Alert archive / Texas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 126, NWS Fort Worth, TX

May 22, 2020Van Zandt County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at May 22, 2020, 7:29 PM CDT for Van Zandt County, Texas. It was in force for 16 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 22, 2020, 7:29 PM CDT (00:29 UTC)
Expired
May 22, 2020, 7:45 PM CDT
In force
16 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County Van Zandt County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 137 km from the middle of the area, began a volume at 00:31 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, 0.5 hours before the alert went out and 139 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 2020-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2660 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 2020-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 square meters per square second.1939Sfc1 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
2660 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1650 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
0.5
Supercell composite
10.6

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 May 22, 3:03 PM CDT, 4 hours 26 minutes earlier.

Area forecast discussion, May 22, 3:03 PM CDT, 4 hours 26 minutes before
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Hazardous weather outlook, May 22, 3:03 PM CDT, 4 hours 26 minutes before
Hazardous Weather Outlook
National Weather Service Fort Worth TX
303 PM CDT Fri May 22 2020

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-231230-
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-
303 PM CDT Fri May 22 2020

This Hazardous Weather Outlook is for North and Central Texas.

.DAY ONE...This Afternoon and Tonight.
Thunderstorms are expected to develop near the Red River and Big
County this afternoon. Large hail, damaging winds, and isolated
tornadoes are possible in these regions.

Shortly after developing, these storms should form into a complex
that moves south and southeast with a threat for damaging winds and
hail. The main threat for severe weather should remain along and
north of I-20, although a damaging wind threat exists as far south as
a line extending from Killeen to Waco to Canton.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Thunderstorms will be possible each day as an unsettled weather
pattern prevails over the region. Heavy rainfall will be the greatest
concern, with flooding issues arising as early as Sunday and Monday.
Excessive rain may result in the flooding of creeks and streams.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is possible this afternoon and tonight, generally
along and north of I-20.

In the hours before

Special weather statement, May 22, 7:08 PM CDT, 21 minutes before
Special Weather Statement
National Weather Service Fort Worth TX
708 PM CDT Fri May 22 2020

TXZ122-135-230045-
Van Zandt TX-Henderson TX-
708 PM CDT Fri May 22 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN VAN ZANDT AND
NORTHEASTERN HENDERSON COUNTIES UNTIL 745 PM CDT...

At 707 PM CDT, Doppler radar was tracking a strong thunderstorm near
Brownsboro, or 15 miles west of Tyler, moving north at 25 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

 Locations impacted include...
Chandler, Van, Brownsboro and Edom.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so closely monitor for additional
information or possible warnings from the National Weather Service.

&&

LAT...LON 3226 9547 3225 9547 3223 9549 3222 9549
      3221 9560 3249 9584 3254 9559 3248 9560
      3241 9551 3239 9550 3235 9545 3233 9546
      3229 9545
TIME...MOT...LOC 0007Z 170DEG 22KT 3233 9557

Barnes

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 7:08 PM CDTSpecial Weather StatementFWDHenderson37 min
May 22, 7:33 PM CDTSevere Thunderstorm WarningFWDMontague57 min
May 22, 8:26 PM CDTSpecial Weather StatementFWDRains64 min
May 22, 8:27 PM CDTTornado WarningFWDMontague48 min
May 22, 9:09 PM CDTSevere Thunderstorm WarningFWDJack, Montague, Wise66 min
May 22, 9:13 PM CDTTornado WarningFWDMontague47 min
May 22, 9:27 PM CDTSevere Thunderstorm WarningFWDJack, Young48 min
May 22, 9:35 PM CDTFlash Flood WarningFWDMontague6 hr
May 22, 10:09 PM CDTSevere Thunderstorm WarningFWDCooke, Denton, Montague, Wise81 min
May 22, 10:21 PM CDTSevere Thunderstorm WarningFWDJack39 min
May 22, 10:48 PM CDTFlash Flood WarningFWDJack, Wise5 hr
May 22, 10:55 PM CDTSevere Thunderstorm WarningFWDJack, Wise35 min
May 22, 11:06 PM CDTAreal Flood AdvisoryFWDCooke, Denton3 hr
May 22, 11:17 PM CDTSevere Thunderstorm WarningFWDCooke, Grayson58 min
May 22, 11:26 PM CDTSevere Thunderstorm WarningFWDCooke, Montague, Wise64 min
May 22, 11:27 PM CDTSevere Thunderstorm WarningFWDJack, Young63 min
May 22, 11:49 PM CDTSevere Thunderstorm WarningFWDDenton, Wise56 min
May 23, 12:05 AM CDTRiver Flood WarningFWDDenton4 days
May 23, 12:10 AM CDTSevere Thunderstorm WarningFWDCooke, Grayson80 min
May 23, 12:23 AM CDTSevere Thunderstorm WarningFWDJack, Palo Pinto, Parker, Wise82 min
May 23, 12:32 AM CDTSpecial Weather StatementFWDCollin58 min
May 23, 1:07 AM CDTSpecial Weather StatementFWDFannin23 min
May 23, 1:08 AM CDTRiver Flood WarningFWDDallas54 hr
May 23, 1:08 AM CDTRiver Flood WarningFWDDallas, Denton30 hr
May 23, 1:09 AM CDTSevere Thunderstorm WarningFWDJack, Palo Pinto, Young66 min
May 23, 1:20 AM CDTSpecial Weather StatementFWDFannin, Hunt, Rockwall25 min
May 23, 1:49 AM CDTAreal Flood AdvisoryFWDCollin, Dallas, Denton, Rockwall3 hr
May 23, 1:52 AM CDTSpecial Weather StatementFWDParker23 min
May 23, 2:11 AM CDTAreal Flood AdvisoryFWDDenton, Jack, Palo Pinto, Parker, Tarrant, Wise3 hr
May 23, 2:28 AM CDTSpecial Weather StatementFWDJack, Wise47 min
May 23, 2:47 AM CDTSpecial Weather StatementFWDHopkins43 min
May 23, 3:29 AM CDTAreal Flood WarningFWDJack, Montague, Wise4 hr
May 23, 3:36 AM CDTRiver Flood WarningFWDDallas4 hr
May 23, 3:55 AM CDTSpecial Weather StatementFWDJack35 min
May 23, 4:16 AM CDTRiver Flood WarningFWDWise42 hr
May 23, 4:38 AM CDTRiver Flood WarningFWDJack4 days
May 23, 8:35 AM CDTSpecial Weather StatementFWDWise25 min
May 23, 6:24 PM CDTRiver Flood WarningFWDWise28 hr
May 23, 6:24 PM CDTRiver Flood WarningFWDWise11 days

Nearby

Severe Thunderstorm Warnings in Texas, 2020Every severe thunderstorm warning in 2020

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.