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 111120 AFDOAX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 520 AM CST THU FEB 11 2016 .SHORT TERM...(TODAY THROUGH SATURDAY) ISSUED AT 240 AM CST THU FEB 11 2016 SIMILAR SITUATION THIS MORNING WITH YESTERDAY MORNING AS NEXT BAND OF LIGHT SNOW TRACKS OUT OF THE DAKOTAS AND INTO WESTERN IOWA DURING THE DAY. YESTERDAYS EVENT WAS MUCH FASTER THAN FORECAST WITH CLOUDS AND SNOW WELL EAST OF THE AREA BY AFTERNOON. SATELLITE SHOWS MORE EXTENSIVE CLOUD SHIELD ACROSS THE AREA EARLY THIS MORNING ALTHOUGH NO SURFACE REPORTS OF SNOW UPSTREAM OVER WESTERN NORTH DAKOTA AS OF 08Z. HIGH PRESSURE WAS CENTERED OVER CENTRAL MINNESOTA WITH THE LOW CLOUDS OVER THE WESTERN EDGE OF THE HIGH AND EAST OF A BAROCLINIC ZONE OVER WESTERN NEBRASKA. SHORT RANGE MODELS SHOW A PERIOD OF WEAK LOW LEVEL WARM TO NEUTRAL ADVECTION DEVELOPING BY LATE MORNING THROUGH THE AFTERNOON AS A WEAK SURFACE WAVE MOVES INTO CENTRAL NEBRASKA. THIS SHOULD BE THE PRIMARY PERIOD FOR THE CHANCE OF LIGHT SNOW FOR EXTREME EASTERN NEBRASKA AND SOUTHWEST IOWA. 290K ISENTROPIC SURFACE ALSO SHOWS SIMILAR TRACK AND LOCATION OF THE SNOW BAND DURING THIS TIME. ALSO LIKE YESTERDAY IT APPEARS THE BETTER CHANCE OF MEASURABLE SNOW WILL BE ACROSS WESTERN PARTS OF IOWA WITH AN INCH OR TWO POSSIBLE BY THIS EVENING IN PARTS OF WEST CENTRAL IOWA WITH LESS THAN AN INCH IN PARTS OF NORTHEAST NEBRASKA. COLDER AIR THEN MOVES IN BEHIND THIS SYSTEM TONIGHT INTO FRIDAY AS MAIN CORE OF ARCTIC HIGH PRESSURE MOVES TOWARD THE LOWER MISSOURI VALLEY. BAROCLINIC ZONE LOOKS TO SET UP OVER THE WESTERN HIGH PLAINS DURING THIS TIME THEN STARTS TO PUSH EAST AS A WARM FRONT ON SATURDAY. THE WARM ADVECTION AND ANOTHER NORTHERN STREAM SHORT WAVE WILL BRING ANOTHER CHANCE OF LIGHT SNOW TO THE AREA ON SATURDAY AND SATURDAY NIGHT. .LONG TERM...(SATURDAY NIGHT THROUGH WEDNESDAY) ISSUED AT 240 AM CST THU FEB 11 2016 TREND TURNS TOWARD WARMER TEMPERATURES DURING THE EXTENDED PERIOD WITH ADDITIONAL PERIODS OF WARM ADVECTION BRINGING SOME CHANCE OF LIGHT SNOW TO THE AREA SUNDAY NIGHT AND MONDAY NIGHT. STRONG WARMING INDICATED BY LATE IN THE WEEK AS UPPER RIDGE BUILDS ACROSS THE CENTRAL PART OF THE NATION. && .AVIATION...(12Z TAFS FOR KOFK...KLNK AND KOMA.) ISSUED AT 517 AM CST THU FEB 11 2016 IFR/MVFR CONDITIONS AT ALL TAF SITES THROUGH MOST OF THE PERIOD. COULD BE SOME LIGHT SNOW FLURRIES THAT AFFECTS KOMA 19Z-05Z. THE SNOW MAY BE JUST NORTH OF KOFK...AND WILL HAVE TO WATCH IF IT MAKES THAT FAR SOUTHWEST. MOSTLY JUST FLURRIES AT KOMA...WITH MEASURABLE SNOW JUST A FEW MILES TO THE NORTH AND NORTHEAST. NORTHEASTERLY WINDS BECOMING SOUTHEAST...AND EVENTUALLY NORTHWEST THROUGH THE PERIOD AS THE AREA OF LOW PRESSURE MOVES THROUGH THE REGION. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...NONE. IA...NONE. && $$ SHORT TERM...FOBERT LONG TERM...FOBERT AVIATION...DEWALD

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