Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 83, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at May 3, 1990, 12:07 AM CDT for McCurtain County, Oklahoma. It was in force for 68 min. 1 report 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
- May 3, 1990, 12:07 AM CDT (05:07 UTC)
- Expired
- May 3, 1990, 1:15 AM CDT
- In force
- 68 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County McCurtain 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 |
|---|---|---|---|
| May 3, 12:35 AM CDT | Thunderstorm Wind 0 | Mccurtain, 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
Longview/Gregg, TX (KGGG), launched 00:00Z, 5.1 hours before the alert went out and 197 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
- 498 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 1063 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 230 m²/s²
- 0-3 km storm-relative helicity
- 443 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 8.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSHV 030509 SVRSHV OKC089-030615- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 1207 AM CDT THU MAY 3 1990 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 115 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS.. IN SOUTHEAST OKLAHOMA ...MCCURTAIN COUNTY AT 1205 AM CDT WEATHER SERVICE RADARS IN LONGIVEW AND SHREVEPORT AND LONGVIEW INDICATED A SEVERE THUNDERSTORM OVER SOUTHEAST OKLAHOMA ABOUT 8 MILES WEST OF VALLIANT IN MCCURTAIN MOVING TO THE EAST AT ABOUT 35 MPH. THIS STORM WILL ALSO PRODUCE VERY HEAVY RAINS WHICH WILL CAUSE FLOODING IN A SHORT PERIOD OF TIME. 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 DON6'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, May 2, 11:22 PM CDT, 45 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-030700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 1120 PM CDT WED MAY 2 1990 ...A FLASH FLOOD WATCH IN EFFECT TONIGHT THROUGH EARLY THURSDAY FOR SOUTHWEST ARKANSAS..NORTHEAST TEXAS..AND SOUTHEAST OKLAHOMA... AT 1115 PM CDT WEATHER SERVICE RADAR IN SHREVEPORT SHOWED AN AREA OF SHOWERS AND THUNDERSTORMS OVER SOUTHEAST OKLAHOMA AND NORTH TEXAS. THE AREA EXTENDED FROM NEAR STIGLER AND THE NORTHWEST CORNER OF MCCURTAIN COUNTY SOUTHWEST TO NEAR ANTLERS OKLAHOMA AND INTO NORTH TEXAS TO NEAR BONHAM AND THE DALLAS/FORT WORTH METROPLEX. THE AREA OF RAINFALL WAS MOVING TO THE EAST AT ABOUT 10 TO 15 MPH WHILE THE SHOWERS AND THUNDERSTORMS WITHIN THE AREA MOVED TO THE NORTHEAST AT 35 MPH. THIS BAND OF SHOWERS AND THUNDERSTORMS SHOULD CONTINUE TO MOVE TO THE EAST AND AFFECT EXTREME SOUTHEAST OKLAHOMA..AND POSSIBLY SOUTHWEST ARKANSAS AND NORTHEAST TEXAS AFTER MIDNIGHT AND TOWARD MORNING. HEAVY RAINFALL ASSOCIATED WITH THE STORMS DURING THE NIGHT WILL PROVIDE RAPID WATER RUNOFF DUE TO THE SATURATED SOILS OVER THE THREE STATE AREA FROM RECENT RAINS..PARTS OF SOUTHEAST OKLAHOMA..SOUTHWEST ARKANSAS..AND EXTREME NORTHEAST TEXAS RECEIVED FROM NEAR TWO TO FOUR INCHES OF RAIN DURING THE EVENING TUESDAY AND WEDNESDAY MORNING. PERSONS LIVING IN LOW LYING OR FLOOD PRONE AREAS OR LAKES..RIVERS..AND STREAMS THAT ARE AT HIGHS LEVELS OR FORECASTED TO REACH HIGH LEVELS.. SHOULD BE PREPARED TO MOVE TO HIGHER GROUND IF HEAVY RAINS OCCUR OR A WARNING IS ISSUED FOR YOUR AREA DURING THE NIGHT AND THURSDAY. STAY TUNED TO TV...RADIO AND NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 2:10 AM CDT | Flash Flood Warning | SHV | McCurtain | 6 hr |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1990Every severe thunderstorm warning in 1990
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.