Alert archive / Texas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 18, NWS Fort Worth, TX

March 4, 2020Milam County, Robertson County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Mar 4, 2020, 8:41 AM CST for Milam County, Robertson County, Texas. It was in force for 44 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 4, 2020, 8:41 AM CST (14:41 UTC)
Expired
Mar 4, 2020, 9:25 AM CST
In force
44 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Milam County, TX, Robertson County, TX

The watch it was issued in

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

IssuedProductOfficeLasted
Mar 4, 7:33 AM CSTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 2.7 hours before the alert went out and 333 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, Shreveport, LA at 12:00Z on 2020-03-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Shreveport, LA at 12:00Z on 2020-03-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -68 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
804 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
-68 m²/s²
0-3 km storm-relative helicity
290 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

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 4, 8:37 AM CST, 4 minutes earlier.

Area forecast discussion, Mar 4, 8:37 AM CST, 4 minutes before
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Hazardous weather outlook, Mar 4, 3:22 AM CST, 5 hours 19 minutes before
Hazardous Weather Outlook
National Weather Service Fort Worth TX
322 AM CST Wed Mar 4 2020

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-050930-
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-
322 AM CST Wed Mar 4 2020

This Hazardous Weather Outlook is for North and Central Texas.

.DAY ONE...Today and Tonight.
Scattered thunderstorms will continue this morning across the entire
region. Some storms may become severe across Central Texas with the
primary hazard being large hail. There is a conditional risk for
damaging winds and a tornado or two. Locally heavy rainfall may also
produce isolated flooding through this evening.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Isolated thunderstorms are possible across the eastern portions of
North Texas on Monday.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is possible through the morning hours today across
Central Texas.

In the hours before

Special weather statement, Mar 4, 5:44 AM CST, 2 hours 57 minutes before
Special Weather Statement
National Weather Service Fort Worth TX
544 AM CST Wed Mar 4 2020

TXZ159-160-041215-
Falls TX-McLennan TX-
544 AM CST Wed Mar 4 2020

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN MCLENNAN AND NORTHWESTERN
FALLS COUNTIES UNTIL 615 AM CST...

At 542 AM CST, Doppler radar was tracking a strong thunderstorm over
Golinda, or near Robinson, moving northeast at 35 mph.

Penny size hail will be possible with this storm.

 Locations impacted include...

Hewitt, Robinson, Bellmead, Lacy-Lakeview, West, Beverly Hills,
Lorena, Bruceville-Eddy, Riesel, Golinda, Hallsburg, Northcrest,
Leroy and Ross.

LAT...LON 3132 9724 3184 9709 3186 9704 3158 9684
      3132 9704
TIME...MOT...LOC 1142Z 204DEG 31KT 3138 9707

Bonnette
Special weather statement, Mar 4, 6:33 AM CST, 2 hours 8 minutes before
Special Weather Statement
National Weather Service Fort Worth TX
633 AM CST Wed Mar 4 2020

TXZ145-146-161-041300-
Limestone TX-Hill TX-Navarro TX-
633 AM CST Wed Mar 4 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HILL...NORTHWESTERN
LIMESTONE AND SOUTHWESTERN NAVARRO COUNTIES UNTIL 700 AM CST...

At 633 AM CST, Doppler radar was tracking a strong thunderstorm near
Coolidge, or 16 miles west of Mexia, moving northeast at 30 mph.

Penny size hail will be possible with this storm.

 Locations impacted include...
Hubbard, Coolidge, Dawson, Mount Calm and Richland.

LAT...LON 3165 9671 3176 9688 3208 9667 3192 9641
TIME...MOT...LOC 1233Z 216DEG 24KT 3177 9675

79
Special weather statement, Mar 4, 6:49 AM CST, 1 hour 52 minutes before
Special Weather Statement
National Weather Service Fort Worth TX
649 AM CST Wed Mar 4 2020

TXZ121-134-041315-
Ellis TX-Kaufman TX-
649 AM CST Wed Mar 4 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN KAUFMAN AND
NORTHEASTERN ELLIS COUNTIES UNTIL 715 AM CST...

At 648 AM CST, Doppler radar was tracking a strong thunderstorm over
Alma, or near Ennis, moving northeast at 30 mph.

Penny size hail will be possible with this storm.

 Locations impacted include...
Ennis, Grays Prairie, Alma, Cottonwood and Rosser.

LAT...LON 3246 9627 3236 9640 3236 9645 3235 9645
      3233 9643 3226 9652 3225 9653 3232 9666
      3255 9650
TIME...MOT...LOC 1248Z 213DEG 25KT 3232 9656

79
Special weather statement, Mar 4, 6:51 AM CST, 1 hour 50 minutes before
Special Weather Statement
National Weather Service Fort Worth TX
651 AM CST Wed Mar 4 2020

TXZ121-134-041315-
Ellis TX-Kaufman TX-
651 AM CST Wed Mar 4 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN KAUFMAN AND
NORTHEASTERN ELLIS COUNTIES UNTIL 715 AM CST...

At 648 AM CST, Doppler radar was tracking a strong thunderstorm over
Alma, or near Ennis, moving northeast at 30 mph.

Penny size hail will be possible with this storm.

 Locations impacted include...
Ennis, Grays Prairie, Alma, Cottonwood and Rosser.

LAT...LON 3246 9627 3236 9640 3236 9645 3235 9645
      3233 9643 3226 9652 3225 9653 3232 9666
      3255 9650
TIME...MOT...LOC 1248Z 213DEG 25KT 3232 9656

79
Special weather statement, Mar 4, 7:24 AM CST, 1 hour 17 minutes before
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Special weather statement, Mar 4, 7:55 AM CST, 46 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Mar 4, 5:44 AM CSTSpecial Weather StatementFWDMcLennan31 min
Mar 4, 6:33 AM CSTSpecial Weather StatementFWDNavarro27 min
Mar 4, 6:37 AM CSTSevere Thunderstorm WarningFWDLimestone, Navarro33 min
Mar 4, 6:49 AM CSTSpecial Weather StatementFWDKaufman26 min
Mar 4, 6:51 AM CSTSpecial Weather StatementFWDKaufman24 min
Mar 4, 7:24 AM CSTSpecial Weather StatementFWDFalls36 min
Mar 4, 7:47 AM CSTSevere Thunderstorm WarningFWDMilam58 min
Mar 4, 7:55 AM CSTSpecial Weather StatementFWDFalls35 min
Mar 4, 8:09 AM CSTSevere Thunderstorm WarningFWDFalls, Limestone, Robertson54 min
Mar 4, 9:15 AM CSTSpecial Weather StatementFWDLeon30 min
Mar 4, 9:46 AM CSTSpecial Weather StatementFWDLeon29 min

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.