Alert archive / Texas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 24, NWS Fort Worth, TX

March 18, 2020Eastland County, Stephens County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Mar 18, 2020, 6:59 PM CDT for Eastland County, Stephens County, Texas. It was in force for 18 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 18, 2020, 6:59 PM CDT (23:59 UTC)
Expired
Mar 18, 2020, 7:17 PM CDT
In force
18 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Eastland County, TX, Stephens County, TX

The radar

The Dyess AFB radar (KDYX), 39 km from the middle of the area, began a volume at 00:05 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.

IssuedProductOfficeLasted
Mar 18, 4:42 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 12.0 hours before the alert went out and 148 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 12:00Z on 2020-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 54 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 12:00Z on 2020-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 187 square meters per square second.19395878Sfc1 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
54 J/kg
Mixed-layer CIN
-102 J/kg
Mixed-layer LCL
823 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
187 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 18, 3:21 PM CDT, 3 hours 38 minutes earlier.

Area forecast discussion, Mar 18, 3:21 PM CDT, 3 hours 38 minutes before
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Hazardous weather outlook, Mar 18, 1:18 PM CDT, 5 hours 41 minutes before
Hazardous Weather Outlook
National Weather Service Fort Worth TX
118 PM CDT Wed Mar 18 2020

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-191200-
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-
118 PM CDT Wed Mar 18 2020

This Hazardous Weather Outlook is for North and Central Texas.

.DAY ONE...This Afternoon and Tonight.
Isolated to scattered thunderstorms are possible late this afternoon
and early evening mainly north of I-20 and west of I-35 and 35 West.
Damaging winds, large hail, and isolated tornadoes are possible with
these storms, especially with discrete storms that develop very late
this afternoon through the evening hours.

Another round of thunderstorms, more in the form of a line or
complex, will move into North Texas around or just after midnight,
then move from west to east across especially those areas along and
north of I-20. Some storms may be severe with damaging winds being
the main hazard. Heavy rainfall over already saturated soils will
likely lead to an increasing flash flood threat through daybreak
Thursday and primarily north of I-20.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Rain and thunderstorms will linger across parts of East Texas on
Thursday, especially during the morning. A few thunderstorms could
be strong to severe and contain heavy rainfall that may lead to
additional flooding or flash flooding.

.SPOTTER INFORMATION STATEMENT...
Spotter activation may be requested across parts of North Texas
beginning late this afternoon and continuing into tonight. More
limited activation can't be ruled out further south across Central
Texas.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 17, 7:51 PM CDTSpecial Weather StatementFWDYoung39 min
Mar 17, 9:05 PM CDTSevere Thunderstorm WarningFWDStephens, Young55 min
Mar 17, 9:26 PM CDTRiver Flood WarningFWDDallas37 hr
Mar 17, 9:26 PM CDTRiver Flood WarningFWDHenderson, Navarro21 days
Mar 17, 10:46 PM CDTSevere Thunderstorm WarningFWDJack, Palo Pinto, Parker59 min
Mar 17, 11:27 PM CDTSpecial Weather StatementFWDWise33 min
Mar 17, 11:44 PM CDTAreal Flood AdvisoryFWDPalo Pinto5 hr
Mar 18, 12:12 AM CDTSpecial Weather StatementFWDWise33 min
Mar 18, 12:36 AM CDTAreal Flood AdvisoryFWDStephens4 hr
Mar 18, 12:58 AM CDTSpecial Weather StatementFWDDenton32 min
Mar 18, 1:14 AM CDTAreal Flood AdvisoryFWDDenton, Parker, Tarrant, Wise3 hr
Mar 18, 1:33 AM CDTSpecial Weather StatementFWDStephens27 min
Mar 18, 1:38 AM CDTSpecial Weather StatementFWDGrayson37 min
Mar 18, 2:13 AM CDTSpecial Weather StatementFWDPalo Pinto32 min
Mar 18, 2:17 AM CDTSpecial Weather StatementFWDFannin43 min
Mar 18, 2:24 AM CDTFlash Flood WarningFWDPalo Pinto3 hr
Mar 18, 2:46 AM CDTSpecial Weather StatementFWDHood, Parker44 min
Mar 18, 2:50 AM CDTAreal Flood AdvisoryFWDJack, Wise3 hr
Mar 18, 3:03 AM CDTAreal Flood AdvisoryFWDParker3 hr
Mar 18, 3:11 AM CDTAreal Flood AdvisoryFWDCollin, Denton3 hr
Mar 18, 3:50 AM CDTFlash Flood WarningFWDDenton3 hr
Mar 18, 4:01 AM CDTAreal Flood AdvisoryFWDTarrant3 hr
Mar 18, 4:13 AM CDTRiver Flood WarningFWDWise9 days
Mar 18, 4:20 AM CDTFlash Flood WarningFWDHood, Johnson, Parker, Tarrant3 hr
Mar 18, 4:38 AM CDTFlash Flood WarningFWDCollin2 hr
Mar 18, 4:51 AM CDTAreal Flood AdvisoryFWDDallas3 hr
Mar 18, 4:52 AM CDTSpecial Weather StatementFWDEllis, Johnson38 min
Mar 18, 4:53 AM CDTAreal Flood WarningFWDPalo Pinto3 hr
Mar 18, 5:04 AM CDTRiver Flood WarningFWDPalo Pinto32 hr
Mar 18, 5:07 AM CDTRiver Flood WarningFWDCollin64 hr
Mar 18, 5:07 AM CDTRiver Flood WarningFWDCollin39 hr
Mar 18, 5:09 AM CDTAreal Flood AdvisoryFWDHunt3 hr
Mar 18, 5:28 AM CDTFlash Flood WarningFWDDallas3 hr
Mar 18, 5:37 AM CDTRiver Flood WarningFWDDallas6 hr
Mar 18, 5:56 AM CDTAreal Flood AdvisoryFWDEllis, Johnson3 hr
Mar 18, 6:08 AM CDTSpecial Weather StatementFWDKaufman37 min
Mar 18, 6:41 AM CDTAreal Flood WarningFWDCollin, Denton3 hr
Mar 18, 7:21 AM CDTAreal Flood WarningFWDHood, Johnson, Parker, Tarrant3 hr
Mar 18, 7:46 AM CDTAreal Flood AdvisoryFWDCollin, Fannin, Grayson3 hr
Mar 18, 8:19 AM CDTAreal Flood WarningFWDCollin, Dallas, Rockwall3 hr
Mar 18, 8:40 AM CDTAreal Flood AdvisoryFWDCooke, Montague2 hr
Mar 18, 8:48 AM CDTAreal Flood AdvisoryFWDDelta, Hopkins, Lamar, Rains, Van Zandt117 min
Mar 18, 9:15 AM CDTRiver Flood WarningFWDWise49 hr
Mar 18, 9:15 AM CDTRiver Flood WarningFWDDallas39 hr
Mar 18, 9:23 AM CDTFlash Flood WarningFWDCooke, Grayson97 min
Mar 18, 9:56 AM CDTRiver Flood WarningFWDEllis, Kaufman4 days
Mar 18, 10:06 AM CDTRiver Flood WarningFWDDelta, Lamar4 hr
Mar 18, 5:58 PM CDTSevere Thunderstorm WarningFWDEastland62 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; radar from the NEXRAD Level II archive.