000
FXUS64 KFWD 220158 AAB
AFDFWD

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
858 PM CDT TUE MAY 21 2013

.UPDATE...
SHOWERS AND THUNDERSTORMS SOUTHEAST OF A SULPHUR SPRINGS...
CORSICANA...TEMPLE LINE WILL CONTINUE TO MOVE EAST FOR THE REST OF
THE EVENING. HAVE LEFT SOME 20 PERCENT POPS IN PAST MIDNIGHT IN
THE SOUTHEASTERN MOST ZONES...BUT WE MAY BE ABLE TO REMOVE THAT
LATER THIS EVENING. THUNDERSTORMS ARE STILL OCCASIONALLY PRODUCING
SOME DIME TO NICKEL HAIL AND THAT WILL LIKELY CONTINUE THROUGH
11 PM.

THE HIGH RESOLUTION RAPID REFRESH IS INDICATING FOG MAINLY EAST
OF I-35 BEFORE DAYBREAK. GIVEN THE WET GROUND FROM TODAYS RAIN
AND LIGHT WINDS EXPECTED OVERNIGHT...WILL DO ANOTHER UPDATE IN
THE NEXT HALF HOUR TO ADD THE MENTION OF PATCHY FOG ALONG AND
EAST OF THE I-35 CORRIDOR.

58

&&

.AVIATION...
/00Z TAFS/

MAIN LINE OF THUNDERSTORMS HAS MOVED EAST OF ALL THE TAF SITES.
THERE IS STILL SOME SHOWER AND THUNDERSTORM DEVELOPMENT BEHIND
THE LEADING LINE OF STORMS BUT THIS ACTIVITY SHOULD ALSO REMAIN
EAST OF THE AIRPORTS. MVFR AND IFR CLOUDS ARE BEGINNING TO CLEAR
FROM WEST TO EAST. KAFW...KFTW...KGKY AND KACT ARE ALREADY VFR.
KDFW AND KDAL WILL KEEP MVFR CIGS THROUGH 01-02Z.

THE COLD FRONT HAS NOW PASSED THROUGH ALL THE TAF SITES WITH NORTH
TO NORTHWEST WINDS PREVAILING AROUND 10 KTS WITH SLIGHTLY HIGHER
GUSTS. WINDS WILL BECOME LIGHT OVERNIGHT. WITH THE LIGHT WINDS AND
RICH GROUND MOISTURE...FOG IS LIKELY TO DEVELOP OVERNIGHT. MUCH OF
THE FOG COULD BE GROUND FOG. FOR NOW...WILL PREVAIL 2-3 SM
BEGINNING AT 10Z AT THE TAF SITES...BUT IT IS POSSIBLE THAT SOME
LOCATIONS COULD SEE VISIBILITIES BETWEEN 1-2 SM. AS THE FOG BEGINS
TO LIFT AFTER SUNRISE...COULD ALSO SEE VERY LOW CLOUDS TEMPORARILY
DEVELOP. ANY FOG RESTRICTIONS SHOULD IMPROVE BY 14-15Z. FOR THE
REMAINDER OF TOMORROW...WINDS WILL COME AROUND THE SOUTHEAST AND
VFR WILL PREVAIL.

82/JLD


&&



.PREV DISCUSSION... /ISSUED 327 PM CDT TUE MAY 21 2013/
WE WILL BE DROPPING COUNTIES ALONG AND NORTHWEST OF A SHERMAN TO
WEATHERFORD...GLEN ROSE AND GOLDTHWAITE LINE FROM THE TORNADO WATCH WITH
THE RELEASE OF THE AFTERNOON FORECAST PACKAGE.

THE COLD FRONT WILL CONTINUE TO PUSH SOUTHEAST AT NEARLY 30 MPH
AT MID AFTERNOON AND IT SHOULD CLEAR THE FAR SOUTHEASTERN COUNTIES
EARLY THIS EVENING...AROUND 7PM. THE CONVECTION HAS MOSTLY BEEN A
STRAIGHT LINE WIND PRODUCER WITH MANY SITES REPORTING GUSTS 50-70
MPH. DENTON ASOS REPORTED A GUST TO 73 MPH AT 138 PM. WE WILL
CONTINUE TO RIDE WITH A TORNADO WATCH FOR THE REMAINDER OF THE CWA
LATE THIS AFTERNOON SINCE A DISCRETE CELL OR TWO COULD DEVELOP
AHEAD OF THE COLD FRONT.

COOLER TEMPERATURES AND NORTHWEST WINDS WILL SPREAD OVER MOST OF
THE CWA BEHIND THE COLD FRONT THIS EVENING. EXPECTING THE COOLEST
OVERNIGHT LOWS...MID 50S TO LOWER 60S...OVER THE NORTHWEST ONE
HALF IN THE MORNING WHERE SKIES SHOULD CLEAR TONIGHT.

A LONGWAVE RIDGE WILL BUILD OVER THE ROCKIES ON WEDNESDAY WITH
NORTHWEST FLOW ALOFT OVER THE REGION THROUGH THURSDAY. WEAK
IMPULSES IN THIS UPPER FLOW COULD RESULT IN ELEVATED SHOWERS OR
THUNDERSTORMS WEDNESDAY NIGHT AND AGAIN ON THURSDAY NIGHT. THE
THURSDAY NIGHT SYSTEM MAY DEVELOP INTO AN MCS OVER THE TEXAS PANHANDLE
AND SOME OF THIS ACTIVITY MAY SPREAD OVER THE CWA ON FRIDAY AS A
BACKDOOR COLD FRONT SLIDES INTO THE NORTHEAST COUNTIES.

THE UPCOMING MEMORIAL DAY WEEKEND IS LOOKING DRY AND SEASONABLY
WARM...BUT MANY TIMES IN THE PAST THIS WEEKEND HAS TURNED OUT TO
BE A STORMY ONE. FOR NOW WILL KEEP SAT-MON DRY WITH HIGHS IN THE
UPPER 90S TO MID 90S AND LOWS IN THE MID 60S TO LOWER 70S.

75



&&


.PRELIMINARY POINT TEMPS/POPS...
DALLAS-FT. WORTH, TX  61  88  67  90  70 /  20  10  10  10  10
WACO, TX              62  89  67  92  70 /  20  10  10  10  10
PARIS, TX             60  84  61  86  65 /  40  10  10  10  10
DENTON, TX            60  86  63  88  68 /  10  10  20  10  10
MCKINNEY, TX          61  87  63  89  68 /  20  10  10  10  10
DALLAS, TX            61  90  70  92  70 /  20  10  10  10  10
TERRELL, TX           62  87  64  91  69 /  30  10  10  10  10
CORSICANA, TX         62  89  67  92  70 /  40  10  10  10  10
TEMPLE, TX            63  89  67  92  69 /  40  20  10  10  10
MINERAL WELLS, TX     58  89  64  91  69 /  10  10  20  10  20

&&

.FWD WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

$$

82/58