Alert archive / Texas / Areal Flood Warnings in 2021
Areal Flood Warning 4, NWS San Angelo, TX
NWS San Angelo, TX issued this areal flood warning at Jul 12, 2021, 2:23 PM CDT for San Saba County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 12, 2021, 2:23 PM CDT (19:23 UTC)
- Expired
- Jul 12, 2021, 5:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
- Flood severity
- None
County San Saba County, TX
The radar
The Ft Hood radar (KGRK), 145 km from the middle of the area, began a volume at 19:23 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, 7.4 hours before the alert went out and 236 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
- 373 J/kg
- Mixed-layer CIN
- -177 J/kg
- Mixed-layer LCL
- 1322 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
What forecasters said that day
The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Angelo, TX wrote its last area forecast discussion before this areal flood warning went out at Jul 11, 6:41 PM CDT, 19 hours 42 minutes earlier.
Area forecast discussion, Jul 11, 6:41 PM CDT, 19 hours 42 minutes before
Area Forecast Discussion...UPDATED National Weather Service San Angelo TX 641 PM CDT Sun Jul 11 2021 ...New AVIATION... .SHORT TERM... (This evening through Monday) Issued at 200 PM CDT Sun Jul 11 2021 A weak cold front will provide a focus for scattered thunderstorms to develop across the region through tonight. In fact, conditions may allow for hail and damaging winds to occur with any of the stronger cells that develop. In addition, many of these storms will be efficient rain producers allowing for locally heavy rainfall to occur. Otherwise, look for slightly cooler temperatures during the day tomorrow. However, you will likely not notice a huge difference as temperatures will be in the upper 80s to lower 90s. Isolated thunderstorms will remain a possibility through tomorrow afternoon. && .LONG TERM... (Monday night through next Sunday) Issued at 200 PM CDT Sun Jul 11 2021 Typical summer weather pattern for the upcoming week across West Central Texas. Enough of the upper level ridge builds into place that rain chances are minimal through most of the week, with afternoon temperatures inching up into the mid 90s for most locations. Ridge may break down a little for next weekend, enough at least to allow a weak upper trough to slide into the area. A few storms possible, especially across the western half of the area. && .AVIATION... (00Z TAFS) Issued at 640 PM CDT Sun Jul 11 2021 Areas of scattered to numerous SHRA/TSRA, bringing heavy downpours (which could result in brief LIFR/VLIFR conditions), strong downdraft winds and large hail, are possible through around 07Z north of the I-10. Then, additional SHRA/TSRA will be possible again across areas north of I-10. Otherwise, VFR conditions are expected through 00Z Tues, except for the slight chance of MVFR CIGs developing across the I-10 corridor between 08Z and 16Z, potentially impacting KSOA and KJCT. However, confidence too low to put in the TAFs. Winds will be mostly around 5-10 KT through 00Z Tues. && .PRELIMINARY POINT TEMPS/POPS... Abilene 69 89 70 92 / 40 30 5 0 San Angelo 69 90 69 93 / 40 30 5 0 Junction 71 91 68 92 / 20 20 0 0 Brownwood 70 89 69 93 / 50 40 5 0 Sweetwater 68 88 69 91 / 30 20 0 0 Ozona 69 89 69 91 / 30 20 5 0 && .SJT WATCHES/WARNINGS/ADVISORIES... None. && SHORT TERM...41 LONG TERM....07 AVIATION...SJH
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 7:16 PM CDT | Areal Flood Advisory | SJT | Irion, Tom Green | 3 hr |
| Jul 11, 7:28 PM CDT | Areal Flood Advisory | SJT | Tom Green | 3 hr |
| Jul 11, 7:40 PM CDT | Flash Flood Warning | SJT | Tom Green | 3 hr |
| Jul 11, 7:57 PM CDT | Areal Flood Advisory | SJT | Brown, Coleman, Concho, McCulloch, Runnels, San Saba | 2 hr |
| Jul 11, 8:19 PM CDT | Special Weather Statement | SJT | Runnels | 41 min |
| Jul 11, 8:59 PM CDT | Areal Flood Advisory | SJT | Brown, Coke, Coleman, Runnels | 104 min |
| Jul 11, 9:18 PM CDT | Special Weather Statement | SJT | Brown | 42 min |
| Jul 12, 10:06 AM CDT | Areal Flood Advisory | SJT | San Saba | 3 hr |
| Jul 12, 11:31 AM CDT | Flash Flood Warning | SJT | San Saba | 3 hr |
| Jul 12, 12:36 PM CDT | Areal Flood Advisory | SJT | McCulloch, Mason | 114 min |
| Jul 12, 12:40 PM CDT | Special Weather Statement | SJT | Mason | 50 min |
| Jul 12, 1:30 PM CDT | Areal Flood Advisory | SJT | Concho, McCulloch, Menard | 2 hr |
| Jul 12, 3:08 PM CDT | Areal Flood Advisory | SJT | Tom Green | 3 hr |
| Jul 12, 3:19 PM CDT | Flash Flood Warning | SJT | Tom Green | 3 hr |
| Jul 12, 3:42 PM CDT | Special Weather Statement | SJT | Nolan | 48 min |
| Jul 12, 3:46 PM CDT | Areal Flood Advisory | SJT | Coke, Nolan | 3 hr |
| Jul 12, 3:59 PM CDT | Special Weather Statement | SJT | Sterling | 46 min |
Nearby
Areal Flood Warnings in Texas, 2021Every areal flood warning in 2021
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.