Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 372, NWS Tulsa, OK

June 30, 1998Craig County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 30, 1998, 6:53 AM CDT for Craig County, Oklahoma. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 30, 1998, 6:53 AM CDT (11:53 UTC)
Expired: Jun 30, 1998, 7:30 AM CDT
In force: 37 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Craig County, OK

The radar

The Tulsa radar (KINX), 73 km from the middle of the area, began a volume at 11:53 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 11.9 hours before the alert went out and 126 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1641 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 1639 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 4.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KTUL 301153 RRA
SVRTUL
OKC035-301230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
653 AM CDT TUE JUN 30 1998

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  CRAIG COUNTY IN NORTHEASTERN OKLAHOMA

* UNTIL 730 AM CDT

* AT 650 AM...NATIONAL WEATHER SERVICE RADAR DETECTED A SEVERE
  THUNDERSTORM 12 MILES NORTHWEST OF WELCH...MOVING SOUTH-
  SOUTHEAST AT 30 MPH.

r* SOME LOCATIONS AFFECTED INCLUDE...
  WELCH

  HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED
  IN THE WARNED AREA.

BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 30, 4:00 AM CDT, 2 hours 53 minutes earlier.

Area forecast discussion, Jun 30, 4:00 AM CDT, 2 hours 53 minutes before

FPUS3 KTUL 300906
AFDTUL

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
400 AM CDT TUE JUN 30 1998

PROBLEM(S) OF THE DAY:
WILL THERE BE SEVERE CONVECTION?

SE KS CONVECTION IS FLIRTING WITH FAR NE SECTIONS OF CWA...AND HAS
PUSHED OUT AN OUTFLOW BNDRY ACRS NE OK TNGT.  OUTFLOW WILL PROBABLY
WASH OUT TDA...ALTHO SFC BNDRY CURRENTLY STRETCHING FM NRN MO INTO
SRN KS IS PROGD TO SAG SLOWLY S INTO NE OK/NW AR THIS AFTN.  WITH
CURRENT CONVECTION AND PSBLTY OF REDEVELOPMENT LTR THIS AFTN...WL
CARRY LO POPS FOR NRN PARTS OF FA.

COMBINATION OF UPSLOPE FLOW AND SFC CONVERGENCE SHUD ALLOW TSRA TO
FIRE ACRS ERN CO/WRN KS BY LATE AFTN.  THIS ACTIVITY SHUD EVENTUALLY
FORM INTO A MCS...AND MV ESE ALG H85-H3 THICKNESS INTO NE OK AND NW
AR THIS EVENING AND OVRNGT.  CUD SEE SOME SVR WX IN FORM OF DAMAGING
WINDS...BUT NO PLANS TO MENTION SVR IN FCST FOR NOW.

FOR WED...SFC BNDRY SHUD LIE NW TO SE ACRS FA.  MDLS SHOW DECENT
INSTABILITY/MSTR POOLED ALG FNT ALONG WITH A WELL DEFINED VORT MAX
MVG INTO SE KS/NE OK...SO WL CONTINUE WITH LOW POPS.

SFC FNT SHUD EVENTUALLY LIFT N WED NGT.  AVN HINTS AT ANOTHER PSBL
MCS ACRS KS...WITH ACTIVITY MVG INTO FAR NE OK LATE.  DONT HAVE MUCH
CONFIDENCE AT THIS TIME FRAME...SO WL GO WITH LOW CHC POPS...MAINLY
OVR NRN SECTIONS.

FCSTID = 18
TUL   96  74  93  76 /  20  30  30  20
FSM   96  75  94  74 /  10  20  30  20
MLC   96  75  95  76 /  10  10  20  20
BVO   96  72  92  74 /  20  40  30  30
FYV   91  69  89  69 /  20  30  30  30
IDB   97  72  95  73 /  10  10  10  10
BYV   91  69  89  69 /  20  30  30  30
MIO   94  71  91  71 /  20  40  30  30
MKO   96  75  94  76 /  10  20  20  20
F10   96  75  94  76 /  10  20  20  20
HHW   97  72  95  73 /  10  10  10  10

.TUL...
OK...NONE.

AR...NONE.

--------------------
EXPERIMENTAL OUTPUT:

GENERAL WEATHER EXPECTED NEXT 24 HOURS: CONVECTIVE PRECIP
HAZARDOUS WEATHER EXPECTED NEXT 24 HOURS: SLIGHT CHANCE SEVERE
THUNDERSTORMS
NGM CONFIDENCE:  6 ON A SCALE OF 0 TO 10
ETA CONFIDENCE:  7 ON A SCALE OF 0 TO 10
AVN CONFIDENCE:  7 ON A SCALE OF 0 TO 10
FCST CONFIDENCE: 7 ON A SCALE OF 0 TO 10

In the hours before

Special weather statement, Jun 30, 4:30 AM CDT, 2 hours 23 minutes before

OKZ060-300908-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
430 AM CDT TUE JUN 30 1998

THE HEAT ADVISORY HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES

EASTERN OKLAHOMA...
         TULSA.

A WEAK COLD FRONT IS EXPECTED TO MOVE INTO NORTHEAST OKLAHOMA
BY THIS AFTERNOON...PROVIDING SOME SLIGHT RELIEF TO THE
OPPRESSIVE HEAT OF THE PAST FEW DAYS.  HEAT INDICES SHOULD STILL
BE AROUND 100 DEGREES THIS AFTERNOON...BUT THIS IS BELOW THE
HEAT ADVISORY CRITERIA.

Local storm report, Jun 30, 6:00 AM CDT, 53 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
600 AM CDT TUE JUN 30 1998

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

0445 AM    SULPHUR SPRINGS           AR   WIND DAMAGE
06/30/98   BENTON                         TREES BLOWN DOWN

Local storm report, Jun 30, 6:00 AM CDT, 53 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
600 AM CDT TUE JUN 30 1998

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

0445 AM    SULPHUR SPRINGS           AR   WIND DAMAGE
06/30/98   BENTON                         TREES BLOWN DOWN

Special weather statement, Jun 30, 6:00 AM CDT, 53 minutes before

ARZ001-002-010-011-019-020-029-OKZ049-053>076-011200-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
600 AM CDT TUE JUN 30 1998

A FEW SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS NORTHEAST OKLAHOMA AND
NORTHWEST ARKANSAS THIS EVENING INTO TONIGHT.

A SLOW MOVING COLD FRONT ACROSS SOUTHERN KANSAS WILL SAG SOUTHWARD
DURING THE DAY TODAY INTO NORTHERN OKLAHOMA.  SOUTH WINDS AHEAD OF THE
FRONT WILL CONTINOUDY THIS MORNING. A 30 PERCENT CHANCE OF
THUNDERSTORMS. HIGH IN THE UPPER 90S. NORTHEAST WIND 10 TO 15 MPH.
.TONIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF THUNDERSTORMS.
LOW IN THE LOWER 70S. SOUTHEAST WIND AROUND 10 MPH.
.WEDNESDAY...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF THUNDERSTORMS.
HIGH IN THE MID 90S. SOUTHEAST WIND 15 TO 20 MPH.
.WEDNESDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
THUNDERSTORMS. LOW IN THE LOWER 70S.

.EXTENDED FORECAST...
.THURSDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF THUNDERSTORMS. HIGH
IN THE LOWER 90S.
.FRIDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOW IN THE LOWER 70S AND HIGH IN THE MID 90S.
.FOURTH OF JULY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOW IN THE LOWER 70S AND HIGH IN THE LOWER 90S.

OKZ006>008-011>013-302130-
ALFALFA OK-GARFIELD OK-GRANT OK-KAY OK-MAJOR OK-NOBLE OK-
600 AM CDT TUE JUN 30 1998

.TODAY...BECOMING MOSTLY CLOUDY THIS MORNING. A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. HIGH IN THE MID 90S. EAST TO NORTHEAST
WIND 10 TO 15 MPH.
.TONIGHT...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF THUNDERSTORMS.
LOW IN THE MID 70S. EAST WIND AROUND 10 MPH.
.WEDNESDAY...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF THUNDERSTORMS.
HIGH IN THE MID 90S. EAST WIND AROUND 15 MPH.
.WEDNESDAY NIGHT...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF
THUNDERSTORMS. LOW IN THE MID 70S.

.EXTENDED FORECAST...
.THURSDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF THUNDERSTORMS. HIGH
IN THE MID 90S.
.FRIDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOW IN THE MID 70S AND HIGH IN THE MID 90S.
.FOURTH OF JULY...MOSTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS. LOW
IN THE MID 70S AND HIGH INUE TO TRANSPORT WARM MOIST AIR INTO THE REGION DURING
THE DAY TODAY.  AS THE MOISTURE INCREASES...THE FRONT WILL BECOME THE
FOCUS FOR THUNDERSTORM DEVELOPMENT THIS EVENING INTO TONIGHT.

COOLER AIR ALOFT WILL MOVE SOUTHWARD AND DECREASE THE STRENG THE LOWER 90S.

Special weather statement, Jun 30, 6:00 AM CDT, 53 minutes before

ARZ001-002-010-011-019-020-029-OKZ049-053>076-011200-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
600 AM CDT TUE JUN 30 1998

A FEW SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS NORTHEAST OKLAHOMA AND
NORTHWEST ARKANSAS THIS EVENING INTO TONIGHT.

A SLOW MOVING COLD FRONT ACROSS SOUTHERN KANSAS WILL SAG SOUTHWARD
DURING THE DAY TODAY INTO NORTHERN OKLAHOMA.  SOUTH WINDS AHEAD OF THE
FRONT WILL CONTINOUDY THIS MORNING. A 30 PERCENT CHANCE OF
THUNDERSTORMS. HIGH IN THE UPPER 90S. NORTHEAST WIND 10 TO 15 MPH.
.TONIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF THUNDERSTORMS.
LOW IN THE LOWER 70S. SOUTHEAST WIND AROUND 10 MPH.
.WEDNESDAY...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF THUNDERSTORMS.
HIGH IN THE MID 90S. SOUTHEAST WIND 15 TO 20 MPH.
.WEDNESDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
THUNDERSTORMS. LOW IN THE LOWER 70S.

.EXTENDED FORECAST...
.THURSDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF THUNDERSTORMS. HIGH
IN THE LOWER 90S.
.FRIDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOW IN THE LOWER 70S AND HIGH IN THE MID 90S.
.FOURTH OF JULY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOW IN THE LOWER 70S AND HIGH IN THE LOWER 90S.

OKZ006>008-011>013-302130-
ALFALFA OK-GARFIELD OK-GRANT OK-KAY OK-MAJOR OK-NOBLE OK-
600 AM CDT TUE JUN 30 1998

.TODAY...BECOMING MOSTLY CLOUDY THIS MORNING. A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. HIGH IN THE MID 90S. EAST TO NORTHEAST
WIND 10 TO 15 MPH.
.TONIGHT...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF THUNDERSTORMS.
LOW IN THE MID 70S. EAST WIND AROUND 10 MPH.
.WEDNESDAY...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF THUNDERSTORMS.
HIGH IN THE MID 90S. EAST WIND AROUND 15 MPH.
.WEDNESDAY NIGHT...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF
THUNDERSTORMS. LOW IN THE MID 70S.

.EXTENDED FORECAST...
.THURSDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF THUNDERSTORMS. HIGH
IN THE MID 90S.
.FRIDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOW IN THE MID 70S AND HIGH IN THE MID 90S.
.FOURTH OF JULY...MOSTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS. LOW
IN THE MID 70S AND HIGH INUE TO TRANSPORT WARM MOIST AIR INTO THE REGION DURING
THE DAY TODAY.  AS THE MOISTURE INCREASES...THE FRONT WILL BECOME THE
FOCUS FOR THUNDERSTORM DEVELOPMENT THIS EVENING INTO TONIGHT.

COOLER AIR ALOFT WILL MOVE SOUTHWARD AND DECREASE THE STRENG THE LOWER 90S.

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 30, 6:31 AM CDT	Severe Thunderstorm Warning	TSA	Delaware	59 min
Jun 30, 8:47 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Sequoyah	58 min
Jun 30, 12:13 PM CDT	Severe Thunderstorm Warning	TSA	Tulsa	62 min
Jun 30, 12:17 PM CDT	Flash Flood Warning	TSA	Rogers, Tulsa	2 hr
Jun 30, 12:59 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee	61 min

Nearby

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

Sources

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