Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 19, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 5, 1987, 6:14 PM CDT for Cherokee County, Delaware County, Oklahoma. It was in force for 61 min.
The area
The counties it named.
The facts
- Issued
- May 5, 1987, 6:14 PM CDT (23:14 UTC)
- Expired
- May 5, 1987, 7:15 PM CDT
- In force
- 61 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Cherokee County, OK, Delaware County, OK
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Springfield, MO (KUMN), launched 12:00Z, 11.2 hours before the alert went out and 128 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
- 122 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 797 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 101 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 052314
SVRTUL
OKC021-041-060015-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
614 PM CDT TUE MAY 5 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 715 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN EAST CENTRAL OKLAHOMA
...NORTHEASTERN CHEROKEE
IN NORTHEAST OKLAHOMA
...SOUTHERN DELAWARE
AT 605 PM THE TULSA WEATHER :RADAR INDICATED A SEVERE THUNDERSTORM
3 MILES NORTHWEST OF TAHLEQUAH MOVING TO THE NORTHEAST AT 20 MPH.
KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.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.
In the hours before
Local storm report, May 5, 1:24 PM CDT, 4 hours 50 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
124 PM CDT TUE MAY 05 1987
TIME/CST COUNTY EVENT (CD=CIVIL DEFENSE OHP=OK HIGHWAY PAT'L)
120 PM TULSA SMALL HAIL REPORTED ABOUT 2 MILES WEST OF
OWASSO OKLAHOMA. REPORT THRU OWASSO POLICE.Local storm report, May 5, 1:50 PM CDT, 4 hours 24 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
148 PM CDT TUE MAY 05 1987
TIME/CST COUNTY EVENT (CD=CIVIL DEFENSE OHP=OK HIGHWAY PAT'L)
SMALL HAIL WAS REPORTED ABOUT 1 1/2 MI=LES
NORTH OF OWASSO AT 96TH STREET AND HIGHWAY 169.
REPORT FROM THE OWASSO PD.Local storm report, May 5, 1:51 PM CDT, 4 hours 23 minutes before
STORM REPORT CORRECTED
NATIONAL WEATHER SERVICE TULSA, OK
150 PM CDT TUE MAY 05 1987
TIME/CDT COUNTY EVENT (CD=CIVIL DEFENSE OHP=OK HIGHWAY PAT'L)
132 PM TULSA SMALL HAIL WAS REPORTED AABOUT 1 1/2 MILES
NORTH OF OWASSO AT 96TH STREET AND HIGHWAY 169.
REPORT FROM THE OWASSO PD.Local storm report, May 5, 4:07 PM CDT, 2 hours 7 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
407 PM CDT TUE MAY 05 1987
TIME/CDT COUNTY EVENT (CD=CIVIL DEFENSE OHP=OK HIGHWAY PAT'L)
300 PM TULSA SMALL HAIL TO MARBLE SIZE REPORTED NEAR BROKEN
ARROW. REPORT FROM PD.
310 PM TULSA MARBLE SIZE HAIL REPORTED BY CIVIL DEFENSE IN
NORTHWEST PART OF TULSA CITY LIMITS ABOUT 2
MILES NORTHWEST OF TUL.
315 PM TU,LSA DIME TO NICKLE SIZE HAIL REPORTED IN NORTH
PART OF BROKEN ARROW. REPORT FROM HAM SPOTTERS.
333 PM TULSA HAIL 1/2 INCH IN DIAMETER REPORTED AT N.W.S
AT TULSA INTERNATIONAL AIRPORT.Special weather statement, May 5, 4:28 PM CDT, 1 hour 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA, OK 427 PM CDT TUE MAY 05 1987 AT 428 PM CDT TULSA RADAR WAS SHOWING A STRONG THUNDERSTORM IN THE EXTREME SOUTH PART OF ROGERS COUNTY MOVING TO THEP NORTHEAST AT 20 MPH. DURING THE LAST 30 MINUTES THIS STORM HAS DECREASE IN STRENGHT. A SEVERE THUNDERSTORM WATCH CONTINUES FOR A LARGE PART OF EASTERN OKLAHOMA UNTIL 8 PM CDT THIS EVENING.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 3:32 PM CDT | Severe Thunderstorm Warning | TSA | Rogers, Wagoner | 58 min |
| May 5, 4:50 PM CDT | Severe Thunderstorm Warning | TSA | Mayes | 55 min |
| May 5, 6:17 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 58 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; the sounding from the Mesonet's radiosonde archive.