Severe Thunderstorm Warning 37, NWS Fort Worth, TX

TXZ091>095-098>107-115>123-129>135-141>148-156>162-174-175-041730-

SEVERE WEATHER OUTLOOK FOR NORTH TEXAS
NATIONAL WEATHER SERVICE FORT WORTH TX
515 AM CST FRI APR 4 1997

...THERE IS SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT...

THE UPPER LEVEL LOW OVER THE SOUTHWEST UNITED STATES WAS FINALLY
MOVING EASTWARD THIS MORNING. DEEP TROPICAL MOISTURE WAS IN PLACE
ACROSS NORTH TEXAS WHERE SCATTERED TO NUMEROUS THUNDERSTORMS WERE
ALREADY IN PROGRESS. AS THE LOW APPROACHES...COOLER TEMPERATURES
ALOFT WILL FURTHER DESTABILIZE THE ATMOSPHERE. FURTHERMORE...THE
VERTICAL WIND PROFILE WILL STRENGTHEN AND PROVIDE FOR INCREASED
ORGANIZATION OF STORMS.

THE MAIN THREAT THIS MORNING WILL BE FROM HEAVY RAIN AND POSSIBLE
FLOODING...PARTICULARLY ACROSS CENTRAL AND EASTERN AREAS OF NORTH
TEXAS. AS THE LOW AND PACIFIC FRONT APPROACHES...THE SEVERE WEATHER
POTENTIAL WILL INCREASE WITH STORMS EXPECTED TO DEVELOP ACROSS
WESTERN AREAS THIS AFTERNOON AND THEN MOVE ACROSS NORTH TEXAS IN THE
FORM OF A SQUALL LINE TONIGHT. LARGE HAIL AND DAMAGING STRAIGHT LINE
WINDS WILL BE THE MAIN SEVERE WEATHER THREAT. THE POTENTIAL FOR
FLOODING WILL CONTINUE OVER THE CENTRAL AND EASTERN AREAS OF NORTH
TEXAS WHERE THE GROUND WILL ALREADY BE SATURATED FROM OVERNIGHT AND
MORNING RAINFALL.

EMERGENCY MANAGEMENT AND STORM SPOTTERS SHOULD BE READY FOR LIMITED
ACTIVATION THIS MORNING. MORE WIDESPREAD ACTIVATION WILL BE REQUIRED
BY MID AFTERNOON WEST OF A GRAHAM TO GOLDTHWAITE LINE...BY LATE
AFTERNOON WEST OF A GAINESVILLE TO FORT WORTH TO KILLEEN LINE...BY
THE EARLY AND MID EVENING HOURS WEST OF A BONHAM TO KAUFMAN TO
FRANKLIN LINE...AND LATE EVENING WEST OF A PARIS TO CENTERVILLE LINE.

IN ADDITION...A VERY TIGHT PRESSURE GRADIENT IS EXPECTED IN THE WAKE
OF THE PACIFIC COLD FRONT. SOUTHWEST AND WEST WINDS BEHIND THE FRONT
WILL INCREASE DRAMATICALLY DURING THE DAY SATURDAY AND CURRENT
FORECAST WINDS OF 20 TO 30 MPH AND GUSTY MAY NEED TO BE UPGRADED.
PERSONS PLANNING ANY TYPE OF OUTDOOR ACTIVITIES SATURDAY SHOULD
MONITOR THE LATEST WEATHER FORECASTS AND PREPARE FOR VERY STRONG
WINDS.

68

TXZ091>095-098>107-115>123-129>135-141>148-156>162-174-175-041730-

SEVERE WEATHER OUTLOOK FOR NORTH TEXAS
NATIONAL WEATHER SERVICE FORT WORTH TX
515 AM CST FRI APR 4 1997

...THERE IS SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT...

THE UPPER LEVEL LOW OVER THE SOUTHWEST UNITED STATES WAS FINALLY
MOVING EASTWARD THIS MORNING. DEEP TROPICAL MOISTURE WAS IN PLACE
ACROSS NORTH TEXAS WHERE SCATTERED TO NUMEROUS THUNDERSTORMS WERE
ALREADY IN PROGRESS. AS THE LOW APPROACHES...COOLER TEMPERATURES
ALOFT WILL FURTHER DESTABILIZE THE ATMOSPHERE. FURTHERMORE...THE
VERTICAL WIND PROFILE WILL STRENGTHEN AND PROVIDE FOR INCREASED
ORGANIZATION OF STORMS.

THE MAIN THREAT THIS MORNING WILL BE FROM HEAVY RAIN AND POSSIBLE
FLOODING...PARTICULARLY ACROSS CENTRAL AND EASTERN AREAS OF NORTH
TEXAS. AS THE LOW AND PACIFIC FRONT APPROACH...THE SEVERE WEATHER
POTENTIAL WILL INCREASE WITH STORMS EXPECTED TO DEVELOP ACROSS
WESTERN AREAS THIS AFTERNOON AND THEN MOVE ACROSS NORTH TEXAS IN THE
FORM OF A SQUALL LINE TONIGHT. LARGE HAIL AND DAMAGING STRAIGHT LINE
WINDS WILL BE THE MAIN SEVERE WEATHER THREAT. THE POTENTIAL FOR
FLOODING WILL CONTINUE OVER THE CENTRAL AND EASTERN AREAS OF NORTH
TEXAS WHERE THE GROUND WILL ALREADY BE SATURATED FROM OVERNIGHT AND
MORNING RAINFALL.

EMERGENCY MANAGEMENT AND STORM SPOTTERS SHOULD BE READY FOR LIMITED
ACTIVATION THIS MORNING. MORE WIDESPREAD ACTIVATION WILL BE REQUIRED
BY MID AFTERNOON WEST OF A GRAHAM TO GOLDTHWAITE LINE...BY LATE
AFTERNOON WEST OF A GAINESVILLE TO FORT WORTH TO KILLEEN LINE...BY
THE EARLY AND MID EVENING HOURS WEST OF A BONHAM TO KAUFMAN TO
FRANKLIN LINE...AND LATE EVENING WEST OF A PARIS TO CENTERVILLE LINE.

IN ADDITION...A VERY TIGHT PRESSURE GRADIENT IS EXPECTED IN THE WAKE
OF THE PACIFIC COLD FRONT. SOUTHWEST AND WEST WINDS BEHIND THE FRONT
WILL INCREASE DRAMATICALLY DURING THE DAY SATURDAY AND CURRENT
FORECAST WINDS OF 20 TO 30 MPH AND GUSTY MAY NEED TO BE UPGRADED.
PERSONS PLANNING ANY TYPE OF OUTDOOR ACTIVITIES SATURDAY SHOULD
MONITOR THE LATEST WEATHER FORECASTS AND PREPARE FOR VERY STRONG
WINDS.

68