Area Forecast Discussion
Issued by NWS Goodland, KS

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FXUS63 KGLD 010147
AFDGLD

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
747 PM MDT TUE SEP 30 2014

.UPDATE...
ISSUED AT 747 PM MDT TUE SEP 30 2014

UPDATED THE FORECAST TO INPUT PATCHY FOG MENTION FOR LOCATIONS
EAST OF A LINE FROM MCCOOK NEBRASKA TO GOVE KANSAS. LIGHT
WINDS...MOISTURE POOLING ALONG THE FRONT AND COOLER AIR ADVECTING
IN FROM THE NORTHWEST SHOULD PROVIDE A FAVORABLE ENVIRONMENT FOR
FOG DEVELOPMENT. SOME OF THE HIGH-RESOLUTION MODELS INDICATE DENSE
FOG IS POSSIBLE SO WILL NEED TO WATCH TRENDS CLOSELY TONIGHT.

&&

.SHORT TERM...(TONIGHT THROUGH WEDNESDAY)
ISSUED AT 125 PM MDT TUE SEP 30 2014

LATEST WV IMAGERY AND RAP H5 ANALYSIS SHOW NEGATIVELY TILTED TROUGH
OVER THE NORTHER PLAINS WITH CLOSED CENTER OVER SOUTH DAKOTA. SEVERAL
WEAK EMBEDDED SHORTWAVE TROUGHS ARE CURRENTLY MOVING INTO CENTRAL
COLORADO AND COULD BE IN LINE TO IMPACT OUR CWA OVERNIGHT. AT THE
SURFACE A COLD FRONT CURRENTLY EXTEND FROM JUST EAST OF KMCK SOUTH
ACROSS THE OK/TX PANHANDLES WITH SURFACE HIGH PRESSURE BEGINNING TO
DEVELOP ALON THE CO/KS STATE LINE.

WITH FRONT STILL OVER PAR OF THE CWA I CANT COMPLETELY RULE OUT AN
ISOLATED SHOWER OR THUNDERSTORM OVER FAR EASTERN PART OF OUR CWA
WHERE ML CAPE 500-1500 J/KG IS LINGERING. SUBSIDENCE HAS SUPPRESSED
ANY CONVECTIVE REDEVELOPMENT SO FAR...AND GUIDANCE SHOWS ANY THREAT
REMAINING EAST AS FRONT CONTINUES TO PUSH SOUTH AND EAST OVERNIGHT.
AS WEAK SHORTWAVE TROUGH INDICATED BY NAM TO PASS OVER CWA TONIGHT
COULD BRING A FEW LIGHT SHOWERS/SPRINKLES TO THE NORTHWEST PART OF
THE CWA...HOWEVER THIS SHOULDNT AMOUNT TO MUCH CONSIDERING LIMITED
MOISTURE/INSTABILITY. OTHER GUIDANCE IS FAVORING DRY CONDITIONS...SO
DECIDED TO JUST KEEP MINIMAL SLIGHT CHANCE POPS IN PLACE 06-12Z
PERIOD. NAM/RAP/SREF HINTING AT STRATUS/FOG DEVELOPMENT OVER EASTERN
CWA WITH MOISTURE POOLING NEAR FRONTAL ZONE. NOT A LOT OF CONFIDENCE
IN THIS AS MID-HIGH CLOUDS WILL BE INCREASING AND COULD LIMIT
FOG/STRATUS POTENTIAL.

LATEST GUIDANCE SHIFTING FRONT FURTHER EAST ON WEDNESDAY...LIMITING
SEVERE POTENTIAL AND BETTER PRECIP POTENTIAL THROUGH MOST OF
WEDNESDAY AFTERNOON PERIOD. CURRENTLY THINK THE BEST CHANCE FOR ANY
AFTERNOON THUNDERSTORM DEVELOPMENT WILL BE TO BE AS FORCING
INCREASES FROM THE WEST/NORTHWEST LATER WEDNESDAY AFTERNOON. I
LIMITED 30-40 POPS TO THE LATE AFTERNOON IN OUR NORTHWEST. I KEPT
SLIGHT CHANCE POPS OVER MOST OF THE CWA WEDNESDAY AFTERNOON MAINLY
DUE TO BUILDING INSTABILITY AND AT LEAST WEAK FORCING BEHIND FRONTAL
ZONE...THOUGH I WOULDN`T BE SURPRISED IF WE REMAIN DRY UNTIL MAIN
PUSH COMES IN LATER WEDNESDAY EVENING.

.LONG TERM...(WEDNESDAY NIGHT THROUGH TUESDAY)
ISSUED AT 125 PM MDT TUE SEP 30 2014

SHORTWAVE TROUGH WILL SWING THROUGH WEDNESDAY NIGHT WITH HIGH
CHANCES OF PRECIPITATION. MODELS HAVE SHIFTED THE LOCATION OF THE
SURFACE COLD FRONT FURTHER SOUTH...AS A RESULT THE THREAT FOR
SEVERE WEATHER WILL LIKELY STAY SOUTH AS WELL. AVAILABLE
INSTABILITY IN OUR AREA WILL ALMOST ALL BE ELEVATED WITH ONLY A
SMALL AREA OF WEAK SBCAPE IN THE NORTHWEST EARLY IN THE EVENING.
THE MAIN THREAT FOR ANY STRONGER STORMS THAT DEVELOP WILL BE
MARGINALLY SEVERE HAIL DURING THE EVENING HOURS. RAIN WILL
CONTINUE THROUGH THE OVERNIGHT WITH ONLY ISOLATED STORMS AS
ELEVATED INSTABILITY DIMINISHES...POSSIBLY LINGERING IN EASTERN
AREAS INTO THURSDAY MORNING BEFORE ENDING BY MID DAY THURSDAY.

THE REMAINDER OF THE LONG TERM PERIOD WILL BE DOMINATED BY
NORTHWEST FLOW ALOFT AND A LARGE RIDGE WHICH WILL SLOWLY BUILD
OVER THE SOUTHWEST CONUS. THIS WILL RESULT IN DRY CONDITIONS AND
TEMPERATURES GRADUALLY WARMING BACK TO NEAR NORMAL AFTER A BRIEF
COOL DOWN THURSDAY AND FRIDAY.

&&

.AVIATION...(FOR THE 00Z TAFS THROUGH 00Z WEDNESDAY EVENING)
ISSUED AT 521 PM MDT TUE SEP 30 2014

VFR CONDITIONS ARE ANTICIPATED FOR MOST OF THIS FORECAST CYCLE.
ONLY CAUSE FOR CONCERN IS SOME OF THE HIGH-RESOLUTION MODELS ARE
INDICATING POTENTIAL FOG AROUND KMCK. MOST GUIDANCE HINTS THAT
FOG REMAINS SOUTHEAST OF TERMINAL BUT IT IS A LITTLE CLOSE FOR
COMFORT. PLACED A 6SM BR/SCT015 GROUP AS A HEDGE FOR NOW AND WILL
REFINE THIS GROUP AT THE 06Z RUN. OTHER THAN THAT...EXPECT LIGHT
AND VARIABLE WINDS WITH PERIODS OF MID/UPPER LEVEL CLOUDINESS.


&&

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

$$

UPDATE...RRH
SHORT TERM...DJR
LONG TERM...024
AVIATION...RRH



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