Alert archive / Texas / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 53, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 10, 1986, 11:32 AM CDT for Calhoun County, Jackson County, Texas. It was in force for 68 min.
The area
The counties it named.
The facts
- Issued
- May 10, 1986, 11:32 AM CDT (16:32 UTC)
- Expired
- May 10, 1986, 12:40 PM CDT
- In force
- 68 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Calhoun County, TX, Jackson County, TX
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Victoria Regiona, TX (KVCT), launched 12:00Z, 4.5 hours before the alert went out and 34 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
- 2085 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 590 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 6.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 101643 COR SVRVCT BULLETIN-EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING CORRECTED NATIONAL WEATHER SERVICE SAN ANTONIO, TX 1143 AM CDT SAT MAY 10 1986 TXC057-239-101740- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING...CORRECTION NATIONAL WEATHER SERVICE VICTORIA TX 1132 AM CDT SAT MAY 10 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1240 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF TEXAS...CALHOUN AND JACKSON AT 1035 AM CDT THE SEVERE THUNDERSTORMS THAT ARE OCCURING OVER CENTRAL VICTORIA COUNTY WILL BE MOVING INTO WESTERN JACKSON AND WESTERN CALHOUN COUNTIES. THE THUNDERSTORMS ARE MOVING TOWARDS THE EAST AT 25 MPH. FREQUENT LIGHTNING..STRONG DAMAGING WIND AND POSSIBLE HAIL MAY ACCOMPANY THIS STORM. . IF THREATENING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE IMMEDIATELY AND YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE. PLEASE LISTEN TO YOUR LOCAL RADIO..TV..OR NOAA WEATHER RADIO FOR LATER STATEMENTS REGARDING THIS SEVERE WEATHER EPISODE.
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 10, 6:01 AM CDT, 5 hours 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 545 AM CDT SAT MAY 10 1986 ...DENSE FOG DEVELOPING AROUND THE CAPITAL AREA... YESTERDAYS AND LAST NIGHTS HEAVY RAINS LEFT A RIPE ENVIRONMENT FOR FOG THIS MORNING. MANY SPOTS COULD TEMPORAIRILY EXPERIENCE VISIBILITIES BELOW 1 MILE EARLY THIS MORNING. THE MAIN THREAT OR CONCERN IN TODAYS WEATHER IS NOT NECESSARILY THE FOG. WE HAD VERY HEAVY..FLASH FLOODING RAINS YESTERDAY OVER MANY PARTS OF TRAVIS AND SURROUNDING COUNTIES. THAT TOO LEAVES A DANGEROUS ENVIRONMENT FOR ADDITIONAL FLASH FLOODING..ESPECIALLY IF THE LIKELIHOOD FOR MORE HEAVY THUNDERSTORMS REMAINS FAIRLY HIGH..AND IT DOES TODAY. MANY PEOPLE WILL BE TRYING TO ENJOY OUTDOOR ACTIVITIES..AND THAT PUTS A GREAT MANY OF US IN DANGER OF BEING IN THE WRONG PLACE AT THE WRONG TIME. LAKES..RIVERS..CREEKS AND STREAMS COLLECT THE RUNOFF FROM HEAVY RAINS. BEING ON..NEAR..OR DRIVING BACK AND FORTH ACROSS THEM MIGHT BE HAZARDOUS TO YOUR HEALTH. WATCH THE WEATHER CLOSELY TODAY.
Special weather statement, May 10, 7:49 AM CDT, 3 hours 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 755 AM CDT SAT MAY 10 1986 ...HEAVY THUNDERSTORMS NORTHWEST OF AUSTIN... JUST BEFORE 8AM..RADAR SHOWED A LINE OF SHOWERS AND A FEW HEAVY THUNDER STORMS FROM SOUTH OF WACO TO WEST OF GEORGETOWN AND LAKE TRAVIS AND ON INTO THE HILL COUNTRY WEST OF FREDERICKSBURG. THOSE SHOWERS AND THUNDER STORMS WERE MOVING TOWARDS THE EAST AND NORTHEAST AT 20 MPH. OTHER WIDESPREAD RAINS AND HEAVY THUNDERSTORMS CONTINUED FROM EAST TO SOUTH AND SOUTHWEST OF SAN ANTONIO. THEY WERE MOVING TOWARDS THE NORTH EAST AT 25 MPH. THE HIGHEST RAINFALL RATE..NEAR ONE INCH PER HOUR..WAS CENTERED OVER THE EXTREME NORTHWESTERN CORNER OF WILLIAMSON COUNTY.
Special weather statement, May 10, 9:38 AM CDT, 1 hour 54 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 938 AM CDT SAT MAY 10 1986 ...THE FLASH FLOOD WATCH FOR VAL VERDE COUNTY HAS BEEN CANCELED... THE THUNDERSTORM ACTIVITY THAT WAS IN VAL VERDE COUNTY THIS MORNING HAD MOVED TO THE EAST AND NO OTHER THUNDERSTORMS OR RAIN IS EXPECTED TODAY. THE DEVILS RIVER IS STILL RISING SLOWLY AND ANYONE TRAVELING ALONG HIGHWAY 163 NORTH OF COMSTOCK SHOULD CONTINUE TO USE CAUTION SUCH AS LIN AREAS NEAR CREEKS..STREAMS AND LOW WATER CROSSINGS.
Special weather statement, May 10, 10:09 AM CDT, 1 hour 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 1005 AM CDT SAT MAY 10 1986 ...THUNDERSTORMS HAVE DECREASED SLOWLY OVER THE HILL COUNTRY. JUST BEFORE 10AM..RADAR SHOWED A LARGE AREA OF RAIN AND SCATTERED THUNDERSTORMS FROM EAST OF WACO SOUTHWESTWARD ALONG AND WEST OF THE AUSTIN AREA TO NORTHWEST OF SAN ANTONIO. HEAVIEST THUNDERSHOWERS WERE SCATTERED OVER THE AREA FROM NORTHEAST OF GEORGETOWN SOUTHWEST ACROSS LAKE TRAVIS TO NORTHWEST OF SAN ANTONIO. A LARGE AREA OF MOSTLY LIGHT RAIN EXTENDED WEST TO JUST EAST OF BROWNWOOD AND JUNCTION. THIS AREA CONTINUES TO MOVE EAST NORTHEAST AT ABOUT 20 MPH. ANOTHER AREA OF RAIN AND THUNDERSTORMS WAS LOCATED FROM SOUTHEAST OF AUSTIN TO THkREE RIVERS AND ALONG THE COASTAL PLAINS TO WEST OF HOUSTON. THESE RAINS WILL PROLONG THE FLOODING OF LOW WATER CROSSINGS AND LOW FLOOD PRONE AREAS IN THE CENTRAL TEXSAS AREA.
Special weather statement, May 10, 11:25 AM CDT, 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 11 AM CDT SAT MAY 10 1986 ...RAINS OVER THE HILL COUNTRY ARE MOSTLY LIGHT. JUST BEFORE 11AM..RADAR SHOWED A LARGE AREA OF MOSTLY LIGHT RAIN FROM WACO AND HAMILTON SOUTHWEST OVER THE HILL COUNTRY THROUGH THE LAMPASAS JOHNSON CITY AREA TO NEAR HONDO WEST OF SAN ANTONIO. ANOTHER BROAD AREA OF MOSTLY LIGHT TO MODERATE RAINS FROM EAST OF WACO SOUTH AND SOUTHWEST ACROSS THE COLLEGE STATION AREA OVER THE AREA FROM EAST OF AUSTIN TO WEST OF HOUSTON TO THE COASTAL PLAINS SOUTH OF VICTORIA. THIS ACTIVITY CONTINUES TO MOVE EAST AT ABOUT 20 MPH. DURING THE MORNING A 1.50 INCH OF RAIN WAS REPORTED IN LLANO COUNTY WITH OTHER RAINS OF THIS AMOUNT POSSIBLE OVER THE HILL COUNTRY DURING THE MORNING WOULD CONTINUE TO PRODUCE FLOODING OF SOME LOW WATER CROSSINGS OVER THE HILL COUNTRY AND CENTRAL TEXAS. CONTINUE TO APPROACH LOW WATER CROSSINGS WITH CARE.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 8:24 PM CDT | Flash Flood Warning | EWX | Burnet, Lampasas, Travis, Williamson | 3 hr |
| May 9, 8:24 PM CDT | Flash Flood Warning | EWX | Bastrop | 3 hr |
| May 10, 7:09 AM CDT | Flash Flood Warning | EWX | Bandera, Edwards, Kerr, Real | 4 hr |
| May 10, 7:09 AM CDT | Flash Flood Warning | EWX | Kendall | 4 hr |
| May 10, 7:31 AM CDT | Severe Thunderstorm Warning | EWX | Frio | 59 min |
| May 10, 8:35 AM CDT | Severe Thunderstorm Warning | EWX | Atascosa, McMullen | 55 min |
| May 10, 10:00 AM CDT | Severe Thunderstorm Warning | EWX | Goliad | 60 min |
| May 10, 10:12 AM CDT | Severe Thunderstorm Warning | EWX | Victoria | 63 min |
| May 10, 11:16 AM CDT | Severe Thunderstorm Warning | EWX | Calhoun | 59 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1986Every severe thunderstorm warning in 1986
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.