Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 286, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jun 9, 1998, 1:09 AM CDT for Sequoyah County, Oklahoma. It was in force for 51 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 9, 1998, 1:09 AM CDT (06:09 UTC)
- Expired
- Jun 9, 1998, 2:00 AM CDT
- In force
- 51 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 42 km from the middle of the area, began a volume at 06:11 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 9, 1:30 AM CDT | Thunderstorm Wind | Marble City, OK | Numerous trees were blown down |
| Jun 9, 2:10 AM CDT | Hail 0.75 | Roland, OK |
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.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 6.2 hours before the alert went out and 178 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 554 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 525 m²/s²
- 0-3 km storm-relative helicity
- 624 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.4
The text
As transmitted, in the capitals the NWS used until 2016.
714 WUUS54 KTSA 090609 RRA SVRTUL OKC135-090700- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 109 AM CDT TUE JUN 9 1998 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA * UNTIL 200 AM CDT * AT 108 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM 6 MILES NORTH OF GORE...MOVING EAST AT 30 MPH. * SOME LOCATIONS AFFECTED INCLUDE... TENKILLER STATE PARK MARBLE CITY HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. TORRENTIAL RAINS MAY CAUSE PONDING OF WATER ON ROADWAYS. DONT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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 8, 9:00 PM CDT, 4 hours 9 minutes earlier.
Area forecast discussion, Jun 8, 9:00 PM CDT, 4 hours 9 minutes before
FPUS3 KTUL 090156 AFDTUL EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 900 PM CDT MON JUN 8 1998 JUST SENT ANOTHER QUICK UPDATE TO COVER NEW TORNADO WATCH. CONT TO WATCH TORNADIC SUPERCELL MOVG ACRS PITTBURG...MCINTOSH AND HASKELL COUNTIES...AS WELL AS OTHER TSTMS N OF OKC AND OVER SC KS. SOUTHERN SUPERCELL IN AXIS OF BEST INSTABILITY WITH LAPS CAPES AOA 3000 J/KG. STORMS SHUD CONT NEXT FEW HOURS. WL ISSUE AT LEAST ONE MORE UPDATED ZFP/RDF PACKAGE BEFORE MIDNIGHT. SMITH .TUL... OK...TORNADO WATCH NUMBER 531 MOST OF SE OK. AR...NONE.
In the hours before
Local storm report, Jun 8, 8:42 PM CDT, 4 hours 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
842 PM CDT MON JUN 08 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0805 PM HANNA OK .75 INCH HAIL
06/08/98 MCINTOSHLocal storm report, Jun 8, 9:00 PM CDT, 4 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
900 PM CDT MON JUN 08 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0856 PM 4 S INDIANOLA OK TORNADO
06/08/98 PITTSBURG REPORTED BY CIVIL DEFENSE
SPOTTERSLocal storm report, Jun 8, 10:00 PM CDT, 3 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1000 PM CDT MON JUN 08 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0950 PM RUSSELLVILLE OK TORNADO
06/08/98 PITTSBURG REPORTED BY PITTSBURG
COUNTY EOCThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 7:39 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 51 min |
| Jun 8, 7:59 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Pittsburg | 61 min |
| Jun 8, 8:09 PM CDT | Tornado Warning | TSA | Pittsburg | 51 min |
| Jun 8, 8:21 PM CDT | Tornado Warning | TSA | McIntosh | 39 min |
| Jun 8, 8:50 PM CDT | Tornado Warning | TSA | Haskell, McIntosh, Pittsburg | 70 min |
| Jun 8, 9:25 PM CDT | Tornado Warning | TSA | Latimer | 50 min |
| Jun 8, 9:29 PM CDT | Flash Flood Warning | TSA | Haskell, Pittsburg | 3 hr |
| Jun 8, 9:55 PM CDT | Tornado Warning | TSA | Haskell, Latimer, LeFlore | 65 min |
| Jun 8, 10:16 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 44 min |
| Jun 8, 10:29 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 46 min |
| Jun 8, 10:42 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 48 min |
| Jun 8, 10:44 PM CDT | Tornado Warning | TSA | LeFlore | 46 min |
| Jun 8, 11:13 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 47 min |
| Jun 8, 11:33 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 42 min |
| Jun 8, 11:56 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Muskogee | 49 min |
| Jun 9, 12:24 AM CDT | Severe Thunderstorm Warning | TSA | Adair | 51 min |
| Jun 9, 12:38 AM CDT | Flash Flood Warning | TSA | Muskogee | 2 hr |
| Jun 9, 12:41 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Muskogee | 49 min |
| Jun 9, 12:55 AM CDT | Flash Flood Warning | TSA | Adair, Cherokee | 3 hr |
| Jun 9, 1:12 AM CDT | Severe Thunderstorm Warning | TSA | Adair | 48 min |
| Jun 9, 1:26 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 34 min |
| Jun 9, 1:43 AM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 47 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1998Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.