Alert archive / Texas / Flash Flood Watches in 2017
Flash Flood Watch 3, NWS San Angelo, TX
NWS San Angelo, TX issued this flash flood watch at Sep 25, 2017, 3:27 PM CDT for 16 counties in Texas. It took effect at Sep 25, 2017, 7:00 PM CDT. It was in force for 57 hr.
The area
The counties it named.
The facts
- Issued
- Sep 25, 2017, 3:27 PM CDT (20:27 UTC)
- In effect from
- Sep 25, 2017, 7:00 PM CDT
- Expired
- Sep 28, 2017, 4:02 AM CDT
- In force
- 57 hr
- Issued by
- NWS San Angelo, TX
- Flood severity
- None
Counties Coke County, TX, Concho County, TX, Crockett County, TX, Fisher County, TX, Haskell County, TX, Irion County, TX, Jones County, TX, Kimble County, TX, Menard County, TX, Nolan County, TX, Runnels County, TX, Schleicher County, TX, Sterling County, TX, Sutton County, TX, Taylor County, TX, Tom Green County, TX
The radar
The San Angelo radar (KSJT), 34 km from the middle of the area, began a volume at 20:29 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, 8.5 hours before the alert went out and 180 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
- 922 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 634 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 151 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.6
Nearby
Flash Flood Watches in Texas, 2017Every flash flood watch in 2017
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.