Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 201, NWS Fort Worth, TX

June 17, 2013Denton County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Jun 17, 2013, 6:39 AM CDT for Denton County, Texas. It was in force for 66 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
Jun 17, 2013, 6:39 AM CDT (11:39 UTC)
Expired
Jun 17, 2013, 7:45 AM CDT
In force
66 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon

County Denton County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 72 km from the middle of the area, began a volume at 11:42 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, 11.7 hours before the alert went out and 45 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 2013-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1098 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 2013-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
1098 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
2009 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.2

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 Jun 17, 3:53 AM CDT, 2 hours 46 minutes earlier.

Area forecast discussion, Jun 17, 3:53 AM CDT, 2 hours 46 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FORT WORTH TX
353 AM CDT MON JUN 17 2013

.DISCUSSION...
A LARGE MCS WILL CONTINUE MOVING SOUTHEAST TOWARD NORTH TEXAS
EARLY THIS MORNING AND SHOULD REACH THE NORTHWEST ZONES SHORTLY
BEFORE 6 AM AS PER THE HRRR AND 4KM WRF SOLUTIONS AS WELL AS LINEAR
EXTRAPOLATION. THE COMPLEX SHOULD WEAKEN AS IT MOVES FARTHER AWAY
FROM ITS UPPER SUPPORT AND ALSO ONCE A 30 KNOT LOW LEVEL JET
DECREASES LATER THIS MORNING. THIS SOLUTION IS ALSO SUPPORTED BY
THE HRRR AND 4KM WRF. WE STILL EXPECT EXTENSIVE CLOUD COVER AND
SCATTERED TO NUMEROUS STORMS...THROUGH THE MORNING WITH THE
EXPECTED TIME OF ARRIVAL OF STORMS AT THE METROPLEX BETWEEN 13 AND
15Z. SOME IMPRESSIVE WIND GUSTS BETWEEN 50 AND 55 KNOTS ARE
OCCURRING WITH THE COMPLEX. IT IS VERY POSSIBLE THAT SOME SIMILAR
WIND GUSTS COULD OCCUR ACROSS THE NORTHWEST CWA BY 6 AM. EXPECT
STORMS TO BECOME LESS ORGANIZED BY MIDDAY AND AFFECT MAINLY THE
EAST/NORTHEAST ZONES.

MODELS ARE CONSISTENT ON DEVELOPING MORE STORMS ACROSS WEST TEXAS ALONG
A FAST MOVING SHORT WAVE AND COLD FRONT LATE THIS AFTERNOON. AM A
BIT CONCERNED THAT EXTENSIVE OVERNIGHT/MORNING CONVECTION MAY
HINDER STORM DEVELOPMENT THIS AFTERNOON. HOWEVER...THE ATMOSPHERE
MAY HAVE JUST ENOUGH TIME TO RECOVER BEFORE SURFACE HEATING IS
LOST. STORMS SHOULD ORGANIZE ALONG THE COLD FRONT AND MOVE
SOUTHEAST INTO NORTH TEXAS TONIGHT/TUESDAY MORNING. AGAIN...WILL
KEEP THE HIGHEST POPS ACROSS THE NORTHERN ZONES. THE COLD FRONT IS
PROGGED TO STALL ACROSS THE NORTHERN HALF OF THE REGION TUESDAY
NIGHT AND LIFT NORTH OF THE RED RIVER BY WEDNESDAY EVENING.

AFTER WEDNESDAY...UPPER LEVEL HIGH PRESSURE WILL BUILD FROM
TEXAS...NORTHWARD THROUGH THE CENTRAL PLAINS. THIS PATTERN WILL
RESULT IN HOT TEMPERATURES AND LITTLE RAIN CHANCES WEDNESDAY NIGHT
THROUGH EARLY NEXT WEEK. EXPECT AFTERNOON HIGHS THROUGH EARLY NEXT
WEEK MAINLY IN THE LOWER AND MIDDLE 90S...EXPERT FOR SOME UPPER
90S IN THE WEST. OVERNIGHT LOWS WILL BE IN THE 70S THROUGH EARLY
NEXT WEEK.

79

&&

.PRELIMINARY POINT TEMPS/POPS...
DALLAS-FT. WORTH, TX  97  77  92  75  95 /  20  30  30  20  20
WACO, TX              95  75  93  74  94 /  10  20  20  20  10
PARIS, TX             93  73  87  72  88 /  50  30  40  40  40
DENTON, TX            98  75  92  73  94 /  40  30  40  30  20
MCKINNEY, TX          94  73  90  73  92 /  30  30  40  30  20
DALLAS, TX            96  77  92  76  93 /  20  30  30  20  20
TERRELL, TX           95  75  91  73  92 /  20  20  30  20  20
CORSICANA, TX         95  74  91  74  92 /  10  20  20  20  10
TEMPLE, TX            95  72  92  73  92 /   5  20  20  10  10
MINERAL WELLS, TX     96  72  92  71  95 /  30  30  30  20  10

&&

.FWD WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

91/79
Hazardous weather outlook, Jun 17, 3:56 AM CDT, 2 hours 43 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FORT WORTH TX
356 AM CDT MON JUN 17 2013

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-181200-
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-
356 AM CDT MON JUN 17 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT.

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS MUCH OF
NORTH TEXAS THROUGH TONIGHT. BEST CHANCES WILL BE THIS MORNING
INTO AFTERNOON ALONG AND NORTH OF INTERSTATE 20. STRONG WINDS AND
FREQUENT LIGHTNING WILL BE THE MAIN THREATS WITH THESE STORMS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED AGAIN TUESDAY AND
WEDNESDAY ACROSS PARTS OF NORTH TEXAS. BEST CHANCES WILL BE CLOSER
TO THE RED RIVER ON TUESDAY. DAMAGING WINDS AND FREQUENT LIGHTNING
WILL BE THE MAIN THREATS WITH THESE STORMS.

WIDESPREAD SEVERE WEATHER IS NOT EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

DUNN

In the hours before

Special weather statement, Jun 17, 4:58 AM CDT, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
458 AM CDT MON JUN 17 2013

TXZ100-171100-
YOUNG TX-
458 AM CDT MON JUN 17 2013

...SIGNIFICANT WEATHER ADVISORY FOR...
  YOUNG COUNTY

AT 457 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF STRONG THUNDERSTORMS FROM WICHITA FALLS TO NORTHWEST OF
OLNEY...MOVING SOUTHEAST AT 40 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE GRAHAM AND OLNEY.

WIND GUSTS TO 50 MPH ARE LIKELY ON THE LEADING EDGE OF THESE
STORMS.  FREQUENT LIGHTNING AND HEAVY RAINFALL WILL ACCOMPANY THESE
STORMS AS THEY MOVE THROUGH OVER THE NEXT HOUR.

LAT...LON 3340 9896 3341 9895 3341 9885 3339 9879
      3340 9842 3295 9843 3296 9895 3325 9896
      3328 9897
TIME...MOT...LOC 0957Z 327DEG 36KT 3334 9888

DUNN
Special weather statement, Jun 17, 5:38 AM CDT, 1 hour 1 minute before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
538 AM CDT MON JUN 17 2013

TXZ101-171145-
JACK TX-
538 AM CDT MON JUN 17 2013

...SIGNIFICANT WEATHER ADVISORY FOR...
  JACK COUNTY

AT 538 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF STRONG THUNDERSTORMS 10 MILES NORTHWEST OF JACKSBORO...MOVING
SOUTHEAST AT 45 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE BRYSON AND JACKSBORO.

WIND GUSTS TO 50 MPH ALONG WITH FREQUENT LIGHTNING AND HEAVY
RAINFALL ARE LIKELY WITH THESE STORMS.

LAT...LON 3347 9798 3343 9798 3343 9792 3300 9793
      3301 9843 3347 9842
TIME...MOT...LOC 1038Z 301DEG 41KT 3332 9832

DUNN
Local storm report, Jun 17, 6:04 AM CDT, 35 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>

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 9:49 PM CDTSpecial Weather StatementFWDLamar56 min
Jun 17, 4:58 AM CDTSpecial Weather StatementFWDYoung62 min
Jun 17, 5:29 AM CDTSevere Thunderstorm WarningFWDMontague61 min
Jun 17, 5:38 AM CDTSpecial Weather StatementFWDJack67 min
Jun 17, 6:02 AM CDTSevere Thunderstorm WarningFWDJack, Wise58 min
Jun 17, 6:08 AM CDTSevere Thunderstorm WarningFWDCooke67 min
Jun 17, 6:54 AM CDTSpecial Weather StatementFWDGrayson66 min
Jun 17, 7:04 AM CDTSpecial Weather StatementFWDTarrant26 min
Jun 17, 7:30 AM CDTAreal Flood AdvisoryFWDCollin, Dallas, Denton, Tarrant90 min
Jun 17, 7:45 AM CDTSpecial Weather StatementFWDDelta, Hunt30 min
Jun 17, 7:48 AM CDTSpecial Weather StatementFWDCollin, Dallas, Rockwall27 min
Jun 17, 7:56 AM CDTSpecial Weather StatementFWDEllis, Johnson34 min
Jun 17, 3:17 PM CDTSpecial Weather StatementFWDJack28 min
Jun 17, 3:26 PM CDTSevere Thunderstorm WarningFWDYoung64 min
Jun 17, 3:51 PM CDTSpecial Weather StatementFWDParker24 min
Jun 17, 4:02 PM CDTSevere Thunderstorm WarningFWDJack, Palo Pinto, Parker58 min
Jun 17, 4:06 PM CDTSpecial Weather StatementFWDDenton24 min

Nearby

Severe Thunderstorm Warnings in Texas, 2013Every severe thunderstorm warning in 2013

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.