Tornado Warning 36, NWS Norman, OK

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
330 PM CDT MON JUN 8 1998

RAPIDLY DEVELOPING STORMS IN WESTERN ZONES ARE EXPECTED TO CONTINUE
TO DEVELOP THROUGH THE EVENING...AND SPREAD TO THE EAST.  STORMS
SHOULD DECREASE LATE THIS EVENING...BUT EXPECT MANY TO SURVIVE WELL
PAST MIDNIGHT.

UPPER LEVEL RIDGE OVER THE GULF OF MEXICO INTO THE CENTRAL U.S. IS
FORECAST TO AMPLIFY SOMEWHAT OVER THE NEXT FEW DAYS.  THAT WILL LEAD
TO A GRADUAL DECREASE IN THE CHANCE OF THUNDERSTORMS.  HOWEVER...THE
CONTINUING ABUNDANCE OF LOW LEVEL MOISTURE WILL HELP TO MAINTAIN AT
LEAST A SLIGHT CHANCE THROUGHOUT MOST OF THE FORECAST PERIODS.

A COLD FRONT ACROSS THE OKLAHOMA PANHANDLE SHOULD MAKE IT A FEW
COUNTIES DEEP INTO OUR FORECAST AREA TONIGHT.  IT APPEARS THAT IT
WILL DRIFT BACK NORTH INTO KANSAS...AS A WARM FRONT...BY TOMORROW
AFTERNOON.

NO MAJOR CHANGES ARE FORECAST FOR THE PERIOD THURSDAY THROUGH
SATURDAY.

FCSTID = 23 = CMS

OKC   70  87  71  90 /  60  30  20  20
HBR   68  91  69  93 /  30  30  20  20
SPS   70  92  70  93 /  30  20  20  20
GAG   60  90  66  92 /  20  30  30  20
PNC   68  86  70  92 /  70  30  30  20
DUA   71  88  72  89 /  20  10  20  10

.OKC...
OK...CAUTION ON AREA LAKES THIS EVENING...ZNS 4>31..33>41..44>46.
TX...CAUTION ON AREA LAKES THIS EVENING...ZNS 83>90.

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1032 AM CDT MON JUN  8 1998

TIME (CDT) .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0700 AM    COX CITY                  OK   1.00 INCH HAIL
06/08/98   GRADY

0715 AM    PURCELL                   OK   WIND DAMAGE
06/08/98   MCCLAIN                        LARGE TREES AND POWER LINES
                                          DOWN IN TOWN

SC

OKZ004>048-050>052-TXZ083>090-091200-

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1230 PM CDT MON JUN 8 1998

THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING OVER WESTERN AND NORTHERN OKLAHOMA AND PARTS OF WESTERN
NORTH TEXAS... WEST AND NORTH OF A LINE FROM STILLWATER TO HINTON TO
SEYMOUR. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH
TONIGHT SOUTHEAST OF THIS AREA AND NORTHWEST OF A LINE FROM COALGATE
TO MARIETTA. LARGE HAIL AND DAMAGING WINDS WILL BE THE MAIN
THREAT... WITH TORNADOES ALSO POSSIBLE ESPECIALLY IN THE MODERATE
RISK AREA.

DISCUSSION...A DRY LINE IS MOVING EASTWARD THROUGH THE EASTERN TEXAS
PANHANDLE AT MIDDAY AND WILL MOVE INTO WESTERN OKLAHOMA BY
MIDAFTERNOON. CLEARING AHEAD OF THE DRY LINE WILL RESULT IN FASTER
HEATING AND MORE RAPID DESTABILIZATION THIS AFTERNOON OVER THE
MODERATE RISK AREA. THUNDERSTORMS ARE EXPECTED TO DEVELOP BY LATE
AFTERNOON ALONG AND POSSIBLY AHEAD OF THE DRY LINE OVER NORTHWEST
OKLAHOMA... WITH ADDITIONAL STORMS DEVELOPING SOUTHWARD INTO EXTREME
SOUTHWEST OKLAHOMA AND WESTERN NORTH TEXAS BY EARLY EVENING. WIND
PROFILES ALOFT ARE FAVORABLE FOR SUPERCELL THUNDERSTORMS THAT MAY
PRODUCE VERY LARGE HAIL... DAMAGING STRAIGHT LINE WINDS... AND
POSSIBLY TORNADOES. STORMS ARE EXPECTED TO SPREAD TOWARD NORTH
CENTRAL OKLAHOMA DURING THE EARLY EVENING WITH A CONTINUED THREAT OF
SUPERCELLS AND POSSIBLY TORNADOES.

STORMS LIKELY WILL SPREAD EAST INTO CENTRAL AND SOUTHERN OKLAHOMA
AND THE REST OF WESTERN NORTH TEXAS BY MID TO LATE EVENING. THERE
WILL BE A CONTINUED THREAT OF LARGE HAIL AND DAMAGING WINDS IN THESE
AREAS... BUT TORNADO POTENTIAL APPEARS GREATEST FARTHER WEST AND
NORTH IN THE MODERATE RISK AREA.

IN FAR WESTERN OKLAHOMA SOUTHWARD INTO WESTERN NORTH TEXAS... THE
SEVERE THREAT WILL DIMINISH ONCE THE DRY LINE PASSES. WINDS WILL
SHIFT TO THE WEST OR SOUTHWEST AND HUMIDITY WILL DROP RAPIDLY WITH
THE PASSAGE OF THE DRY LINE... ALONG WITH CLEARING SKIES AND
POSSIBLY BLOWING DUST.

EMERGENCY MANAGERS IN THE MODERATE RISK AREA ARE ENCOURAGED TO STAY
IN CLOSE TOUCH WITH THE LATEST WEATHER INFORMATION TROUGH THE
AFTERNOON. SEVERE WEATbHER WATCHES MAY BE ISSUED AS EARLY AS MID
AFTERNOON. IN CENTRAL AND SOUTH CENTRAL OKLAHOMA... THE SEVERE
THREAT IS MORE LIKELY TO WAIT UNTIL THIS EVENING.

24

OKZ004>048-050>052-TXZ083>090-091200-

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1230 PM CDT MON JUN 8 1998

THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING OVER WESTERN AND NORTHERN OKLAHOMA AND PARTS OF WESTERN
NORTH TEXAS... WEST AND NORTH OF A LINE FROM STILLWATER TO HINTON TO
SEYMOUR. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH
TONIGHT SOUTHEAST OF THIS AREA AND NORTHWEST OF A LINE FROM COALGATE
TO MARIETTA. LARGE HAIL AND DAMAGING WINDS WILL BE THE MAIN
THREAT... WITH TORNADOES ALSO POSSIBLE ESPECIALLY IN THE MODERATE
RISK AREA.

DISCUSSION...A DRY LINE IS MOVING EASTWARD THROUGH THE EASTERN TEXAS
PANHANDLE AT MIDDAY AND WILL MOVE INTO WESTERN OKLAHOMA BY
MIDAFTERNOON. CLEARING AHEAD OF THE DRY LINE WILL RESULT IN FASTER
HEATING AND MORE RAPID DESTABILIZATION THIS AFTERNOON OVER THE
MODERATE RISK AREA. THUNDERSTORMS ARE EXPECTED TO DEVELOP BY LATE
AFTERNOON ALONG AND POSSIBLY AHEAD OF THE DRY LINE OVER NORTHWEST
OKLAHOMA... WITH ADDITIONAL STORMS DEVELOPING SOUTHWARD INTO EXTREME
SOUTHWEST OKLAHOMA AND WESTERN NORTH TEXAS BY EARLY EVENING. WIND
PROFILES ALOFT ARE FAVORABLE FOR SUPERCELL THUNDERSTORMS THAT MAY
PRODUCE VERY LARGE HAIL... DAMAGING STRAIGHT LINE WINDS... AND
POSSIBLY TORNADOES. STORMS ARE EXPECTED TO SPREAD TOWARD NORTH
CENTRAL OKLAHOMA DURING THE EARLY EVENING WITH A CONTINUED THREAT OF
SUPERCELLS AND POSSIBLY TORNADOES.

STORMS LIKELY WILL SPREAD EAST INTO CENTRAL AND SOUTHERN OKLAHOMA
AND THE REST OF WESTERN NORTH TEXAS BY MID TO LATE EVENING. THERE
WILL BE A CONTINUED THREAT OF LARGE HAIL AND DAMAGING WINDS IN THESE
AREAS... BUT TORNADO POTENTIAL APPEARS GREATEST FARTHER WEST AND
NORTH IN THE MODERATE RISK AREA.

IN FAR WESTERN OKLAHOMA SOUTHWARD INTO WESTERN NORTH TEXAS... THE
SEVERE THREAT WILL DIMINISH ONCE THE DRY LINE PASSES. WINDS WILL
SHIFT TO THE WEST OR SOUTHWEST AND HUMIDITY WILL DROP RAPIDLY WITH
THE PASSAGE OF THE DRY LINE... ALONG WITH CLEARING SKIES AND
POSSIBLY BLOWING DUST.

EMERGENCY MANAGERS IN THE MODERATE RISK AREA ARE ENCOURAGED TO STAY
IN CLOSE TOUCH WITH THE LATEST WEATHER INFORMATION TROUGH THE
AFTERNOON. SEVERE WEATbHER WATCHES MAY BE ISSUED AS EARLY AS MID
AFTERNOON. IN CENTRAL AND SOUTH CENTRAL OKLAHOMA... THE SEVERE
THREAT IS MORE LIKELY TO WAIT UNTIL THIS EVENING.

24

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
312 PM CDT MON JUN  8 1998

TIME (CDT) .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0300 PM    3 N CORDELL               OK   1.75 INCH HAIL
06/08/98   WASHITA

CW/TL