Alert archive / Texas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 227, NWS Fort Worth, TX

August 16, 2014Dallas County, Tarrant County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Aug 16, 2014, 3:38 PM CDT for Dallas County, Tarrant County, Texas. It was in force for 67 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 16, 2014, 3:38 PM CDT (20:38 UTC)
Expired
Aug 16, 2014, 4:45 PM CDT
In force
67 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon

Counties Dallas County, TX, Tarrant County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 33 km from the middle of the area, began a volume at 20:41 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, 8.6 hours before the alert went out and 25 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-pSkew-T log-p diagram, Fort Worth, TX at 12:00Z on 2014-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 408 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 12:00Z on 2014-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
408 J/kg
Mixed-layer CIN
-213 J/kg
Mixed-layer LCL
1514 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
188 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 16, 3:29 PM CDT, 9 minutes earlier.

Area forecast discussion, Aug 16, 3:29 PM CDT, 9 minutes before
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Hazardous weather outlook, Aug 16, 3:23 PM CDT, 15 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FORT WORTH TX
323 PM CDT SAT AUG 16 2014

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-171145-
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-
323 PM CDT SAT AUG 16 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...TONIGHT.
THERE IS A CHANCE OF THUNDERSTORMS OVER MOST OF NORTH TEXAS
THROUGH TONIGHT...WITH THE BEST CHANCES ALONG AND NORTH OF THE
I-20 CORRIDOR. FREQUENT LIGHTNING...PERIODS OF HEAVY RAINFALL AND
STRONG WINDS WILL BE THE MAIN THREATS WITH ANY STORMS THIS
AFTERNOON AND EVENING. A FEW STORMS MAY BECOME SEVERE AND PRODUCE
DAMAGING DOWNBURST WINDS OVER 70 MPH. IN ADDITION...STRONG OUTFLOW
WINDS WILL POSE A THREAT TO THOSE INVOLVED IN OUTDOOR RECREATION
ACTIVITIES...ESPECIALLY ON AREA LAKES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
LOW THUNDERSTORM CHANCES WILL CONTINUE ACROSS MUCH OF NORTH TEXAS
SUNDAY THROUGH TUESDAY. ISOLATED SEVERE DOWNBURST WINDS...PERIODS
OF HEAVY RAINFALL AND FREQUENT LIGHTNING WILL REMAIN THE PRIMARY
HAZARDS...ESPECIALLY DURING THE AFTERNOON AND EVENING PERIODS.

.SPOTTER INFORMATION STATEMENT...
LIMITED SPOTTER ACTIVATION MAY BE REQUESTED THROUGH THIS EVENING
NORTHWEST OF A LAMPASAS TO ATHENS LINE.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 3:03 PM CDTSevere Thunderstorm WarningFWDParker, Tarrant42 min
Aug 16, 4:02 PM CDTSpecial Weather StatementFWDCollin28 min
Aug 16, 4:31 PM CDTSevere Thunderstorm WarningFWDDenton44 min
Aug 16, 6:06 PM CDTSpecial Weather StatementFWDDelta24 min
Aug 16, 6:30 PM CDTSevere Thunderstorm WarningFWDDelta, Hopkins, Lamar60 min

Nearby

Severe Thunderstorm Warnings in Texas, 2014Every severe thunderstorm warning in 2014

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.