Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 69, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Aug 16, 1987, 7:10 PM CDT for 4 counties in Oklahoma. It was in force for 50 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
- Aug 16, 1987, 7:10 PM CDT (00:10 UTC)
- Expired
- Aug 16, 1987, 8:00 PM CDT
- In force
- 50 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Creek County, OK, Okfuskee County, OK, Okmulgee County, OK, Tulsa County, OK
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 16, 7:30 PM CDT | Thunderstorm Wind 61 | Creek, OK | |
| Aug 16, 7:45 PM CDT | Thunderstorm Wind 52 | Tulsa, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Ok Cty/Will Rgrs, OK (KOKC), launched 00:00Z, 0.2 hours before the alert went out and 138 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
- 2202 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 1517 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KTUL 170010 RRA
SVRTUL
OKC107-037-111-143-170115-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
710 PM CDT SUN AUG 16 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 800 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN EAST CENTRAL OKLAHOMA
...OKFUSKEE
IN NORTHEAST OKLAHOMA
...EASTERN CREEK...OKMULGEE...SOUTHERN TULSA
AT 705 PM CDT RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
WERE LOCATED JUST NORTHEAST OF BRISTOW TO JUST NORTH OF PADEN
OKLAHOMA. THE STORMS ARE MOVING NORTHEAST AT 25 MPH.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
LARGE HAIL...DEARDLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS.
KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 7:16 PM CDT | Severe Thunderstorm Warning | TSA | Mayes, Wagoner | 59 min |
| Aug 16, 8:02 PM CDT | Severe Thunderstorm Warning | TSA | Wagoner | 58 min |
| Aug 16, 8:24 PM CDT | Severe Thunderstorm Warning | TSA | Mayes, Rogers | 36 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1987Every severe thunderstorm warning in 1987
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.