Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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000 FXUS63 KOAX 240841 AFDOAX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 341 AM CDT MON AUG 24 2015 .SHORT TERM...(TODAY THROUGH WEDNESDAY) ISSUED AT 324 AM CDT MON AUG 24 2015 QUIET AND COOL CONDITIONS ARE EXPECTED THROUGH TUESDAY. THUNDERSTORM CHANCES WILL RETURN TO THE FORECAST LATE WEDNESDAY NIGHT THROUGH FRIDAY. A BROAD UPPER LEVEL RIDGE OF HIGH PRESSURE OVER THE WESTERN STATES WILL AMPLIFY WHILE SHIFTING EAST THROUGH THE WEEK. AN AREA OF SFC HIGH PRESSURE EXTENDS OVER A LARGE PORTION OF THE CENTRAL CONUS THIS MORNING. DRY AIR IN PLACE...CLEAR SKIES AND LIGHT WINDS HAVE ALLOWED TEMPS TO DROP INTO THE LOWER TO MID 40S IN SOME LOCATIONS. WITH WEAK MIXING TODAY...HIGHS SHOULD SLOWLY WARM TO THE MID TO UPPER 70S WITH A FEW AREAS IN OUR SOUTHWEST MAYBE APPROACHING 80. SFC HIGH PRESSURE WILL REMAIN OVER THE FORECAST AREA TONIGHT WHICH SHOULD ALLOW TEMPS TO DROP INTO THE 40S AND LOWER 50S ONCE AGAIN. LITTLE MIXING BY TUESDAY WILL KEEP HIGHS COOL AGAIN WITH READINGS SIMILAR TO TODAY`S. .LONG TERM...(WEDNESDAY NIGHT THROUGH SUNDAY) ISSUED AT 324 AM CDT MON AUG 24 2015 A FAST MOVING MID LEVEL SHORTWAVE TROUGH WILL TOP THE MID/UPPER RIDGE LATE WEDNESDAY AND DRIFT SOUTHEAST THROUGH THE NORTHERN/CENTRAL PLAINS STATES THROUGH FRIDAY. STRONG ISENTROPIC UPGLIDE LATE WEDNESDAY NIGHT IN WARM AIR ADVECTION REGIME WILL CONTINUE TO WARRANT A SMALL POP THROUGH THE OVERNIGHT HOURS. POPS INCREASE THURSDAY/THURSDAY NIGHT IN ADVANCE OF THE APPROACHING MID LEVEL SHORTWAVE. STRENGTHENING SOUTHWESTERLY NOCTURNAL LOW LEVEL JET THURSDAY NIGHT INTO FRIDAY MORNING SHOULD SUSTAIN CONVECTION INTO FRIDAY MORNING. THE UPPER TROUGH AND AN ASSOCIATED SFC COLD FRONT WILL PUSH SOUTHEAST OF THE CWA FRIDAY ALLOWING UPPER RIDGING TO BUILD EAST INTO THE CENTRAL PLAINS THROUGH THE WEEKEND. SOUTHERLY LOW LEVEL RETURN FLOW IS EXPECTED TO SPREAD OVER THE AREA THROUGH THE WEEKEND WITH TEMPERATURES RETURNING TO AT OR ABOVE NORMAL LEVELS BY LATE IN THE WEEKEND/EARLY NEXT WEEK. && .AVIATION...(06Z TAFS FOR KOFK...KLNK AND KOMA.) ISSUED AT 1151 PM CDT SUN AUG 23 2015 PATCHY MVFR FOG COULD DEVELOP AROUND 12Z AT ALL EASTERN NEBRASKA TAF SITES. OTHERWISE CLEAR SKIES AND NORTHWEST WINDS NEAR OR UNDER 10KT ARE FORECAST THROUGH MONDAY EVENING. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...NONE. IA...NONE. && $$ SHORT TERM...KERN LONG TERM...KERN AVIATION...DERGAN

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