HAZARDOUS WEATHER OUTLOOK
Issue Date: 525 PM CST TUE DEC 22 2009
Expiration: 730 AM CST WED DEC 23 2009

Expires:200912231330;;
FLUS43 KOAX 222325
HWOOAX
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
525 PM CST TUE DEC 22 2009
IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-231330-
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT-
PAGE-KNOX-CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON-
STANTON-CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER-
SAUNDERS-DOUGLAS-SARPY-SEWARD-LANCASTER-CASS-OTOE-SALINE-
JEFFERSON-GAGE-JOHNSON-NEMAHA-PAWNEE-RICHARDSON-
525 PM CST TUE DEC 22 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
IOWA...WEST CENTRAL IOWA...EAST CENTRAL NEBRASKA...NORTHEAST
NEBRASKA AND SOUTHEAST NEBRASKA.
.DAY ONE...TONIGHT AND WEDNESDAY
AREAS OF FOG AND LIGHT FREEZING DRIZZLE WILL BE POSSIBLE THIS
EVENING ACROSS MUCH OF THE AREA. A WEATHER DISTURBANCE INTO THE
AREA COULD GENERATE MEASURABLE LIGHT FREEZING RAIN OVERNIGHT ALONG
AND SOUTH OF INTERSTATE 80...WITH SOME SLEET POSSIBLY MIXING IN
ALONG AND NORTH OF INTERSTATE 80. ACROSS NORTHEAST NEBRASKA...THE
LIGHT FREEZING DRIZZLE COULD BECOME SNOW BY DAYBREAK AND CONTINUE
FOR MUCH OF WEDNESDAY. THUS...A FREEZING RAIN ADVISORY IS IN
EFFECT TONIGHT AND WEDNESDAY MORNING FOR SOUTHEAST NEBRASKA...AND
A WINTER WEATHER ADVISORY IS IN EFFECT ELSEWHERE. UP TO ONE
QUARTER INCH ICE ACCUMULATION COULD OCCUR ALONG AND SOUTH OF
INTERSTATE 80 THROUGH NOON WEDNESDAY.
BY WEDNESDAY AFTERNOON...MODERATE TO HEAVY SNOW WILL DEVELOP
ACROSS CENTRAL THROUGH NORTHEAST NEBRASKA...WITH A WINTRY MIXTURE
IN THE INTERSTATE 80 CORRIDOR. ACROSS FAR SOUTHEAST NEBRASKA...IT
MAY BECOME WARM ENOUGH AGAIN FOR ALL RAIN. THUS...A WINTER STORM
WARNING HAS BEEN ISSUED FOR PORTIONS OF NORTHEAST NEBRASKA FOR
WEDNESDAY AFTERNOON AND BEYOND...WITH A WINTER WEATHER ADVISORY
CONTINUING FOR PORTIONS EAST CENTRAL NEBRASKA AND WESTERN IOWA.
.DAYS TWO THROUGH SEVEN...WEDNESDAY NIGHT THROUGH TUESDAY
A POTENT WINTER STORM WILL CONTINUE TO MOVE THROUGH THE
REGION...AS ANOTHER REINFORCING SHOT OF ENERGY MOVES IN FROM THE
WEST. MODERATE TO HEAVY SNOW WILL CONTINUE ACROSS NORTHEAST
NEBRASKA WHERE A WINTER STORM WARNING WILL REMAIN IN EFFECT
THROUGH CHRISTMAS DAY. THE WINTRY MIXTURE OF FREEZING RAIN AND
SLEET WILL CHANGE TO ALL SNOW ALONG AND SOUTH AND INTERSTATE
80...MOSTLY BY DAYBREAK CHRISTMAS EVE. A WINTER STORM WATCH
REMAINS IN EFFECT LATE WEDNESDAY NIGHT THROUGH CHRISTMAS...AND MAY
EVENTUALLY NEED TO BE UPGRADED TO A WINTER STORM WARNING.
IN ADDITION TO ICE AND SLEET ACCUMULATIONS AND HEAVY SNOW...WINDS
WILL BE SUBSTANTIALLY INCREASING TO 25 TO 35 MPH THURSDAY AND
FRIDAY. THIS WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW AND
COULD CREATE NEAR BLIZZARD CONDITIONS DURING THIS TIME TOO.
A FOOT OR MORE OF SNOW IS FORECAST FOR PORTIONS OF CENTRAL
NEBRASKA AND NORTHEAST NEBRASKA...WITH 6 TO 10 INCHES FORECAST FOR
SOUTHEAST NEBRASKA AND SOUTHWEST IOWA. THESE AMOUNTS ARE FORECAST
FOR THE ENTIRE STORM...WEDNESDAY THROUGH FRIDAY.
CONTINUE TO MONITOR LATER FORECASTS ON THIS DEVELOPING WEATHER
SITUATION...ESPECIALLY IF TRAVELING. THIS IS A MAJOR WINTER STORM
THAT WILL HAVE A LASTING AND SIGNIFICANT IMPACT ON A LARGE PORTION
FOR THE CENTRAL PLAINS.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT AND WEDNESDAY...BUT
SPOTTERS ARE ENCOURAGED TO SUBMIT SNOWFALL TOTALS OR ICING REPORTS.
$$

WINTER WEATHER ADVISORY
Issue Date: 347 PM CST TUE DEC 22 2009
Expiration: 1200 AM CST THU DEC 24 2009

...HOLIDAY TRAVEL TO BE AFFECTED BY A MAJOR WINTER STORM THIS
WEEK...
.A LARGE STORM SYSTEM OVER THE WEST COAST...WILL MOVE INTO THE
ROCKIES AND THEN PLAINS STATES THROUGH WEDNESDAY. THIS SYSTEM WILL
PHASE WITH ANOTHER STORM SYSTEM WEDNESDAY...RESULTING IN A VERY
COMPLEX WEATHER SITUATION THIS WEEK. A VARIETY OF WEATHER IS
EXPECTED WITH HEAVY SNOW...SLEET...FREEZING RAIN AND RAIN...THEN
AS THE SYSTEM PULLS ENOUGH COLD AIR IN...THE PRECIPITATION WILL
CHANGE OVER TO ALL SNOW AND BLOWING SNOW. SIGNIFICANT AMOUNTS OF
SNOW AND ICE ARE POSSIBLE WITH THIS SYSTEM WITH A HIGH IMPACT TO
TRAVEL.
IAZ043-055-056-069-NEZ034-045-051>053-065>068-230600-
/O.NEW.KOAX.WW.Y.0019.091223T0300Z-091224T0600Z/
/O.EXT.KOAX.WS.A.0006.091224T0600Z-091226T0000Z/
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-BURT-WASHINGTON-SAUNDERS-
DOUGLAS-SARPY-SEWARD-LANCASTER-CASS-OTOE-
INCLUDING THE CITIES OF...ONAWA...MISSOURI VALLEY...HARLAN...
COUNCIL BLUFFS...TEKAMAH...BLAIR...WAHOO...OMAHA...BELLEVUE...
SEWARD...LINCOLN...PLATTSMOUTH...NEBRASKA CITY
347 PM CST TUE DEC 22 2009
...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO
MIDNIGHT CST WEDNESDAY NIGHT...
...WINTER STORM WATCH NOW IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH FRIDAY AFTERNOON...
THE NATIONAL WEATHER SERVICE IN OMAHA/VALLEY HAS ISSUED A WINTER
WEATHER ADVISORY FOR FREEZING DRIZZLE...FREEZING RAIN...AND SLEET
AND SNOW...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO MIDNIGHT CST
WEDNESDAY NIGHT. THE WINTER STORM WATCH IS NOW IN EFFECT FROM LATE
WEDNESDAY NIGHT THROUGH FRIDAY AFTERNOON.
* TIMING...THE STORM SYSTEM WILL PRODUCE SEVERAL WAVES OF
PRECIPITATION. A WINTRY MIX OF FREEZING
DRIZZLE...SLEET...SNOW...AND RAIN WILL BE POSSIBLE THROUGH
MIDNIGHT WEDNESDAY NIGHT. INITIALLY THE PRECIPITATION WILL BE LIGHT
TONIGHT...WITH FREEZING DRIZZLE...THEN INCREASE IN INTENSITY
WITH FREEZING RAIN WEDNESDAY MORNING. SOME AREAS WILL EXPERIENCE
ENOUGH WARMING OF SURFACE TEMPERATURES...ESPECIALLY FOR AREAS
ALONG AND SOUTH OF OMAHA TO CHANGE OVER TO RAIN. WEDNESDAY NIGHT
THE WINTRY MIX WILL CONTINUE CHANGING OVER TO ALL SNOW LATE
WEDNESDAY NIGHT AND THURSDAY.
* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS OF 6 INCHES OR MORE ARE
POSSIBLE FROM THIS STORM.
* ICE ACCUMULATIONS...ICE ACCUMULATIONS ARE POSSIBLE WEDNESDAY
MORNING BEFORE THE FREEZING RAIN BECOMES ALL RAIN. THE MOST
SIGNIFICANT ICE ACCUMULATIONS LOOK TO BE SOUTH OF SEWARD TO
TEKAMAH TO HARLAN IOWA WHERE MORE THAN A TENTH TO A QUARTER OF
AN INCH OR MORE OF ICE IS POSSIBLE.
* WINDS...THE WIND WILL BE INCREASING THURSDAY INTO THURSDAY
NIGHT AND CONTINUING THROUGH FRIDAY. SOME BLOWING AND DRIFTING
SNOW IS POSSIBLE DURING THAT TIME.
* IMPACTS...SIGNIFICANT IMPACTS TO TRAVEL ARE EXPECTED WITH THIS
STORM SYSTEM. DUE TO THE COMBINATION OF THE STRONG WINDS AND
SOME ICE ACCUMULATIONS...POWER OUTAGES WILL ALSO BE POSSIBLE
FROM THE STORM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WATCH MEANS THAT THERE IS POTENTIAL FOR
SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT
TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS FOR UPDATES.
A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.
$$
ZAPOTOCNY/DEWALD

WINTER STORM WATCH
Issue Date: 347 AM CST TUE DEC 22 2009
Expiration: 600 PM CST FRI DEC 25 2009

...WINTER STORM POTENTIAL CONTINUES FOR MID TO LATE WEEK ACROSS
EASTERN NEBRASKA AND SOUTHWEST IOWA...
.A VERY COMPLEX STORM SYSTEM CONTINUES TO POSSIBLY START AFFECTING
THE REGION ON WEDNESDAY...AND CONTINUING THROUGH CHRISTMAS DAY.
SEVERAL WAVES OF PRECIPITATION LOOK LIKELY DURING THAT PERIOD
WHICH COULD ADD UP TO SIGNIFICANT SNOW AND FREEZING RAIN FOR PARTS
OF THE AREA. THERE REMAINS AN ABOVE AVERAGE UNCERTAINTY AS TO THE
TRACK AND STRENGTH OF THIS SYSTEM. ANY DEVIATIONS IN TRACK OF THE
LOW PRESSURE WILL HAVE A SIGNIFICANT IMPACT ON WHERE THE HEAVIEST
SNOW AND ICE FALL. PERSONS ARE URGED TO CONTINUE TO MONITOR THE
VERY LATEST ON THIS DEVELOPING WINTER STORM AS IT HAS THE
POTENTIAL TO PRODUCE SIGNIFICANT IMPACTS TO TRAVEL.
IAZ043-055-056-069-079-090-NEZ034-045-052-053-067-068-089>093-
221800-
/O.EXT.KOAX.WS.A.0006.091224T1200Z-091226T0000Z/
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-FREMONT-BURT-
WASHINGTON-DOUGLAS-SARPY-CASS-OTOE-GAGE-JOHNSON-NEMAHA-PAWNEE-
RICHARDSON-
INCLUDING THE CITIES OF...ONAWA...MISSOURI VALLEY...HARLAN...
COUNCIL BLUFFS...GLENWOOD...SIDNEY...TEKAMAH...BLAIR...OMAHA...
BELLEVUE...PLATTSMOUTH...NEBRASKA CITY...BEATRICE...TECUMSEH...
AUBURN...PAWNEE CITY...FALLS CITY
347 AM CST TUE DEC 22 2009
...WINTER STORM WATCH NOW IN EFFECT FROM THURSDAY MORNING THROUGH
FRIDAY AFTERNOON...
THE WINTER STORM WATCH IS NOW IN EFFECT FROM THURSDAY MORNING
THROUGH FRIDAY AFTERNOON.
* TIMING: THE STORM SYSTEM IS LIKELY TO PRODUCE SEVERAL WAVES OF
PRECIPITATION. THE FIRST WILL MOVE INTO THE AREA ON WEDNESDAY
MORNING AND WILL LIKELY BE IN THE FORM OF FREEZING RAIN. THIS
WILL LIKELY CHANGE TO ALL RAIN BY AFTERNOON AS SURFACE
TEMPERATURES WARM. ANOTHER ROUND OF PRECIPITATION IS EXPECTED ON
WEDNESDAY EVENING AND NIGHT...BUT MUCH OF THIS WILL BE IN THE
FORM OF RAIN...ALTHOUGH SOME PATCHY FREEZING RAIN WILL BE
POSSIBLE. THE LAST ROUND IS EXPECTED ON THURSDAY WHICH WILL
LIKELY BE RAIN CHANGING TO SNOW...WITH SNOW CONTINUING THROUGH
FRIDAY.
* SNOW ACCUMULATIONS: SNOW ACCUMULATIONS NEAR 6 INCHES ARE
POSSIBLE FROM THIS STORM.
* ICE ACCUMULATIONS: MINOR ICE ACCUMULATIONS ARE POSSIBLE
WEDNESDAY MORNING BEFORE THE FREEZING RAIN BECOMES ALL RAIN. THE
MOST SIGNIFICANT ICE ACCUMULATIONS LOOK TO BE FROM TEKAMAH TO
ONAWA TO HARLAN WHERE MORE THAN A TENTH OF AN INCH OF ICE IS
POSSIBLE.
* WINDS: THE WIND WILL BE INCREASING THURSDAY INTO THURSDAY NIGHT
AND CONTINUING THROUGH FRIDAY. SOME BLOWING AND DRIFTING SNOW IS
POSSIBLE DURING THAT TIME.
* IMPACTS: SIGNIFICANT IMPACTS TO TRAVEL ARE POSSIBLE FROM THIS
STORM SYSTEM...ESPECIALLY ON THURSDAY THROUGH FRIDAY AS
PRECIPITATION SLOWLY CHANGES OVER TO SNOW.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WATCH MEANS THAT THERE IS POTENTIAL FOR
SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT
TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS FOR UPDATES.
$$