Alert archive / Texas / Flash Flood Warnings in 2010

Flash Flood Warning 20, NWS Fort Worth, TX

May 25, 2010Mills County, Texas

NWS Fort Worth, TX issued this flash flood warning at May 25, 2010, 4:51 PM CDT for Mills 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 25, 2010, 4:51 PM CDT (21:51 UTC)
Expired: May 25, 2010, 7:45 PM CDT
In force: 3 hr
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon
Flood severity: None

County Mills County, TX

The radar

The Dyess AFB radar (KDYX), 132 km from the middle of the area, began a volume at 21:50 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, 9.9 hours before the alert went out and 345 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: 1404 J/kg
Mixed-layer CIN: -163 J/kg
Mixed-layer LCL: 802 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Fort Worth, TX wrote its last area forecast discussion before this flash flood warning went out at May 25, 3:23 PM CDT, 1 hour 28 minutes earlier.

Area forecast discussion, May 25, 3:23 PM CDT, 1 hour 28 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FORT WORTH TX
323 PM CDT TUE MAY 25 2010

.DISCUSSION...
SHOWERS AND THUNDERSTORMS HAVE EXPANDED THROUGHOUT THE DAY OVER
OUR SOUTHWESTERN ZONES. WILL INCREASE POPS TO 50 PERCENT FOR THE
SW LOCATIONS THROUGH 00Z...TAPERING OFF TO 20 POPS THIS EVENING.
EXPECT THE MAJORITY OF THE ACTIVITY TO REMAIN WHERE IT IS
NOW...GRADUALLY DIMINISHING BY AROUND 8PM AND THROUGH THE EVENING
HOURS.

OTHERWISE...LITTLE CHANGE TO THE ONGOING FORECAST. WE DID
INCLUDE 10 POPS WITH ISOLATED THUNDERSTORMS MENTIONED FOR
WEDNESDAY. GIVEN THE TRENDS OVER THE LAST COUPLE OF DAYS FOR
DIURNAL CONVECTION...AND NO REAL CHANGE IN AIR MASS OR THE UPPER
LEVEL PATTERN...CANNOT RULE OUT A FEW SHOWERS AND THUNDERSTORMS.

HAVE KEPT 10 POPS FOR THURSDAY WITH NO MENTION OF WEATHER AT THIS
TIME...BUT LATER FORECASTS MAY NEED TO INTRODUCE ISOLATED SHOWERS
OR THUNDERSTORMS AS THE PATTERN REMAINS UNCHANGED.

WINDS WILL GO NORTHEASTERLY BY THURS INTO FRIDAY AS A WEAK FRONT
SLIDES INTO THE REGION. LITTLE EFFECT ON TEMPERATURES...BUT WILL
CONTINUE THE SLIGHT CHANCE OF THUNDERSTORMS OVER THE
EASTERN/NORTHEASTERN ZONES ON FRIDAY.

NO MAJOR CHANGES IN THE EXTENDED FORECAST. HIGHS WILL REMAIN IN
THE 90S WITH OVERNIGHT LOWS IN THE 60S AND 70S.

SCHULTZ

&&

.PRELIMINARY POINT TEMPS/POPS...
DALLAS-FT. WORTH, TX  69  92  68  92  71 /  10  10  10  10  10
WACO, TX              64  91  65  92  67 /  10  10  10  10  10
PARIS, TX             69  88  66  88  68 /  10  10  10  10  10
DENTON, TX            65  91  66  91  66 /  10  10  10  10  10
MCKINNEY, TX          65  90  66  90  66 /  10  10  10  10  10
DALLAS, TX            71  92  68  91  72 /  10  10  10  10  10
TERRELL, TX           67  91  67  91  68 /  10  10  10  10  10
CORSICANA, TX         67  90  67  91  69 /  10  10  10  10  10
TEMPLE, TX            64  88  65  92  66 /  10  10  10  10  10
MINERAL WELLS, TX     64  88  65  90  65 /  10  10  10  10  10

&&

.FWD WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

Hazardous weather outlook, May 25, 3:31 PM CDT, 1 hour 20 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
331 PM CDT TUE MAY 25 2010

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-261115-
MONTAGUE-COOKE-GRAYSON-FANNIN-LAMAR-YOUNG-JACK-WISE-DENTON-COLLIN-
HUNT-DELTA-HOPKINS-STEPHENS-PALO PINTO-PARKER-TARRANT-DALLAS-
ROCKWALL-KAUFMAN-VAN ZANDT-RAINS-EASTLAND-ERATH-HOOD-SOMERVELL-
JOHNSON-ELLIS-HENDERSON-COMANCHE-MILLS-HAMILTON-BOSQUE-HILL-NAVARRO-
FREESTONE-ANDERSON-LAMPASAS-CORYELL-BELL-MCLENNAN-FALLS-LIMESTONE-
LEON-MILAM-ROBERTSON-
331 PM CDT TUE MAY 25 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...THROUGH TONIGHT.
THERE IS A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THIS EVENING
WEST OF A JACKSBORO TO WACO TO TEMPLE LINE. CLOUD TO GROUND
LIGHTNING...HEAVY RAIN AND WIND GUSTS TO 40 MPH WILL ACCOMPANY SOME
OF THESE STORMS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
THERE IS A SLIGHT CHANCE OF THUNDERSTORMS AREA WIDE WEDNESDAY...AND
EAST OF I-35 FRIDAY AFTERNOON AND EVENING.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 4:27 PM CDT	Areal Flood Advisory	FWD	Mills	3 hr
May 25, 5:59 PM CDT	Special Weather Statement	FWD	Lampasas	31 min
May 25, 6:15 PM CDT	Areal Flood Advisory	FWD	Lampasas	3 hr

Nearby

Flash Flood Warnings in Texas, 2010 Every flash flood warning in 2010

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.