Severe Thunderstorm Warning 101, NWS Norman, OK

Issued

Apr 6, 1998, 8:42 PM CDT (01:42 UTC)

Expired

Apr 6, 1998, 9:45 PM CDT

In force

63 min

Issued by

NWS Norman, OK

Area

Whole counties; the outline is the Mesonet’s reconstruction

Counties Carter County, OK, Garvin County, OK, Stephens County, OK

The Norman radar (KTLX), 95 km from the middle of the area, began a volume at 01:41 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

886 
WUUS1 KOKC 070144
SVROKC
OKC019-049-137-070245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
842 PM CDT MON APR 6 1998

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 945 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES

IN SOUTHEAST OKLAHOMA
     CARTER AND GARVIN

IN SOUTHWEST OKLAHOMA
     STEPHENS

INCLUDING THE FOLLOWING LOCATIONS
     PRUITT...CLEMSCOT...ELMORE CITY...FOSTER...PERNELL...HENNEPIN...
     TUSSY...ALPERS...TATUMS...RATLIFF CITY...COUNTYLINE...VELMA...
     POOLEVILLE...ALMA...FOX AND GRAHAM

AT 835 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM IN EASTERN STEPHENS COUNTY ...MOVING WEST AT 25 
MILES PER HOUR. OTHER STRONG THUNDERSTORMS WERE LOCATED IN NORTHERN 
GARVIN COUNTY. 

MOVE TO AN INTERIOR ROOM AWAY FROM WINDOWS AND ELECTRICAL APPLIANCES.
HEAVY RAINS MAY QUICKLY FLOOD ROADWAYS -- DO NOT DRIVE INTO AREAS
WHERE WATER COVERS THE ROADWAY.

HAIL UP TO THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH ARE LIKELY.
VERY HEAVY RAIN AND FREQUENT LIGHTNING WILL ALSO OCCUR. SEEK SHELTER
INDOORS...AWAY FROM WINDOWS...AND AVOID USING ELECTRICAL APPLIANCES.

SEVERE THUNDERSTORMS CAN AND OCCASIONALY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN
A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A
TORNADO IS SPOTTED.

LAT...LON 3449 9735 3423 9746 3449 9773 3477 9743

NWS Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 6, 2:30 PM CDT, 6 hours 12 minutes earlier.

FPUS3 KOKC 061933
AFDOKC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
230 PM CDT MON APR 6 1998

THE UPPER SYSTEM THAT WILL BRING STORMS TO MUCH OF THE AREA THIS EVENING
WAS CENTERED NEAR ELP AT MID-AFTERNOON. THIS SYSTEM AND ASSOCIATED
DRY LINE WILL PUSH THROUGH CENTRAL OK BEFORE MIDNIGHT AND THROUGH
SOUTHEAST ZONES BY DAYBREAK TUESDAY. REFER TO WATCH PRODUCTS AND
SPECIAL WEATHER STATEMENTS FOR DETAILS.

BOTH THE AVN AND ETA DEVELOP A CLOSED MID-LEVEL LOW AFTER THIS SYSTEM
MOVES INTO THE CENTRAL PLAINS. THE STATIONARY UPPER RIDGE ACROSS THE
UPPER OHIO VALLEY AND INTO THE GREAT LAKES WILL HELP KEEP THE LOW
CENTER OVER EASTERN KS OR MO THROUGH WEDNESDAY. THIS WILL MEAN
NORTHWEST WINDS ACROSS MUCH OF OK THROUGH WEDNESDAY. IT COULD ALSO
KEEP EXTREME NORTH CENTRAL OK IN THE CLOUDS MOST OF THE DAY TUESDAY.
THIS IS REFLECTED IN THE ZONES FOR THAT PART OF THE STATE. WINDS
SHOULD DIE DOWN WEDNESDAY AS THE UPPER SYSTEM FINALLY PULLS AWAY.
WEATHER INTO THE EARLY WEEKEND APPEARS DRY WITH TEMPERATURES ABOVE
NORMAL FRIDAY AND SATURDAY. ALTHOUGH NO RAIN IS EXPECTED IN THE
EXTENDED PERIOD, THE LOCATION OF THE JET MAY KEEP CIRRUS CLOUDS
ACROSS MUCH OF THE SOUTHERN AND CENTRAL PLAINS THE END OF THE WEEK.

FCSTID = 9
OKC   48  72  44  70 /  70   0   0   0
HBR   48  74  44  72 /  60   0   0   0
SPS   48  74  44  72 /  60   0   0   0
GAG   43  70  40  66 /  40   0   0  20
PNC   47  67  44  67 /  70   0   0  20
DUA   52  75  47  73 /  80  30   0   0

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

In the hours before

LOCAL STORM REPORT...DELAYED REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
545 PM MON APR 6 1998

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

450 PM     7 N CROWELL               TX    0.88 INCH HAIL.
04/06/98   FOARD

500 PM     13 S QUANAH               TX    0.88 INCH HAIL.
04/06/98

545 PM     VERNON                    TX    1.00 INCH HAIL.
04/06/98   WILBARGER

SC

LOCAL STORM REPORT...DELAYED REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
620 PM MON APR 6 1998

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

616 PM     5 S CACHE                 OK    0.75 INCH HAIL.
04/06/98   COMANCHE

SC

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
0651 PM CDT MON APR  6 1998

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

0630 PM     3 SSW   FREEDOM          OK   61 MPH WIND GUST, MEASURED
04/06/98   WOODWARD                       OKLAHOMA MESONETWORK

Severe Thunderstorm Warnings in Oklahoma, 1998Every severe thunderstorm warning in 1998

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.