Alert archive / Texas / Flash Flood Warnings in 2007

Flash Flood Warning 371, NWS Fort Worth, TX

July 13, 2007McLennan County, Texas

NWS Fort Worth, TX issued this flash flood warning at Jul 13, 2007, 11:40 PM CDT for McLennan 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: Jul 13, 2007, 11:40 PM CDT (04:40 UTC)
Expired: Jul 14, 2007, 2:45 AM CDT
In force: 3 hr
Issued by: NWS Fort Worth, TX
Area: Whole counties

County McLennan County, TX

The radar

The Ft Hood radar (KGRK), 94 km from the middle of the area, began a volume at 04:42 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 00:00Z, 4.7 hours before the alert went out and 142 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: 743 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 776 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 174 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 Jul 13, 9:06 PM CDT, 2 hours 34 minutes earlier.

Area forecast discussion, Jul 13, 9:06 PM CDT, 2 hours 34 minutes before

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Hazardous weather outlook, Jul 13, 8:45 PM CDT, 2 hours 55 minutes before

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In the hours before

Special weather statement, Jul 13, 6:35 PM CDT, 5 hours 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
635 PM CDT FRI JUL 13 2007

TXZ161-140000-
LIMESTONE TX-
635 PM CDT FRI JUL 13 2007

...SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHERN LIMESTONE COUNTY

AT 635 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 9 MILES NORTHWEST OF GROESBECK...MOVING SOUTHEAST
AT 20 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE GROESBECK...FORT PARKER
STATE PARK...THELMA...AND DOYLE

FREQUENT CLOUD TO GROUND LIGHTNING...VERY HEAVY RAINFALL...PEA-SIZED
HAIL...AND WIND GUSTS TO 50 MPH CAN BE EXPECTED FROM THIS STORM.

LAT...LON 3172 9666 3163 9678 3149 9656 3163 9644

Special weather statement, Jul 13, 6:59 PM CDT, 4 hours 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
659 PM CDT FRI JUL 13 2007

TXZ159-140030-
MCLENNAN TX-
659 PM CDT FRI JUL 13 2007

...SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHERN MCLENNAN COUNTY

AT 659 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
CLUSTER OF STRONG THUNDERSTORMS EXTENDING ACROSS THE SOUTHERN PART
OF THE COUNTY FROM MCGREGOR TO ROSENTHAL AND HARRISON. THE STORMS
WERE MOVING SOUTHEAST AT 5 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE BEVERLY HILLS...HEWITT...
LORENA...MCGREGOR...MOODY...RIESEL...ROBINSON AND WOODWAY.

FREQUENT CLOUD TO GROUND LIGHTNING...VERY HEAVY RAINFALL...PEA-SIZED
HAIL...AND WIND GUSTS TO 45 MPH CAN BE EXPECTED FROM THESE STORMS.

LAT...LON 3154 9740 3145 9750 3126 9734 3148 9689
      3156 9701 3153 9722

Special weather statement, Jul 13, 7:39 PM CDT, 4 hours 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
739 PM CDT FRI JUL 13 2007

TXZ157>159-140115-
MCLENNAN TX-CORYELL TX-BELL TX-
739 PM CDT FRI JUL 13 2007

...SIGNIFICANT WEATHER ADVISORY FOR...
  EXTREME NORTH CENTRAL BELL COUNTY
  EXTREME EAST CENTRAL CORYELL COUNTY
  SOUTHWESTERN MCLENNAN COUNTY

AT 739 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 8 MILES SOUTHWEST OF MCGREGOR...MOVING SOUTHEAST
AT 10 MPH ALONG THE CORYELL...MCLENNAN AND BELL COUNTY LINE.

CITIES IN THE PATH OF THIS STORM INCLUDE BRUCEVILLE-EDDY...MOODY AND
MOTHER NEFF STATE PARK.

FREQUENT CLOUD TO GROUND LIGHTNING...VERY HEAVY RAINFALL...PEA-SIZED
HAIL...AND WIND GUSTS TO 50 MPH CAN BE EXPECTED FROM THIS STORM.

LAT...LON 3144 9743 3139 9755 3121 9741 3130 9725

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 7:39 PM CDT	Special Weather Statement	FWD	McLennan	36 min
Jul 13, 8:04 PM CDT	Severe Thunderstorm Warning	FWD	Bell	26 min
Jul 13, 9:19 PM CDT	Severe Thunderstorm Warning	FWD	Bell	23 min
Jul 14, 5:01 AM CDT	Flash Flood Warning	FWD	Freestone, Limestone	3 hr
Jul 14, 5:03 AM CDT	Flash Flood Warning	FWD	Milam	3 hr
Jul 14, 5:20 AM CDT	River Flood Warning	FWD	Limestone	40 hr
Jul 14, 6:09 AM CDT	Flash Flood Warning	FWD	Leon	3 hr
Jul 14, 7:58 AM CDT	Flash Flood Warning	FWD	Milam	3 hr
Jul 14, 8:25 AM CDT	River Flood Warning	FWD	Hunt, Rockwall	12 hr
Jul 14, 8:45 AM CDT	River Flood Warning	FWD	Leon, Robertson	5 days
Jul 14, 9:32 AM CDT	River Flood Warning	FWD	Milam	48 hr
Jul 14, 9:32 AM CDT	River Flood Warning	FWD	Milam	51 hr
Jul 14, 11:25 AM CDT	Flash Flood Warning	FWD	Milam	3 hr

Nearby

Flash Flood Warnings in Texas, 2007 Every flash flood 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.