Severe Thunderstorm Warning 175, NWS Goodland, KS

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
549 PM MDT SAT JUN 15 2013

.SHORT TERM...(THIS EVENING THROUGH SUNDAY)
ISSUED AT 216 PM MDT SAT JUN 15 2013

A RIDGE OVER THE ROCKIES WILL KEEP WESTERLY FLOW OVER THE CENTRAL
PLAINS. SURFACE HIGH PRESSURE WILL REMAIN OVER THE CENTRAL PLAINS
TONIGHT. LOW PRESSURE WILL BE OVER EASTERN COLORADO SUNDAY.

SHORTWAVES WILL BE COMING OVER THE RIDGE TONIGHT AND SUNDAY. SURFACE
CONVERGENCE IN EASTERN COLORADO WILL PROMOTE THUNDERSTORM INITIATION
OVER THE HIGHER TERRAIN IN EASTERN COLORADO THIS EVENING. STORMS
WILL MOVE SLOWLY EAST INTO NORTHWEST KANSAS. CAPE VALUES WILL RANGE
FROM 1800 TO 2400 J/KG. SHEAR WILL BE AROUND 40KTS. LARGE HAIL AND
DAMAGING WIND WILL BE THE MAIN THREAT THIS EVENING. THE SURFACE
TROUGH IN EASTERN COLORADO WILL BE THE FOCUS FOR THUNDERSTORM
INITIATION SUNDAY AFTERNOON AS THE NEXT SHORTWAVE IMPACTS THE AREA.
STEERING WIND WILL MOVE STORMS SLOWLY EAST INTO NORTHWEST KANSAS.
PLAN TO GO WITH HIGHER CHANCE POPS TONIGHT AND CHANCE POPS SUNDAY.

BOUNDARY LAYER RH INCREASES TO ABOVE 90 PERCENT BEHIND THE
THUNDERSTORMS LATE TONIGHT OVER THE NORTHERN ZONES AND PORTIONS OF
EASTERN COLORADO. EXPECT STRATUS TO MOVE INTO THOSE AREAS WITH THE
POSSIBILITY OF SOME PATCHY FOG.

MIN TEMPERATURES TONIGHT WILL COOL TO THE LOWER TO MID 60S. MAX
TEMPERATURES SUNDAY WILL RISE TO THE UPPER 80S.

.LONG TERM...(SUNDAY NIGHT THROUGH SATURDAY)
ISSUED AT 248 PM MDT SAT JUN 15 2013

SUNDAY NIGHT-WEDNESDAY NIGHT...UNSETTLED/ACTIVE PATTERN WILL REMAIN
IN PLACE THROUGH MIDWEEK. A COLD FRONT WILL DROP SOUTH OVER CWA SUN
NIGHT AND BAROCLINIC ZONE SETS UP OVER CWA. IN ADDITION TO SURFACE
SUPPORT...WE WILL SEE A SERIES OF SHORTWAVE TROUGH MOVING ACROSS THE
AREA THE CWA...PROVIDING PERIODS OF UPPER LEVEL SUPPORT THAT COULD
ENHANCE THUNDERSTORM COVERAGE. BETTER MODEL CONSENSUS IS FOR EASTERN
LOCATIONS SUNDAY NIGHT AS AFTERNOON ACTIVITY TRANSITIONS
EASTWARD...WITH A DRY PERIOD MONDAY MORNING. ADDITIONAL ACTIVITY
SHOULD THEN DEVELOP FROM THE WEST AND THEN MOVE EASTWARD MONDAY
AFTERNOON. BEYOND THAT PERIOD I AM LESS CONFIDENT REGARDING
TIMING/COVERAGE WITH VERY MOIST AIRMASS STILL LINGERING AND DECENT
INSTABILITY IN PLACE...COMBINED WITH CONTINUED UPPER LEVEL
SUPPORT. I GENERALLY BROAD-BRUSHED POPS MON NIGHT THROUGH WED
NIGHT...WITH CHANCE POPS ACROSS THE CWA. SOME OF THESE STORMS
COULD BE EFFICIENT RAINFALL PRODUCERS CONSIDERING PWATS IN EXCESS
OF 1 INCH AND SLOW STORM MOTIONS THIS COULD SUPPORT LOCALLY HEAVY
RAIN...HOWEVER TO THIS POINT WE HAVE NOT SEEN THIS REALIZED WITH
RECENT RAINS. SEASONAL TEMPS SHOULD RETURN BEHIND COLD FRONT WITH
HIGHS GENERALLY IN THE LOW TO MID 80S...THOUGH PRECIP/CLOUDS
WILL HAVE NORMAL LOCAL IMPACTS WHERE THEY OCCUR.

THURSDAY-SATURDAY...DRY CONDITIONS AND ABOVE NORMAL HIGHS RETURN
THURSDAY AS H5 RIDGE BEGINS TO DEEPEN OVER THE SOUTHERN PLAINS...AND
SHORTWAVE RIDGE DEVELOPS NORTH INTO WESTERN KANSAS. SOUNDING ARE
VERY DRY ACROSS MUCH OF THE CWA. GFS/ECMWF BOTH SHOW SERIES OF VORT
MAXIMA PASSING THROUGH MEAN FLOW FRIDAY THROUGH
SATURDAY...WITH BEST SUPPORT SAT AS TOP OF RIDGE BEGINS TO FLATTEN.
HOWEVER...ECMWF IS THE ONLY MODEL INITIATING ANYTHING IN OUR NORTH
FRI/FRI NIGHT...WHERE I KEPT 20 POPS IN PLACE. CONSIDERING THE DEEP
DRY AIRMASS IN PLACE AND HIGH LCL/LFC HEIGHTS...IF WE DO SEE
THUNDERSTORMS THEY WILL BE VERY ISOLATED CONSIDERING THE AIRMASS
IN PLACE AND NOT MUCH RAINFALL WOULD BE EXPECTED.

&&

.AVIATION...(FOR THE 00Z TAFS THROUGH 00Z SUNDAY EVENING)
ISSUED AT 532 PM MDT SAT JUN 15 2013

CURRENT FOCUS FOR TAFS WILL BE THE TSTORMS MOVING INTO EASTERN
COLORADO AFFECTING KGLD AROUND 01Z AND KMCK AROUND 03Z. TEMPO
GROUP WAS INCLUDED FOR KGLD SINCE GUSTS AROUND 57KTS WERE RECORDED
IN LIMON COLORADO WITH THE TSTORM GUST FRONT MOVING EAST TOWARDS
KGLD. VISIBILITY WITH TSTORMS COULD ALSO BE REDUCED...SO REDUCED
VISIBILITY TO 5SM FOR KGLD. TSTORMS SHOULD BE IN THE VICINITY OF
KMCK AROUND 03Z BUT A TEMPO GROUP WAS NOT INCLUDED AT THIS TIME.
ONCE THE STORM EVOLUTION AND MOVEMENT ARE BETTER KNOWN...A TEMPO
GROUP MAY BE ADDED LATER.

THE NEXT FOCUS FOR TAFS WILL BE THE LOW STRATUS THAT COULD MOVE IN
DURING THE MORNING HOURS FOR KMCK AROUND 09Z. REDUCED CEILINGS TO
IFR FROM 09Z TO 15Z TO ACCOUNT FOR THE LOW LEVEL MOISTURE MOVING
IN ALONG WITH WINDS GOING LIGHT FROM THE EAST. KGLD MAY SEE
LOWERING CEILINGS...BUT ONLY INCLUDED A SCT CEILING AND KEPT VFR
CONDITIONS SINCE LOW LEVEL MOISTURE FOR KGLD IS NOT AS FAVORABLE.
SHOWERS AND TSTORMS ARE POSSIBLE TOMORROW AFTERNOON...BUT LEFT
VCTS OUT OF THE TAFS THAT FAR OUT SINCE CONFIDENCE IS LOW ON
TIMING OF TSTORMS.

&&

.GLD WATCHES/WARNINGS/ADVISORIES...
KS...NONE.
CO...NONE.
NE...NONE.
&&

SHORT TERM...FS
LONG TERM...DR
AVIATION...ALW

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PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
748 PM MDT SAT JUN 15 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0737 PM     HAIL             6 E BURLINGTON          39.31N 102.16W
06/15/2013  E0.75 INCH       KIT CARSON         CO   TRAINED SPOTTER

            SPOTTER REPORTED DIME-SIZED HAIL.

&&

ALW

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE GOODLAND KS
751 PM MDT SAT JUN 15 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0737 PM     TSTM WND GST     6 E BURLINGTON          39.31N 102.16W
06/15/2013  M67.00 MPH       KIT CARSON         CO   TRAINED SPOTTER

            SPOTTER OBSERVED WIND GUST OF 67 MPH WITH STORM THAT JUST
            PASSED THROUGH.

&&

ALW

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
812 PM MDT SAT JUN 15 2013

KSZ027-028-041-042-160245-
GREELEY-LOGAN-WALLACE-WICHITA-
912 PM CDT SAT JUN 15 2013

...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY FOR LOGAN COUNTY IN WEST CENTRAL KANSAS...GREELEY
COUNTY IN WEST CENTRAL KANSAS...WICHITA COUNTY IN WEST CENTRAL KANSAS
AND WALLACE COUNTY IN WEST CENTRAL KANSAS...

AT 908 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORM OUTFLOW WINDS ALONG A LINE EXTENDING FROM 14 MILES
SOUTH OF EDSON TO 3 MILES EAST OF WALLACE TO 10 MILES NORTH OF
SELKIRK TO 4 MILES SOUTHEAST OF TRIBUNE...MOVING EAST AT 25 MPH.
THESE OUTFLOW WINDS WILL BE NEAR SELKIRK AROUND 925 PM CDT...LEOTI
AROUND 945 PM CDT...WINONA AROUND 950 PM CDT...RUSSELL SPRINGS
AROUND 955 PM CDT...MARIENTHAL AROUND 1005 PM CDT AND MONUMENT
AROUND 1015 PM CDT.

WINDS TO 50 MPH AND BLOWING DUST CREATING REDUCED VISIBILITIES ARE
EXPECTED.

BE PREPARED TO TAKE SHELTER IN THE EVENT THESE STORMS INTENSIFY AND
BECOME SEVERE.

&&

LAT...LON 3840 10174 3871 10153 3913 10159 3913 10090
      3869 10091 3870 10112 3843 10113
TIME...MOT...LOC 0212Z 270DEG 22KT 3913 10154 3892 10150
          3861 10149 3844 10166

THEDE

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