Alert archive / Texas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 58, NWS Fort Worth, TX

March 27, 2017Robertson County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Mar 27, 2017, 1:58 AM CDT for Robertson County, Texas. It was in force for 32 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: Mar 27, 2017, 1:58 AM CDT (06:58 UTC)
Expired: Mar 27, 2017, 2:30 AM CDT
In force: 32 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Robertson County, TX

The radar

The Ft Hood radar (KGRK), 90 km from the middle of the area, began a volume at 06:59 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, 7.0 hours before the alert went out and 214 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: 892 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 1866 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 184 m²/s²
0-3 km storm-relative helicity: 259 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 12.6

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 Mar 27, 12:53 AM CDT, 1 hour 5 minutes earlier.

Area forecast discussion, Mar 27, 12:53 AM CDT, 1 hour 5 minutes before

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Hazardous weather outlook, Mar 26, 9:36 PM CDT, 4 hours 22 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Fort Worth TX
936 PM CDT Sun Mar 26 2017

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-280245-
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-
936 PM CDT Sun Mar 26 2017

This Hazardous Weather Outlook is for North and Central Texas.

.DAY ONE...Tonight.
There is a chance for thunderstorms through the overnight hours east
of a Gainesville to Goldthwaite line. The main hazards are expected
to be large hail.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.
A few thunderstorms may linger Monday morning along and east of a
line from Paris to Athens to Cameron. Severe weather is not expected.

There are more thunderstorm chances Tuesday through Thursday as
another storm system affects the region. Severe weather and
flooding will be possible with this mid-week system, in particular
Tuesday night and Wednesday.

Another round of thunderstorms is expected next weekend.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is likely through midnight east of a Gainesville
to Rockwall to Lampasas line.

In the hours before

Special weather statement, Mar 26, 11:53 PM CDT, 2 hours 5 minutes before

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Local storm report, Mar 26, 11:58 PM CDT, 2 hours before

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Local storm report, Mar 26, 11:58 PM CDT, 2 hours before

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Special weather statement, Mar 27, 12:24 AM CDT, 1 hour 34 minutes before

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Local storm report, Mar 27, 12:25 AM CDT, 1 hour 33 minutes before

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Local storm report, Mar 27, 12:25 AM CDT, 1 hour 33 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
Mar 26, 7:11 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Erath, Hamilton, Johnson, Somervell	64 min
Mar 26, 7:18 PM CDT	Severe Thunderstorm Warning	FWD	Cooke	27 min
Mar 26, 7:21 PM CDT	Special Weather Statement	FWD	Mills	24 min
Mar 26, 7:21 PM CDT	Severe Thunderstorm Warning	FWD	Denton, Wise	54 min
Mar 26, 7:25 PM CDT	Tornado Warning	FWD	Denton	35 min
Mar 26, 7:41 PM CDT	Areal Flood Advisory	FWD	Bosque, Hamilton, Hill, Johnson	3 hr
Mar 26, 7:46 PM CDT	Tornado Warning	FWD	Cooke, Grayson	29 min
Mar 26, 7:47 PM CDT	Special Weather Statement	FWD	Hamilton	43 min
Mar 26, 7:55 PM CDT	Severe Thunderstorm Warning	FWD	Coryell, Hamilton, Lampasas, Mills	65 min
Mar 26, 7:57 PM CDT	Special Weather Statement	FWD	Johnson	33 min
Mar 26, 8:07 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Hill	53 min
Mar 26, 8:11 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Denton	79 min
Mar 26, 8:14 PM CDT	Severe Thunderstorm Warning	FWD	Cooke, Grayson	46 min
Mar 26, 8:23 PM CDT	Severe Thunderstorm Warning	FWD	Cooke, Denton	67 min
Mar 26, 8:43 PM CDT	Severe Thunderstorm Warning	FWD	Coryell, Hamilton, Lampasas, Mills	62 min
Mar 26, 8:56 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Hill, McLennan	64 min
Mar 26, 8:59 PM CDT	Severe Thunderstorm Warning	FWD	Grayson	76 min
Mar 26, 9:07 PM CDT	Special Weather Statement	FWD	Coryell	23 min
Mar 26, 9:20 PM CDT	Areal Flood Advisory	FWD	Hill	3 hr
Mar 26, 9:22 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Fannin, Hunt	53 min
Mar 26, 9:23 PM CDT	Severe Thunderstorm Warning	FWD	Coryell, Lampasas	67 min
Mar 26, 9:29 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Cooke, Denton	46 min
Mar 26, 9:38 PM CDT	Areal Flood Advisory	FWD	Coryell, Lampasas	3 hr
Mar 26, 9:47 PM CDT	Severe Thunderstorm Warning	FWD	Hill, Limestone, Navarro	58 min
Mar 26, 10:11 PM CDT	Severe Thunderstorm Warning	FWD	Delta, Fannin, Hunt, Lamar	79 min
Mar 26, 10:14 PM CDT	Severe Thunderstorm Warning	FWD	Fannin, Grayson	19 min
Mar 26, 10:23 PM CDT	Severe Thunderstorm Warning	FWD	Bell, Coryell, Falls, McLennan	52 min
Mar 26, 10:36 PM CDT	Special Weather Statement	FWD	Coryell	24 min
Mar 26, 10:44 PM CDT	Severe Thunderstorm Warning	FWD	Bell, Coryell	46 min
Mar 26, 10:53 PM CDT	Special Weather Statement	FWD	Fannin	52 min
Mar 26, 11:16 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Fannin, Hunt	32 min
Mar 26, 11:29 PM CDT	Severe Thunderstorm Warning	FWD	Bell, Falls, Milam	61 min
Mar 26, 11:53 PM CDT	Special Weather Statement	FWD	Delta	37 min
Mar 27, 12:22 AM CDT	Severe Thunderstorm Warning	FWD	Falls, Milam, Robertson	53 min
Mar 27, 12:24 AM CDT	Special Weather Statement	FWD	Delta	36 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.