Alert archive / Texas / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 53, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 27, 1996, 7:46 AM CDT for Blanco County, Texas. It was in force for 44 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 27, 1996, 7:46 AM CDT (12:46 UTC)
- Expired
- May 27, 1996, 8:30 AM CDT
- In force
- 44 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Blanco County, TX
The radar
The Austin/San Antonio radar (KEWX), 72 km from the middle of the area, began a volume at 12:49 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 27, 8:06 AM CDT | Hail 0.75 | Blanco, 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.
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 0.8 hours before the alert went out and 256 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
- 2767 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 569 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 1.9
- Supercell composite
- 9.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 271248 SVRSAT TXC031-271330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 746 AM CDT MON MAY 27 1996 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...BLANCO COUNTY AT 742 AM CDT DOPPLER WEATHER RADAR INDICATED A RAPIDLY INTENSIFYING STORM MOVING INTO THE WESTERN PORTION OF BLANCO COUNTY JUST SOUTH OF HWY 290. THIS STORM WAS MOVING TO THE EAST AT 30 MPH. LARGE HAIL...HEAVY RAIN AND DAMAGING THUNDERSTORM WINDS WILL POSSIBLY BE PRODUCED BY THIS STORM AS IT MOVES TO THE EAST... JUST NORTH OF THE CITY OF BLANCO. SEVERE THUNDERSTORM WINDS CAN REACH SPEEDS OVER 60 MPH. THESE WINDS BLOW DOWN TREES...POWER LINES...AND SEVERELY DAMAGE MOBILE HOMES... SOMETIMES BUILDINGS. VERY LARGE HAIL CAN INJURE ANYONE CAUGHT OUTSIDE. IF YOU SEE SEVERE WEATHER TAKING PLACE...CALL YOUR REPORT TO THE NEAREST LAW ENFORCEMENT AGENCY FOR IMMEDIATE RELAY TO THE NATIONAL WEATHER SERVICE.
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 27, 5:40 AM CDT, 2 hours 6 minutes before
TXZ187-193-205-190-172-206-184-188-207-189-186-202-171-204-185- 192-203-183-173-271145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 536 AM CDT MON MAY 27 1996 ...SEVERE THUNDERSTORM WATCH FOR PORTIONS OF THE HILL COUNTRY AND THE EDWARDS PLATEAU WILL EXPIRE AT 600 AM... AT 530 AM CDT STRONG THUNDERSTORMS WITH HEAVY RAIN CONTINUED ACROSS NORTHWESTERN PORTIONS OF THE HILL COUNTRY AND THE EDWARDS PLATEAU EXTENDING FROM LANGTRY NORTHEAST TO ROCKSPRINGS...FREDERICKSBURG AND LAMPASAS. THE HEAVIEST RAIN WAS FALLING EAST OF ROCKSPRINGS...EAST OF JUNCTION AND NORTHWEST OF LLANO. THE SEVERE THUNDERSTORM WARNINGS FOR EDWARDS COUNTY WERE ALLOWED TO EXPI .SMALL HAIL, HEAVY RAIN AND STRONG WINDS WERE REPORTED FROM ROCKSPRINGS. THE STRONGEST PORTION OF THE STORM WENT JUST NORTH OF THERE. SOME OF THE STORMS DUMPED UP TO 2 INCHES OF RAIN IN SOME AREAS ACCORDING TO DOPPLER RAINFALL ESTIMATES. THE THUNDERSTORMS HAD FORMED ON A DRY LINE AHEAD OF A COLD FRONT TRAILING FROM THE LARGE LOW PRESSURE SYSTEM OVER THE GREAT PLAINS. THE THREAT OF SEVERE WEATHER HAS ENDED FOR NOW BUT THE CHANCES FOR SHOWERS AND THUNDERSTORMS WILL REMAIN THROUGH OUT THE DAY FOR CENTRAL AND SOUTH CENTRAL TEXAS.
Special weather statement, May 27, 6:07 AM CDT, 1 hour 39 minutes before
TXZ171>173-183>194-202>209-217>225-228>230-239-281100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 AM CDT MON MAY 27 1996 A WEAK COLD FRONT IN THE NORTHERN HILL COUNTRY AND AN UNSTABLE AIRMASS OVER CENTRAL TEXAS WILL RESULT IN SCATTERED THUNDERSTORMS ACROSS MUCH OF THE HILL COUNTRY...EDWARDS PLATEAU...AND SOUTH CENTRAL TEXAS TODAY AND INTO THIS EVENING. THERE IS A SLIGHT RISK THAT SOME OF THE THUNDERSTORMS WILL BECOME SEVERE...PRODUCING DAMAGING WINDS...BRIEF HEAVY RAINS...AND LARGE HAIL. STAYED TUNED FOR ANY WATCHES OR WARNINGS THAT MAY BE ISSUED TODAY AND POSSIBLY INTO TONIGHT. THE HAZARDOUS WEATHER OUTLOOK IS NOT UPDATED. ANY CHANGES IN THE FORECAST WEATHER WILL BE ACCOMPLISHED THROUGH WATCHES...WARNINGS... STATEMENTS...AND FORECAST PRODUCTS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 3:49 AM CDT | Severe Thunderstorm Warning | EWX | Edwards | 41 min |
| May 27, 4:31 AM CDT | Severe Thunderstorm Warning | EWX | Edwards | 44 min |
| May 27, 5:43 AM CDT | Severe Thunderstorm Warning | EWX | Real | 47 min |
| May 27, 6:21 AM CDT | Flash Flood Warning | EWX | Edwards | 2 hr |
| May 27, 6:42 AM CDT | Flash Flood Warning | EWX | Real | 2 hr |
| May 27, 7:08 AM CDT | Severe Thunderstorm Warning | EWX | Bandera | 52 min |
| May 27, 8:08 AM CDT | Severe Thunderstorm Warning | EWX | Bexar | 67 min |
| May 27, 8:16 AM CDT | Severe Thunderstorm Warning | EWX | Comal, Hays | 59 min |
| May 27, 12:30 PM CDT | Severe Thunderstorm Warning | EWX | Hays | 45 min |
| May 27, 1:35 PM CDT | Severe Thunderstorm Warning | EWX | Caldwell | 25 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1996Every severe thunderstorm warning in 1996
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; radar from the NEXRAD Level II archive.