Area Forecast Discussion
Issued by NWS

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194
FXUS64 KLUB 190735
AFDLUB

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LUBBOCK TX
235 AM CDT SUN OCT 19 2014

.SHORT TERM...
THE SHORTWAVE TROUGH WHICH BROUGHT SCATTERED RAIN SHOWERS TO
PORTIONS OF THE SOUTH PLAINS AND ROLLING PLAINS YESTERDAY AFTN...WAS
TRANSLATING ENE ACROSS NWRN OKLAHOMA PER 07Z WATER VAPOR IMAGERY.
LOOKING AT THE SFC...WINDS WERE GENERALLY OF AN UPSLOPE REGIME
THUS PROMOTING ENDURING DECENT LOW LEVEL MOISTURE /DEWPOINTS IN
THE 40S/. IT IS THEREFORE NOT SURPRISING TO SEE A FEW VERY LIGHT
ISOLATED SHOWERS /PERHAPS ONLY PRODUCING SPRINKLES IF THAT/ NOTED
ACROSS PORTIONS OF THE SOUTHERN SOUTH PLAINS AND LOW ROLLING
PLAINS. WILL NEED TO KEEP AN EYE ON THE POTENTIAL FOR LOW CLOUDS
AND/OR FOG LATER THIS MORNING AS THE TEMP-DEWPOINT SPREAD
GRADUALLY NARROWS.

ATTENTION QUICKLY TURNS TO AN UA TROUGH DIGGING ESE ACROSS THE NRN
BAJA EARLY THIS MORNING...AS IT IS PROGGED TO PINCH OFF WHILST
NEARING NWRN OLD MEXICO THIS AFTN. THIS SYSTEM MAY BE CLOSE ENOUGH
TO AID IN TRANSPORTING GULF MOISTURE TO ACROSS THE REGION /DEWPOINTS
INCREASING INTO THE 50S BY THE AFTN/ COUPLED WITH PERSISTENT S-SE
SFC WINDS TO ENCOURAGE ISOLATED-SCATTERED SHOWERS TODAY...
PARTICULARLY ACROSS THE SRN PORTIONS OF THE CWA. ALTHOUGH
MID-LEVEL INSTABILITY OF A 100-300 J/KG APPEARS INSIGNIFICANT...
LIKE YESTERDAY A FEW LIGHTNING STRIKES WILL STILL BE POSSIBLE MORE
SO DURING THE AFTN. CLOUD COVER IS EXPECTED TO SCOUR OUT LATE THIS
AFTN WHICH WILL LEAD TO TEMPS WARMING ONLY TO NEAR SEASONAL NORMS
/70S/. TONIGHT...CHANCES FOR SCATTERED LIGHT SHOWERS WILL
CONTINUE...MAINLY ON THE CAPROCK NEAREST TO THE UA DISTURBANCE.
MODEL SOUNDINGS HINT AT THE RETURN OF LOW CLOUDS MAKING FOR A MILD
NIGHT /50S/.

&&

.LONG TERM...
MODELS CONTINUING TO COME INTO AGREEMENT FOR THE MAIN FOCUS OF THE
FCST WHICH IS A POTENTIAL WIDESPREAD RAIN EVENT MIDWEEK. BEFORE
THEN WILL SEE AN UPPER LOW MOVE VERY SLOWLY EWD ACROSS NRN MEXICO
TO FAR WEST TEXAS THROUGH TUESDAY. ENOUGH LOW AND MID LEVEL
MOISTURE TO BE PRESENT TO SEE SOME WEAKLY-FORCED SHOWERS TRY TO
SPREAD NEWD INTO MAINLY THE SWRN AND WRN SECTIONS OF THE FCST AREA
WITH ONLY SOME MINOR ADJUSTMENTS TO MAGNITUDE AND AREAL EXTENT OF
PRECIP MENTION FOR MONDAY AND TUESDAY. BY ABOUT TUESDAY NIGHT WILL
SEE A SHARP UPPER TROUGH MOVE EWD ACROSS THE ROCKIES...PHASING
WITH THE LOW OVER FAR WEST TEXAS THEN CROSSING THE HIGH PLAINS IN
THE WEDNESDAY TO WEDNESDAY NIGHT TIME FRAME. WILL CONTINUE TO
FAVOR THE WETTER ECMWF SOLUTION AS MODELS HAVE BEEN PERSISTENT IN
SHOWING THIS FEATURE TO BE FAIRLY VIGOROUS AS IT MOVES OFF THE
ROCKIES...IN PARTICULAR ON THE SRN END OF THE TROUGH AS THE MODELS
END CLOSING A LOW IN THE BASE OF THE TROUGH JUST TO OUR EAST.
HOWEVER WITH THE MODELS TRENDING TOWARD A MORE PROGRESSIVE
SOLUTION...EVEN WITH THAT CLOSED LOW DEVELOPING...PRECIP SHOULD
COME TO AN END ACROSS THE FCST AREA BY THURSDAY AFTN. AFTERWARDS...
UPPER RIDGING ACROSS THE WRN CONUS WILL BEGIN TO PUSH EWD WITH
FAIR WEATHER AND SEASONAL TEMPS LATE WEEK INTO NEXT WEEKEND.

&&

.PRELIMINARY POINT TEMPS/POPS...
FRIONA        70  51  73  49  72 /  10  20  20  20  20
TULIA         72  52  76  51  74 /  10  10  20  10  10
PLAINVIEW     71  54  75  52  74 /  10  10  20  10  10
LEVELLAND     71  55  73  54  73 /  20  20  30  20  20
LUBBOCK       71  55  74  54  74 /  20  10  30  20  10
DENVER CITY   70  55  71  57  71 /  20  20  30  20  30
BROWNFIELD    72  56  73  55  73 /  20  20  30  20  20
CHILDRESS     76  57  81  57  80 /  10  10  10  10  10
SPUR          74  58  78  57  77 /  20  10  20  10  10
ASPERMONT     77  60  79  57  79 /  20  10  20  10  10

&&

.LUB WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

29/07

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