Area Forecast Discussion
Issued by NWS Wichita, KS

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FXUS63 KICT 020818
AFDICT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WICHITA KS
318 AM CDT THU JUL 2 2015

.SHORT TERM...(TODAY THROUGH SATURDAY)
ISSUED AT 306 AM CDT THU JUL 2 2015

TODAY:
UNCERTAINTY ABOUNDS WITH SURFACE FRONT HUNG UP ACROSS SOUTHERN KS
EARLY THIS MORNING. INTIAL THINKING IS THAT THE BOUNDARY WOULD
CONTINUE TO DRIFT SOUTH. MEANWHILE CONVECTION OVER WESTERN NEB IS
HEADED THIS WAY...BUT IS MOVING INTO AN INCREASINGLY UNFAVORABLE
AIRMASS. SUSPECT REMNANTS WILL MOVE INTO AT LEAST PARTS OF CENTRAL
KS THIS MORNING...BUT NOT CONFIDENT ON COVERAGE BY/AFTER 1800 UTC.
ALSO NOT AS SURE WHERE/WHEN STORMS WOULD ERUPT ON FRONT...BUT
CURRENT THOUGHT IS THIS MAY BE IN NORTHERN OK...NOT KS AS PREVIOUS
THOUGHT...SINCE CONVECTIVE DEBRIS FROM NEB STORMS WILL LIKELY
OVERSPREAD MOST OF THE FORECAST AREA. SHORT TERM MODELS HAVE BEEN
OF LITTLE HELP...SO FORECAST BASIS IS HEAVILY WEIGHTED ON SYNOPTIC
SCALE PATTERN/ EXTRAPOLATION/EVOLUTION. TEMPERATURES EQUALLY
CHALLENGING...AND WENT WITH A CUSTOM BLEND OF GUIDANCE THAT DID
WELL YESTERDAY...AND AM EXPECTING ANOTHER LATE DAY RALLY.

TONIGHT:
PRECIPITATION MAY BE MINIMAL...WITH HIGHEST POTENTIAL ALONG THE
OK BORDER AT START OF THE PERIOD...AND MAYBE IN CENTRAL KS
TOWARDS DAYBREAK FRI AS MORE CONVECTION ROLLS OFF HIGH PLAINS.

FRI-SAT:
THERE WAS SOME AGREEMENT WITH FAIRLY DECENT SHORTWAVE/SPEED MAXIMUM
AT 300MB FOR FRI NIGHT...BUT LOW LEVEL MODEL DATA SUGGEST THE
FORECAST AREA MAY BE WELL NORTH OF SURFACE FRONT. STRENGTH OF
DYNAMICS WILL KEEP AT LEAST SOME SMALL POPS FOR THIS PERIOD...BUT
NOT MUCH MORE AT THIS POINT. SO CALLED AIRMASS STORMS POSSIBLE ON
SAT AFTERNOON/EVENING...BUT MUCH BETTER CHANCE APPEARS AFTER 0600
UTC SUN...WITH GOOD WARM AIR ADVECTION ADVECTION PATTERN TO
SUSTAIN A HIGH PLAINS MCS ROLLING ACROSS CENTRAL KS. -HOWERTON

.LONG TERM...(SUNDAY THROUGH WEDNESDAY)
ISSUED AT 306 AM CDT THU JUL 2 2015

FORECAST THIS PERIOD IS QUITE PROBLEMATIC. MEDIUM RANGE MODELS HAVE
BEEN STRUGGLING WITH LONGWAVE PATTERN TRANSITION...WHICH WILL
LIKELY PERSIST INTO THIS PERIOD. NEXT ADD IN NIGHTLY MCS POTENTIAL
AND RESULTANT BOUNDARIES AND IMPACT ON SYNOPTIC SCALE FRONTS.
THEN FINISH IT OFF WITH SURFACE BOUNDARY POTENTIALLY IN THE
FORECAST AREA...WHICH ARE NOTORIOUSLY TOUGH TO FORECAST IN JULY AS
THEY RUN INTO THE UPPER RIDGE. INITIALIZATION GRIDS AND CONSENSUS
ARE FOLLOWING THE LATEST RUN/COVECTIVE BULLSEYES. WOULD HAVE
PREFERRED TO TEMPER THAT FORECAST WITH ONLY LOWER END CHANCE
POPS...WITH A CLIMATOLOGICALLY FAVORED NOCTURNAL BIAS. -HOWERTON

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z THURSDAY NIGHT)
ISSUED AT 1153 PM CDT WED JUL 1 2015

THE FRONT IS WOBBLING OVER KICT...AND HAVE MADE THE WINDS VARIABLE
FOR THE FIRST COUPLE OF HOURS OF THE TAF TO ACCOUNT FOR THIS.
THINK THE FRONT WILL EVENTUALLY MOVE SOUTHWARD AND WINDS WILL
BECOME NORTHWARD AT KICT AND KCNU. SOME OF THE ACTIVITY IN FAR
EASTERN KANSAS MAY IMPACT KCNU...AND HAVE LEFT A VCTS TO ACCOUNT
FOR THIS. NOT OVERLY CONFIDENT IT WILL REACH THAT FAR
WESTWARD...BUT OVER THE NEXT COUPLE OF HOURS A THUNDERSTORM MAY
IMPACT KCNU. BEYOND 09Z...THINK THE MAIN THUNDERSTORM CONCERN WILL
BE SOUTH OF THE TERMINALS...AND THE NEXT CONCERN MAY BE MVFR
CEILINGS AT A FEW OF THE TERMINAL SITES. NOT OVERLY CONFIDENT ON
THIS EITHER...AND ONLY HAVE SCATTERED CEILINGS FOR NOW. WINDS
THURSDAY WILL GENERALLY BE NORTHERLY. THERE WILL BE A CHANCE FOR
SHOWERS AND THUNDERSTORMS...BUT GUIDANCE HAS HAD SOME
DISCREPANCIES SO LEFT OUT ANY MENTION AT THIS TIME. WATCH FOR
LATER FORECASTS.

BILLINGS WRIGHT

&&

.PRELIMINARY POINT TEMPS/POPS...
WICHITA-KICT    88  71  88  69 /  30  20  20  20
HUTCHINSON      87  70  88  65 /  20  20  20  10
NEWTON          86  69  85  68 /  20  20  20  20
ELDORADO        87  69  87  66 /  30  20  20  20
WINFIELD-KWLD   90  71  89  68 /  30  30  30  20
RUSSELL         85  68  88  65 /  40  20  20  10
GREAT BEND      84  68  88  65 /  30  20  20  10
SALINA          86  68  86  67 /  30  20  20  10
MCPHERSON       86  69  86  66 /  20  20  20  10
COFFEYVILLE     86  70  85  66 /  30  30  30  30
CHANUTE         84  68  83  66 /  30  20  30  20
IOLA            83  68  82  66 /  30  20  30  20
PARSONS-KPPF    85  69  85  65 /  30  30  30  20

&&

.ICT WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$



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