Alert archive / Texas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 137, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jun 25, 1987, 3:48 PM CDT for Travis County, Texas. It was in force for 57 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
- Jun 25, 1987, 3:48 PM CDT (20:48 UTC)
- Expired
- Jun 25, 1987, 4:45 PM CDT
- In force
- 57 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Travis 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 |
|---|---|---|---|
| Jun 25, 4:45 PM CDT | Thunderstorm Wind 61 | Travis, 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
Victoria Regiona, TX (KVCT), launched 12:00Z, 8.8 hours before the alert went out and 186 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
- 1930 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 810 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 25, 3:40 PM CDT, 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 340 PM CDT THU JUN 25 1987 ...STRONG THUNDERSTORMS RAPIDLY DEVELOPING IN CENTRAL TEXAS... WITHIN THE PAST HOUR STRONG THUNDERSTORMS HAVE DEV ELOPED IN AND AROUND THE AUSTIN AREA. ANYONE OF THESE THUNDERSTORMS MAY PRODUCE SMALL HAIL...GUSTY WINDS AND BRIEF HEAVY RAINS ALONG WITH DANGEROUS LIGHTNING AS THEY MOVE SOUTHEASTWARD.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 4:00 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop | 60 min |
| Jun 25, 4:42 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Lee, Milam, Travis, Williamson | 63 min |
| Jun 25, 4:42 PM CDT | Severe Thunderstorm Warning | EWX | Burleson | 63 min |
| Jun 25, 4:55 PM CDT | Flash Flood Warning | EWX | Travis | 3 hr |
| Jun 25, 5:42 PM CDT | Severe Thunderstorm Warning | EWX | Travis, Williamson | 63 min |
| Jun 25, 6:00 PM CDT | Severe Thunderstorm Warning | EWX | Jackson, Lavaca | 60 min |
| Jun 25, 6:36 PM CDT | Tornado Warning | EWX | Travis | 39 min |
Nearby
Severe Thunderstorm Warnings in Texas, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.