HYDROLOGIC OUTLOOK
Issue Date: 334 PM CST WED DEC 23 2009
Expiration: 600 AM CST THU DEC 24 2009

...RAIN AND MELTING SNOW COULD CAUSE RIVER RISES AND PONDING...
A POTENT WINTER STORM WILL BRING RELATIVELY WARM AIR NORTHWARD AND
POSSIBLY SOME RAIN TO PARTS OF NORTHEAST IOWA AND SOUTHWEST
WISCONSIN...ESPECIALLY ON THURSDAY AND THURSDAY NIGHT. OVER AN
INCH OF RAIN AND MIXED PRECIPITATION COULD FALL IN THIS AREA.
THIS PRECIPITATION...COMBINED WITH PARTIAL MELTING OF AN 8 TO 12
INCH AVERAGE SNOW PACK...COULD LEAD TO PONDING OF WATER...
WITHIN BANK RISES ON AREA CREEKS AND RIVERS...AND POSSIBLY SOME
LOCALIZED FLOODING.
THOSE WITH RIVER INTERESTS OR RESIDENTS THAT LIVE IN LOWER TERRAIN
SHOULD REMAIN ALERT FOR POSSIBLE WATER ISSUES OVER THE NEXT
SEVERAL DAYS.
$$
SHEA

HAZARDOUS WEATHER OUTLOOK
Issue Date: 304 PM CST WED DEC 23 2009
Expiration: 600 AM CST THU DEC 24 2009

...WINTER STORM IMPACTS THE AREA THROUGH CHRISTMAS DAY...
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF SOUTHWEST WISCONSIN
AND NORTHEAST IOWA.
.DAY ONE...TONIGHT
A WINTER STORM WARNING IS IN EFFECT TONIGHT. A MIXTURE OF SNOW...
FREEZING RAIN AND SLEET IS EXPECTED. FREEZING RAIN IS ONE OF THE
PRIMARY THREATS...WITH ICE ACCUMULATIONS UP TO A QUARTER OF AN INCH.
SNOW AMOUNTS SHOULD BE 1 TO 2 INCHES.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
THE WINTER STORM WARNING WILL CONTINUE THROUGH 6 PM FRIDAY. THE
PRECIPITATION WILL TRANSITION BACK AND FORTH BETWEEN SNOW AND
FREEZING RAIN THROUGH CHRISTMAS DAY. IT IS THIS TRANSITION THAT
CREATES QUITE A BIT OF UNCERTAINTY ON THE ADDITIONAL SNOW AND ICE
ACCUMULATIONS. AT THIS TIME...IT LOOKS LIKE ADDITIONAL SNOW TOTALS
MAY RANGE FROM LESS THAN AN INCH ACROSS SOUTHWEST WISCONSIN...TO
6 TO 12 INCHES WEST OF A LINE FROM CHARLES CITY TO CRESCO IOWA.
ADDITIONAL ICE ACCUMULATIONS WILL BE UP TO A TENTH OF AN INCH.
.SPOTTER INFORMATION STATEMENT...
REPORTS OF SNOW AND ICE ACCUMULATIONS WOULD BE GREATLY APPRECIATED
TONIGHT THROUGH CHRISTMAS DAY.
.EMERGENCY MANAGEMENT COORDINATION...
NO CALL IS SCHEDULED.
$$

WINTER STORM WARNING
Issue Date: 358 AM CST WED DEC 23 2009
Expiration: 600 PM CST FRI DEC 25 2009

...FREEZING RAIN AND DRIZZLE TO CONTINUE THROUGH THE MORNING...
...SIGNIFICANT WINTER STORM WILL IMPACT THE AREA THIS AFTERNOON
THROUGH CHRISTMAS...
.PATCHY AREAS OF FREEZING RAIN AND DRIZZLE WILL CONTINUE ACROSS
NORTHEAST IOWA AND SOUTHWEST WISCONSIN THIS MORNING WHICH WILL
CAUSE SOME ROADS TO BECOME ICY AND HAZARDOUS.
A DEVELOPING AREA OF LOW PRESSURE IN THE SOUTHERN PLAINS WILL
TRACK FROM ALONG THE GULF COAST THURSDAY MORNING AND LIFT INTO
CENTRAL IOWA EARLY ON FRIDAY. PRECIPITATION IS EXPECTED TO WAVER
BACK AND FORTH FROM SNOW TO FREEZING RAIN THROUGHOUT THE EVENT.
SNOWFALL AND ICE ACCUMULATIONS WILL VARY ACROSS THE
REGION...ALTHOUGH THERE WILL BE BETTER CHANCES FOR THE
PRECIPITATION TO REMAIN SNOW LONGER FURTHER TO THE WEST IN
MINNESOTA AND IOWA...WHILE WARMER AIR FURTHER EAST ACROSS
WISCONSIN WILL LEAD TO MORE MIXED PRECIPITATION. REGARDLESS...THIS
POTENT STORM SYSTEM IS EXPECTED TO CAUSE HAZARDOUS TRAVEL
CONDITIONS TODAY THROUGH CHRISTMAS AFTERNOON.
IAZ008>011-018-019-029-030-WIZ054-055-061-231800-
/O.UPG.KARX.WS.A.0005.091223T1800Z-091226T0000Z/
/O.NEW.KARX.WS.W.0007.091223T2100Z-091226T0000Z/
/O.EXT.KARX.ZR.Y.0002.000000T0000Z-091223T2100Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...PRAIRIE DU CHIEN...RICHLAND CENTER...PLATTEVILLE
358 AM CST WED DEC 23 2009
...FREEZING RAIN ADVISORY NOW IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...
...WINTER STORM WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 PM CST FRIDAY...
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND FREEZING RAIN...WHICH IS IN EFFECT
FROM 3 PM THIS AFTERNOON TO 6 PM CST FRIDAY. THE FREEZING RAIN
ADVISORY IS NOW IN EFFECT UNTIL 3 PM CST THIS AFTERNOON. THE
WINTER STORM WATCH IS NO LONGER IN EFFECT.
* FREEZING RAIN AND DRIZZLE WILL CONTINUE INTO THE EARLY AFTERNOON
HOURS TODAY. THE INITIAL SURGE OF SNOW AND FREEZING RAIN SHOULD
ADVANCE INTO MUCH OF NORTHEAST IOWA AND ADJACENT PARTS OF
SOUTHEAST MINNESOTA AND SOUTHWEST WISCONSIN LATER THIS
AFTERNOON.
* SNOW AND FREEZING RAIN WILL BE THE MAIN PRECIPITATION FORMS THIS
AFTERNOON THROUGH CHRISTMAS.
* LESS THAN ONE TENTH OF AN INCH OF ICE IS EXPECTED THIS MORNING
WITH THE FREEZING RAIN AND DRIZZLE. A TENTH OF AN INCH TO A
QUARTER OF AN INCH OF ICE IS EXPECTED TO OCCUR DUE TO THE
FREEZING RAIN. THE HIGHEST SNOWFALL AMOUNTS OF 12 TO 18 INCHES
ARE EXPECTED FROM POINTS WEST OF A LINE FROM CHARLES CITY IOWA
TO ARCADIA WISCONSIN. 6 TO 12 INCHES ARE EXPECTED EAST FROM THIS.
* ICE ACCUMULATIONS OF ONE TENTH OF AN INCH OR LESS ARE EXPECTED
THIS MORNING RESULTING IN HAZARDOUS TRAVEL CONDITIONS.
ADDITIONAL SNOW AND ICE ACCUMULATIONS ARE EXPECTED TO CAUSE
HAZARDOUS TRAVEL THIS AFTERNOON THROUGH FRIDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.
$$

WINTER STORM WATCH
Issue Date: 334 PM CST MON DEC 21 2009
Expiration: 600 PM CST FRI DEC 25 2009

...A BAND OF SNOW WILL SPREAD ACROSS THE AREA TONIGHT...A
SIGNIFICANT WINTER STORM WILL SPREAD ACROSS THE AREA FROM
WEDNESDAY AFTERNOON THROUGH THE CHRISTMAS HOLIDAY...
.AN UPPER LEVEL DISTURBANCE MOVING EAST ACROSS NEBRASKA AND SOUTH
DAKOTA...COMBINED WITH MOISTURE BEING PUSHED NORTH OVER A WARM
FRONT ACROSS NEBRASKA AND IOWA...WILL PRODUCE A BAND OF SNOWFALL
ACROSS THE AREA TONIGHT INTO TUESDAY MORNING. SNOW AMOUNTS OF
2 TO 4 INCHES...LOCALLY UP TO 5 INCHES...ARE EXPECTED ALONG AND
SOUTH OF A LINE FROM DODGE CENTER...ROCHESTER AND CALEDONIA
MINNESOTA TO RICHLAND CENTER WISCONSIN.
A MUCH STRONGER AND MORE MOIST SYSTEM WILL MOVE INTO THE SOUTHERN
PLAINS TUESDAY AND WEDNESDAY...THEN LIFT INTO SOUTHERN IOWA BY
FRIDAY MORNING. THIS SYSTEM IS EXPECTED TO BRING A WINTRY MIX OF
PRECIPITATION TO THE AREA STARTING WEDNESDAY AND CONTINUING INTO
FRIDAY. PRECIPITATION TYPES REMAIN UNCERTAIN AT THIS TIME...AS IT
REMAIN UNCLEAR HOW MUCH WARM AIR AND HOW FAR NORTH THE WARM AIR
WILL GET WRAPPED INTO THE SYSTEM. SNOW...SLEET...FREEZING RAIN AND
RAIN...AND VARIOUS MIXES OF IT...ARE ALL POSSIBLE AS THIS LOW LIFTS
TOWARD THE REGION. THIS WINTRY MIX OF PRECIPITATION IS EXPECTED TO
CAUSE HAZARDOUS TRAVEL AND TRAVEL DELAYS FROM LATER WEDNESDAY
THROUGH CHRISTMAS DAY.
IAZ008>011-018-019-029-030-MNZ086-087-094>096-WIZ053>055-061-
220545-
/O.NEW.KARX.WS.A.0005.091223T1800Z-091226T0000Z/
/O.CON.KARX.WW.Y.0014.091222T0000Z-091222T1500Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-DODGE-OLMSTED-MOWER-FILLMORE-HOUSTON-VERNON-CRAWFORD-
RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...ROCHESTER...AUSTIN...VIROQUA...PRAIRIE DU CHIEN...
RICHLAND CENTER...PLATTEVILLE
334 PM CST MON DEC 21 2009
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
TUESDAY...
...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
FRIDAY AFTERNOON...
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
FRIDAY AFTERNOON. A WINTER WEATHER ADVISORY REMAINS IN EFFECT
UNTIL 9 AM CST TUESDAY.
* SNOW WILL FALL ACROSS THE AREA TONIGHT INTO TUESDAY MORNING...
WITH THE HEAVIEST SNOW FROM AROUND 9 PM TO 3 AM. A WINTRY MIX OF
PRECIPITATION...SOME OF IT HEAVY...IS EXPECTED TO SPREAD ACROSS
THE AREA FROM WEDNESDAY AFTERNOON THROUGH FRIDAY.
* SNOW AMOUNTS OF 2 TO 4 INCHES ARE EXPECTED TONIGHT INTO TUESDAY
MORNING...WITH LOCAL AMOUNTS UP TO 5 INCHES NEAR THE MINNESOTA-
IOWA BORDER. PRECIPITATION TYPES AND AMOUNTS REMAIN UNCERTAIN
FOR LATER IN THE WEEK...HOWEVER SEVERAL INCHES OF SNOW ALONG
WITH SOME SLEET...FREEZING RAIN OR RAIN ARE LIKELY.
* VISIBILITIES WILL BE REDUCED TO LESS THAN A MILE IN SOME OF
THE FALLING SNOW TONIGHT.
* TRAVEL WILL BECOME HAZARDOUS TONIGHT AS THE SNOW ACCUMULATES ON
UNTREATED OR UNPLOWED ROADS. MORE HAZARDOUS TRAVEL...WITH
UNTREATED ROADS EXPECTED TO BE SNOW OR ICE COVERED...IS EXPECTED
FROM LATER WEDNESDAY THROUGH FRIDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...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.
$$