Alert archive / Texas / Flash Flood Warnings in 2015
Flash Flood Warning 42, NWS San Angelo, TX
NWS San Angelo, TX issued this flash flood warning at Jul 8, 2015, 12:18 PM CDT for Brown County, Coleman 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 8, 2015, 12:18 PM CDT (17:18 UTC)
- Expired
- Jul 8, 2015, 3:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties Brown County, TX, Coleman County, TX
The radar
The Dyess AFB radar (KDYX), 85 km from the middle of the area, began a volume at 17:19 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, 5.3 hours before the alert went out and 217 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
- 257 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 828 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -89 m²/s²
- 0-3 km storm-relative helicity
- -40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash 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 flash flood warning went out at Jul 8, 7:00 AM CDT, 5 hours 18 minutes earlier.
Area forecast discussion, Jul 8, 7:00 AM CDT, 5 hours 18 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 700 AM CDT WED JUL 8 2015 .AVIATION... /12Z TAFS/ Mainly MVFR ceilings expected across the terminals through early afternoon, before ceilings lift to VFR. The exception will be KABI where IFR ceilings will persist through the late morning hours. Keeping a TEMPO group at KJCT and KBBD for SHRA this morning, otherwise some additonal rain showers may redevelop and affect primarily the southern terminals after 20Z, ending by early evening. Stratus is expected to develop overnight, with MVFR ceilings affecting the southern terminals after 09Z. && .PREV DISCUSSION... /ISSUED 454 AM CDT Wed Jul 8 2015/ SHORT TERM... (Today and Tonight) ..Heavy rainfall and localized flash flooding remain possible again today... More beneficial rains will continue across portions of West Central Texas through this afternoon/early evening. Early this morning, widespread showers and thunderstorms continue to develop across much of the Heartland and Northwest Hill Country, with this activity becoming more scattered across the Concho Valley. Where it does rain, very heavy rainfall with rapid accumulation rates remain likely, as precipitable water values range from 1.7 inches across western locations (Sterling County to Crockett County), to 2.1 inches across the eastern part of the forecast area. Most of the numerical guidance also shows additional convection developing this afternoon, mainly east of a line from Throckmorton to San Angelo. They also show good precipitation amounts through early afternoon, before things start to wind down. We considered extended the Flash Flood Watch in time through 7 PM. However, with uncertainty regarding how late into the afternoon the heavier precipitation lasts, we decided to hold off on this and let the next shift monitor the trends in the numerical guidance. The Flood Watch was also expanded east to include McCulloch and San Saba Counties. Any remaining convection will diminish by sunset, with drier air moving into the region overnight. Lows will drop into the lower 70s at most locations. LONG TERM... (Wednesday through next Monday) Warmer and drier air will return to area for the middle to end of the week. A ridge of high pressure currently located across the southeastern states will build westward through the remainder of this week, strengthening as it does so, with the center of the ridge taking up residence over eastern New Mexico by early next week. This will result in a continued influx of dry air with increasing upper-level heights. Highs in the mid to upper 90s are likely for this period. && .PRELIMINARY POINT TEMPS/POPS... Abilene 86 72 91 71 91 / 50 10 5 0 0 San Angelo 89 72 91 70 92 / 40 5 5 0 0 Junction 89 72 91 71 90 / 30 5 5 0 0 && .SJT WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH until 1 PM CDT this afternoon FOR THE FOLLOWING ZONES: Brown...Callahan...Coleman...Concho... McCulloch...Runnels...San Saba...Shackelford...Taylor... Throckmorton...Tom Green. && 99/99/24
Hazardous weather outlook, Jul 8, 4:02 AM CDT, 8 hours 16 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 402 AM CDT WED JUL 8 2015 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-090915- FISHER-NOLAN-STERLING-COKE-RUNNELS-IRION-TOM GREEN-CONCHO- CROCKETT-SCHLEICHER-SUTTON-HASKELL-THROCKMORTON-JONES-SHACKELFORD- TAYLOR-CALLAHAN-COLEMAN-BROWN-MCCULLOCH-SAN SABA-MENARD-KIMBLE- MASON- 402 AM CDT WED JUL 8 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS WILL LOCALLY HEAVY RAINFALL WILL CONTINUE ACROSS MUCH OF WEST CENTRAL TEXAS THIS AFTERNOON AND TONIGHT...ESPECIALLY EAST OF A LINE FROM THROCKMORTON...TO SAN ANGELO. DANGEROUS LIGHTNING AND LOCALLY HEAVY RAINFALL IS EXPECTED WITH THESE SHOWERS AND THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.
In the hours before
Local storm report, Jul 8, 11:00 AM CDT, 1 hour 18 minutes before
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</html>The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 7:14 PM CDT | Areal Flood Advisory | SJT | Crockett | 2 hr |
| Jul 7, 11:49 PM CDT | Areal Flood Advisory | SJT | Brown, McCulloch | 116 min |
| Jul 8, 1:02 AM CDT | Flash Flood Warning | SJT | Brown, Coleman, McCulloch, San Saba | 3 hr |
| Jul 8, 1:59 AM CDT | Areal Flood Advisory | SJT | Menard | 2 hr |
| Jul 8, 3:41 AM CDT | Areal Flood Advisory | SJT | Concho, Menard, Schleicher | 109 min |
| Jul 8, 4:17 AM CDT | Flash Flood Warning | SJT | Brown, Coleman, McCulloch, San Saba | 3 hr |
| Jul 8, 7:06 AM CDT | Flash Flood Warning | SJT | Brown, Coleman, McCulloch, San Saba | 114 min |
| Jul 8, 7:30 AM CDT | Areal Flood Advisory | SJT | Callahan, Coleman | 90 min |
| Jul 8, 8:45 AM CDT | Flash Flood Warning | SJT | Brown, Coleman | 4 hr |
| Jul 8, 8:52 AM CDT | Flash Flood Warning | SJT | McCulloch, San Saba | 4 hr |
| Jul 8, 9:17 AM CDT | River Flood Warning | SJT | Brown, San Saba | 24 hr |
| Jul 8, 9:17 AM CDT | River Flood Warning | SJT | Lampasas, San Saba | 49 hr |
| Jul 8, 12:20 PM CDT | River Flood Warning | SJT | Brown | 72 hr |
| Jul 8, 3:26 PM CDT | Flash Flood Warning | SJT | Brown, Coleman | 3 hr |
| Jul 8, 4:32 PM CDT | Areal Flood Advisory | SJT | Irion, Tom Green | 118 min |
| Jul 8, 4:45 PM CDT | Special Weather Statement | SJT | Tom Green | 30 min |
| Jul 8, 5:17 PM CDT | Special Weather Statement | SJT | Tom Green | 43 min |
| Jul 8, 6:49 PM CDT | Areal Flood Warning | SJT | Brown | 12 hr |
Nearby
Flash Flood Warnings in Texas, 2015Every flash flood warning in 2015
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.