Severe Thunderstorm Warning 21, NWS Norman, OK

OKZ004>021-221845-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1100 AM CST THU MAR 21 1991

...SEVERE THUNDRERSTORMS POSSIBLE ACROSS CENTRAL AND PORTIONS OF SOUTHWEST
OKLAHOMA THIS AFTERNOON...

A ABUNDANT FLOW OF MOISTURE COMBINED WITH A DEVELOPING STORM SYSTEM
WILL CREATE THE POTENTIAL FOR THE FIRST SEVERE WEATHER OUTBREAK OF THE
SPRING ACROSS PORTIONS OF OKLAHOMA THIS AFTERNOON.

SEVERE THUNDERSTORM WITH LARGE HAIL...AND POSSIBLY TORNADOES...MAY DEVELOP
THIS AFTERNOON...AS A LOW PRESSURE AREA DEVELOPING OVER KANSAS IS EXPECTED
TO PUSH A DRY LINE ACROSS PORTIONS OF THE STATE THIS AFTERNOON.

PERSONS IN SOUTHWEST AND CENTRAL OKLAHOMA SHOULD LISTEN FOR LATER STATEMENTS
...AND THE OKLAHOMA THUNDERSTORM OUTLOOK TO BE ISSUED AROUND 1245 PM...
FOR FURTHER INFORMATION.

TXZ020-212015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
1212 PM CST THU MAR 21 1991

...THUNDERSTORMS DEVELOPING ACROSS NORTH CENTRAL TEXAS AND SOUTHERN
OKLAHOMA...

AT NOON CST RADAR INDICATED STRONG THUNDERSTORMS WERE DEVELOPING
ACROSS NORTHERN KNOX...SOUTHERN FOARD  AND WILBARGER COUNTIES OF NORTH
CENTRAL TEXAS. THE STRONGEST THUNDERSTORM WAS IN NORTHWESTERN KNOX
COUNTY ENTERING SOUTHERN FOARD COUNTY. MOVEMENT WAS NORTHEAST AT 30
MPH.

IN OKLAHOMA STRONG THUNDERSTORMS HAD DEVELOPED ACROSS JEFFERSON AND
SOUTHERN STEPHENS COUNTY AND A SEVERE THUNDERSTORM WARNING WAS ISSUED
FOR JEFFERSON COUNTY.

AS THE AFTERNOON PROGRESSES THUNDERSTORMS...A FEW POSSIBLY SEVERE WILL
DEVELOP ACROSS THIS PORTION OF NORTH CENTRAL TEXAS AND SOUTHERN
OKLAHOMS ALONG AND IN ADVANCE OF A DRYLINE MOVING SLOWLY TO THE EAST.
STRONG WINDS..BRIEF BUT HEAVY RAIN AND DEADLY LIGHTNING WILL ACCOMPANY
THE HEAVIER THUNDERSTORMS.

TXZ020-019-212045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
1245 PM CST THU MAR 21 1991

...TORNADO WATCH FOR PORTIONS OF NORTH CENTRAL TEXAS AND SOUTHERN
OKLAHOMA UNTIL 6PM CST...

A TORNADO WATCH IS IN EFFECT UNTIL 6PM CST FOR
ARCHER..BAYLOR..CLAY..FOARD..HARDEMAN..JACK..KNOX..MONTAGUE..WICHITA
..WILBARGER AND YOUNG COUNTIES OF NORTH CENTRAL TEXAS AND INCLUDES
COTTON COUNTY OF SOUTHERN OKLAHOMA.

AT 1240 PM CST RADAR INDICATED THUNDERSTORMS WERE DEVELOPING ALONG
A LINE FROM ABILENE TEXAS TO VERNON NORTHEASTWARD TO EAST OF
OKLAHOMA CITY. MOVEMENT WAS NORTHEAST AT 35 MPH.

THUNDERSTORMS WILL CONTINUE TO DEVELOP THIS AFTERNOON AND EVENING
ACROSS THIS PORTION OF NORTH CENTRAL TEXAS AND INTENSITY ...POSSIBLY
PRODUCING TORNADOES.

STAY ALERT FOR CHANGING WEATHER CONDITIONS AND BE PREPARED TO TAKE
COVER IMMEDIATELY IF A WARNING IS ISSUED OR THREATENING WEATHER IS
SIGHTED.

OKZ004>021-221200-

OKLAHOMA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
110 PM CST THU MAR 21 1991

THIS THUNDERSTORM OUTLOOK IS VALID ONLY FOR OKLAHOMA ZONES 4 THROUGH
21. A THUNDERSTORM OUTLOOK FOR THE OKLAHOMA AND TEXAS PANHANDLES IS
AVAILABLE UNDER LBBSPSAMA...AND A THUNDERSTORM OUTLOOK FOR EASTERN
OKLAHOMA IS AVAILABLE UNDER OKCSPSTUL.

TORNADO WATCH NUMBER 39 IS IN EFFECT UNTIL 6 PM FOR SOUTHWEST THROUGH CENTRAL
OKLAHOMA...AND TORNADO WATCH 40 IS IN EFFECT UNTIL 7 PM FOR EASTERN OKLAHOMA.
THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON INTO EARLY
EVENING. THE GREATEST THREAT IS TO THE RIGHT OF A ALTUS-PONCA CITY LINE
THUNDERSTORMS WITH LARGE HAIL...AND TORNADOES ARE THE GREATEST THREAT FROM THIS
SYSTEM.
THIS AFTERNOON A STRONG LOW PRESSURE AREA WAS DEVELOPING IN WESTERN KANSAS.
A DRY LINE WAS DEVELOPING FROM WEST OF ALTUS TO JUST WEST OF PONCA CITY. SOME
STORMS HAVE ALREADY BEEN FIRING IN SEVERAL LINES ACROSS SOUTH CENTRAL OKLAHOMA
BETWEEN HUGHES AND TILLLMAN COUNTIES. STORMS ARE EXPECTED TO BEGIN MOVING INTO
OR DEVELOPING INTO THE CENTRAL PORTIONS OF THE STATE BETWEEN THE NEXT
1 TO 2 HOURS. AS THE DRYLINE ADVANCES EAST THESE STORMS ARE EXPECTED TO MOVE
RAPIDLY NORTHEAST AND POSSIBLY AFFECT NORTH CENTRAL OKLAHOMA BY MID AFTERNOON.

LOOKING AHEAD...THE DRYLINE PASSAGE WILL END THE THREAT OF SEVERE THUNDERSTORMS
FOR MID EVENING INTO TOMORROW MORNING.

WE RECOMMEND SPOTTER GROUPS ACROSS SOUTHWESTERN AND CENTRAL OKLAHOMA
BE ACTIVATED NOW .