 25 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.
.DAY ONE...TODAY AND TONIGHT
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. SNOWFALL WILL CONTINUE TO AFFECT THE AREA TODAY
AND TONIGHT...WITH ADDITIONAL ACCUMULATIONS POSSIBLE THROUGH THE
AFTERNOON HOURS. STRONG NORTHWEST WINDS WILL CAUSE BLOWING AND
DRIFTING OF SNOW AND REDUCE VISIBILITY CONSIDERABLY AT TIMES.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
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. MODERATE SNOWFALL IS EXPECTED THROUGH THE EARLY
MORNING HOURS SATURDAY...WITH ADDITIONAL LIGHT ACCUMULATING SNOW
POSSIBLE THROUGH SATURDAY EVENING.
.SPOTTER INFORMATION STATEMENT...
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.
IAZ059>061-070>073-081>083-092>094-241815-
/O.UPG.KDMX.WS.A.0007.091224T1800Z-091226T0600Z/
/O.EXB.KDMX.WS.W.0008.091224T1800Z-091226T1200Z/
DALLAS-POLK-JASPER-CASS-ADAIR-MADISON-WARREN-ADAMS-UNION-CLARKE-
TAYLOR-RINGGOLD-DECATUR-
INCLUDING THE CITIES OF...ADEL...DES MOINES...NEWTON...ATLANTIC...
GREENFIELD...WINTERSET...INDIANOLA...CORNING...CRESTON...
OSCEOLA...BEDFORD...MOUNT AYR...LEON
411 AM CST THU DEC 24 2009
...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO 6 AM CST
SATURDAY...
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM NOON
TODAY TO 6 AM CST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT.
* SHORT TERM TRENDS...TEMPERATURES HAVE RISEN TO ABOVE FREEZING AT
MOST LOCATIONS THEREFORE ANY PRECIPITATION THAT FALLS WILL BE
MAINLY IN THE FORM OF RAIN EARLY THIS MORNING. ISOLATED POCKETS
OF FREEZING RAIN MAY OCCUR.
* LONG TERM TRENDS...THE PRECIPITATION IS EXPECTED TO TRANSITION
BACK TO A WINTRY MIX AND EVENTUALLY TO ALL SNOW BY THIS
AFTERNOON WITH THE INTENSITY INCREASING LATE.
* STORM TOTAL SNOW ACCUMULATIONS...SIX TO TEN 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.
$$

FLOOD WATCH
Issue Date: 358 PM CST WED DEC 23 2009
Expiration: 600 AM CST FRI DEC 25 2009

...FLOODING RESULTING FROM SIGNIFICANT RAINFALL...ALONG WITH
SNOW MELT AND ICE JAMS...POSSIBLE THURSDAY INTO THURSDAY NIGHT...
.A STRONG STORM SYSTEM WILL BRING THE POSSIBILITY OF FLOODING.
PRECIPITATION TYPE WILL BE A MAJOR DRIVING FORCE IN THE FLOODING
THREAT. MODERATE TO HEAVY RAIN...ALONG WITH POSSIBLE
THUNDERSTORMS...ARE POSSIBLE. RAINFALL AMOUNTS OF A HALF INCH TO
TWO INCHES ARE EXPECTED THROUGH THURSDAY NIGHT.
IAZ039-049-050-060>062-073>075-083>086-094>097-240600-
/O.NEW.KDMX.FA.A.0002.091224T1200Z-091225T1200Z/
/00000.0.IC.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BLACK HAWK-MARSHALL-TAMA-POLK-JASPER-POWESHIEK-WARREN-MARION-
MAHASKA-CLARKE-LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-APPANOOSE-DAVIS-
INCLUDING THE CITIES OF...WATERLOO...MARSHALLTOWN...TOLEDO...
DES MOINES...NEWTON...GRINNELL...INDIANOLA...KNOXVILLE...
OSKALOOSA...OSCEOLA...CHARITON...ALBIA...OTTUMWA...LEON...
CORYDON...CENTERVILLE...BLOOMFIELD
358 PM CST WED DEC 23 2009
...FLOOD WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
* FLOOD WATCH FOR PORTIONS OF CENTRAL IOWA...NORTHEAST IOWA...
SOUTH CENTRAL IOWA AND SOUTHEAST IOWA...INCLUDING THE FOLLOWING
AREAS...IN CENTRAL IOWA...JASPER...MARSHALL...POLK... POWESHIEK
AND TAMA. IN NORTHEAST IOWA...BLACK HAWK. IN SOUTH CENTRAL
IOWA...APPANOOSE...CLARKE...DECATUR...LUCAS...
MAHASKA...MARION...MONROE...WARREN AND WAYNE. IN SOUTHEAST
IOWA...DAVIS AND WAPELLO.
* FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT
* MODERATE TO HEAVY RAINFALL...AND SOME THUNDERSTORMS...ARE
EXPECTED. THIS RAINFALL...COMBINED WITH SNOW MELT...MAY LEAD TO
FLOODING ON AREA RIVERS. LOCALIZED FLOODING MAY ALSO OCCUR IN
OTHER AREAS...SUCH AS URBAN AREAS...WHERE THE DRAINAGE SYSTEMS
MAY BE IMPAIRED DUE TO SNOW AND ICE CLOGGED INTAKES.
* ANOTHER CONCERN IS BREAK UP ICE JAMS ON AREA RIVERS. THE RUNOFF
WILL LIKELY BE ENOUGH TO BREAK UP THE ICE ESPECIALLY AS ONE
MOVES SOUTHWARD. SINCE THE RIVER ICE IS RELATIVELY
THIN...THOUGH...ONLY MINOR...LOCALIZED PROBLEMS DUE TO ICE JAMS
ARE EXPECTED.
* RIVERS MOST LIKELY TO BE AFFECTED INCLUDE THE CHARITON...DES
MOINES RIVER FROM DES MOINES DOWNSTREAM...AS WELL AS THE SOUTH
SKUNK...CEDAR CREEK...AND THE THOMPSON RIVERS. OTHER SMALLER
STREAMS AND CREEKS MAY ALSO BE AFFECTED.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.
YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.
$$
ZOGG

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.
IAZ061-073-081>083-231600-
/O.CAN.KDMX.ZR.Y.0001.000000T0000Z-091223T1800Z/
/O.NEW.KDMX.WW.Y.0026.091223T1107Z-091223T2100Z/
/O.EXB.KDMX.WS.A.0007.091224T1800Z-091226T0600Z/
JASPER-WARREN-ADAMS-UNION-CLARKE-
INCLUDING THE CITIES OF...NEWTON...INDIANOLA...CORNING...
CRESTON...OSCEOLA
507 AM CST WED DEC 23 2009
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...
...WINTER STORM WATCH 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 AND FREEZING RAIN AND SLEET...WHICH
IS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON. A WINTER STORM WATCH
HAS ALSO BEEN ISSUED. THIS WINTER STORM WATCH IS IN EFFECT FROM
THURSDAY AFTERNOON THROUGH FRIDAY EVENING. THE FREEZING RAIN
ADVISORY HAS BEEN CANCELED.
...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 SIX INCHES OF SNOW IS EXPECTED.
* 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
POSSIBLE.
* 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.
$$