Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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000
FXUS63 KOAX 202045
AFDOAX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
345 PM CDT WED MAY 20 2015

.SHORT TERM...(TONIGHT THROUGH SATURDAY)
ISSUED AT 338 PM CDT WED MAY 20 2015

A FEW SPOTTY PATCHES OF DRIZZLE/SPRINKLES CONTINUE TO MOVE OVER THE
AREA THIS AFTERNOON AND SHOULD DISSIPATE ALL TOGETHER THIS
EVENING AS UPPER LEVEL SHORTWAVE ACROSS THE EASTERN DAKOTAS MOVES
INTO THE GREAT LAKES REGION.

SKIES WILL BE SLOW TO CLEAR FROM NORTH TO SOUTH OVERNIGHT WHILE
WINDS GO LIGHT AND VARIABLE AS HIGH PRESSURE BUILDS OVER CENTRAL
NEBRASKA BY 12Z THU. THIS COULD LEAD TO SOME PATCHY FROST IN LOW
LYING AREAS ACROSS PORTIONS OF NORTHEAST NEBRASKA WITH LOWS IN THE
UPPER 30S IN AREAS. IN ADDITION...A MOIST GROUND...LIGHT WINDS
AND CLEARING SKIES COULD LEAD TO SOME PATCHY FOG DEVELOPMENT
OVERNIGHT.

SFC HIGH PRESSURE WILL BUILD SOUTHEAST THURSDAY. LITTLE MIXING WILL
KEEP HIGHS GENERALLY IN THE 60S BUT SKIES WILL BE SUNNY AND WINDS
WILL BE LIGHT. STRONG RETURN FLOW WILL SET UP ON FRIDAY WHILE A
SHARP MID LEVEL SHORTWAVE TROUGH MOVES NORTH ACROSS THE HIGH PLAINS
OF COLORADO. STRONG UPSLOPE SHOULD HELP SHOWER/TSTMS DEVELOP ACROSS
WESTERN NEBRASKA. THESE WILL BEGIN TO SPREAD EAST INTO FRIDAY
AFTERNOON AND SO HAVE POPS INCREASING ACROSS OUR WESTERN CWA FRIDAY
AFTERNOON AND SPREADING EAST THROUGH THAT EVENING.

.LONG TERM...(SATURDAY NIGHT THROUGH WEDNESDAY)
ISSUED AT 338 PM CDT WED MAY 20 2015

AN UNSETTLED PATTERN WILL CONTINUE INTO THE WEEKEND AND NEXT
WEEK. A SOUTHWESTERN CONUS UPPER TROUGH WILL ROUND THE FOUR
CORNERS REGION ON SATURDAY WITH LEE SIDE SFC LOW PRESSURE CENTERED
OVER THE HIGH PLAINS. STRONG SOUTHERLY FLOW OUT AHEAD OF THIS WILL
SEND INCREASING LOW LEVEL MOISTURE TO THE CENTRAL PLAINS AND
INTERMITTENT CHANCES OF SHOWERS AND THUNDERSTORMS.

A COLD FRONT IS PROGGED TO MOVE THROUGH THE CWA ON SUNDAY AND COULD
BE THE FOCUS FOR ADDITIONAL SHOWERS AND TSTMS. ANOTHER PIECE OF
SHORTWAVE ENERGY WILL BE MOVING INTO THE CENTRAL PLAINS EARLY
MONDAY PROVIDING CONTINUED CHANCES FOR SHOWERS AND TSTMS.

SHORTWAVE RIDGING WILL MOVE OVERHEAD ON TUESDAY BUT IS SHORT-LIVED
AS ANOTHER SHARP SHORTWAVE DARTS EAST ACROSS THE NORTHERN PLAINS
DRAGGING A BOUNDARY INTO THE CWA BY MID WEEK. AHEAD OF THIS
BOUNDARY...WARMER TEMPS MOVE TOWARD THE AREA.

&&

.AVIATION...(18Z TAFS FOR KOFK...KLNK AND KOMA.)
ISSUED AT 1216 PM CDT WED MAY 20 2015

MVFR/PATCHY IFR CIGS WILL GRADUALLY IMPROVE THIS AFTERNOON AND
THIS EVENING AS DRIER AIR WORKS IN FROM THE NORTHWEST. SOME PATCHY
LIGHT RAIN AND DRIZZLE INCLUDE EARLY ON AS WELL WITH THE SHORTWAVE
SWINGING THROUGH. VFR CONDITIONS EXPECTED ONCE THESE LOWER CLOUDS
GET SCOURED OUT. MAY SEE SOME PATCHY FOG THURSDAY MORNING WITH THE
LIGHT WINDS AND WET GROUND/DECREASING CLOUDS.


&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...NONE.
IA...NONE.
&&

$$

SHORT TERM...KERN
LONG TERM...KERN
AVIATION...ZAPOTOCNY



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