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 202245 AFDOAX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 545 PM CDT SAT SEP 20 2014 .SHORT TERM...(TONIGHT THROUGH TUESDAY) ISSUED AT 320 PM CDT SAT SEP 20 2014 THE MAIN FORECAST CONCERNS IN THE SHORT TERM WILL BE A REINFORCING COLD FRONT TONIGHT AND SOME INCREASED WINDS THIS EVENING...THEN THE RETURN OF SHOWER AND THUNDERSTORM CHANCES MONDAY NIGHT INTO THE REST OF THE WORK WEEK. THE SURFACE COLD FRONT CONTINUES TO PUSH THROUGH SOUTHEAST NEBRASKA INTO NORTHWEST KANSAS. MEANWHILE...A REINFORCING COLD FRONT WILL PUSH INTO THE PLAINS AS SHORTWAVE TROF ENERGY TRACKS FROM CANADA INTO MINNESOTA AND THE GREAT LAKES. THE LATEST WSR-88D RADAR IMAGERY SHOWS A CLUSTER OF STORMS NEAR THE COLD FRONT IN NORTHEAST KANSAS. IN ADDITION...AN AREA OF STORMS IS MOVING THROUGH MINNESOTA AND PARTS OF EASTERN SOUTH DAKOTA. TONIGHT...A FEW CLOUDS MAY AFFECT THE NORTHEAST PARTS OF THE FORECAST AREA...HOWEVER THE ORGANIZED PRECIPITATION IS EXPECTED REMAIN TO OUR NORTHEAST. IN ADDITION...STRONGER WINDS ALOFT WITH THE COLD AIR ADVECTION MAY RESULT IN SOME GUSTY SURFACE WINDS FOR A TIME THIS EVENING. WIND GUSTS IN THE 30 TO 35KT RANGE HAVE BEEN FREQUENT ACROSS SOUTH DAKOTA THIS AFTERNOON WITH THE 3-5MB PRESSURE RISES. THE STRONGER H9 WINDS OF 45KTS WILL TRACK ACROSS MINNESOTA...WITH 30 TO 35KT H9 WINDS ACROSS THE LOCAL FORECAST AREA. DID BOOST THE WINDS BEHIND THE SECONDARY COLD FRONT INTO THE 10 TO 16KT RANGE JUST BEHIND THE FRONT...THEN DROP THEM BACK TO LESS THAN 10KTS. LOWS TONIGHT SHOULD SETTLE BACK INTO THE 50S. FORECAST SOUNDINGS KEEP THE BULK OF THE MOISTURE TO OUR EAST SUNDAY...HOWEVER SOME INSTABILITY CUMULUS MAY DEVELOP FROM NEAR THE MISSOURI RIVER INTO WESTERN IOWA. COOLER HIGHS IN THE 70S ARE FORECAST FOR SUNDAY. SURFACE HIGH PRESSURE WILL PREVAIL SUNDAY NIGHT WITH LOWS IN THE 40S AND A FEW LOCAL LOWER 50S. MONDAY NIGHT AND TUESDAY...A MID TROPOSPHERIC TROF OVER THE ROCKIES WILL WORK IT/S WAY INTO THE PLAINS. THIS WILL BRING INCREASING MOISTURE AND INCREASING SHOWER AND THUNDERSTORM CHANCES WITH IT. TEMPERATURES MONDAY AND TUESDAY SHOULD REMAIN COOL TO NEAR NORMAL IN THE 70S. .LONG TERM...(TUESDAY NIGHT THROUGH SATURDAY) ISSUED AT 320 PM CDT SAT SEP 20 2014 THE UPPER LEVEL WEATHER SYSTEM OVER THE PLAINS IS SLOW TO MOVE...THUS THE CHANCE FOR SHOWERS AND THUNDERSTORMS REMAINS IN THE FORECAST TUESDAY NIGHT THROUGH FRIDAY. THE PRECIPITATION IS MORE ISOLATED AND THE FORCING WEAK ON FRIDAY. HIGHS SHOULD REMAIN COMFORTABLE IN THE 70S. && .AVIATION...(00Z TAFS FOR KOFK...KLNK AND KOMA.) ISSUED AT 545 PM CDT SAT SEP 20 2014 EXPECT VFR CONDITIONS THROUGH THE PERIOD. NORTH/NORTHWEST WINDS WILL DECREASE THIS EVENING...THEN INCREASE BY LATE SUNDAY MORNING. SOME GUSTS OVER 20 KNOTS WILL BE POSSIBLE SUNDAY AFTN. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...NONE. IA...NONE. && $$ SHORT TERM...ZAPOTOCNY LONG TERM...ZAPOTOCNY AVIATION...MILLER

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