Area Forecast Discussion
Issued by NWS Hastings, NE

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FXUS63 KGID 162339
AFDGID

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
639 PM CDT WED APR 16 2014

.SHORT TERM...(THIS EVENING THROUGH THURSDAY)
ISSUED AT 302 PM CDT WED APR 16 2014

MOST AREAS WILL REMAIN DRY AND COOLER THAN NORMAL THROUGH THURSDAY.
THE STRONG WINDS OF THIS AFTERNOON WILL GRADUALLY SLACKEN OFF DURING
THE EVENING AND OVERNIGHT HOURS AS THE PRESSURE GRADIENT RELAXES.

THE REMAINDER OF THE AFTERNOON INTO TONIGHT...THE SFC LOW WILL TRACK
EAST NORTHEAST FROM THE NEBRASKA/IOWA BORDER THIS AFTERNOON...INTO
WISCONSIN BY SUNRISE ON THURSDAY. THE QUICK MOVEMENT OF THIS SYSTEM
AWAY FROM US WILL ALLOW THE PRESSURE GRADIENT FORCE TO ALSO RAPIDLY
DECREASE AND THUS OUR WIND SPEEDS WILL DIE DOWN THROUGH THE EVENING
AND OVERNIGHT HOURS. THE WIND DIRECTION WILL REMAIN GENERALLY
NORTHWESTERLY...BUT COULD SHIFT CLOSER TO DUE NORTH BY DAWN.
TEMPERATURES ARE A CHALLENGE TONIGHT GIVEN UNCERTAINTY WITH REGARD
TO CLOUD COVER. THE DECREASING WIND SHOULD ALLOW TEMPERATURES TO
FALL OFF AND COLDER AIR IS ADVECTING IN BEHIND TODAYS COLD FRONT.
HOWEVER...SCATTERED TO BROKEN CLOUD COVER MAY ACT AS A BLANKET
HELPING TO HOLD TEMPERATURES UP A BIT. WILL STICK PRETTY CLOSE TO
ALLBLEND MODEL GUIDANCE FOR LOWS TONIGHT...WHICH WOULD RESULT IN
BELOW FREEZING TEMPERATURES FOR ALL NEBRASKA ZONES AND A FEW OF OUR
NORTHERN MOST KANSAS LOCATIONS. TEMPERATURES MAY NOT BE AS UNIFORM
AS FORECAST THOUGH AS ANY AREAS THAT CAN CLEAR OUT BETTER MAY DIP
COLDER THAN OUR GOING FORECAST...WHILE AREAS THAT HOLD MORE CLOUDS
COULD BE A TOUCH WARMER THAN OUR FORECAST. NORMAL LOWS FOR THIS TIME
OF YEAR ARE NOW IN THE UPPER 30S...SO WE ARE EXPECTING LOWS TO BE
AROUND 10 DEGREES COOLER THAN NORMAL.

THURSDAY...HIGH TEMPERATURES WILL LIKELY BE COOLER TOMORROW THAN
THEY WERE TODAY FOR MOST AREAS ALONG AND SOUTH OF INTERSTATE 80 DUE
TO THE COLDER AIR MOVING INTO PLACE BEHIND TODAYS COLD FRONT.
HOWEVER...THERE WILL BE MUCH LESS WIND AND THUS IT MIGHT ACTUALLY
FEEL NICER FOR MANY AREAS TOMORROW. THE LIGHT WIND WILL STILL BE OUT
OF THE NORTH IN THE MORNING...BUT EXPECT THE WIND TO SHIFT TO
SOUTHEAST BY AFTERNOON AS THE HIGH SLIDES OFF TO OUR EAST AND WE
BEGIN TO EXPERIENCE THAT WARMING RETURN FLOW BEHIND THE DEPARTING
HIGH. NORMAL HIGHS ARE NOW IN THE MID 60S AND WE SHOULD BE WELL
SHORT OF THAT WITH MOST AREAS SEEING HIGHS AROUND THE MID 50S. THE
LIGHT WIND WILL BE A WELCOMED CHANGE. A WEAK STORM SYSTEM WILL TRACK
OFF TO OUR SOUTH ACROSS KANSAS AND IS NOT EXPECTED TO IMPACT OUR
FORECAST AREA.

.LONG TERM...(THURSDAY NIGHT THROUGH WEDNESDAY)
ISSUED AT 302 PM CDT WED APR 16 2014

PRIMARY FORECAST CONCERN CONTINUES TO LIE WITH WEEKEND PRECIPITATION
CHANCES.

LOOKING AT THURSDAY NIGHT THROUGH FRIDAY NIGHT...HASNT BEEN A LOT OF
CHANGES IN THE LATEST RUN OF MODELS...WITH THE START OF THE PERIOD
SHOWING UPPER LEVEL NORTHWESTERLY FLOW ACROSS THE PLAINS...WITH
RIDGING IN BETWEEN A DEPARTING TROUGH AXIS AND AN AREA OF LOW
PRESSURE MOVING TOWARD THE SRN CA COAST. DRY CONDITIONS REMAIN IN
THE FORECAST...AS THIS RIDGE AXIS SLIDES EAST OUT OF THE ROCKIES AND
ONTO THE PLAINS...AND SHOULD BE RIGHT OVERHEAD BY FRIDAY EVENING. AT
THE SURFACE...EXPECTING THERE TO BE INCREASING SOUTHERLY WINDS
DURING THE DAYTIME HOURS ON FRIDAY...AS THE PRESSURE GRADIENT
TIGHTENS ACROSS THE REGION...THANKS TO LOW PRESSURE APPROACHING FROM
THE WEST. SPEEDS IN THE 15 TO 25 MPH RANGE CURRENTLY FORECAST.
STILL LOOKING AT A NICE BUMP UP IN TEMPS FROM THURSDAY...BUT OVERALL
NO NOTABLE CHANGES WERE MADE...WITH HIGHS SITTING IN THE UPPER 60S
TO LOWER 70S.

MOST INTERESTING TIMEFRAME OF THE LONG TERM PERIOD STILL LOOKING TO
BE THIS WEEKEND...AS THUNDERSTORM CHANCES MAKE THEIR WAY BACK INTO
THE REGION. BY 12Z SATURDAY...MODELS IN GOOD AGREEMENT SHOWING THE
UPPER LEVEL PATTERN HAVING TRANSITIONED TO SOUTHWESTERLY FLOW...AS
THAT ABOVE MENTIONED WEST COAST LOW HAS MOVED INLAND...AND IS
ROUGHLY LOCATED OVER WRN AZ.  THERE IS ANOTHER AREA OF UPPER LEVEL
LOW PRESSURE...LOCATED OVER CENTRAL CANADA...WHICH WILL SLIDE EAST
THROUGH THE DAY.  THIS DISTURBANCE WILL PUSH A SURFACE FRONTAL
BOUNDARY INTO WRN PORTIONS OF THE CWA DURING THE DAY...WHILE ALSO IS
AFFECTED BY AN AREA OF LOW PRESSURE BECOMING BETTER ORGANIZED OVER
SRN PORTIONS OF THE CO/KS BORDER.  WHILE SOME SCATTERED PRECIP A
POSSIBILITY THROUGH THE FIRST HALF OF THE DAY...CHANCES WILL BE
RAMPING UP THROUGH THE AFTERNOON AND EVENING HOURS...ESP ALONG THAT
SFC FRONT AS THE LARGER SCALE LIFT INCREASES WITH THE ARRIVAL OF
THAT UPPER LEVEL DISTURBANCE. MODELS DIFFER ON HOW WIDESPREAD AND
HEAVY QPF FIELDS ARE POST 00Z...WITH SOME INCREASE EXPECTED WITH THE
INCREASE OF THE LLJ. MODEL DEPICTED INSTABILITY CONTINUES TO
VARY...AND DEEPER LAYER SHEAR IS ON THE WEAKER SIDE...BUT CANT RULE
OUT SOME AT LEAST STRONG THUNDERSTORMS...WHICH AT THIS POINT LOOKS
TO PRIMARILY AFFECT THE SERN HALF OF THE CWA. FOR EASTER
SUNDAY...THE MAIN UPPER LEVEL TROUGH AXIS IS EXPECTED TO PUSH
THROUGH THE REGION...AND THE BETTER CHANCES FOR PRECIP REMAIN OVER
SERN PORTION OF THE CWA...AND ACTIVITY SHOULD DIMINISH THROUGH THE
DAY. NOT QUITE BUYING INTO THE LATEST RUN OF THE ECMWF...WHICH IS
SHOWING A CLOSED MID/UPPER LEVEL CIRCULATION DEVELOPING LATE IN THE
DAY SUNDAY...THUS RESULTING IN MORE QPF AND A MUCH SLOWER DEPARTURE.
THE 12Z GFS/GEM KEEP THINGS OPEN AND MORE PROGRESSIVE...SO KEPT
FORECAST TRENDED THAT WAY. WILL SEE HOW UPCOMING RUNS TREND BEFORE
INSERTING ANOTHER PERIOD OF POPS SUNDAY NIGHT.

LOOKING AHEAD THE UPCOMING START OF THE WORK WEEK...THE FORECAST FOR
MON/TUES REMAIN DRY...WITH UPPER LEVEL RIDGING DEVELOPING ONCE AGAIN
OVER THE ROCKIES/HIGH PLAINS IN BETWEEN SYSTEMS...AND GRADUALLY
MAKING ITS WAY ONTO THE PLAINS. MORE UNCERTAINTY ARRIVES IN THE
FORECAST AS WE GET TOWARD MIDWEEK...AS A NOTABLE UPPER LEVEL LOW
PRESSURE SYSTEM MOVES ONTO/DEVELOPS OVER THE PAC NW/NRN ROCKIES
REGION. POSSIBLE A SHORTWAVE PIECE OF ENERGY OUT AHEAD OF THIS
SYSTEM COULD BRING SOME PRECIP CHANCES TO THE CWA ON WED...AND HAVE
SLIGHT CHANCE POPS GOING.

AS FAR AS TEMPERATURES GO...THE ULTIMATE AMOUNT OF CLOUDS/PRECIP IN
THE AREA WILL OBVIOUSLY AFFECT THINGS THIS WEEKEND...ESP
SUNDAY...BUT CURRENT FORECAST HIGHS ARE IN THE UPPER 60S/MID 70S FOR
SATURDAY AHEAD OF THE FRONT...WITH MID 60S ON SUNDAY. EXPECTING
HIGHS TO CLIMB BACK INTO THE MID AND POSSIBLY UPPER 70S FOR
TUES/WED.

&&

.AVIATION...(FOR THE 00Z TAFS THROUGH 00Z THURSDAY EVENING)
ISSUED AT 626 PM CDT WED APR 16 2014

MVFR CLOUDS ARE WORKING INTO THE TERMINAL THIS EVENING AND WILL
SETTLE IN DURING THE OVERNIGHT HOURS...WITH CIGS RAISING DURING
THE DAY ON THURSDAY. GUSTY NORTH WINDS BEHIND A COLD FRONT WILL
GRADUALLY SUBSIDE TONIGHT AS SFC HIGH PRESSURE SETTLES IN. THE
RIDGE AXIS WILL SHIFT EAST ON THURSDAY WITH WINDS BECOMING LIGHT
AND VARIABLE BEFORE TRANSITIONING SE ON THE BACK SIDE OF THE HIGH.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...NONE.
KS...NONE.

&&

$$

SHORT TERM...WESELY
LONG TERM...ADO
AVIATION...FAY



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