Alert archive / Texas / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 151, NWS Fort Worth, TX
NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 15, 1990, 9:23 PM CDT for Collin County, Hunt County, Texas. It was in force for 67 min. 2 reports 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 15, 1990, 9:23 PM CDT (02:23 UTC)
- Expired
- Apr 15, 1990, 10:30 PM CDT
- In force
- 67 min
- Issued by
- NWS Fort Worth, TX
- Area
- Whole counties
Counties Collin County, TX, Hunt County, TX
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 15, 9:45 PM CDT | Thunderstorm Wind 0 | Collin, TX | |
| Apr 15, 9:52 PM CDT | Hail 1 | Collin, TX |
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, 2.4 hours before the alert went out and 185 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1874 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 134 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 KFTW 160236 COR SVRFTW TXC085-231-160330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING...CORRECTION FOURTH LINE SECOND PARAGRAPH HUNTSVILLE TO GREENVILLE... NATIONAL WEATHER SERVICE FORT WORTH TX 923 PM CDT SUN APR 15 1990 THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH CENTRAL TEXAS ...COLLIN COUNTY...HUNT COUNTY AT 918 PM CDT...RADAR INDICATED A POSSIBLE SEVERE THUNDERSTORM ALONG THE JUNCTION OF HUNT...COLLIN...AND FANNIN COUNTIES. THE STORM IS MOVING TO THE SOUTH AT ABOUT 40 MPH. AT THIS SPEED AND DIRECTION OF MOVEMENT...THE STORM WOULD TRAVEL BETWEEN THE TOWNS OF GREENVILLE AND MCKINNEY IN THE NEXT 30 MINUTES. IT WILL LIKELY TRAVEL DIRECTLY ACROSS FARMERSVILLE AND FLOYD. THIS STORM HAS A HISTORY OF PRODUCING VERY LARGE HAIL..WITH REPORTS OF TENNIS BALL SIZE HAIL IN EASTERN GRAYSON AND WESTERN FANNIN COUNTIES. RADAR INDICATIONS NOW SHOW THAT THE STORM COULD BE CAPABLE OF PRODUCING DAMAGING WINDS. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
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, Apr 15, 4:04 PM CDT, 5 hours 19 minutes before
TXZ019>031-161200- SEVERE WEATHER OUTLOOK FOR NORTH TEXAS NATIONAL WEATHER SERVICE FORT WORTH TX 4 PM CDT SUN APR 15 1990 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT FOR THAT PART OF NORTH TEXAS GENERALLY NORTH OF A LINE FROM TEXARKANA TO STEPHENVILLE TO NEAR SAN ANGELO. A COLD FRONT HAS MOVED SOUTHWARD INTO OKLAHOMA AND NORTHWEST TEXAS. AN OUTFLOW BOUNDARY FROM STORMS IN OKLAHOMA EXTENDS ACROSS SOUTHERN OKLAHOMA. THE AIRMASS OVER NORTH TEXAS IS MOIST AND UNSTABLE SOUTH OF THE OUTFLOW BOUNDARY AND FRONT. SOUTHERLY LOW LEVEL WINDS WILL CONTINUE TO FEED MOISTURE NORTHWARD INTO THE BOUNDARY. BY LATE AFTERNOON HEATING IS EXPECTED TO REMOVE A TEMPERATURE INVERSION WHICH HAS ACTED AS A LID PREVENTING THUNDERSTORM DEVELOPMENT. ONCE THIS LID IS REMOVED... CONDITIONS WILL BE FAVORABLE FORM SCATTERED THUNDERSTORM DEVELOPMENT. WIND SPEEDS ARE DECREASING WITH HEIGHT AND THERE IS NO IMPORTANT TURNING OF THE WIND DIRECTION IN THE LOWER LEVELS OF THE ATMOSPHERE. THUS TORNADO DEVELOPMENT IS NOT AS LIKELY AS SEVERE THUNDERSTORMS. EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTERS SHOULD KEEP INFORMED AND BE PREPARED FOR POSSIBLE ACTIVATION OF SPOTTER NETS LATERU THIS EVENING AND TONIGHT.
Special weather statement, Apr 15, 5:58 PM CDT, 3 hours 25 minutes before
TXZ021-22-25-26-160000- SEVERE WEATHER OUTLOOK FOR NORTH TEXAS NATIONAL WEATHER SERVICE FORT WORTH TX 6 PM CDT SUN APR 15 1990 A TORNADO WATCH CONTINUES IN EFFECT FOR THE NORTHWESTERN THIRD OF NORTH CENTRAL TEXAS UNTIL 1000 PM CDT. THE COUNTIES OF DENTON...COOKE...GRAYSON ...WISE...LAMAR AND RED RIVER ARE INCLUDED IN THIS WATCH. AT 550 PM STRONG THUNDERSTORMS CONTINUED TO DEVELOP ACROSS SOUTH AND SOUTHEASTERN OKLAHOMA ALONG A COLD FRONT THAT STRETCHED FROM SOUTHEAST OKLAHOMA INTO WEST TEXAS. ANOTHER AREA OF STRONG THUNDERSTORMS WERE DEVELOPING AHEAD OF A DRY LINE ACROSS WEST TEXAS. THE LEADING EDGE OF THESE STORMS WERE NEAR THE ABILENE AREA AND WERE MOVING EAST AT 25 MPH. THESE STORMS ARE LIKELY TO CONTINUE TO DEVELOP IN THE WARM HUMID AIR ACROSS TEXAS AND WILL LIKELY MOVE INTO THE NORTH TEXAS AREA LATER THIS EVENING. PERSONS IN AND CLOSE TO THE TORNADO WATCH AREA SHOULD STAY TUNED TO NOAA RADIO...LOCAL RADIO...OR TELEVISION FO8R LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Apr 15, 5:59 PM CDT, 3 hours 24 minutes before
TXZ021-22-25-26-160000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FORT WORTH TX...CORRECTED HEADING... 6 PM CDT SUN APR 15 1990 A TORNADO WATCH CONTINUES IN EFFECT FOR THE NORTHWESTERN THIRD OF NORTH CENTRAL TEXAS UNTIL 1000 PM CDT. THE COUNTIES OF DENTON...COOKE...GRAYSON ...WISE...LAMAR AND RED RIVER ARE INCLUDED IN THIS WATCH. AT 550 PM STRONG THUNDERSTORMS CONTINUED TO DEVELOP ACROSS SOUTH AND SOUTHEASTERN OKLAHOMA ALONG A COLD FRONT THAT STRETCHED FROM SOUTHEAST OKLAHOMA INTO WEST TEXAS. ANOTHER AREA OF STRONG THUNDERSTORMS WERE DEVELOPING AHEAD OF A DRY LINE ACROSS WEST TEXAS. THE LEADING EDGE OF THESE STORMS WERE NEAR THE ABILENE AREA AND WERE MOVING EAST AT 25 MPH. THESE STORMS ARE LIKELY TO CONTINUE TO DEVELOP IN THE WARM HUMID AIR ACROSS TEXAS AND WILL LIKELY MOVE INTO THE NORTH TEXAS AREA LATER THIS EVENING. PERSONS IN AND CLOSE TO THE TORNADO WATCH AREA SHOULD STAY TUNED TO NOAA RADIO...LOCAL RADIO...OR: TELEVISION FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
The office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 7:03 PM CDT | Tornado Warning | FWD | Cooke | 57 min |
| Apr 15, 7:23 PM CDT | Severe Thunderstorm Warning | FWD | Throckmorton | 67 min |
| Apr 15, 7:47 PM CDT | Severe Thunderstorm Warning | FWD | Archer, Young | 58 min |
| Apr 15, 7:56 PM CDT | Severe Thunderstorm Warning | FWD | Fannin, Grayson | 64 min |
| Apr 15, 8:05 PM CDT | Severe Thunderstorm Warning | FWD | Callahan | 55 min |
| Apr 15, 8:14 PM CDT | Severe Thunderstorm Warning | FWD | Taylor | 61 min |
| Apr 15, 8:34 PM CDT | Severe Thunderstorm Warning | FWD | Montague | 56 min |
| Apr 15, 8:52 PM CDT | Severe Thunderstorm Warning | FWD | Archer, Clay, Jack, Young | 63 min |
| Apr 15, 9:08 PM CDT | Severe Thunderstorm Warning | FWD | Fannin, Grayson | 67 min |
| Apr 15, 9:23 PM CDT | Severe Thunderstorm Warning | FWD | Montague | 67 min |
| Apr 15, 9:40 PM CDT | Severe Thunderstorm Warning | FWD | Wise | 65 min |
| Apr 15, 9:42 PM CDT | Severe Thunderstorm Warning | FWD | Mitchell | 63 min |
| Apr 15, 9:44 PM CDT | Severe Thunderstorm Warning | FWD | Erath | 46 min |
| Apr 15, 10:02 PM CDT | Severe Thunderstorm Warning | FWD | Denton | 58 min |
| Apr 15, 10:45 PM CDT | Severe Thunderstorm Warning | FWD | Dallas | 45 min |
| Apr 16, 12:20 AM CDT | Flash Flood Warning | FWD | Collin, Dallas | 4 hr |
| Apr 16, 12:43 AM CDT | Flash Flood Warning | FWD | Kaufman | 4 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 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.