Alert archive / Texas / Flash Flood Warnings in 2015

Flash Flood Warning 19, NWS San Angelo, TX

May 27, 2015Brown County, Texas

NWS San Angelo, TX issued this flash flood warning at May 27, 2015, 12:11 AM CDT for Brown 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: May 27, 2015, 12:11 AM CDT (05:11 UTC)
Expired: May 27, 2015, 3:00 AM CDT
In force: 3 hr
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Flood severity: None

County Brown County, TX

The radar

The Dyess AFB radar (KDYX), 88 km from the middle of the area, began a volume at 05:10 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 00:00Z, 5.2 hours before the alert went out and 199 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2534 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 1282 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.0

Open this sounding in Storm Lab

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 May 26, 6:14 PM CDT, 5 hours 57 minutes earlier.

Area forecast discussion, May 26, 6:14 PM CDT, 5 hours 57 minutes before

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Hazardous weather outlook, May 26, 2:12 PM CDT, 9 hours 59 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
212 PM CDT TUE MAY 26 2015

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-271915-
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-
212 PM CDT TUE MAY 26 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS WILL DEVELOP LATE THIS AFTERNOON AND
EVENING AS A DRYLINE MOVES INTO THE AREA. GIVEN THE VERY UNSTABLE
AIR MASS...ANY STORM THAT DOES DEVELOP WILL HAVE THE POTENTIAL OF
QUICKLY REACHING SEVERE LEVELS. VERY LARGE HAIL WILL BE THE MAIN
THREAT...ALTHOUGH DANGEROUS LIGHTNING WILL ALSO BE LIKELY. AN
ISOLATED TORNADO WILL ALSO BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

SCATTERED THUNDERSTORMS ARE POSSIBLE MUCH OF THE REMAINDER OF THE
WEEK...WITH THE BEST CHANCES LIKELY FOR THURSDAY EVENING THROUGH
FRIDAY. THESE STORMS MAY REACH STRONG TO SEVERE LEVELS...WITH
FLASH FLOODING FROM HEAVY RAINFALL...LARGE HAIL...AND DANGEROUS
LIGHTNING THE PRIMARY THREATS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE POSSIBLE THIS AFTERNOON AND
EVENING...AND AGAIN OFF AND ON THROUGH THE WEEK.

In the hours before

Local storm report, May 26, 6:31 PM CDT, 5 hours 40 minutes before

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Local storm report, May 26, 6:33 PM CDT, 5 hours 38 minutes before

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Local storm report, May 26, 6:37 PM CDT, 5 hours 34 minutes before

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Local storm report, May 26, 6:38 PM CDT, 5 hours 33 minutes before

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Special weather statement, May 26, 6:51 PM CDT, 5 hours 20 minutes before

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Local storm report, May 26, 6:55 PM CDT, 5 hours 16 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 7:10 PM CDT	Severe Thunderstorm Warning	SJT	Concho, Runnels	50 min
May 26, 7:40 PM CDT	Special Weather Statement	SJT	Runnels	35 min
May 26, 7:52 PM CDT	Special Weather Statement	SJT	Callahan	23 min
May 26, 7:57 PM CDT	Severe Thunderstorm Warning	SJT	Runnels	35 min
May 26, 8:20 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Shackelford	40 min
May 26, 8:31 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Taylor	44 min
May 26, 8:41 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Shackelford	49 min
May 26, 9:10 PM CDT	Special Weather Statement	SJT	Taylor	35 min
May 26, 9:23 PM CDT	Special Weather Statement	SJT	Shackelford	37 min
May 26, 9:31 PM CDT	Special Weather Statement	SJT	Brown	29 min
May 26, 11:13 PM CDT	Severe Thunderstorm Warning	SJT	Brown	47 min
May 26, 11:53 PM CDT	Severe Thunderstorm Warning	SJT	Brown	52 min
May 27, 12:38 AM CDT	Severe Thunderstorm Warning	SJT	Brown	36 min
May 27, 1:16 AM CDT	Special Weather Statement	SJT	Coleman	29 min
May 27, 1:41 AM CDT	Special Weather Statement	SJT	Brown	34 min
May 27, 1:52 AM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman	38 min
May 27, 2:41 PM CDT	Severe Thunderstorm Warning	SJT	McCulloch, Mason	34 min
May 27, 3:36 PM CDT	Areal Flood Advisory	SJT	Mason	114 min
May 27, 3:50 PM CDT	Special Weather Statement	SJT	Brown	25 min
May 27, 3:57 PM CDT	Special Weather Statement	SJT	Mason	33 min
May 27, 4:08 PM CDT	Severe Thunderstorm Warning	SJT	Mason, Menard	37 min
May 27, 4:41 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, McCulloch, Mason, Menard	49 min
May 27, 5:07 PM CDT	Areal Flood Advisory	SJT	Mason, Menard	83 min
May 27, 5:20 PM CDT	Severe Thunderstorm Warning	SJT	Concho, McCulloch, Menard	40 min
May 27, 5:24 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, Mason, Menard	51 min
May 27, 5:52 PM CDT	Special Weather Statement	SJT	Menard	38 min
May 27, 6:01 PM CDT	Special Weather Statement	SJT	Mason	29 min
May 27, 6:07 PM CDT	Areal Flood Advisory	SJT	Menard	83 min
May 27, 6:14 PM CDT	Special Weather Statement	SJT	Menard	31 min
May 27, 6:38 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, Menard	37 min
May 27, 6:50 PM CDT	Special Weather Statement	SJT	Runnels	25 min
May 27, 6:56 PM CDT	Special Weather Statement	SJT	Menard	34 min

Nearby

Flash Flood Warnings in Texas, 2015 Every 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.