Alert archive / Texas / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 216, NWS Fort Worth, TX

May 29, 2007Johnson County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at May 29, 2007, 1:40 PM CDT for Johnson County, Texas. It was in force for 38 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 29, 2007, 1:40 PM CDT (18:40 UTC)
Expired: May 29, 2007, 2:18 PM CDT
In force: 38 min
Issued by: NWS Fort Worth, TX
Area: Counties, with a storm outline in the text

County Johnson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 22 km from the middle of the area, began a volume at 18:42 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, 6.7 hours before the alert went out and 51 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: 148 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 676 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 29, 12:39 PM CDT, 1 hour 1 minute earlier.

Area forecast discussion, May 29, 12:39 PM CDT, 1 hour 1 minute before

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Hazardous weather outlook, May 29, 4:17 AM CDT, 9 hours 23 minutes before

HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS
NATIONAL WEATHER SERVICE FORT WORTH TX
417 AM CDT TUE MAY 29 2007

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-301000-
ANDERSON-BELL-BOSQUE-COLLIN-COMANCHE-COOKE-CORYELL-DALLAS-DELTA-
DENTON-EASTLAND-ELLIS-ERATH-FALLS-FANNIN-FREESTONE-GRAYSON-HAMILTON-
HENDERSON-HILL-HOOD-HOPKINS-HUNT-JACK-JOHNSON-KAUFMAN-LAMAR-LAMPASAS-
LEON-LIMESTONE-MCLENNAN-MILAM-MILLS-MONTAGUE-NAVARRO-PALO PINTO-
PARKER-RAINS-ROBERTSON-ROCKWALL-SOMERVELL-STEPHENS-TARRANT-VAN ZANDT-
WISE-YOUNG-
417 AM CDT TUE MAY 29 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...THROUGH TONIGHT
THERE IS A CHANCE OF THUNDERSTORMS ACROSS ALL OF NORTH TEXAS TODAY
THROUGH TONIGHT. BRIEF HEAVY RAINFALL COULD RESULT IN LOCALIZED
FLOODING...ESPECIALLY EAST OF THE INTERSTATE 35 CORRIDOR.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH MONDAY
ISOLATED TO SCATTERED THUNDERSTORMS WITH THE POTENTIAL FOR HEAVY RAIN
WILL CONTINUE WEDNESDAY AND THURSDAY. THUNDERSTORM CHANCES
WILL DIMINISH THURSDAY NIGHT WITH VERY LITTLE EXPECTED FRIDAY.
THUNDERSTORMS RETURN TO THE RED RIVER VALLEY SATURDAY...THEN SPREAD
OVER THE REST OF NORTH TEXAS SUNDAY THROUGH EARLY MONDAY.

DUE TO THE EXCESSIVE RAINFALL OF THE PAST SEVERAL DAYS...FLASH
FLOODING WILL BE A MAIN CONCERN EACH DAY. HAIL AND DAMAGING WIND MAY
BE CONCERN THIS WEEKEND AND EARLY MONDAY.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED FOR LOCALIZED FLASH FLOODING TODAY.

In the hours before

Local storm report, May 29, 9:42 AM CDT, 3 hours 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
942 AM CDT TUE MAY 29 2007

..TIME..    ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE..    ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1030 AM     FLASH FLOOD      MCGREGOR                31.45N  97.38W
05/28/2007                   MCLENNAN           TX   EMERGENCY MNGR

            TWO ROADS CLOSED DUE TO FLOODING: OLD MEXIA RD AND HOG
            CREEK RD.

Special weather statement, May 29, 10:53 AM CDT, 2 hours 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
1053 AM CDT TUE MAY 29 2007

TXZ116-129-291630-
PALO PINTO TX-EASTLAND TX-
1053 AM CDT TUE MAY 29 2007

...SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHEASTERN EASTLAND COUNTY
  SOUTHWESTERN PALO PINTO COUNTY

AT 1053 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 13 MILES NORTH OF RANGER...MOVING EAST-SOUTHEAST
AT 25 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE RANGER AND STRAWN.

HAIL...GUSTY WINDS...AND VERY HEAVY RAIN ARE POSSIBLE WITH THIS
STORM.

IF THIS STORM CONTINUES ON ITS PRESENT COURSE...A SEVERE WEATHER
WARNING MAY BE NEEDED.

LAT...LON 3285 9855 3252 9858 3251 9871 3239 9866
      3240 9848 3281 9828

Local storm report, May 29, 11:21 AM CDT, 2 hours 19 minutes before

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Local storm report, May 29, 11:27 AM CDT, 2 hours 13 minutes before

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Special weather statement, May 29, 11:43 AM CDT, 1 hour 57 minutes before

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Special weather statement, May 29, 1:35 PM CDT, 5 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 8:32 AM CDT	Special Weather Statement	FWD	Eastland	43 min
May 29, 9:57 AM CDT	Severe Thunderstorm Warning	FWD	Stephens	63 min
May 29, 10:53 AM CDT	Special Weather Statement	FWD	Palo Pinto	37 min
May 29, 10:59 AM CDT	Severe Thunderstorm Warning	FWD	Palo Pinto, Stephens	61 min
May 29, 11:12 AM CDT	Flash Flood Warning	FWD	Palo Pinto, Stephens	3 hr
May 29, 11:14 AM CDT	Severe Thunderstorm Warning	FWD	Eastland	61 min
May 29, 11:43 AM CDT	Special Weather Statement	FWD	Erath	32 min
May 29, 1:35 PM CDT	Special Weather Statement	FWD	Johnson	25 min
May 29, 2:02 PM CDT	Special Weather Statement	FWD	Ellis	28 min
May 29, 2:21 PM CDT	Special Weather Statement	FWD	Bosque, Hill	24 min
May 29, 2:39 PM CDT	Special Weather Statement	FWD	Ellis	36 min
May 29, 2:45 PM CDT	Special Weather Statement	FWD	McLennan, Navarro	30 min
May 29, 3:19 PM CDT	Special Weather Statement	FWD	Freestone, Limestone, McLennan, Navarro	56 min
May 29, 3:42 PM CDT	Special Weather Statement	FWD	Freestone, Limestone, McLennan, Navarro	33 min
May 29, 4:11 PM CDT	Special Weather Statement	FWD	Anderson, Freestone, Henderson, Limestone	64 min
May 29, 5:18 PM CDT	Special Weather Statement	FWD	Anderson	42 min
May 29, 5:26 PM CDT	Flash Flood Warning	FWD	Hunt, Van Zandt	3 hr
May 29, 5:48 PM CDT	Special Weather Statement	FWD	Robertson	27 min

Nearby

Severe Thunderstorm Warnings in Texas, 2007 Every severe thunderstorm warning in 2007

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.