Alert archive / Oklahoma / Tornado Warnings in 1990
Tornado Warning 20, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Apr 24, 1990, 10:58 PM CDT for Ellis County, Oklahoma. It was in force for 32 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
- Apr 24, 1990, 10:58 PM CDT (03:58 UTC)
- Expired
- Apr 24, 1990, 11:30 PM CDT
- In force
- 32 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties
County Ellis 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 |
|---|---|---|---|
| Apr 24, 11:10 PM CDT | Hail 0.88 | Ellis, 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
Dodge City, (KDDC), launched 00:00Z, 4.0 hours before the alert went out and 173 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
- 1446 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 1164 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 281 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 12.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KOKC 250356 TOROKC OKC045-250430- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 1058 PM CDT TUE APR 24 1990 THE NATIONAL WEATHER SERVICE IN OKLAHOMA CITY HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 1130 PM CDT FOR THE FOLLOWING OKLAHOMA LOCATIONS... IN NORTHWEST OKLAHOMA ...ELLIS COUNTY AT 1058 PM A TORNADO WAS INDICATED 5 MILES WEST OF GAGE MOVING NORTH-NORTHEAST AT 15 MPH. TORNADO DAMAGE HAS BEEN REPORTED IN SHATTUCK WITHIN THE PAST FEW MINUTES. THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF AVAILABLE. OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE }LOWEST FLOOR POSSIBLE. AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
What forecasters said that day
The local office's own words before this tornado 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, Apr 24, 7:01 PM CDT, 3 hours 57 minutes before
TXZ019-020-250115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 700 PM CDT TUE APR 24 1990 ...A TORNADO WATCH IS IN EFFECT FOR FOARD AND HARDEMAN COUNTIES UNTIL 11 PM CDT... AT 655 PM WICHITA FALLS RADAR SHOWED AN ISOLATED SEVERE THUNDERSTORM LOCATED NEAR MCLEAN IN WHEELER COUNTY OF THE EASTERN TEXAS PANHANDLE. MOVEMENT WAS TO THE NORTHEAST 20 MPH. ELSEWHERE A FEW SHOWERS AND THUNDERSTORMS CONTINUED BETWEEN ARDMORE AND MCALESTER IN OKLAHOMA.
Special weather statement, Apr 24, 7:58 PM CDT, 3 hours before
TXZ019-020-250215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 800 PM CDT TUE APR 24 1990 ...A TORNADO WATCH IS IN EFFECT FOR FOARD AND HARDEMAN COUNTIES UNTIL 11 PM CDT... ATT 755 PM RADAR SHOWED A COUPLE OF SMALL SHOWERS HAVING DEVELOPED IN SOUTHERN OKLAHOMA BETWEEN FREDERICK AND ROOSEVELT. THIS WAS THE ONLY PRECIPITATION BEING DETECTED WITHIN 125 MILES OF WICHITA FALLS. NO MOVEMENT HAS BEEN DETERMINED.
Special weather statement, Apr 24, 8:59 PM CDT, 1 hour 59 minutes before
TXZ019-020-250315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 900 PM CDT TUE APR 24 1990 ...A TORNADO WATCH IS IN EFFECT FOR FOARD AND HARDEMAN COUNTIES UNTIL 11 PM CDT... AT 855 PM CDT RADAR SHOWED AN ISOLATED STRONG THUNDERSTORM HAD DEVELOPED 35 MILES WEST OF CHILDRESS. OTHER VERY STRONG THUNDERSTORMS CONTINUED ACROSS THE NORTHEASTERN TEXAS PANHANDLE. PRECIPITATION MOVING TO THE NORTHEAST AT 20 MPH.
Special weather statement, Apr 24, 10:00 PM CDT, 58 minutes before
TXZ019-020-250415- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 1000 PM CDT TUE APR 24 1990 ...A TORNADO WATCH CONTINUES IN EFFECT FOR FOARD AND HARDEMAN COUNTIES UNTIL 11 PM CDT... AT 955 PM CDT RADAR SHOWED AN ISOLATED VERY STRONG THUNDERSTORM 30 MILES TO THE NORTHWEST OF CHILDRESS. A SEVERE THUNDERSTORM WAS ALSO LOCATED ALONG TEXAS-OKLAHOMA BORDER SOUTH OF GAGE. PRECIPITATION MOVING TO THE NORTHEAST AT 20 MPH.
Special weather statement, Apr 24, 10:03 PM CDT, 55 minutes before
TXZ019-020-250415- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 1000 PM CDT TUE APR 24 1990 ...A TORNADO WATCH CONTINUES IN EFFECT FOR FOARD AND HARDEMAN COUNTIES UNTIL 11 PM CDT... AT 955 PM CDT RADAR SHOWED AN ISOLATED VERY STRONG THUNDERSTORM 30 MILES TO THE NORTHWEST OF CHILDRESS. A SEVERE THUNDERSTORM WAS ALSO LOCATED ALONG THE TEXAS-OKLAHOMA BORDER SOUTH OF GAGE. PRECIPITATION MOVING TO THE NORTHEAST AT 20 MPH.
Special weather statement, Apr 24, 10:49 PM CDT, 9 minutes before
TXZ019-020-250515- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 1045 PM CDT TUE APR 24 1990 ...A TORNADO WATCH IS IN EFFECT FOR FOARD AND HARDEMAN COUNTIES UNTIL 5 AM CDT WEDNESDAY... AT 1040 PM CDT RADAR SHOWED SHOWERS AND VERY STRONG THUNDERSTORMS INCREASING OVER WESTERN OKLAHOMA AND ACROSS THE EASTERN TEXAS PANHANDLE GENERALLY 40 MILES EITHER SIDE OF A LINE FROM MEMPHIS TEXAS TO NORTH OF GAGE OKLAHOMA. PRECIPITATIOND MOVING TO THE NORTHEAST AT 20 MPH.
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 9:31 PM CDT | Severe Thunderstorm Warning | OUN | Ellis | 59 min |
| Apr 24, 9:58 PM CDT | Tornado Warning | OUN | Ellis | 32 min |
| Apr 24, 10:29 PM CDT | Tornado Warning | OUN | Ellis | 31 min |
| Apr 24, 11:27 PM CDT | Tornado Warning | OUN | Ellis, Harper | 33 min |
| Apr 24, 11:33 PM CDT | Severe Thunderstorm Warning | OUN | Woodward | 42 min |
| Apr 24, 11:58 PM CDT | Tornado Warning | OUN | Harper | 32 min |
| Apr 25, 12:09 AM CDT | Severe Thunderstorm Warning | OUN | Ellis | 51 min |
| Apr 25, 12:14 AM CDT | Severe Thunderstorm Warning | OUN | Woodward | 46 min |
| Apr 25, 12:21 AM CDT | Tornado Warning | OUN | Ellis | 24 min |
| Apr 25, 12:27 AM CDT | Severe Thunderstorm Warning | OUN | Woods | 63 min |
| Apr 25, 12:39 AM CDT | Severe Thunderstorm Warning | OUN | Harper | 36 min |
| Apr 25, 1:36 AM CDT | Severe Thunderstorm Warning | OUN | Ellis | 54 min |
| Apr 25, 12:33 PM CDT | Severe Thunderstorm Warning | OUN | Garvin, McClain | 42 min |
| Apr 25, 12:47 PM CDT | Severe Thunderstorm Warning | OUN | Carter | 43 min |
| Apr 25, 6:28 PM CDT | Flash Flood Warning | OUN | Bryan | 3 hr |
| Apr 25, 6:44 PM CDT | Severe Thunderstorm Warning | OUN | Cotton | 46 min |
| Apr 25, 6:51 PM CDT | Severe Thunderstorm Warning | OUN | Marshall | 39 min |
Nearby
Tornado Warnings in Oklahoma, 1990Every tornado warning in 1990Tornadoes 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.