Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 437, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Oct 4, 1998, 9:01 PM CDT for Tulsa County, Washington County, Oklahoma. It was in force for 29 min. 2 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Oct 4, 1998, 9:01 PM CDT (02:01 UTC)
- Expired
- Oct 4, 1998, 9:30 PM CDT
- In force
- 29 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Tulsa County, OK, Washington County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 4, 9:15 PM CDT | Thunderstorm Wind | Ochelata, OK | Large tree limbs were blown down in Ochelata |
| Oct 4, 9:20 PM CDT | Thunderstorm Wind 52 | Collinsville, OK | Location: Intersection of OK Hwy 20 and US Hwy 75. |
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 |
|---|---|---|---|
| Oct 4, 7:15 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 2.0 hours before the alert went out and 193 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
- 1746 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 1456 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 293 m²/s²
- 0-3 km storm-relative helicity
- 419 m²/s²
- Significant tornado parameter
- 2.0
- Supercell composite
- 28.9
The text
As transmitted, in the capitals the NWS used until 2016.
608
WUUS54 KTSA 050205
SVRTUL
OKC143-147-050230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
901 PM CDT SUN OCT 4 1998
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR
NORTHERN TULSA COUNTY IN NORTHEAST OKLAHOMA
SOUTHERN WASHINGTON COUNTY IN NORTHEAST OKLAHOMA
* UNTIL 930 PM CDT
* AT 901 PM CDT...RADAR INDICATED SEVERE THUNDERSTORMS ALONG A LINE
EXTENDING FROM 5 MILES NORTHWEST OF SAND SPRINGS TO 5 MILES
NORTHWEST OF SKIATOOK TO 6 MILES NORTHEAST OF OCHELATA...MOVING
EAST AT 65 MILES PER HOUR.
* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...
COLLINSVILLE...SKIATOOK...SPERRY...OWASSO...SAND SPRINGS...TULSA...
OCHELATA...RAMONA AND VERA
A TORNADO WATCH IS ALSO IN EFFECT. TORNADOES CAN DEVELOP SUDDENLY
FROM SEVERE THUNDERSTORMS. BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS.
LAT...LON 3675 9591 3642 9609 3612 9625 3614 9582
3647 9581 3676 9580What 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 Oct 4, 8:15 PM CDT, 46 minutes earlier.
Area forecast discussion, Oct 4, 8:15 PM CDT, 46 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 815 PM CDT SUN OCT 4 1998 ISSUED FLASH FLOOD WATCH FOR NORTHEAST OKLAHOMA OVERNIGHT WITH CELLS TRAINING AND IR SAT PICS INDICATING CONTINUED BACKBUILDING POSSIBLE OVERNIGHT AS UPPER JET PIVOTS INTO SOUTHERN PLAINS. UPPED POPS TO 100% IN WATCH AREA AND ALSO UPPED POPS ELSEWHERE. FRONT IN NW KANSAS IS NOT COMING SOUTHEAST VERY QUICKLY AND MAY MEAN HEAVY RAIN THREAT WILL CONTINUE INTO MONDAY OVER MUCH OF THE AREA. ENTIRE FORECAST AREA UNDER TORNADO WATCH UNTIL 1AM BUT AM NOT SURE FAR SOUTHEAST ZONES WILL SEE PRECIP UNTIL MONDAY MORNING...SO LEFT CHANCE POPS NEAR RED RIVER OVERNIGHT. NO OTR CHANGES. ZONES AND FFA HAVE BEEN ISSUED. FCSTID = 13 .TUL... OK...FLASH FLOOD WATCH FOR TONIGHT FOR ZONES OKZ054>067. AR...NONE.
In the hours before
Special weather statement, Oct 4, 8:36 PM CDT, 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 836 PM CDT SUN OCT 4 1998 ...TORNADO WATCH NUMBER 864 HAS BEEN EXPANDED TO INCLUDE PAWNEE COUNTY AND NOW INCLUDES ALL OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS UNTIL 1AM... SOME CITIES INCLUDED IN THE WATCH ARE... BARTLESVILLE CLAREMORE DURANT HUGO IDABEL MCALESTER MIAMI MUSKOGEE OKMULGEE PRYOR SALLISAW TAHLEQUAH TULSA VINITA FORT SMITH FAYETTEVILLE BENTONVILLE HUNTSVILLE BERRYVILLE COUNTIES INCLUDED IN THE WATCH IN EASTERN OKLAHOMA: ADAIR CHEROKEE CRAIG CREEK DELAWARE MAYES MCINTOSH MUSKOGEE NOWATA OKFUSKEE OKMULGEE OSAGE OTTAWA ROGERS SEQUOYAH TULSA WAGONER WASHINGTON PAWNEE CHOCTAW HASKELL LATIMER LE FLORE PITTSBURG PUSHMATAHA IN NORTHWEST ARKANSAS: SEBASTIAN CRAWFORD FRANKLIN WASHINGTON BENTON CARROLL MADISON
Special weather statement, Oct 4, 8:36 PM CDT, 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 836 PM CDT SUN OCT 4 1998 ...TORNADO WATCH NUMBER 864 HAS BEEN EXPANDED TO INCLUDE PAWNEE COUNTY AND NOW INCLUDES ALL OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS UNTIL 1AM... SOME CITIES INCLUDED IN THE WATCH ARE... BARTLESVILLE CLAREMORE DURANT HUGO IDABEL MCALESTER MIAMI MUSKOGEE OKMULGEE PRYOR SALLISAW TAHLEQUAH TULSA VINITA FORT SMITH FAYETTEVILLE BENTONVILLE HUNTSVILLE BERRYVILLE COUNTIES INCLUDED IN THE WATCH IN EASTERN OKLAHOMA: ADAIR CHEROKEE CRAIG CREEK DELAWARE MAYES MCINTOSH MUSKOGEE NOWATA OKFUSKEE OKMULGEE OSAGE OTTAWA ROGERS SEQUOYAH TULSA WAGONER WASHINGTON PAWNEE CHOCTAW HASKELL LATIMER LE FLORE PITTSBURG PUSHMATAHA IN NORTHWEST ARKANSAS: SEBASTIAN CRAWFORD FRANKLIN WASHINGTON BENTON CARROLL MADISON
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 4, 7:00 PM CDT | Tornado Warning | TSA | Pawnee | 45 min |
| Oct 4, 7:35 PM CDT | Tornado Warning | TSA | Osage, Pawnee | 40 min |
| Oct 4, 8:12 PM CDT | Tornado Warning | TSA | Osage | 48 min |
| Oct 4, 8:20 PM CDT | Tornado Warning | TSA | Pawnee | 25 min |
| Oct 4, 8:30 PM CDT | Tornado Warning | TSA | Creek | 45 min |
| Oct 4, 8:39 PM CDT | Tornado Warning | TSA | Osage, Pawnee | 51 min |
| Oct 4, 9:11 PM CDT | Flash Flood Warning | TSA | Osage, Pawnee | 3 hr |
| Oct 4, 9:11 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Rogers | 34 min |
| Oct 4, 9:27 PM CDT | Tornado Warning | TSA | Osage, Pawnee | 33 min |
| Oct 4, 9:40 PM CDT | Tornado Warning | TSA | Creek, Okfuskee | 50 min |
| Oct 4, 9:49 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Nowata, Rogers | 56 min |
| Oct 4, 9:54 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 36 min |
| Oct 4, 10:02 PM CDT | Tornado Warning | TSA | Tulsa, Washington | 43 min |
| Oct 4, 10:11 PM CDT | Tornado Warning | TSA | Craig, Nowata | 49 min |
| Oct 4, 10:26 PM CDT | Tornado Warning | TSA | Rogers | 34 min |
| Oct 4, 10:27 PM CDT | Tornado Warning | TSA | Okfuskee | 48 min |
| Oct 4, 10:36 PM CDT | Tornado Warning | TSA | Tulsa, Washington | 39 min |
| Oct 4, 10:45 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okmulgee | 45 min |
| Oct 4, 10:49 PM CDT | Tornado Warning | TSA | Creek, Okmulgee | 41 min |
| Oct 4, 10:56 PM CDT | Tornado Warning | TSA | Rogers | 34 min |
| Oct 4, 11:07 PM CDT | Tornado Warning | TSA | Okfuskee | 38 min |
| Oct 4, 11:24 PM CDT | Severe Thunderstorm Warning | TSA | Craig | 36 min |
| Oct 4, 11:24 PM CDT | Tornado Warning | TSA | Muskogee, Okmulgee | 51 min |
| Oct 4, 11:52 PM CDT | Flash Flood Warning | TSA | Osage, Pawnee | 2 hr |
| Oct 4, 11:54 PM CDT | Severe Thunderstorm Warning | TSA | Tulsa, Wagoner | 51 min |
| Oct 5, 12:03 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee, Okmulgee | 42 min |
| Oct 5, 12:10 AM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Muskogee, Wagoner | 50 min |
| Oct 5, 12:11 AM CDT | Flash Flood Warning | TSA | Nowata, Washington | 2 hr |
| Oct 5, 12:11 AM CDT | Flash Flood Warning | TSA | Tulsa | 2 hr |
| Oct 5, 12:16 AM CDT | Tornado Warning | TSA | Muskogee, Wagoner | 29 min |
| Oct 5, 12:29 AM CDT | Tornado Warning | TSA | Cherokee | 46 min |
| Oct 5, 12:35 AM CDT | Flash Flood Warning | TSA | Creek, Okmulgee | 115 min |
| Oct 5, 12:38 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Okmulgee | 52 min |
| Oct 5, 12:56 AM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Delaware | 49 min |
| Oct 5, 1:08 AM CDT | Severe Thunderstorm Warning | TSA | Craig | 37 min |
| Oct 5, 1:09 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee, Wagoner | 51 min |
| Oct 5, 1:36 AM CDT | Severe Thunderstorm Warning | TSA | Ottawa | 39 min |
| Oct 5, 1:49 AM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Delaware | 41 min |
| Oct 5, 2:01 AM CDT | Flash Flood Warning | TSA | Cherokee, Craig, Delaware, Mayes, Ottawa | 3 hr |
| Oct 5, 2:01 AM CDT | Flash Flood Warning | TSA | Creek, Okmulgee, Osage, Pawnee, Rogers, Tulsa and 2 more | 3 hr |
| Oct 5, 2:01 AM CDT | Flash Flood Warning | TSA | Muskogee | 3 hr |
| Oct 5, 2:01 AM CDT | Flash Flood Warning | TSA | Nowata | 3 hr |
| Oct 5, 3:34 AM CDT | Severe Thunderstorm Warning | TSA | Delaware | 26 min |
| Oct 5, 3:56 AM CDT | Severe Thunderstorm Warning | TSA | Delaware | 49 min |
| Oct 5, 4:35 AM CDT | Flash Flood Warning | TSA | Cherokee, Craig, Delaware, Mayes, Ottawa | 3 hr |
| Oct 5, 4:35 AM CDT | Flash Flood Warning | TSA | Creek, Osage, Pawnee, Tulsa | 3 hr |
| Oct 5, 4:35 AM CDT | Flash Flood Warning | TSA | Nowata, Rogers, Washington | 3 hr |
| Oct 5, 4:35 AM CDT | Flash Flood Warning | TSA | Wagoner | 3 hr |
| Oct 5, 7:55 AM CDT | Flash Flood Warning | TSA | Cherokee, Mayes, Muskogee, Okmulgee, Rogers, Tulsa and 1 more | 3 hr |
| Oct 5, 7:55 AM CDT | Flash Flood Warning | TSA | Creek, Okfuskee | 3 hr |
| Oct 5, 7:55 AM CDT | Flash Flood Warning | TSA | Craig, Delaware, Ottawa | 3 hr |
| Oct 5, 7:55 AM CDT | Flash Flood Warning | TSA | Adair | 3 hr |
| Oct 5, 10:53 AM CDT | Flash Flood Warning | TSA | Haskell, McIntosh, Pittsburg | 3 hr |
| Oct 5, 10:53 AM CDT | Flash Flood Warning | TSA | Adair, Cherokee, Delaware, Muskogee, Sequoyah | 3 hr |
| Oct 5, 1:45 PM CDT | Flash Flood Warning | TSA | Latimer, Pushmataha | 3 hr |
| Oct 5, 1:45 PM CDT | Flash Flood Warning | TSA | Haskell | 3 hr |
| Oct 5, 1:46 PM CDT | Flash Flood Warning | TSA | Pushmataha | 3 hr |
| Oct 5, 1:49 PM CDT | Flash Flood Warning | TSA | Adair | 3 hr |
| Oct 5, 1:59 PM CDT | Flash Flood Warning | TSA | LeFlore, Sequoyah | 3 hr |
| Oct 5, 2:09 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 61 min |
| Oct 5, 2:45 PM CDT | Flash Flood Warning | TSA | LeFlore, Sequoyah | 2 hr |
| Oct 5, 3:15 PM CDT | Flash Flood Warning | TSA | LeFlore | 3 hr |
| Oct 5, 4:20 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 25 min |
| Oct 5, 5:42 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, LeFlore, Sequoyah | 33 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.