Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS63 KOAX 222047 AFDOAX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 247 PM CST MON DEC 22 2014 .SHORT TERM...(TONIGHT THROUGH THURSDAY) ISSUED AT 154 PM CST MON DEC 22 2014 PRECIP TYPE AND SNOW AMOUNTS WILL BE THE PRIMARY FORECAST CONCERN INITIALLY IN THE SHORT TERM. RAIN WAS CONCENTRATED ACROSS EASTERN PARTS OF THE FORECAST AREA EARLY THIS AFTERNOON IN ADVANCE OF UPPER LOBE ACROSS EASTERN NEBRASKA AT 19Z. EXPECT TEMPERATURES TO REMAIN WARM ENOUGH FOR PRECIP TO REMAIN LIQUID THROUGH THE AFTERNOON BEFORE CHANGING OR MIXING WITH SNOW THIS EVENING ACROSS THE NORTH. FORECAST SOUNDINGS SUGGEST TIMING OF THE TRANSITION SOMETIME AFTER 03Z. SHORT RANGE MODELS INDICATE UPPER LOW WILL BE LOCATED ACROSS SOUTHEAST NEBRASKA INTO SOUTHWEST IOWA FOR MUCH OF THE NIGHT WITH PRECIP PIVOTING FROM WESTERN IOWA INTO NORTHEAST NEBRASKA WHILE SOUTHERN PARTS OF THE AREA SEE LIMITED PRECIP DURING THIS TIME. SOME ONE INCH SNOW AMOUNTS POSSIBLE IN THE NORTH BY TUESDAY MORNING BUT LACK OF COLD AIR ON THE BACK SIDE OF THE SYSTEM IS EXPECTED TO LIMIT SNOW AMOUNTS AS TEMPERATURES HANG NEAR 30 DEGREES. SNOW IS EXPECTED TO BECOME MORE WIDESPREAD ON TUESDAY AS JET ENERGY DIGS TROUGH INTO CENTRAL TEXAS WITH SYSTEM TAKING ON A POSITIVE TILT DURING THE DAY. DEFORMATION BAND INDICATED TO SET UP TUESDAY MORNING THEN WEAKEN DURING THE AFTERNOON AS BETTER DYNAMICS SHIFT EAST. TEMPERATURES WILL AGAIN BE A LIMITING FACTOR AS READINGS STAY IN THE LOWER 30S IN MOST OF THE AREA. TOTAL SNOWFALL WILL LIKELY BE IN THE 1-2 INCH RANGE WITH ISOLATED 3 INCH AMOUNTS IN PARTS OF NORTHEAST NEBRASKA INTO NORTHWEST IOWA. SOUTHERN PARTS OF THE AREA WILL HAVE TO WAIT UNTIL TUESDAY AFTERNOON OR TUESDAY EVENING TO SEE THEIR MAIN PERIOD OF SNOW WITH AMOUNTS OF UP TO AN INCH POSSIBLE BY WEDNESDAY MORNING. IT WILL BECOME WINDY DURING THE DAY ON TUESDAY WITH WINDY CONDITIONS EXPECTED TO CONTINUE INTO TUESDAY NIGHT. SNOW WILL END BY WEDNESDAY MORING IN EASTERN AREAS BUT CLOUDS MAY LINGER ACROSS THE ENTIRE AREA FOR MUCH OF THE DAY. CLOUD COVER IS EXPECTED TO DECREASE WEDNESDAY NIGHT INTO CHRISTMAS DAY WITH WARMER AIR RETURNING TO THE REGION AS ANOTHER WEATHER SYSTEM APPROACHES THE CENTRAL ROCKIES. .LONG TERM...(THURSDAY NIGHT THROUGH MONDAY) ISSUED AT 154 PM CST MON DEC 22 2014 THE CENTRAL ROCKIES SYSTEM WILL MOVE INTO THE PLAINS REGION THURSDAY NIGHT INTO FRIDAY BRINGING ANOTHER CHANCE OF SOME LIGHT SNOW TO MAINLY WESTERN AND NORTHERN PARTS OF THE REGION. THIS WILL BE FOLLOWED BY A SERIES OF ADDITIONAL WEATHER SYSTEMS INDICATED TO MOVE ACROSS THE REGION INTO EARLY NEXT WEEK WITH A TREND TOWARD COLDER TEMPERATURES AND A CHANCE OF MORE LIGHT SNOW ON MONDAY. && .AVIATION...(18Z TAFS FOR KOFK...KLNK AND KOMA.) ISSUED AT 1139 AM CST MON DEC 22 2014 IFR CIGS AND RAIN WILL REMAIN OVER THE KOMA AREA FOR SEVERAL HOURS DURING THE AFTERNOON BEFORE THIS AREA OF PRECIPITATION ROTATES NORTHEAST. SOME IMPROVEMENT TO MVFR CIGS AND LITTLE PRECIPITATION IS EXPECTED AT KOFK AND KLNK MUCH OF THE AFTERNOON INTO THE EVENING. ANOTHER AREA OF PRECIPITATION WILL ROTATE BACK INTO EASTERN NEBRASKA OVERNIGHT. CIGS SHOULD LOWER TO IFR AGAIN AT ALL SITES BETWEEN 06Z AND 12Z ALONG WITH INCREASING CHANCES FOR SNOW. KOFK AND KOMA ARE IN THE BEST LOCATIONS AS FAR AS SEEING SNOW...AND COULD DROP VSBYS TO A MILE OR LESS AT TIME BETWEEN 12Z AND 18Z. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...NONE. IA...NONE. && $$ SHORT TERM...FOBERT LONG TERM...FOBERT AVIATION...DERGAN

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.