Alert archive / Texas / Flash Flood Warnings in 2018

Flash Flood Warning 15, NWS San Angelo, TX

August 10, 2018Fisher County, Nolan County, Texas

NWS San Angelo, TX issued this flash flood warning at Aug 10, 2018, 12:22 PM CDT for Fisher County, Nolan County, Texas. It was in force for 113 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 10, 2018, 12:22 PM CDT (17:22 UTC)
Expired
Aug 10, 2018, 2:15 PM CDT
In force
113 min
Issued by
NWS San Angelo, TX
Area
Storm-based polygon
Flood severity
None

Counties Fisher County, TX, Nolan County, TX

The radar

The Dyess AFB radar (KDYX), 108 km from the middle of the area, began a volume at 17:25 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

Midland Regional, TX (KMAF), launched 12:00Z, 5.4 hours before the alert went out and 181 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.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 12:00Z on 2018-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 409 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 12:00Z on 2018-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
409 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
1575 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 10, 4:09 AM CDTAreal Flood AdvisorySJTConcho, McCulloch, San Saba111 min
Aug 10, 5:08 AM CDTAreal Flood AdvisorySJTKimble, Sutton112 min
Aug 10, 5:21 AM CDTFlash Flood WarningSJTMcCulloch, San Saba114 min
Aug 10, 6:07 AM CDTAreal Flood AdvisorySJTMcCulloch, Mason, San Saba113 min
Aug 10, 6:24 AM CDTFlash Flood WarningSJTKimble2 hr
Aug 10, 7:13 AM CDTFlash Flood WarningSJTMcCulloch, Mason, San Saba2 hr
Aug 10, 8:49 AM CDTAreal Flood AdvisorySJTColeman, Runnels116 min
Aug 10, 9:47 AM CDTAreal Flood AdvisorySJTCoke, Runnels, Tom Green118 min
Aug 10, 10:50 AM CDTFlash Flood WarningSJTCoke, Runnels115 min
Aug 10, 11:43 AM CDTAreal Flood AdvisorySJTRunnels, Taylor2 hr
Aug 10, 12:55 PM CDTSpecial Weather StatementSJTIrion50 min
Aug 10, 1:10 PM CDTSevere Thunderstorm WarningSJTCrockett, Irion, Schleicher35 min
Aug 10, 1:40 PM CDTAreal Flood AdvisorySJTCrockett, Irion2 hr
Aug 10, 2:17 PM CDTSpecial Weather StatementSJTThrockmorton28 min
Aug 10, 2:23 PM CDTSevere Thunderstorm WarningSJTCrockett32 min
Aug 10, 2:37 PM CDTSpecial Weather StatementSJTThrockmorton23 min
Aug 10, 2:44 PM CDTAreal Flood AdvisorySJTCrockett3 hr
Aug 10, 2:53 PM CDTSpecial Weather StatementSJTHaskell37 min
Aug 10, 3:18 PM CDTSpecial Weather StatementSJTSutton27 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.