Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 309, NWS Fort Worth, TX

May 27, 2015Denton County, Tarrant County, Wise County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at May 27, 2015, 8:02 PM CDT for Denton County, Tarrant County, Wise County, Texas. It was in force for 58 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
May 27, 2015, 8:02 PM CDT (01:02 UTC)
Expired
May 27, 2015, 9:00 PM CDT
In force
58 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Denton County, TX, Tarrant County, TX, Wise County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 55 km from the middle of the area, began a volume at 01:05 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, 1.0 hours before the alert went out and 27 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 00:00Z on 2015-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2338 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 00:00Z on 2015-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 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
2338 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1151 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.8
Supercell composite
7.9

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 May 27, 6:42 PM CDT, 1 hour 20 minutes earlier.

Area forecast discussion, May 27, 6:42 PM CDT, 1 hour 20 minutes before
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Hazardous weather outlook, May 27, 2:52 PM CDT, 5 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FORT WORTH TX
252 PM CDT WED MAY 27 2015

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-281215-
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-
252 PM CDT WED MAY 27 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.
SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING.
SOME OF THE STORMS MAY BECOME SEVERE WITH LARGE HAIL...DAMAGING
WINDS...AND ISOLATED TORNADOES. ALTHOUGH WIDESPREAD HEAVY RAIN IS
NOT EXPECTED...ANY SIGNIFICANT RAINFALL COULD EASILY LEAD TO
FLOODING ISSUES. ONCE AGAIN...THE ACTIVITY WILL LINGER INTO THE
NIGHTTIME HOURS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
DAILY THUNDERSTORM CHANCES WILL CONTINUE INTO EARLY NEXT WEEK...
WITH THE POTENTIAL FOR SEVERE WEATHER EACH DAY. THE HIGHEST
RAIN CHANCES WILL BE THURSDAY NIGHT INTO SATURDAY...WHEN
WIDESPREAD HEAVY RAINFALL AND FLASH FLOODING WILL BE POSSIBLE.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUESTED THIS AFTERNOON AND EVENING.

In the hours before

Local storm report, May 27, 6:31 PM CDT, 1 hour 31 minutes before
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Local storm report, May 27, 6:41 PM CDT, 1 hour 21 minutes before
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Special weather statement, May 27, 6:46 PM CDT, 1 hour 16 minutes before
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Special weather statement, May 27, 7:12 PM CDT, 50 minutes before
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Local storm report, May 27, 7:18 PM CDT, 44 minutes before
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Local storm report, May 27, 7:25 PM CDT, 37 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 7:00 PM CDTAreal Flood AdvisoryFWDEllis, Navarro3 hr
May 27, 7:01 PM CDTAreal Flood AdvisoryFWDParker3 hr
May 27, 7:08 PM CDTSevere Thunderstorm WarningFWDParker, Tarrant67 min
May 27, 7:12 PM CDTSpecial Weather StatementFWDEastland48 min
May 27, 7:20 PM CDTAreal Flood AdvisoryFWDTarrant3 hr
May 27, 7:37 PM CDTFlash Flood WarningFWDParker, Tarrant3 hr
May 27, 8:31 PM CDTFlash Flood WarningFWDTarrant119 min
May 27, 8:37 PM CDTAreal Flood AdvisoryFWDDenton113 min
May 27, 8:38 PM CDTSevere Thunderstorm WarningFWDDenton33 min
May 27, 9:10 PM CDTSevere Thunderstorm WarningFWDTarrant35 min
May 28, 2:33 AM CDTRiver Flood WarningFWDDenton5 days
May 28, 3:32 AM CDTFlash Flood WatchFWDAnderson, Bell, Bosque, Collin, Comanche, Cooke and 40 more59 hr
May 28, 6:45 AM CDTAreal Flood AdvisoryFWDCooke, Montague3 hr
May 28, 7:37 AM CDTAreal Flood AdvisoryFWDGrayson3 hr
May 28, 8:11 AM CDTFlash Flood WarningFWDCooke, Grayson4 hr
May 28, 12:05 PM CDTAreal Flood WarningFWDCooke, Grayson3 hr
May 28, 1:41 PM CDTSpecial Weather StatementFWDEllis49 min
May 28, 1:56 PM CDTSpecial Weather StatementFWDBell49 min
May 28, 2:07 PM CDTRiver Flood WarningFWDHamilton18 hr
May 28, 3:24 PM CDTSpecial Weather StatementFWDLimestone51 min
May 28, 3:56 PM CDTSevere Thunderstorm WarningFWDHill, Limestone, McLennan, Navarro31 min
May 28, 5:27 PM CDTSevere Thunderstorm WarningFWDYoung63 min
May 28, 5:39 PM CDTSevere Thunderstorm WarningFWDStephens51 min
May 28, 6:16 PM CDTAreal Flood AdvisoryFWDStephens, Young119 min
May 28, 6:16 PM CDTSpecial Weather StatementFWDCollin44 min
May 28, 6:23 PM CDTSevere Thunderstorm WarningFWDCollin, Hunt41 min
May 28, 6:27 PM CDTSevere Thunderstorm WarningFWDJack, Palo Pinto, Stephens, Young63 min
May 28, 6:36 PM CDTFlash Flood WarningFWDStephens, Young114 min

Nearby

Severe Thunderstorm Warnings in Texas, 2015Every severe thunderstorm 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.