Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 334, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jun 18, 1998, 9:08 PM CDT for Sequoyah County, Oklahoma. It was in force for 37 min. 1 report 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 18, 1998, 9:08 PM CDT (02:08 UTC)
- Expired
- Jun 18, 1998, 9:45 PM CDT
- In force
- 37 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Sequoyah County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 18, 9:45 PM CDT | Thunderstorm Wind | Moffett, OK | Large trees were blown down in Moffett |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 18, 4:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 2.1 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
- 3542 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1049 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 2.1
- Supercell composite
- 12.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 190208 RRA SVRTUL OKC135-190245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 908 PM CDT THU JUN 18 1998 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA * UNTIL 945 PM CDT * AT 906 PM...NATIONAL WEATHER SERVICE RADAR DETECTED A LINE OF SEVERE THUNDERSTORMS FROM SHORT TO SALLISAW...MOVING EAST-SOUTHEAST AT 25 MPH. * SOME LOCATIONS AFFECTED INCLUDE... GANS MULDROW ROLAND HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH. B
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 18, 8:00 PM CDT, 1 hour 8 minutes earlier.
Area forecast discussion, Jun 18, 8:00 PM CDT, 1 hour 8 minutes before
FPUS3 KTUL 190057 AFDTUL EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 800 PM CDT THU JUN 18 1998 WILL UPDATE ZONES SHORTLY TO ADJUST 1ST PERIOD POPS FOR CURRENT TRENDS. COLD FRONT/DRYLINE NOW STARTING TO RETREAT SLIGHTLY BACK TO THE WEST SO WILL ALSO ADJUST WINDS AND MIN TEMPS TONIGHT FOR THESE TRENDS. ALSO ADDED SOME CLOUDS WHERE POPS ARE MENTIONED FRIDAY NIGHT. HAVE NOT LOOKED AT MUCH ELSE SO WILL SAVE ANY OTHER CHANGES UNTIL LATER. .TUL... OK...NONE. AR...NONE. PLATE
In the hours before
Local storm report, Jun 18, 5:33 PM CDT, 3 hours 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
533 PM CDT THU JUN 18 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0955 PM 5 N CLAYTON OK 1 INCH HAIL
06/18/98 PUSHMATAHA
1030 PM 1 W WHITESBORO OK WIND DAMAGE
06/18/98 LE FLORE TREE LIMB DOWN ACROSS ROAD
AND TREES KNOCKED DOWN
JUST WEST OF WHITESBORO.Local storm report, Jun 18, 5:43 PM CDT, 3 hours 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
543 PM CDT THU JUN 18 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0955 PM STIGLER OK 1.75 INCH HAIL
06/18/98 HASKELL
0955 PM STIGLER OK 60 MPH TSTM GUST
06/18/98 HASKELL LARGE TREE LIMBS KNOCKED
DOWN.The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 7:11 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 64 min |
| Jun 18, 7:15 PM CDT | Tornado Warning | TSA | Muskogee, Wagoner | 30 min |
| Jun 18, 7:23 PM CDT | Severe Thunderstorm Warning | TSA | Ottawa | 37 min |
| Jun 18, 7:33 PM CDT | Tornado Warning | TSA | Cherokee | 42 min |
| Jun 18, 7:36 PM CDT | Tornado Warning | TSA | McIntosh, Okmulgee | 39 min |
| Jun 18, 7:44 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 61 min |
| Jun 18, 7:49 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 56 min |
| Jun 18, 7:54 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 51 min |
| Jun 18, 8:14 PM CDT | Tornado Warning | TSA | McIntosh | 46 min |
| Jun 18, 8:19 PM CDT | Severe Thunderstorm Warning | TSA | Latimer | 56 min |
| Jun 18, 8:40 PM CDT | Tornado Warning | TSA | Haskell, Pittsburg | 50 min |
| Jun 18, 8:53 PM CDT | Tornado Warning | TSA | Latimer | 37 min |
| Jun 18, 9:05 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, Pittsburg | 55 min |
| Jun 18, 9:12 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore, Pushmataha | 63 min |
| Jun 18, 9:31 PM CDT | Tornado Warning | TSA | Latimer | 44 min |
| Jun 18, 9:34 PM CDT | Flash Flood Warning | TSA | Latimer | 2 hr |
| Jun 18, 9:42 PM CDT | Tornado Warning | TSA | Sequoyah | 48 min |
| Jun 18, 10:07 PM CDT | Tornado Warning | TSA | LeFlore | 38 min |
| Jun 18, 10:14 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 61 min |
| Jun 18, 10:20 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 40 min |
| Jun 18, 10:22 PM CDT | Severe Thunderstorm Warning | TSA | Latimer | 38 min |
| Jun 18, 10:25 PM CDT | Tornado Warning | TSA | Pittsburg | 50 min |
| Jun 18, 10:56 PM CDT | Tornado Warning | TSA | Latimer | 49 min |
| Jun 18, 11:17 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 43 min |
| Jun 18, 11:23 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 37 min |
| Jun 18, 11:24 PM CDT | Tornado Warning | TSA | Pushmataha | 51 min |
| Jun 18, 11:26 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 49 min |
| Jun 18, 11:41 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 64 min |
| Jun 18, 11:50 PM CDT | Flash Flood Warning | TSA | Latimer | 100 min |
| Jun 18, 11:55 PM CDT | Severe Thunderstorm Warning | TSA | Latimer | 35 min |
| Jun 19, 12:07 AM CDT | Severe Thunderstorm Warning | TSA | Haskell | 53 min |
| Jun 19, 12:44 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 46 min |
| Jun 19, 1:06 AM CDT | Severe Thunderstorm Warning | TSA | Haskell | 54 min |
| Jun 19, 1:29 AM CDT | Severe Thunderstorm Warning | TSA | Latimer, Pittsburg | 61 min |
| Jun 19, 1:59 AM CDT | Severe Thunderstorm Warning | TSA | Haskell | 31 min |
| Jun 19, 2:11 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 64 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.