Special Weather Statement, NWS Wichita, KS

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WICHITA KS
616 AM CDT THU AUG 27 2015

...UPDATED FOR 12Z AVIATION DISCUSSION...

.SHORT TERM...(TODAY THROUGH SATURDAY)
ISSUED AT 257 AM CDT THU AUG 27 2015

ISOLATED-SCATTERED ELEVATED THUNDERSTORMS ARE POSSIBLE THIS MORNING
OVER FAR EASTERN KANSAS...ON THE EASTERN EDGE OF THE ELEVATED MIXED
LAYER...WHERE WEAK MOISTURE TRANSPORT/ISENTROPIC UPGLIDE (310K) IS
INDICATED. MUCAPES OF 2000-3000 J/KG AND EFFECTIVE BULK SHEAR OF
25-45 KT COULD RESULT IN A COUPLE OF STRONG-SEVERE STORMS WITH A
HAIL THREAT. ANY STORM ACTIVITY THAT DEVELOPS SHOULD WANE TOWARD
MID-LATE MORNING...AS THE WEAK LLJ WEAKENS/BACKS.

A WELL-ADVERTISED SHORTWAVE TROUGH OVER THE NORTHERN/CENTRAL ROCKIES
EARLY THIS MORNING PER WATER VAPOR IMAGERY...WILL TRANSLATE SLOWLY
EASTWARD ACROSS THE CENTRAL PLAINS/UPPER MIDWEST LATE TODAY THROUGH
FRIDAY...WITH A WEAK ATTENDANT COLD FRONT. SCATTERED STORMS SHOULD
DEVELOP LATE THIS AFTERNOON ALONG THE FRONT AND PRE-FRONTAL
TROUGH...FROM WESTERN NEBRASKA INTO NORTHWESTERN KANSAS AS SURFACE-
BASED INHIBITION IS REMOVED FROM HEATING AND HEIGHT FALLS/ASCENT
ASSOCIATED WITH THE SHORTWAVE TROUGH. THE CONVECTION MAY MERGE INTO
ONE OR MORE CLUSTERS TONIGHT...AS A 45 KNOT SOUTHWESTERLY LOW-LEVEL
JET DEVELOPS ACROSS THE REGION. A RELATIVELY GREATER STORM COVERAGE
AND HIGHER RAINFALL FORECAST (0.25-0.75 INCH) IS EXPECTED ACROSS
CENTRAL KANSAS...WITH LESSER COVERAGE/AMOUNTS FURTHER SOUTH.
MODERATE INSTABILITY AND 25-35 KNOTS OF DEEP LAYER SHEAR MAY SUPPORT
A FEW STRONG-MARGINALLY SEVERE STORMS IN CENTRAL KANSAS THIS EVENING
WITH HAIL/WIND THREATS.

A SECONDARY VORT LOBE ON THE BACKSIDE OF THIS SHORTWAVE TROUGH...IS
PROGGED TO SLIDE SOUTHEASTWARD ACROSS EASTERN KANSAS FRIDAY
AFTERNOON/EVENING WITH THE WEAK COLD FRONT SLOWER TO MOVE THROUGH
SOUTH-CENTRAL AND SOUTHEAST KANSAS. SCATTERED DIURNALLY-ENHANCED
THUNDERSTORMS ARE EXPECTED IN THOSE AREAS...WITH WEAKENED
INHIBITION...MODERATE INSTABILITY AND WEAK-MODERATE SHEAR...ALTHOUGH
MID-LEVEL LAPSE RATES ARE PROGGED TO BE WEAKER THAN DAY 1.

A DRY POST-FRONTAL REGIME IS ANTICIPATED ON SATURDAY BEHIND THE
DEPARTING UPPER TROUGH...AND FRONT WHICH MAY HANG UP JUST SOUTH
OF THE OKLAHOMA BORDER.

FORECAST 1000-850 THICKNESSES ON THE GFS/NAM-WRF/RAP INDICATE WARMER
THAN AVERAGE HIGHS TODAY...ALTHOUGH LEANED WITH THE MIDDLE OF ROAD
GFS BASED ON IT'S VERIFICATION YESTERDAY. DRIER WEATHER IS
EXPECTED SATURDAY BEHIND THE FRONT...WITH TEMPERATURES FALLING A
FEW DEGREES BELOW AVERAGE BUT STILL SEASONABLY WARM.

JMC

.LONG TERM...(SUNDAY THROUGH WEDNESDAY)
ISSUED AT 257 AM CDT THU AUG 27 2015

AN ELONGATED MID-LEVEL RIDGE IS PROGGED FROM THE SOUTHERN/CENTRAL
PLAINS TO THE GREAT LAKES DURING THE MEDIUM RANGE PERIOD. A MID-
LEVEL WEAKNESS/UPPER TROUGH IS PROGGED TO RETROGRADE SLIGHTLY
WESTWARD ACROSS THE LOWER/MID MISSISSIPPI VALLEY. THIS SHOULD
SUPPORT A MAINLY DRY FORECAST IN OUR AREA...WITH SLIGHTLY ABOVE
AVERAGE TEMPERATURES.

JMC

&&

.AVIATION...(FOR THE 12Z TAFS THROUGH 12Z FRIDAY MORNING)
ISSUED AT 611 AM CDT THU AUG 27 2015

A CLUSTER OF ELEVATED STRONG-SEVERE STORMS WILL CONTINUE TO
AFFECT FAR SOUTHEASTERN KANSAS THROUGH MID-LATE MORNING BEFORE
ENDING...IN AREA OF 850 MOISTURE TRANSPORT AND ISENTROPIC UPGLIDE.
WILL INCLUDE TEMPO +TSRA AT CNU TERMINAL. CLOUD TO GROUND
LIGHTNING AND LARGE HAIL ARE THE MAIN THREATS.

SOUTH-SOUTHEASTERLY FLOW WILL INCREASE DIURNALLY TODAY AREA-WIDE
WITH SOME GUSTS OF 20-26 KNOTS IN CENTRAL/SOUTH CENTRAL KANSAS.
SCATTERED STORMS ARE PROGGED TO DEVELOP ALONG A WEAK COLD FRONT
LATE THIS PM/EVE FROM WESTERN NEBRASKA INTO NORTHWESTERN KS. THESE
STORMS SHOULD INCREASE INTO A CLUSTER OR TWO OF STORMS AS THEY
PROGRESS EASTWARD ACROSS CENTRAL/NORTHERN KANSAS OVERNIGHT...AIDED
BY A 45 KNOT LOW-LEVEL JET AND ASSOCIATED MOISTURE TRANSPORT. RSL
AND SLN HAVE HIGHEST PROBABILITIES OF TSRA IMPACTS
OVERNIGHT...WITH LESSER CHANCES AT THE MORE SOUTHERN TERMINAL
SITES.

JMC

&&

.PRELIMINARY POINT TEMPS/POPS...
WICHITA-KICT    93  72  88  66 /  10  30  20  10
HUTCHINSON      94  70  88  64 /  10  40  20  10
NEWTON          92  70  88  65 /  10  40  20  10
ELDORADO        92  69  89  66 /  10  20  30  10
WINFIELD-KWLD   94  72  89  67 /  10  20  30  20
RUSSELL         96  67  87  61 /  50  70  10  10
GREAT BEND      97  67  88  61 /  40  60  10  10
SALINA          94  70  87  62 /  20  60  10  10
MCPHERSON       93  70  87  64 /  10  50  20  10
COFFEYVILLE     89  69  87  67 /  50  10  40  30
CHANUTE         89  68  87  66 /  60  10  40  30
IOLA            88  68  86  66 /  60  10  40  30
PARSONS-KPPF    89  69  87  67 /  60  10  40  30

&&

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

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SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
857 AM CDT THU AUG 27 2015

KSZ096-271430-
NEOSHO KS-
857 AM CDT THU AUG 27 2015

THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A

* SIGNIFICANT WEATHER ADVISORY FOR...
  WESTERN NEOSHO COUNTY IN SOUTHEASTERN KANSAS...

* UNTIL 930 AM CDT

* AT 855 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A STRONG THUNDERSTORM NEAR CHANUTE...MOVING SOUTH AT 25
  MPH.

HAIL UP TO THE SIZE OF NICKELS...AND WIND GUSTS UP TO 50 MPH WILL BE
POSSIBLE WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  CHANUTE...ERIE...THAYER...GALESBURG...EARLTON...LAKE PARSONS...
  CHANUTE AIRPORT AND SOUTH MOUND.

LAT...LON 3769 9550 3769 9527 3739 9522 3739 9552
TIME...MOT...LOC 1355Z 0DEG 20KT 3762 9539

COOK

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
911 AM CDT THU AUG 27 2015

KSZ099-271445-
MONTGOMERY KS-
911 AM CDT THU AUG 27 2015

THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A

* SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHEASTERN MONTGOMERY COUNTY IN SOUTHEASTERN KANSAS...

* UNTIL 945 AM CDT

* AT 909 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A STRONG THUNDERSTORM NEAR DEARING...OR 6 MILES SOUTH OF
  INDEPENDENCE...MOVING SOUTH AT 30 MPH.

HAIL UP TO THE SIZE OF NICKELS...AND WIND GUSTS UP TO 50 MPH WILL BE
POSSIBLE WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  COFFEYVILLE...INDEPENDENCE...DEARING...TYRO...LIBERTY...BOLTON AND
  INDEPENDENCE AIRPORT.

LAT...LON 3701 9588 3722 9584 3721 9561 3701 9558
      3700 9558 3700 9588
TIME...MOT...LOC 1409Z 7DEG 28KT 3714 9573

COOK

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