Alert archive / Texas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 11, NWS Fort Worth, TX

January 2, 2017Hopkins County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Jan 2, 2017, 6:34 AM CST for Hopkins County, Texas. It was in force for 56 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: Jan 2, 2017, 6:34 AM CST (12:34 UTC)
Expired: Jan 2, 2017, 7:30 AM CST
In force: 56 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Hopkins County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 175 km from the middle of the area, began a volume at 12:35 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
Jan 2, 1:39 AM CST	Severe Thunderstorm Watch	SPC	59 days

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 0.6 hours before the alert went out and 165 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1622 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: -262 m²/s²
0-3 km storm-relative helicity: -165 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 Jan 2, 6:05 AM CST, 29 minutes earlier.

Area forecast discussion, Jan 2, 6:05 AM CST, 29 minutes before

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Hazardous weather outlook, Jan 2, 2:48 AM CST, 3 hours 46 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FORT WORTH TX
248 AM CST MON JAN 2 2017

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-030845-
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-
238 AM CST MON JAN 2 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL TEXAS.

.DAY ONE...TODAY AND TONIGHT.
THUNDERSTORMS ARE LIKELY ACROSS THE ENTIRE REGION THIS MORNING.
SOME STORMS MAY BECOME SEVERE WITH DAMAGING WINDS AND LARGE HAIL.
AN ISOLATED TORNADO OR TWO IS ALSO POSSIBLE...WITH THE BEST
CHANCES SOUTH OF THE INTERSTATE 20 CORRIDOR. ALL STORMS WILL MOVE
EAST OF THE REGION BY MIDDAY.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS POSSIBLE ACROSS ALL OF NORTH AND CENTRAL
TEXAS THIS MORNING BUT MOST LIKELY FOR AREAS SOUTH OF INTERSTATE
20.

In the hours before

Local storm report, Jan 2, 5:12 AM CST, 1 hour 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
512 AM CST MON JAN 02 2017

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

0510 AM     HAIL             1 SW MIDLOTHIAN         32.47N  96.99W
01/02/2017  E0.88 INCH       ELLIS              TX   BROADCAST MEDIA

            NICKEL SIZE HAIL 1 MILE SOUTHWEST OF MIDLOTHIAN

Local storm report, Jan 2, 5:37 AM CST, 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
537 AM CST MON JAN 02 2017

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

0448 AM     TSTM WND DMG     GRANDVIEW               32.27N  97.18W
01/02/2017                   JOHNSON            TX   EMERGENCY MNGR

            SEMI TRUCK BLOWN OVER BY WIND IN GRANDVIEW ALONG
            INTERSTATE 35 AND MM15.

Special weather statement, Jan 2, 5:46 AM CST, 48 minutes before

Special Weather Statement
National Weather Service Fort Worth TX
546 AM CST MON JAN 2 2017

TXZ092-093-021230-
Grayson TX-Cooke TX-
546 AM CST MON JAN 2 2017

...SIGNIFICANT WEATHER ADVISORY FOR GRAYSON AND EASTERN COOKE
COUNTIES UNTIL 630 AM CST...

At 546 AM CST, Doppler radar was tracking a strong thunderstorm near
Collinsville, or 10 miles south of Whitesboro, moving northeast at 35
mph.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include...
Sherman, Denison, Gainesville, Whitesboro, Van Alstyne, Howe,
Pottsboro, Collinsville, Whitewright, Gunter, Bells, Tom Bean,
Callisburg, Knollwood, Dorchester, Lake Kiowa, Eisenhower State Park,
Ray Roberts Park Johnson Branch, southern Lake Texoma and Southmayd.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm. Seek
a safe shelter inside a building or vehicle.

&&

LAT...LON 3387 9688 3387 9680 3383 9677 3384 9669
      3392 9667 3390 9659 3384 9662 3378 9643
      3373 9638 3340 9639 3342 9709 3385 9725
      3385 9717 3376 9719 3372 9711 3384 9707
      3383 9694 3396 9692
TIME...MOT...LOC 1146Z 233DEG 30KT 3351 9691

30

Local storm report, Jan 2, 5:55 AM CST, 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
555 AM CST MON JAN 02 2017

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

0550 AM     TSTM WND DMG     SEAGOVILLE              32.63N  96.53W
01/02/2017                   DALLAS             TX   TRAINED SPOTTER

            POWER POLES BLOWN DOWN ON HIGHWAY 175 IN SEAGOVILLE.
            ESTIMATED 65 MPH WIND GUSTS

Local storm report, Jan 2, 6:07 AM CST, 27 minutes before

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Local storm report, Jan 2, 6:14 AM CST, 20 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
Jan 2, 2:19 AM CST	Special Weather Statement	FWD	Mills	26 min
Jan 2, 2:40 AM CST	Special Weather Statement	FWD	Comanche, Hamilton, Mills	35 min
Jan 2, 2:53 AM CST	Severe Thunderstorm Warning	FWD	Comanche, Erath, Hamilton	67 min
Jan 2, 3:21 AM CST	Special Weather Statement	FWD	Coryell, Lampasas	39 min
Jan 2, 3:34 AM CST	Severe Thunderstorm Warning	FWD	Bell, Bosque, Coryell, Erath, Hamilton, Lampasas and 2 more	56 min
Jan 2, 4:02 AM CST	Special Weather Statement	FWD	Hood, Parker	28 min
Jan 2, 4:21 AM CST	Severe Thunderstorm Warning	FWD	Bosque, Hill, Hood, Johnson, Somervell	54 min
Jan 2, 4:28 AM CST	Severe Thunderstorm Warning	FWD	Falls, Hill, Limestone, McLennan	62 min
Jan 2, 4:32 AM CST	Special Weather Statement	FWD	Falls, Milam	58 min
Jan 2, 4:34 AM CST	Special Weather Statement	FWD	Tarrant	41 min
Jan 2, 4:56 AM CST	Severe Thunderstorm Warning	FWD	Ellis, Navarro	64 min
Jan 2, 5:04 AM CST	Special Weather Statement	FWD	Dallas	41 min
Jan 2, 5:22 AM CST	Severe Thunderstorm Warning	FWD	Collin, Dallas, Denton, Kaufman, Rockwall	68 min
Jan 2, 5:28 AM CST	Severe Thunderstorm Warning	FWD	Freestone, Leon, Limestone, Robertson	62 min
Jan 2, 5:34 AM CST	Severe Thunderstorm Warning	FWD	Henderson, Kaufman	56 min
Jan 2, 5:46 AM CST	Special Weather Statement	FWD	Grayson	44 min
Jan 2, 5:59 AM CST	Severe Thunderstorm Warning	FWD	Henderson, Hunt, Rains, Van Zandt	61 min
Jan 2, 6:09 AM CST	Severe Thunderstorm Warning	FWD	Anderson	51 min
Jan 2, 6:38 AM CST	Special Weather Statement	FWD	Fannin	37 min

Nearby

Severe Thunderstorm Warnings in Texas, 2017 Every severe thunderstorm warning in 2017

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.