Severe Thunderstorm Warning 129, NWS Norman, OK

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
400 AM CST SAT APR 1 2000

ALTHOUGH A BIT SLOWER THAN FORECAST... RAIN IS FINALLY SPREADING
INTO PORTIONS OF CENTRAL AND NORTHERN OKLAHOMA EARLY THIS MORNING.
RELATIVELY DRY AIR FEEDING INTO THE AREA A LOWER LEVELS HAS BEEN
CONTRIBUTING TO THE EVAPORATION OF PRECIP AS IT TRIES TO SPREAD EAST
FROM WESTERN OKLAHOMA. PRECIP SHOULD CONTINUE TO GRADUALLY SPREAD
INTO SOUTH CENTRAL AND EASTERN SECTIONS DURING THE DAY.
INSTABILITIES EXPECTED TO BE ADEQUATE TO SUPPORT WIDELY SCATTERED
THUNDERSTORMS ACROSS THE SOUTHERN HALF OF OKLAHOMA...INTO WESTERN
NORTH TEXAS. MOST OF THE RAIN SHOULD MOVE SOUTHEAST OF THE AREA BY
THIS EVENING AS THE WARM ADVECTION AND MOISTURE FIELDS SHIFT TO THE
EAST. HOWEVER... A COUPLE SHOWERS COULD LINGER IN THE FAR SOUTHEAST
INTO EARLY SUNDAY. A VIGOROUS SHORT WAVE DIGGING INTO THE NORTHERN
PLAINS WILL DRIVE A RELATIVELY STRONG FRONT INTO THE SOUTHERN PLAINS
LATE SUNDAY NIGHT AND MONDAY. WITH COLD ADVECTION OCCURRING ACROSS
THE AREA MONDAY... ANY PRECIP...IF ANY... WILL LIKELY BE LIMITED TO
SOME WIDELY SCATTERED SHOWERS. THUS WILL LOWER POPS FOR MONDAY AND
REMOVE MENTION OF THUNDERSTORMS. LIGHT WINDS AND POTENTIAL FOR GOOD
RADIATIONAL COOLING WILL LIKELY ALLOW TEMPS TO FALL INTO THE 30S BY
TUESDAY MORNING. COULD EVEN SEE SOME SCATTERED LIGHT FROSTS ACROSS
THE NORTHERN HALF OF OKLAHOMA. TEMPS RAPIDLY WARMING BY WEDNESDAY AS
BRISK SOUTHWEST WINDS DEVELOP OVER THE SOUTHERN PLAINS.

FCSTID = 32

OKC   54  43  64  42 /  80  30  10  20
HBR   53  44  65  45 / 100  20  10  10
SPS   56  45  66  48 / 100  30  10  10
GAG   49  34  62  38 /  60  10   0  20
PNC   54  40  63  40 /  80  20   0  20
DUA   60  48  63  50 /  60  60  20  10

.OUN...
OK...NONE.
TX...NONE.

OKZ004>048-050>052-TXZ083>090-011500-

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
630 AM CST SAT APR 1 2000

THE THUNDERSTORM OUTLOOK CALLS FOR NO SEVERE THUNDERSTORMS ACROSS
CENTRAL OR WESTERN OKLAHOMA...OR WESTERN NORTH TEXAS...THROUGH
TONIGHT. ISOLATED THUNDERSTORMS WILL BE POSSIBLE...MAINLY ACROSS
SOUTHERN OKLAHOMA AND WESTERN NORTH TEXAS...BUT CONDITIONS ARE
EXPECTED TO BE UNFAVORABLE FOR SEVERE WEATHER.

DISCUSSION...A COLD FRONT EXTENDING FROM SOUTHEAST KANSAS...ACROSS
CENTRAL OKLAHOMA...INTO SOUTHWEST TEXAS WILL MOVE SLOWLY SOUTHEAST
TODAY AND TONIGHT.  MOIST AIR FLOWING NORTH ABOVE THE FRONT WILL
RESULT IN WIDESPREAD RAIN AND A FEW THUNDERSTORMS THROUGH TONIGHT. A
FEW OF THE STORMS MAY CONTAIN SMALL HAIL...ESPECIALLY NEAR AND SOUTH
OF THE RED RIVER.  HOWEVER...EXTENSIVE CLOUD COVER AND COOL
TEMPERATURES SOUTH AND EAST OF THE FRONT IS EXPECTED TO LIMIT
INSTABILITY AND PREVENT THUNDERSTORMS FROM REACHING SEVERE LIMITS.

DA

OKZ004>048-050>052-TXZ083>090-011600-

THUNDERSTORM OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
815 AM CST SAT APR 1 2000

THE THUNDERSTORM OUTLOOK CALLS FOR A SLIGHT RISK OF SEVERE
THUNDERSTORMS ACROSS PORTIONS OF SOUTHERN OKLAHOMA AND WESTERN NORTH
TEXAS...EAST AND SOUTH OF A LINE FROM SEYMOUR...TO RUSH SPRINGS...
TO COALGATE.

DISCUSSION...A COLD FRONT EXTENDING FROM SOUTHEAST KANSAS...ACROSS
CENTRAL OKLAHOMA...INTO SOUTHWEST TEXAS WILL MOVE SLOWLY SOUTHEAST
TODAY AND TONIGHT.  MOIST AIR FLOWING NORTH IN ADVANCE AND ABOVE THE
FRONT WILL RESULT IN WIDESPREAD RAIN AND A FEW THUNDERSTORMS.
RELATIVELY COLD AIR ALOFT WILL ALLOW ISOLATED STORMS TO PRODUCE
HAIL...POSSIBLY UP TO ONE INCH IN DIAMETER TODAY.

SINCE THE SEVERE THREAT WILL BE ISOLATED...WIDESPREAD SPOTTER
ACTIVATION IS NOT EXPECTED.

DA