Flash Flood Warning 90, NWS Fort Worth, TX

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
1034 AM CDT TUE OCT 13 2009

.UPDATE...
THE MAKINGS OF A HEAVY RAINFALL EVENT FOR PART OF NORTH TEXAS ARE
UNDERWAY. RICH MOISTURE IS IN PLACE ACROSS THE REGION WITH THE
KFWD 12Z SOUNDING SHOWING 2.22 INCHES OF PWAT. SEVERAL UPPER LEVEL
DISTURBANCES ARE CROSSING THE REGION AND THE NEXT ONE IS EVIDENT
MOVING ACROSS WEST TEXAS NEAR WINK. ISENTROPIC LIFT CONTINUES
ACROSS THE REGION AND THE WARM FRONT IS MOVING INTO OUR
SOUTHEASTERN COUNTIES THIS MORNING. THE FRONT IS CURRENTLY LOCATED
ALONG A LINE FROM LONGVIEW TO CAMERON. IN ADDITION...TROPICAL
STORM PATRICIA NEAR BAJA IS SUPPLYING ADDITIONAL MOISTURE TO THE
REGION.

HEAVY RAINFALL HAS BEEN FALLING ACROSS THE EASTERN AND
NORTHEASTERN PORTIONS OF NORTH TEXAS SINCE ABOUT DAYBREAK AND
FLASH FLOODING IS ALREADY ONGOING IN COUNTIES EAST OF THE DFW
METROPLEX. A FLASH FLOOD WATCH WAS ISSUED EARLIER FOR THIS AREA.
THE BACK EDGE OF PRECIPITATION CAN BE SEEN MOVING THROUGH SAN
ANGELO BUT RAINFALL IS EXPECTED TO CONTINUE DEVELOPING DURING THE
DAY. HOWEVER...WE SHOULD SEE THE BULK OF THE RAINFALL END THIS
AFTERNOON AND EVENING.

OTHERWISE...ADJUSTED POPS A LITTLE BASED ON TRENDS BUT STILL
INDICATE THE RAIN SHIFTING AND ENDING FROM WEST TO EAST THIS
AFTERNOON AND EVENING. REMOVED THE FOG WORDING FROM THE ZONES BUT
A FEW AREAS NEAR THE WARM FRONT WILL CONTINUE TO SEE FOG THROUGH
THE MORNING HOURS. THE WARM FRONT IS FORECAST TO REMAIN DRAPED
ACROSS THE SOUTHERN PORTIONS OF NORTH TEXAS TODAY RESULTING IN
HIGHER TEMPERATURES /UP TO THE UPPER 70S/ SOUTH OF THE FRONT.
ADJUSTED HIGH TEMPERATURES A BIT BASED ON CURRENT OBSERVATIONS.

82/JLD

&&

.AVIATION...
/12Z TAFS/

TODAY...LIFR CONDITIONS WILL PREVAIL. EXPECT PERIODS OF RAIN
BEFORE NOON. BULK OF RAIN SHOULD PUSH OUT OF METRO SITES BY
17Z...WITH LINGERING 5SM VISIBILITY AND SKIES AROUND 800 FEET. FOR
WACO...EXPECT CONTINUED RAIN THIS AFTERNOON...FINALLY MOVING OUT
BY 00Z.

TONIGHT...IFR WITH PERIODS OF LIFR. EXPECT FOG TO REDEVELOP AT
METRO SITES BETWEEN 08Z-12Z...WITH 1SM VISIBILITY.

&&

.PREV UPDATE...
.UPDATE...
QUICK UPDATE DUE TO HEAVIER...EMBEDDED CONVECTION WILL LIKELY OCCUR
ALONG AND SE OF A SHERMAN...WEATHERFORD...COMANCHE LINE...ESPECIALLY
INTO EARLY AFTERNOON. SO HAVE ADDED HEAVY RAIN WORDING PER LOOK AT
HPC QPF VALUES OF 1-2 INCHES...LOCALLY HIGHER AMOUNTS WITH RICH
PACIFIC MOISTURE FROM WEAKENING ERN PACIFIC HURRICANE COMBINING
WITH INCREASING WAA/MOISTURE COMING FROM THE GULF OF MEXICO. NO
WATCHES EXPECTED...THOUGH LOCALIZED FLOODING CANT BE RULED OUT
ACROSS THESE AREAS. UPDATE SENT.

05/

&&

.PREV DISCUSSION... /ISSUED 331 AM CDT TUE OCT 13 2009/
SLOPPY...WET...AND AT TIMES...FOGGY CONDITIONS THIS MORNING FOR
COMMUTERS ACROSS NORTH TEXAS THIS MORNING. SOME LOCALIZED AREAS HAVE
FALLEN BELOW A MILE...BUT DENSE FOG IS NOT WIDESPREAD...AS REQUIRED
FOR AN ADVISORY...THUS NO ADVISORY ISSUED. EXPECT AS RAIN/ THUNDER
SPREADS ACROSS THE REGION THIS MORNING...EXPECT VISIBILITIES WILL
VARY FROM 1/4 MILE TO 5 MILES. WELL MENTION AREAS OF FOG/WITH
PATCHY DENSE FOG IN FORECASTS THIS MORNING AND MENTION IN HAZARDOUS
WX OUTLOOK.

RAIN WITH EMBEDDED THUNDER SHOULD CONTINUE TO OVERSPREAD THE AREA
TODAY...THEN BE ANCHORED OVER FAR E/SERN COUNTIES FOR THE LATE DAY/
EVENING HOURS...AS FRONTAL BOUNDARY REMAINS ANCHORED JUST SOUTH OF
I-20 FOR THE NEXT 18-24 HRS. WITH THIS BEING THE CASE...WILL MENTION
MORE AREAS OF FOG ALONG AND NORTH OF THE FRONT TONIGHT...THOUGH WE
CANT RULE OUT A LITTLE PATCHY FOR SOUTH OF THE BOUNDARY AS WINDS
WILL BE RELATIVELY LIGHT.

BOUNDARY WILL BEGIN SLOWLY LIFTING INTO SRN OK BY WED MORNING AND
WILL CONTINUE HIGHEST RAIN CHANCES ACROSS NE COUNTIES IN VICINITY OF
BOUNDARY. COLD FRONT WILL THEN MOVE INTO THE REGION WED NIGHT AND SE
COUNTIES BY THURSDAY MORNING. WILL HAVE SOME THUNDERSTORM CHANCES
ALONG THE BOUNDARY...MAINLY ACROSS THE ERN HALF OF NORTH TX. WITH
SOME BRIEF 80S/TO NEAR 90 SOUTH OF I-20 WEDNESDAY AFTERNOON...
SURFACE INSTABILITY MAY BE ENOUGH AHEAD OF THE FRONT FOR A FEW
STRONG STORMS...BUT LAPSE RATES ALOFT ARE MOIST ADIABATIC AND DONT
EXPECT MUCH OF A SEVERE THREAT AT THIS TIME...THOUGH CANT RULE OUT
AN ISOLATED/MARGINALLY SEVERE STORM WED NIGHT/EARLY THURSDAY.

FRONT CLEARS THE AREA BY THURS AFTERNOON WITH DRY CONTINENTAL AIR
FILTERING INTO NORTH TX...BUT NOT OVERLY COLD. WINDS WILL BE BRISK
THURSDAY INTO THURS EVENING. HIGH PRESSURE WILL SETTLE OVER THE AREA
FRIDAY/EARLY SATURDAY...FOR SOME PLEASANT FALL CONDITIONS. A
REINFORCING FRONTAL SURGE LOOKS TO ARRIVE BY SAT NIGHT/EARLY SUNDAY
AND REINFORCE THE DRY/COOL CONDITIONS. LOOKS LIKE A PERIOD OF DRYING
OUT IS ON TAP FOR THE EXTENDED PERIOD.

05/

&&

.PRELIMINARY POINT TEMPS/POPS...
DALLAS-FT. WORTH, TX  69  65  82  64  76 / 100  30  20  30  20
WACO, TX              75  69  87  70  80 / 100  40  10  10  20
PARIS, TX             68  60  75  63  74 / 100  70  30  60  40
DENTON, TX            68  63  81  60  75 / 100  30  20  40  20
MCKINNEY, TX          68  61  80  62  75 / 100  40  30  50  20
DALLAS, TX            69  66  82  64  77 / 100  40  20  40  20
TERRELL, TX           70  65  82  66  78 / 100  60  20  40  30
CORSICANA, TX         74  67  84  69  79 / 100  60  20  20  30
TEMPLE, TX            75  70  88  71  86 / 100  50  10  10  20

&&

.FWD WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH UNTIL 9 PM CDT THIS EVENING FOR TXZ093>095-
104>107-119>123-134-135-146.

&&

69/82

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
911 AM CDT TUE OCT 13 2009

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-141200-
MONTAGUE-COOKE-GRAYSON-FANNIN-LAMAR-YOUNG-JACK-WISE-DENTON-COLLIN-
HUNT-DELTA-HOPKINS-STEPHENS-PALO PINTO-PARKER-TARRANT-DALLAS-
ROCKWALL-KAUFMAN-VAN ZANDT-RAINS-EASTLAND-ERATH-HOOD-SOMERVELL-
JOHNSON-ELLIS-HENDERSON-COMANCHE-MILLS-HAMILTON-BOSQUE-HILL-NAVARRO-
FREESTONE-ANDERSON-LAMPASAS-CORYELL-BELL-MCLENNAN-FALLS-LIMESTONE-
LEON-MILAM-ROBERTSON-
911 AM CDT TUE OCT 13 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT.

A FLASH FLOOD WATCH IS IN EFFECT THROUGH 9 PM TONIGHT FOR
LOCATIONS EAST AND NORTH OF A LINE FROM SHERMAN TO CORSICANA TO
ATHENS. SCATTERED THUNDERSTORMS ARE EXPECTED TODAY AND TONIGHT.

PATCHY DENSE FOG WILL REDUCE VISIBILITIES TO ONE HALF MILE OR
LESS THIS MORNING. AREAS OF FOG REDUCING VISIBILITIES BELOW ONE
MILE WILL REDEVELOP TONIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THUNDERSTORMS ARE POSSIBLE GENERALLY EAST OF INTERSTATE 35 WEDNESDAY
THROUGH THURSDAY MORNING.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
912 AM CDT TUE OCT 13 2009

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

0907 AM     FLASH FLOOD      1 N KAUFMAN             32.59N  96.32W
10/13/2009                   KAUFMAN            TX   EMERGENCY MNGR

            8 INCHES OVER HWY 175 1 MI N OF KAUFMAN

42

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