Alert archive / Texas / Flash Flood Warnings in 2018
Flash Flood Warning 13, NWS San Angelo, TX
NWS San Angelo, TX issued this flash flood warning at Aug 10, 2018, 7:13 AM CDT for McCulloch County, Mason County, San Saba County, Texas. It was in force for 2 hr. 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 10, 2018, 7:13 AM CDT (12:13 UTC)
- Expired
- Aug 10, 2018, 9:15 AM CDT
- In force
- 2 hr
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties Mason County, TX, McCulloch County, TX, San Saba County, TX
The radar
The Ft Hood radar (KGRK), 134 km from the middle of the area, began a volume at 12:16 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
Fort Worth, TX (KFWD), launched 12:00Z, 0.2 hours before the alert went out and 238 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
- 900 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 1270 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
326
WGUS54 KSJT 101213
FFWSJT
TXC307-319-411-101415-
/O.NEW.KSJT.FF.W.0013.180810T1213Z-180810T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Angelo TX
713 AM CDT FRI AUG 10 2018
The National Weather Service in San Angelo has issued a
* Flash Flood Warning for...
Southeastern McCulloch County in west central Texas...
Northeastern Mason County in west central Texas...
San Saba County in west central Texas...
* Until 915 AM CDT.
* At 711 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to two to three inches of
rain has already fallen. Flash flooding is expected to begin
shortly.
* Some locations that will experience flooding include...
San Saba, Mason, Algerita, Cherokee, Art, Pontotoc, Fredonia, Bend,
Chappel, Sloan, Hedwigs Hill, Grit, Us-190 Near The San Saba-
Lampasas County Line, Harkeyville and Koockville.
This includes the following low water crossings ...
FM 1030 crossing Wallace Creek...
Old Katemcy Mason crossing Comanche Creek...
Old Junction crossing Honey Creek...
crossings along County Road 238...
County Road 343 crossing Cherokee Creek...
Spy Rock crossing...
Old Pontotoc crossing Little Willow Creek...
Behrens School crossing Comanche Creek...
County Road 432 crossing Cherokee Creek and
Old Union crossing San Fernando Creek.
Do not drive through these low water crossings or any other
low water crossing with water flowing across the roadway.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT...LON 3092 9864 3092 9896 3061 9897 3058 9900
3076 9936 3107 9908 3141 9870 3134 9871
3136 9866 3129 9861 3127 9863 3126 9859
3116 9852 3112 9855 3109 9853 3111 9849
3108 9847
$$1 follow-up statement
695
WGUS74 KSJT 101321
FFSSJT
Flash Flood Statement
National Weather Service San Angelo TX
821 AM CDT FRI AUG 10 2018
TXC307-319-411-101415-
/O.CON.KSJT.FF.W.0013.000000T0000Z-180810T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
McCulloch TX-Mason TX-San Saba TX-
821 AM CDT FRI AUG 10 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 AM CDT FOR
SOUTHEASTERN MCCULLOCH...NORTHEASTERN MASON AND SAN SABA COUNTIES...
At 816 AM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area, mainly northeast Mason County. Up to
two to three inches of rain has already from around Mason and to the
east. Flash flooding is expected to begin shortly.
Some locations that will experience flooding include...
San Saba, Mason, Algerita, Cherokee, Art, Pontotoc, Fredonia, Bend,
Chappel, Sloan, Hedwigs Hill, Grit, Us-190 Near The San Saba-
Lampasas County Line, Harkeyville and Koockville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT...LON 3092 9864 3092 9896 3061 9897 3058 9900
3076 9936 3107 9908 3141 9870 3134 9871
3136 9866 3129 9861 3127 9863 3126 9859
3116 9852 3112 9855 3109 9853 3111 9849
3108 9847
$$The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 4:09 AM CDT | Areal Flood Advisory | SJT | Concho, McCulloch, San Saba | 111 min |
| Aug 10, 5:08 AM CDT | Areal Flood Advisory | SJT | Kimble, Sutton | 112 min |
| Aug 10, 5:21 AM CDT | Flash Flood Warning | SJT | McCulloch, San Saba | 114 min |
| Aug 10, 6:07 AM CDT | Areal Flood Advisory | SJT | McCulloch, Mason, San Saba | 113 min |
| Aug 10, 6:24 AM CDT | Flash Flood Warning | SJT | Kimble | 2 hr |
| Aug 10, 8:49 AM CDT | Areal Flood Advisory | SJT | Coleman, Runnels | 116 min |
| Aug 10, 9:47 AM CDT | Areal Flood Advisory | SJT | Coke, Runnels, Tom Green | 118 min |
| Aug 10, 10:50 AM CDT | Flash Flood Warning | SJT | Coke, Runnels | 115 min |
| Aug 10, 11:43 AM CDT | Areal Flood Advisory | SJT | Runnels, Taylor | 2 hr |
| Aug 10, 12:22 PM CDT | Flash Flood Warning | SJT | Fisher, Nolan | 113 min |
| Aug 10, 12:55 PM CDT | Special Weather Statement | SJT | Irion | 50 min |
| Aug 10, 1:10 PM CDT | Severe Thunderstorm Warning | SJT | Crockett, Irion, Schleicher | 35 min |
| Aug 10, 1:40 PM CDT | Areal Flood Advisory | SJT | Crockett, Irion | 2 hr |
| Aug 10, 2:17 PM CDT | Special Weather Statement | SJT | Throckmorton | 28 min |
| Aug 10, 2:23 PM CDT | Severe Thunderstorm Warning | SJT | Crockett | 32 min |
| Aug 10, 2:37 PM CDT | Special Weather Statement | SJT | Throckmorton | 23 min |
| Aug 10, 2:44 PM CDT | Areal Flood Advisory | SJT | Crockett | 3 hr |
| Aug 10, 2:53 PM CDT | Special Weather Statement | SJT | Haskell | 37 min |
| Aug 10, 3:18 PM CDT | Special Weather Statement | SJT | Sutton | 27 min |
Nearby
Flash Flood Warnings in Texas, 2018Every flash flood warning in 2018
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.