Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 19, NWS Tulsa, OK

May 5, 1987Cherokee County, Delaware County, Oklahoma

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.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 1987-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 122 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 1987-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

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.

IssuedProductOfficeCountiesLasted
May 5, 3:32 PM CDTSevere Thunderstorm WarningTSARogers, Wagoner58 min
May 5, 4:50 PM CDTSevere Thunderstorm WarningTSAMayes55 min
May 5, 6:17 PM CDTSevere Thunderstorm WarningTSASequoyah58 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.