Alert archive / Texas / Tornado Warnings in 2010

Tornado Warning 11, NWS Fort Worth, TX

May 10, 2010Grayson County, Texas

NWS Fort Worth, TX issued this tornado warning at May 10, 2010, 9:52 PM CDT for Grayson 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 10, 2010, 9:52 PM CDT (02:52 UTC)
Expired: May 10, 2010, 10:30 PM CDT
In force: 38 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

County Grayson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 131 km from the middle of the area, began a volume at 02:53 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 10, 4:27 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.9 hours before the alert went out and 105 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: 2602 J/kg
Mixed-layer CIN: -216 J/kg
Mixed-layer LCL: 1245 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 255 m²/s²
0-3 km storm-relative helicity: 396 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 10.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at May 10, 9:23 PM CDT, 29 minutes earlier.

Area forecast discussion, May 10, 9:23 PM CDT, 29 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, May 10, 9:27 PM CDT, 25 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

In the hours before

Special weather statement, May 10, 8:07 PM CDT, 1 hour 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
807 PM CDT MON MAY 10 2010

TXZ115-110130-
STEPHENS TX-
807 PM CDT MON MAY 10 2010

...SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHERN STEPHENS COUNTY

AT 807 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 12 MILES SOUTHWEST OF BRECKENRIDGE...MOVING EAST
AT 40 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE GUNSIGHT AND NECESSITY.

NICKEL-SIZED HAIL AND WIND GUSTS TO 50 MPH CAN BE EXPECTED FROM THIS
STORM.

LAT...LON 3272 9910 3275 9857 3253 9858 3254 9911
TIME...MOT...LOC 0107Z 269DEG 36KT 3264 9903

Special weather statement, May 10, 8:13 PM CDT, 1 hour 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
813 PM CDT MON MAY 10 2010

TXZ094-095-110145-
LAMAR TX-FANNIN TX-
813 PM CDT MON MAY 10 2010

...SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHEASTERN FANNIN COUNTY
  NORTHWESTERN LAMAR COUNTY

AT 809 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM WITH A HISTORY OF TORNADOES JUST NORTH OF THE
RED RIVER NORTH OF RAVENNA MOVING EAST-SOUTHEAST AT 45 MPH. THIS STORM
HAS A HISTORY OF PRODUCING TORNADOES AND ON ITS PRESENT COURSE IT MAY
MOVE INTO EXTREME NORTHEAST FANNIN AND NORTHERN LAMAR COUNTIES AFTER
830 PM CDT.

A SEVERE WEATHER WARNING MAY BE NEEDED. PEOPLE ACROSS EXTREME
NORTHEAST FANNIN AND NORTHWEST LAMAR COUNTIES SHOULD REMAIN ALERT AS
THIS DANGEROUS STORM APPROACHES.

LAT...LON 3391 9563 3369 9566 3376 9619 3378 9617
      3384 9615 3383 9611 3385 9609 3385 9605
      3386 9603 3386 9586 3385 9583
TIME...MOT...LOC 0109Z 277DEG 37KT 3385 9614

07/BB

Special weather statement, May 10, 8:24 PM CDT, 1 hour 28 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
824 PM CDT MON MAY 10 2010

TXZ091-092-110200-
MONTAGUE TX-COOKE TX-
824 PM CDT MON MAY 10 2010

...SIGNIFICANT WEATHER ADVISORY FOR...
  WESTERN COOKE COUNTY
  MONTAGUE COUNTY

AT 824 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 17 MILES NORTHEAST
OF NOCONA TO 5 MILES SOUTHWEST OF BOWIE...MOVING EAST AT 40 MPH.

CITIES IN THE PATH OF THESE STORMS INCLUDE BOWIE...LINDSAY...
MUENSTER...NOCONA...ST. JO...FORESTBURG AND STONEBURG.

PENNY-SIZED HAIL AND WIND GUSTS TO 50 MPH CAN BE EXPECTED FROM THESE
STORMS.

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

LAT...LON 3394 9759 3391 9757 3391 9746 3383 9742
      3389 9731 3389 9718 3386 9716 3384 9708
      3389 9694 3377 9708 3380 9710 3384 9708
      3385 9716 3383 9720 3376 9718 3373 9712
      3345 9742 3345 9798 3369 9797 3396 9765
TIME...MOT...LOC 0124Z 270DEG 36KT 3389 9744 3352 9790

07/BB

Special weather statement, May 10, 8:38 PM CDT, 1 hour 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
838 PM CDT MON MAY 10 2010

TXZ115-116-110215-
PALO PINTO TX-STEPHENS TX-
838 PM CDT MON MAY 10 2010

...SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHWESTERN PALO PINTO COUNTY
  SOUTHEASTERN STEPHENS COUNTY

AT 838 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 12 MILES SOUTHEAST OF BRECKENRIDGE...MOVING EAST
AT 40 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE GORDON...GUNSIGHT AND
NECESSITY.

NICKEL-SIZED HAIL AND WIND GUSTS TO 50 MPH CAN BE EXPECTED FROM THIS
STORM.

IF THIS STORM INTENSIFIES...A SEVERE WEATHER WARNING MAY BE NEEDED.

LAT...LON 3270 9891 3272 9832 3252 9832 3252 9891
TIME...MOT...LOC 0138Z 270DEG 35KT 3261 9880

07/BB

Local storm report, May 10, 8:40 PM CDT, 1 hour 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
840 PM CDT MON MAY 10 2010

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

0830 PM     HAIL             8 SW BRECKENRIDGE       32.67N  99.00W
05/10/2010  E0.88 INCH       STEPHENS           TX   LAW ENFORCEMENT

            NICKEL HAIL 8 SW OF BRECKENRIDGE

Special weather statement, May 10, 9:07 PM CDT, 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
907 PM CDT MON MAY 10 2010

TXZ129-110245-
EASTLAND TX-
907 PM CDT MON MAY 10 2010

...SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHWESTERN EASTLAND COUNTY

AT 908 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 15 MILES SOUTHWEST OF CISCO...MOVING EAST AT 40
MPH.

PENNY-SIZED HAIL AND WIND GUSTS TO 50 MPH CAN BE EXPECTED FROM THIS
STORM.

IF THIS STORM INTENSIFIES...A SEVERE WEATHER WARNING MAY BE NEEDED.

LAT...LON 3226 9912 3233 9912 3232 9867 3217 9875
      3215 9877 3213 9882 3210 9913 3225 9913
TIME...MOT...LOC 0208Z 270DEG 34KT 3221 9913

07/BB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 7:01 PM CDT	Special Weather Statement	FWD	Stephens	29 min
May 10, 7:04 PM CDT	Tornado Warning	FWD	Grayson	42 min
May 10, 8:03 PM CDT	Special Weather Statement	FWD	Palo Pinto, Parker	27 min
May 10, 8:07 PM CDT	Special Weather Statement	FWD	Stephens	23 min
May 10, 8:13 PM CDT	Special Weather Statement	FWD	Fannin	32 min
May 10, 8:35 PM CDT	Severe Thunderstorm Warning	FWD	Cooke, Montague	55 min
May 10, 8:38 PM CDT	Special Weather Statement	FWD	Stephens	37 min
May 10, 9:07 PM CDT	Special Weather Statement	FWD	Eastland	38 min
May 10, 9:19 PM CDT	Severe Thunderstorm Warning	FWD	Grayson	56 min
May 10, 9:51 PM CDT	Severe Thunderstorm Warning	FWD	Fannin, Lamar	54 min
May 10, 10:18 PM CDT	Tornado Warning	FWD	Fannin, Grayson	57 min
May 10, 10:29 PM CDT	Tornado Warning	FWD	Lamar	31 min

Nearby

Tornado Warnings in Texas, 2010 Every tornado warning in 2010 Tornadoes 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.