Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 121, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 16, 1998, 4:34 AM CDT for Latimer County, Oklahoma. It was in force for 56 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
- Apr 16, 1998, 4:34 AM CDT (09:34 UTC)
- Expired
- Apr 16, 1998, 5:30 AM CDT
- In force
- 56 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Latimer County, OK
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 9.6 hours before the alert went out and 199 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
- 9 J/kg
- Mixed-layer CIN
- -158 J/kg
- Mixed-layer LCL
- 1439 m above ground
- 0-6 km bulk shear
- 79 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 220 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
069 WUUS54 KTSA 160936 RRA SVRTUL OKC077-161030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 434 AM CDT THU APR 16 1998 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... LATIMER COUNTY IN SOUTHEASTERN OKLAHOMA * UNTIL 530 AM CDT * AT 432 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM 1 MILE SOUTH OF HIGGINS... MOVING EAST NORTHEAST AT 50 MPH. * SOME LOCATIONS AFFECTED INCLUDE... WILBURTON RED OAK HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. REMAIN 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 Apr 16, 4:00 AM CDT, 34 minutes earlier.
Area forecast discussion, Apr 16, 4:00 AM CDT, 34 minutes before
FPUS3 KTUL 160938 AFDTUL EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 400 AM CDT THU APR 16 1998 SFC BNDRY APPEARS TO HAVE PUSHED A LTL SOUTH OF THE RED RVR IN XTRM SE OK THIS MRNG AND SHLD CONT TO SLOWLY PUSH TO THE SOUTH AND EAST. CURRENTLY HAVE STG/SVR TSTMS ASSOC WITH H85 BNDRY MOVG ACRS E-CNTL OK AND NW AR. XPCTD THESE TO CONT ON TO THE NE OF THE AREA AND WEAKEN OVR THE NXT FEW HRS. WL CONT TO SEE A CHC OF PRECIP AREAWIDE THRU THE DAY AS H7 S/WV SWINGS BY...SO WILL GENERALLY GO WITH CHC POPS ALL ZNS AND ALSO MENTION THUNDER MAINLY OVR SRN AND ERN ZNS FOR THIS MRNG. HIGH PRES BUILDING IN WILL KEEP LLVL FLOW FROM THE NORTH EVENTUALLY TURNING TO THE NE AS CENTER OF HIGH MOVES TO THE NE OF THE AREA. XPCT PLENTY OF CLDS TO HANG ARND THRU THE FCST...SO SLGTLY COOLER FAN TEMPS LOOK THE BEST WITH COOLER AIR TOUGH TO DISLODGE. WILL BRING A CHC OF RAIN BACK INTO THE FCST FOR FRI NGT AND SAT. FCSTID = 4 TUL 56 40 59 42 / 30 10 10 30 FSM 63 42 60 45 / 30 10 10 30 MLC 62 42 62 42 / 30 10 10 30 BVO 54 38 58 40 / 30 10 10 30 FYV 59 39 58 40 / 30 10 10 30 IDB 68 46 63 42 / 40 10 10 30 BYV 58 38 58 38 / 30 10 10 30 MIO 56 39 58 40 / 30 10 10 30 MKO 57 40 59 42 / 30 10 10 30 F10 58 41 60 42 / 30 10 10 30 HHW 67 45 63 42 / 40 10 10 30 .TUL... OK...NONE. AR...NONE.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 7:01 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, LeFlore | 59 min |
| Apr 15, 7:40 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 50 min |
| Apr 15, 8:20 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 40 min |
| Apr 15, 8:45 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore, Pushmataha | 60 min |
| Apr 15, 11:18 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw | 42 min |
| Apr 15, 11:55 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw | 35 min |
| Apr 16, 2:30 AM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 45 min |
| Apr 16, 2:39 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore, Pushmataha | 36 min |
| Apr 16, 2:52 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Muskogee | 38 min |
| Apr 16, 3:06 AM CDT | Severe Thunderstorm Warning | TSA | Adair, Haskell, Sequoyah | 54 min |
| Apr 16, 4:52 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 38 min |
| Apr 16, 4:58 AM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 47 min |
| Apr 16, 5:28 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 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; the sounding from the Mesonet's radiosonde archive.