Alert archive / Texas / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 21, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 4, 2020, 3:56 AM CST for 6 counties in Texas. It was in force for 49 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
- Mar 4, 2020, 3:56 AM CST (09:56 UTC)
- Expired
- Mar 4, 2020, 4:45 AM CST
- In force
- 49 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bandera County, TX, Gillespie County, TX, Kerr County, TX, Medina County, TX, Real County, TX, Uvalde County, TX
The radar
The Laughlin AFB radar (KDFX), 119 km from the middle of the area, began a volume at 10:00 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 10, 3:30 PM CST | Severe Thunderstorm Watch | SPC | 68 days |
| Mar 4, 2:28 AM CST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 9.9 hours before the alert went out and 159 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
- 277 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1090 m above ground
- 0-6 km bulk shear
- 93 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 294 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The text
As transmitted.
085
WUUS54 KEWX 040956
SVREWX
TXC019-171-265-325-385-463-041045-
/O.NEW.KEWX.SV.W.0021.200304T0956Z-200304T1045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
356 AM CST Wed Mar 4 2020
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Northwestern Medina County in south central Texas...
Bandera County in south central Texas...
Kerr County in south central Texas...
Northeastern Uvalde County in south central Texas...
Southwestern Gillespie County in south central Texas...
Southeastern Real County in south central Texas...
* Until 445 AM CST.
* At 355 AM CST, severe thunderstorms were located along a line
extending from 16 miles south of Segovia to near Kerr Wildlife
Management Area to Vanderpool to 6 miles northwest of Knippa,
moving east at 40 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Medina, Kerrville, Hondo, Bandera, Vanderpool, Tarpley, Ingram,
Sabinal, Hunt, Knippa, Camp Verde, D'Hanis, Concan,
Kerrville-Schreiner Park, Waltonia, Kerr Wildlife Management Area,
Harper, Cypress Creek, Mountain Home and Center Point.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail, damaging winds, and frequent cloud to ground lightning
are occurring with these storms. Move indoors immediately. Lightning
is one of nature's leading killers. Remember, if you can hear
thunder, you are close enough to be struck by lightning.
Heavy rainfall is occurring with these storms, and may lead to flash
flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3009 9894 2980 9903 2931 9921 2928 9979
2971 9970 3001 9962 3019 9975 3029 9934
3029 9930 3030 9930 3032 9921
TIME...MOT...LOC 0955Z 263DEG 33KT 3018 9966 3001 9948 2972 9957 2936
9970
HAIL...0.75IN
WIND...60MPH
$$
RUNYEN2 follow-up statements
740
WWUS54 KEWX 041017
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
417 AM CST Wed Mar 4 2020
TXC385-041027-
/O.CAN.KEWX.SV.W.0021.000000T0000Z-200304T1045Z/
Real TX-
417 AM CST Wed Mar 4 2020
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN REAL COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 AM CST for
south central Texas.
LAT...LON 3009 9894 2980 9903 2931 9921 2930 9964
2970 9952 3003 9942 3021 9954 3029 9934
3029 9930 3030 9930 3032 9921
TIME...MOT...LOC 1017Z 263DEG 33KT 3020 9944 3003 9927 2974 9936 2938
9949
$$
TXC019-171-265-325-463-041045-
/O.CON.KEWX.SV.W.0021.000000T0000Z-200304T1045Z/
Medina TX-Bandera TX-Kerr TX-Uvalde TX-Gillespie TX-
417 AM CST Wed Mar 4 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 AM CST
FOR NORTHWESTERN MEDINA...BANDERA...CENTRAL KERR...NORTHEASTERN
UVALDE AND SOUTHWESTERN GILLESPIE COUNTIES...
At 417 AM CST, severe thunderstorms were located along a line
extending from near Mountain Home to near Waltonia to 7 miles
southwest of Medina to near Sabinal, moving east at 40 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Medina, Kerrville, Hondo, Bandera, Tarpley, Ingram, Sabinal, Hunt,
Camp Verde, D'Hanis, Kerrville-Schreiner Park, Waltonia, Harper,
Cypress Creek, Mountain Home, Center Point, Utopia, Hill Country
State Natural Area and Knippa.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Heavy rainfall is occurring with these storms, and may lead to flash
flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3009 9894 2980 9903 2931 9921 2930 9964
2970 9952 3003 9942 3021 9954 3029 9934
3029 9930 3030 9930 3032 9921
TIME...MOT...LOC 1017Z 263DEG 33KT 3020 9944 3003 9927 2974 9936 2938
9949
HAIL...0.75IN
WIND...60MPH
$$
RUNYEN085
WWUS54 KEWX 041028
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
428 AM CST Wed Mar 4 2020
TXC463-041038-
/O.CAN.KEWX.SV.W.0021.000000T0000Z-200304T1045Z/
Uvalde TX-
428 AM CST Wed Mar 4 2020
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN UVALDE COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area.Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 AM CST for
south central Texas.
LAT...LON 3009 9894 2980 9903 2931 9921 2932 9941
2963 9941 2963 9942 3004 9933 3022 9942
3029 9934 3029 9930 3030 9930 3032 9921
TIME...MOT...LOC 1028Z 259DEG 36KT 3022 9931 3004 9914 2979 9923 2956
9933
$$
TXC019-171-265-325-041045-
/O.CON.KEWX.SV.W.0021.000000T0000Z-200304T1045Z/
Medina TX-Bandera TX-Kerr TX-Gillespie TX-
428 AM CST Wed Mar 4 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 AM CST
FOR NORTHWESTERN MEDINA...CENTRAL BANDERA...EASTERN KERR AND
SOUTHWESTERN GILLESPIE COUNTIES...
At 428 AM CST, severe thunderstorms were located along a line
extending from near Mountain Home to Kerrville to Medina to 7 miles
southwest of Tarpley, moving east at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Medina, Kerrville, Hondo, Bandera, Tarpley, Ingram, Hunt, Camp Verde,
D'Hanis, Kerrville-Schreiner Park, Waltonia, Harper, Cypress Creek,
Mountain Home, Center Point and Hill Country State Natural Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Heavy rainfall is occurring with these storms, and may lead to flash
flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3009 9894 2980 9903 2931 9921 2932 9941
2963 9941 2963 9942 3004 9933 3022 9942
3029 9934 3029 9930 3030 9930 3032 9921
TIME...MOT...LOC 1028Z 259DEG 36KT 3022 9931 3004 9914 2979 9923 2956
9933
HAIL...1.00IN
WIND...60MPH
$$
RUNYENThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 12:04 AM CST | Special Weather Statement | EWX | Val Verde | 41 min |
| Mar 4, 12:24 AM CST | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 66 min |
| Mar 4, 1:43 AM CST | Special Weather Statement | EWX | Kinney | 47 min |
| Mar 4, 1:47 AM CST | Areal Flood Advisory | EWX | Val Verde | 3 hr |
| Mar 4, 1:53 AM CST | Severe Thunderstorm Warning | EWX | Edwards, Kinney, Val Verde | 52 min |
| Mar 4, 2:18 AM CST | Special Weather Statement | EWX | Edwards | 42 min |
| Mar 4, 2:32 AM CST | Severe Thunderstorm Warning | EWX | Edwards, Kinney, Real | 43 min |
| Mar 4, 2:41 AM CST | Severe Thunderstorm Warning | EWX | Kinney | 34 min |
| Mar 4, 3:13 AM CST | Severe Thunderstorm Warning | EWX | Bandera, Edwards, Kerr, Real, Uvalde | 47 min |
| Mar 4, 4:43 AM CST | Severe Thunderstorm Warning | EWX | Bandera, Bexar, Blanco, Gillespie, Kendall, Kerr and 1 more | 47 min |
| Mar 4, 4:47 AM CST | Special Weather Statement | EWX | Llano | 43 min |
| Mar 4, 5:23 AM CST | Special Weather Statement | EWX | Burnet, Llano | 52 min |
| Mar 4, 5:29 AM CST | Severe Thunderstorm Warning | EWX | Bexar, Blanco, Comal, Hays, Kendall | 46 min |
| Mar 4, 6:15 AM CST | Special Weather Statement | EWX | Bexar, Burnet, Comal, Hays, Williamson | 45 min |
| Mar 4, 7:01 AM CST | Special Weather Statement | EWX | Bastrop, Caldwell, Guadalupe, Travis, Williamson | 44 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2020Every severe thunderstorm warning 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.