Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 13, NWS Fort Worth, TX
NWS Fort Worth, TX issued this severe thunderstorm warning at Mar 17, 2021, 4:38 AM CDT for 5 counties in Texas. It was in force for 82 min. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 17, 2021, 4:38 AM CDT (09:38 UTC)
- Expired
- Mar 17, 2021, 6:00 AM CDT
- In force
- 82 min
- Issued by
- NWS Fort Worth, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 65.0 mph
Counties Dallas County, TX, Ellis County, TX, Hill County, TX, Johnson County, TX, Tarrant County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 57 km from the middle of the area, began a volume at 09:41 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 17, 4:56 AM CDT | TSTM WND GST 66 | 3 Ssw Grand Prairie, TX | |
| Mar 17, 5:01 AM CDT | TSTM WND GST 59 | 3 Se Arlington, TX | ASOS STATION KGKY ARLINGTON MUNICIPAL AIRPORT. |
| Mar 17, 5:05 AM CDT | HAIL 1 | Coppell, TX | REPORT FROM MPING: QUARTER (1.00 IN.). |
| Mar 17, 5:06 AM CDT | TSTM WND GST 61 | 4 Ne Duncanville, TX | CORRECTS PREVIOUS TSTM WND GST REPORT FROM 4 NE DUNCANVILLE AT KRBD ASOS. 53 KNOTS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 16, 10:26 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 9.6 hours before the alert went out and 69 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.
- Mixed-layer CAPE
- 1277 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 1084 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 158 m²/s²
- 0-3 km storm-relative helicity
- 237 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 2.5
The text
As transmitted.
925
WUUS54 KFWD 170938
SVRFWD
TXC113-139-217-251-439-171100-
/O.NEW.KFWD.SV.W.0013.210317T0938Z-210317T1100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Fort Worth TX
438 AM CDT Wed Mar 17 2021
The National Weather Service in Fort Worth has issued a
* Severe Thunderstorm Warning for...
Northeastern Johnson County in north central Texas...
Eastern Tarrant County in north central Texas...
Northeastern Hill County in central Texas...
Ellis County in north central Texas...
Dallas County in north central Texas...
* Until 600 AM CDT.
* At 437 AM CDT, severe thunderstorms were located along a line
extending from near Benbrook to Itasca, moving northeast at 50 mph.
HAZARD...65 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Dallas, Fort Worth, Arlington, Garland, Irving, Grand Prairie,
Mesquite, Carrollton, Richardson, Flower Mound, Mansfield, Rowlett,
Euless, Desoto, Bedford, Grapevine, Cedar Hill, Haltom City, Wylie
and Keller.
This includes the following highways...
Interstate 35W between mile markers 6 and 51.
Interstate 35E between mile markers 373 and 445.
Interstate 20 between mile markers 434 and 484.
Interstate 30 between mile markers 15 and 63.
Interstate 45 between mile markers 244 and 284.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection get inside a sturdy structure and stay away from
windows.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning can kill.
&&
LAT...LON 3205 9694 3208 9708 3255 9745 3299 9717
3298 9652 3254 9653 3253 9651 3245 9650
3241 9644 3235 9645 3233 9643 3233 9638
TIME...MOT...LOC 0937Z 246DEG 42KT 3249 9744 3216 9715
HAIL...1.00IN
WIND...65MPH
$$
Stalley3 follow-up statements
976
WWUS54 KFWD 171001
SVSFWD
Severe Weather Statement
National Weather Service Fort Worth TX
501 AM CDT Wed Mar 17 2021
TXC113-139-217-251-439-171100-
/O.CON.KFWD.SV.W.0013.000000T0000Z-210317T1100Z/
Johnson TX-Tarrant TX-Hill TX-Ellis TX-Dallas TX-
501 AM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 AM CDT
FOR NORTHEASTERN JOHNSON...EASTERN TARRANT...NORTHEASTERN HILL...
ELLIS AND DALLAS COUNTIES...
At 459 AM CDT, severe thunderstorms were located along a line
extending from Arlington to Waxahachie, moving east at 55 mph.
HAZARD...70 mph wind gusts and nickel size hail.
SOURCE...Radar indicated. Winds over 60 mph were measured in
Arlington and Cleburne.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Dallas, Fort Worth, Arlington, Garland, Irving, Grand Prairie,
Mesquite, Carrollton, Richardson, Flower Mound, Mansfield, Rowlett,
Euless, Desoto, Bedford, Grapevine, Cedar Hill, Haltom City, Wylie
and Keller.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection stay inside a sturdy structure and keep away from
windows.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately.
&&
LAT...LON 3205 9694 3208 9708 3255 9745 3299 9717
3298 9652 3254 9653 3253 9651 3245 9650
3241 9644 3235 9645 3233 9643 3233 9638
TIME...MOT...LOC 0959Z 249DEG 50KT 3269 9713 3240 9685
HAIL...0.88IN
WIND...70MPH
$$
Stalley073
WWUS54 KFWD 171014
SVSFWD
Severe Weather Statement
National Weather Service Fort Worth TX
514 AM CDT Wed Mar 17 2021
TXC217-251-439-171023-
/O.CAN.KFWD.SV.W.0013.000000T0000Z-210317T1100Z/
Johnson TX-Tarrant TX-Hill TX-
514 AM CDT Wed Mar 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN JOHNSON...EASTERN
TARRANT AND NORTHEASTERN HILL COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 AM CDT for
central and north central Texas.
LAT...LON 3205 9694 3254 9704 3299 9703 3298 9652
3254 9653 3253 9651 3245 9650 3241 9644
3235 9645 3233 9643 3233 9638
TIME...MOT...LOC 1013Z 241DEG 51KT 3285 9680 3253 9666
$$
TXC113-139-171100-
/O.CON.KFWD.SV.W.0013.000000T0000Z-210317T1100Z/
Ellis TX-Dallas TX-
514 AM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 AM CDT
FOR ELLIS AND DALLAS COUNTIES...
At 513 AM CDT, severe thunderstorms were located along a line
extending from University Park to Ferris, moving northeast at 60 mph.
HAZARD...70 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Dallas, Garland, Irving, Grand Prairie, Mesquite, Carrollton,
Richardson, Rowlett, Desoto, Grapevine, Cedar Hill, Wylie, Coppell,
Duncanville, Lancaster, Waxahachie, Farmers Branch, Balch Springs,
University Park and Sachse.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection stay inside a sturdy structure and keep away from
windows.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately.
&&
LAT...LON 3205 9694 3254 9704 3299 9703 3298 9652
3254 9653 3253 9651 3245 9650 3241 9644
3235 9645 3233 9643 3233 9638
TIME...MOT...LOC 1013Z 241DEG 51KT 3285 9680 3253 9666
HAIL...0.88IN
WIND...70MPH
$$
Stalley956
WWUS54 KFWD 171050
SVSFWD
Severe Weather Statement
National Weather Service Fort Worth TX
550 AM CDT Wed Mar 17 2021
TXC113-139-171100-
/O.EXP.KFWD.SV.W.0013.000000T0000Z-210317T1100Z/
Ellis TX-Dallas TX-
550 AM CDT Wed Mar 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR ELLIS AND DALLAS COUNTIES WILL
EXPIRE AT 600 AM CDT...
The storms which prompted the warning have moved out of the area.
Therefore the warning will be allowed to expire. However gusty winds
are still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 1000 AM CDT for
central and north central Texas.
LAT...LON 3205 9694 3254 9704 3299 9703 3298 9652
3254 9653 3253 9651 3245 9650 3241 9644
3235 9645 3233 9643 3233 9638
TIME...MOT...LOC 1050Z 246DEG 42KT 3302 9635 3270 9621
$$
StalleyThe office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 2:26 AM CDT | Severe Thunderstorm Warning | FWD | Comanche, Eastland, Erath, Hamilton, Mills | 79 min |
| Mar 17, 3:14 AM CDT | Special Weather Statement | FWD | Jack | 46 min |
| Mar 17, 3:38 AM CDT | Severe Thunderstorm Warning | FWD | Bosque, Erath, Hill, Hood, Johnson, Somervell | 67 min |
| Mar 17, 3:40 AM CDT | Severe Thunderstorm Warning | FWD | Denton, Parker, Tarrant, Wise | 65 min |
| Mar 17, 4:57 AM CDT | Severe Thunderstorm Warning | FWD | Falls, Freestone, Hill, Limestone, McLennan, Navarro | 48 min |
| Mar 17, 5:04 AM CDT | Areal Flood Advisory | FWD | Dallas, Tarrant | 116 min |
| Mar 17, 5:19 AM CDT | Severe Thunderstorm Warning | FWD | Collin, Hunt, Kaufman, Rockwall, Van Zandt | 56 min |
| Mar 17, 6:06 AM CDT | Severe Thunderstorm Warning | FWD | Delta, Hopkins, Hunt, Rains, Van Zandt | 54 min |
| Mar 17, 6:22 AM CDT | Special Weather Statement | FWD | Anderson, Freestone, Henderson | 53 min |
| Mar 17, 6:40 AM CDT | Special Weather Statement | FWD | Bell | 50 min |
| Mar 17, 6:43 AM CDT | Severe Thunderstorm Warning | FWD | Bell | 21 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.