Alert archive / Texas / Special Weather Statements in 2020
Special Weather Statement, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this special weather statement at Aug 2, 2020, 4:40 PM CDT for Bexar County, Texas. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 2, 2020, 4:40 PM CDT (21:40 UTC)
- Expired
- Aug 2, 2020, 5:30 PM CDT
- In force
- 50 min
- Issued by
- NWS Austin/San Antonio, TX
County Bexar County, TX
The radar
The Austin/San Antonio radar (KEWX), 82 km from the middle of the area, began a volume at 21:40 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.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 9.7 hours before the alert went out and 233 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
- 1512 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 841 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- -43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this special weather statement went out at Aug 2, 3:33 PM CDT, 1 hour 7 minutes earlier.
Area forecast discussion, Aug 2, 3:33 PM CDT, 1 hour 7 minutes before
Area Forecast Discussion National Weather Service Austin/San Antonio TX 333 PM CDT Sun Aug 2 2020 .UPDATE... Quick update to expand PoPs southward and westward through the evening hours based on the current radar trends. The current storms are diurnally driven and will continue to propagate southward along the outflows produced by other storms. In general expect a weakening trend later this evening with the loss of lift from the surface heating. Any of the thunderstorms could produce a quick wind gust of 40 to 55 mph with a microburst which could cause some minor wind damage - a small to medium limb blow off a tree, trash cans blown over, a portion of a fence blown down. In addition to the wind threat, brief heavy rainfall and hail up to the size of nickels will be possible. && .PREV DISCUSSION... /ISSUED 216 PM CDT Sun Aug 2 2020/ SHORT TERM (Today through Monday Night)... Ongoing convection across the I-35 corridor. Some storms have dropped small hail and gusty winds up to 60 mph. Expect similar activity through the afternoon aided by daytime heating. Though not widespread, areas that do get some showers could see up to 3/4 inch. After sunset, storms diminish and the overnight period is warm and dry. Tomorrow, similar conditions expected with more of the isolated convection focused in the Hill Country. Temperatures on the upward trend tomorrow with highs in and around the triple digits for the major metros and I-35 corridor. LONG TERM (Tuesday through Sunday)... The extended forecast looks dry and hot as we enter the climatological peak for maximum daytime highs which will last through mid-August. Sub-tropical ridging centered over the Four Corners region this weekend will gradually shift overhead and expand across the southern CONUS by next weekend. Precipitation chances look low to nil, with perhaps a few showers or thunderstorms over the extreme southeastern Coastal Plains counties of DeWitt and Lavaca in the afternoons Friday through the weekend. High temperatures will range from the mid to upper 90s over the Hill Country to near 105 along portions of the Rio Grande, with lows generally in the 70s. Relatively average moisture is expected with dew points in the low 70s east and 50s to low 60s far west each afternoon, although some Coastal Plains locations will occasionally see some mid-70s Tds. This will translate to daily maximum heat indices in the 100-107 degree range each day Tuesday through next weekend for most locations. Will have to monitor closely as a slight bump in temp and/or humidity could lead to the need for heat advisories at some point in the period. PREV DISCUSSION... /ISSUED 1232 PM CDT Sun Aug 2 2020/ AVIATION... Thunderstorms forming to the northwest of the AUS terminal with SE movement. Included temporary conditions for TS that may reach the terminal over the next couple of hours. Less activity further south along the corridor, and San Antonio sites may get some vicinity showers. Otherwise, light winds and no significant ceilings overnight. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 99 75 100 76 100 / 20 - 10 10 - Austin Bergstrom Intl Airport 97 72 99 75 100 / 20 - 10 10 0 New Braunfels Muni Airport 99 72 99 75 100 / 20 - 10 10 0 Burnet Muni Airport 98 73 97 73 100 / - 0 10 10 - Del Rio Intl Airport 101 75 101 78 106 / 20 0 - 10 0 Georgetown Muni Airport 98 72 99 75 101 / 10 - 10 10 - Hondo Muni Airport 98 72 99 75 103 / 20 - 10 10 0 San Marcos Muni Airport 97 72 99 75 100 / 20 - 10 10 0 La Grange - Fayette Regional 97 74 99 76 100 / 20 - 10 10 - San Antonio Intl Airport 99 76 100 77 102 / 20 - 10 10 0 Stinson Muni Airport 98 74 100 76 101 / 20 - 10 10 0 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && Short-Term/Aviation...Treadway Long-Term...05
Hazardous weather outlook, Aug 2, 3:27 PM CDT, 1 hour 13 minutes before
Hazardous Weather Outlook National Weather Service Austin/San Antonio TX 327 PM CDT Sun Aug 2 2020 TXZ171>173-183>194-202>209-217>225-228-032030- Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Lee-Kinney-Uvalde- Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-Maverick-Zavala- Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca-Dimmit- 327 PM CDT Sun Aug 2 2020 This Hazardous Weather Outlook is for South-Central Texas.. .DAY ONE...This Afternoon And Tonight. Scattered showers and thunderstorms are possible this afternoon into the evening hours. Any of these storms could produce a quick wind gust of 40 to 55 mph which could cause some minor wind damage. In addition, some small hail and brief heavy rainfall is possible. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
In the hours before
Special weather statement, Aug 2, 3:10 PM CDT, 1 hour 30 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
310 PM CDT Sun Aug 2 2020
TXZ206-022100-
Comal TX-
310 PM CDT Sun Aug 2 2020
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL COMAL COUNTY UNTIL 400 PM
CDT...
At 310 PM CDT, Doppler radar was tracking a strong thunderstorm near
Canyon Lake, or near Canyon Lake Dam, moving south at 15 mph.
Winds in excess of 40 mph will be possible with this storm.
Locations impacted include...
New Braunfels, Canyon Lake Dam, Canyon Lake, Bulverde, Spring Branch,
Smithson Valley and Startzville.
LAT...LON 2997 9820 2997 9819 2968 9816 2968 9838
2971 9838 2971 9834 2972 9834 2973 9835
2972 9838 2973 9838 2975 9841 2972 9844
2994 9840 2998 9836
TIME...MOT...LOC 2010Z 002DEG 13KT 2991 9830
BFSpecial weather statement, Aug 2, 3:23 PM CDT, 1 hour 17 minutes before
Special Weather Statement National Weather Service Austin/San Antonio TX 323 PM CDT Sun Aug 2 2020 TXZ205-207-221-022115- Guadalupe TX-Bexar TX-Wilson TX- 323 PM CDT Sun Aug 2 2020 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN GUADALUPE...NORTH CENTRAL WILSON AND EAST CENTRAL BEXAR COUNTIES UNTIL 415 PM CDT... At 323 PM CDT, Doppler radar was tracking a strong thunderstorm near Marion, or near Cibolo, moving south at 15 mph. Winds in excess of 40 mph will be possible with this storm. Locations impacted include... Schertz, Seguin, Cibolo, McQueeney, St. Hedwig, La Vernia, Marion, Santa Clara, New Berlin, Zuehl, Nolte, Zipp and Friendly Corner. PRECAUTIONARY/PREPAREDNESS ACTIONS... To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service office in Austin San Antonio. && LAT...LON 2962 9820 2961 9799 2933 9796 2934 9824 TIME...MOT...LOC 2023Z 002DEG 13KT 2954 9810 BF
Special weather statement, Aug 2, 3:50 PM CDT, 50 minutes before
Special Weather Statement National Weather Service Austin/San Antonio TX 350 PM CDT Sun Aug 2 2020 TXZ193-194-209-022130- Bastrop TX-Fayette TX-Lee TX- 350 PM CDT Sun Aug 2 2020 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN BASTROP...SOUTH CENTRAL LEE AND NORTHWESTERN FAYETTE COUNTIES UNTIL 430 PM CDT... At 349 PM CDT, Doppler radar was tracking a strong thunderstorm near Smithville, moving south at 20 mph. Winds in excess of 40 mph will be possible with this storm. Locations impacted include... Smithville, Muldoon, Serbin, Floy, Plum, Buescher State Park, O'Quinn, Colony, West Point, Winchester and Kirtley. LAT...LON 3013 9720 3015 9699 2979 9688 2975 9719 TIME...MOT...LOC 2049Z 352DEG 16KT 3007 9709 BF
Special weather statement, Aug 2, 4:24 PM CDT, 16 minutes before
Special Weather Statement National Weather Service Austin/San Antonio TX 424 PM CDT Sun Aug 2 2020 TXZ221-222-022215- Karnes TX-Wilson TX- 424 PM CDT Sun Aug 2 2020 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL KARNES AND SOUTHEASTERN WILSON COUNTIES UNTIL 515 PM CDT... At 424 PM CDT, Doppler radar was tracking a strong thunderstorm over Kosciusko, moving south at 20 mph. Winds in excess of 40 mph will be possible with this storm. Locations impacted include... Karnes City, Poth, Kosciusko, Falls City, Cestohowa, Hobson, Paweleville, Deweesville, Helena and Pana Maria. LAT...LON 2913 9810 2916 9787 2887 9773 2884 9814 TIME...MOT...LOC 2124Z 352DEG 16KT 2908 9797 BF
Special weather statement, Aug 2, 4:25 PM CDT, 15 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
425 PM CDT Sun Aug 2 2020
TXZ194-209-022215-
Fayette TX-Lee TX-
425 PM CDT Sun Aug 2 2020
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN LEE AND NORTHEASTERN
FAYETTE COUNTIES UNTIL 515 PM CDT...
At 425 PM CDT, Doppler radar was tracking a strong thunderstorm near
Dime Box, or 7 miles northeast of Giddings, moving south at 20 mph.
Winds in excess of 40 mph will be possible with this storm.
Locations impacted include...
Giddings, Dime Box, Round Top, Lake Somerville State Park & Trailway,
Carmine, Ledbetter, Waldeck, Loebau, Warda, Walhalla, Winedale,
Lincoln and Nechanitz.
LAT...LON 2998 9693 3032 9697 3036 9677 3025 9670
3024 9674 3020 9674 3016 9679 3014 9677
3015 9671 3017 9669 3015 9668 3015 9665
3013 9665 3011 9663 3004 9662
TIME...MOT...LOC 2125Z 348DEG 19KT 3027 9686
BFSpecial weather statement, Aug 2, 4:40 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
440 PM CDT Sun Aug 2 2020
TXZ204-205-220-022230-
Bexar TX-Atascosa TX-Medina TX-
440 PM CDT Sun Aug 2 2020
...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL MEDINA...
NORTHWESTERN ATASCOSA AND SOUTHWESTERN BEXAR COUNTIES UNTIL 530 PM
CDT...
At 439 PM CDT, Doppler radar was tracking a strong thunderstorm over
Cliff, or 12 miles north of Castroville, moving south at 20 mph.
Winds in excess of 40 mph will be possible with this storm.
Locations impacted include...
Western San Antonio, Castroville, Helotes, Lytle, Somerset, Natalia,
Lacoste, Lackland AFB, Cliff, Government Canyon State Natural Area,
Pearson, Rio Medina, Sea World, Lakehills, Von Ormy, Macdona and
Mangus Corner.
LAT...LON 2916 9887 2958 9892 2960 9889 2963 9870
2920 9853
TIME...MOT...LOC 2139Z 348DEG 19KT 2952 9880
BFThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 12:32 PM CDT | Special Weather Statement | EWX | Travis | 43 min |
| Aug 2, 12:47 PM CDT | Special Weather Statement | EWX | Travis | 43 min |
| Aug 2, 1:16 PM CDT | Special Weather Statement | EWX | Travis | 44 min |
| Aug 2, 1:29 PM CDT | Special Weather Statement | EWX | Hays | 46 min |
| Aug 2, 1:47 PM CDT | Special Weather Statement | EWX | Caldwell | 43 min |
| Aug 2, 1:51 PM CDT | Severe Thunderstorm Warning | EWX | Caldwell, Guadalupe, Hays | 35 min |
| Aug 2, 2:18 PM CDT | Special Weather Statement | EWX | Hays | 42 min |
| Aug 2, 2:25 PM CDT | Special Weather Statement | EWX | Caldwell, Gonzales, Guadalupe | 35 min |
| Aug 2, 2:46 PM CDT | Special Weather Statement | EWX | Kinney | 29 min |
| Aug 2, 3:10 PM CDT | Special Weather Statement | EWX | Comal | 50 min |
| Aug 2, 3:23 PM CDT | Special Weather Statement | EWX | Guadalupe | 52 min |
| Aug 2, 3:50 PM CDT | Special Weather Statement | EWX | Fayette | 40 min |
| Aug 2, 4:24 PM CDT | Special Weather Statement | EWX | Karnes | 51 min |
| Aug 2, 4:25 PM CDT | Special Weather Statement | EWX | Lee | 50 min |
| Aug 2, 5:10 PM CDT | Special Weather Statement | EWX | Fayette | 35 min |
| Aug 2, 5:39 PM CDT | Special Weather Statement | EWX | Fayette | 51 min |
Nearby
Special Weather Statements in Texas, 2020Every special weather statement in 2020
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; radar from the NEXRAD Level II archive.