Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 49, NWS Tulsa, OK

June 19, 1987LeFlore County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 19, 1987, 4:00 PM CDT for LeFlore County, Oklahoma. It was in force for 60 min.

The area

The counties it named.

The facts

Issued: Jun 19, 1987, 4:00 PM CDT (21:00 UTC)
Expired: Jun 19, 1987, 5:00 PM CDT
In force: 60 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County LeFlore 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, 9.0 hours before the alert went out and 237 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 586 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 758 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 102 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 KFSM 192100
SVRFSM
OKC079-192200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
400 PM CDT FRI JUN 19 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL  500 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTHEAST OKLAHOMA
          ...LE FLORE
 
AT 358 PM CDT RADAR SHOWED A SEVERE THUNDERSTORM 15 MILES NORTHWEST
OF POTEAU OKLAHOMA MOVING SOUTHEAST AT 25 MILES PER HOUR.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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

Special weather statement, Jun 19, 12:13 PM CDT, 3 hours 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA, OK
1202 PM CDT FRI JUN 19 1987

   ...INTENSE THUNDERTSTORMS MOVING INTO WESTERN OSAGE COUNTY...

THUNDERSTORMS ARE MOVING INTO WESTERN OSAGE COUNTY AND COULD PRODUCE
BRIEF HEAVY RAIN...SMALL HAIL AND WIND GUSTS TO NEAR 40 MPH. PERSONS
IN THE KAW CITY...BURBANK AND FORAKER AREAS SHOULD BE ALERT TO THE
POSSIBLITY OF THESE THUNDERSTORMS AS THEY MOVE THROUGH OSAGE COUNTY.

SEVERE THUNDERSTORMS ARE A POSSIBILITY THIS AFTERNOON AS COOLER AIR
ACROSS NORTHERN OKLAHOMA MOVES SOUTHEAST INTO WARM UNSTABLE AIR OVER
EASTERN SECTIONS OF THE STATE. PERSONS PLANNING OUTDOOR ACTIVITIES
SHOULD REMAIN ALERT TO THE POSSIBLITY OF SEVERE WEATHER IN EASTERN
OKLAHOMA THIS AFTERNOON.

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES.

TEAGUE

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.

TEAGUE

Special weather statement, Jun 19, 12:16 PM CDT, 3 hours 44 minutes before

SPECIAL WEATHER STATEMENT CORRECTED
NATIONAL WEATHER SERVICE TULSA, OK
1215 PM CDT FRI JUN 19 1987

   ...INTENSE THUNDERTSTORMS MOVING INTO WESTERN OSAGE COUNTY...

THUNDERSTORMS ARE MOVING INTO WESTERN OSAGE COUNTY AND COULD PRODUCE
BRIEF HEAVY RAIN...SMALL HAIL AND WIND GUSTS TO NEAR 40 MPH. PERSONS
IN THE KAW CITY...BURBANK AND FORAKER AREAS SHOULD BE ALERT TO THE
POSSIBLITY OF THESE THUNDERSTORMS AS THEY MOVE THROUGH OSAGE COUNTY.

SEVERE THUNDERSTORMS ARE A POSSIBILITY THIS AFTERNOON AS COOLER AIR
ACROSS NORTHERN OKLAHOMA MOVES SOUTHEAST INTO WARM UNSTABLE AIR OVER
EASTERN SECTIONS OF THE STATE. PERSONS PLANNING OUTDOOR ACTIVITIES
SHOULD REMAIN ALERT TO THE POSSIBLITY OF SEVERE WEATHER IN EASTERN
OKLAHOMA THIS AFTERNOON.

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES.

TEAGUE

Local storm report, Jun 19, 2:55 PM CDT, 1 hour 5 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
254 PM CDT FRI JUN 19 1987

 TIME/CST COUNTY      EVENT
 105 PM   CREEK       POLICE AND C.D. REPORT HIGH WINDS OF 60
                      MILES AN HOUR AT BRISTOW OKLAHOMA.
 127 PM   TULSA       HIGH WINDS AT THE SAND SPRINGS OKLAHOMA
                      AIRPORT.  WINDS CLOCKED TO 60 MPH.
 145 PM   TULSA       NUMEROUS REPORTS OF 60 MPH WIND GUST
                      ACROSS TULSA COUNTY FROM 145 PM TO 215 PM.
 200 PM   ROGERS      STRONG WINDS OF 67 MPH RECORDED JUST
                      SOUTH OF CATOOSA OKLAHOMA.  PUBLIC REPORT.
 205 PM   TULSA       HIGH WINDS OF MORE THAN 60 MPH OVERTURNED
                      SEVERAL OUTBUILDING AT BIXBY OKLAHOMA.
                      REPORT FROM PUBLIC.
 210 PM   OKMULGEE    STRONG WINDS REPORT BY C.D. NEAR HENRY-
                      ETTE, OKLAHOMA.
 220 PM   OKMULGEE    HIGH WINDS ESTIMATED TO MORE THAN 60 MPH
                      IN EASTERN PART OF OKMULGEE COUNTY BY
                      SPOTTERS.

Local storm report, Jun 19, 3:23 PM CDT, 37 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
323 PM CDT FRI JUN 19 1987

 TIME/CST COUNTY      EVENT
 245 PM   MCINTOSH    C.D. REPORTS STRONG WINDS...ESTIMATED TO
                      NEAR 70 MPH AT CHECOTAH OKLAHOMA.
 255 PM   MAYES       HIGH WINDS CAUSED WIND DAMAGE IN AND
                      AROUND PRYOR OKLAHOMA.  TREES AND POWER
                      LINES DOWN.  ALSO A RADIO TOWER BLOWN
                      DOWN.  REPORT FROM C.D.

Local storm report, Jun 19, 3:24 PM CDT, 36 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
324 PM CDT FRI JUN 19 1987

 TIME/CST COUNTY      EVENT
 245 PM   MCINTOSH    C.D. REPORTS STRONG WINDS...ESTIMATED TO
                      NEAR 70 MPH AT CHECOTAH OKLAHOMA.
 255 PM   MAYES       HIGH WINDS CAUSED WIND DAMAGE IN AND
                      AROUND PRYOR OKLAHOMA.  TREES AND POWER
                      LINES DOWN.  ALSO A RADIO TOWER BLOWN
                      DOWN.  REPORT FROM C.D.

Local storm report, Jun 19, 3:53 PM CDT, 7 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
352 PM CDT FRI JUN 19 1987

 TIME/CST COUNTY      EVENT
 300 PM   MAYES       PUBLIC REPORT OF HIGH WINDS AND MINOR
                      DAMAGE TO TREES AND8 LINES IN CHOUTEAU
                      OKLAHOMA.

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 19, 12:39 PM CDT	Severe Thunderstorm Warning	TSA	Creek	66 min
Jun 19, 1:36 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Tulsa	54 min
Jun 19, 1:56 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Wagoner	64 min
Jun 19, 2:23 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Okmulgee	67 min
Jun 19, 2:33 PM CDT	Severe Thunderstorm Warning	TSA	Mayes	57 min
Jun 19, 3:34 PM CDT	Severe Thunderstorm Warning	TSA	Delaware, Ottawa	26 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1987 Every 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.