Alert archive / Texas / Tornado Warnings in 2021

Tornado Warning 18, NWS Fort Worth, TX

May 16, 2021Ellis County, Johnson County, Texas

NWS Fort Worth, TX issued this tornado warning at May 16, 2021, 1:37 PM CDT for Ellis County, Johnson County, Texas. It was in force for 38 min. 2 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
May 16, 2021, 1:37 PM CDT (18:37 UTC)
Expired
May 16, 2021, 2:15 PM CDT
In force
38 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Ellis County, TX, Johnson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 41 km from the middle of the area, began a volume at 18:40 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

TimeReportWhereRemark
May 16, 1:42 PM CDTTORNADO5 E Grandview, TX5/16 HILL & ELLIS COUNTIES TORNADO - A STORM SPOTTER TRACKED AND RECORDED A TORNADO FROM EXTREME NORTHEASTERN HILL COUNTY INTO ELLIS COUNTY. SOME TREE LEAVES AND SMALL BRANCHES WERE REPORTEDLY LOFTED INTO THE TORNADO CIRCULATION. THE TORNADO DISSIPATED BEFORE
May 16, 2:08 PM CDTTORNADO2 Ese Maypearl, TX5/16 ELLIS COUNTY TORNADO NEAR MAYPEARL- VIDEO SHOWS A BRIEF TORNADO TRACKING ACROSS RURAL LAND NEAR THE INTERSECTION OF OLD MAYPEARL RD AND GREATHOUSE RD. NO DAMAGE WAS REPORTED WITH THIS TORNADO.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 6.6 hours before the alert went out and 311 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 2021-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 80 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 12:00Z on 2021-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 square meters per square second.193958Sfc1 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
80 J/kg
Mixed-layer CIN
-171 J/kg
Mixed-layer LCL
899 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
-6 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

024 
WFUS54 KFWD 161837
TORFWD
TXC139-251-161915-
/O.NEW.KFWD.TO.W.0018.210516T1837Z-210516T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Fort Worth TX
137 PM CDT Sun May 16 2021

The National Weather Service in Fort Worth has issued a

* Tornado Warning for...
  Southeastern Johnson County in north central Texas... 
  West central Ellis County in north central Texas...

* Until 215 PM CDT.
    
* At 136 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Grandview, or 12 miles southeast of Alvarado,
  moving northeast at 20 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Maypearl around 155 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 3221 9705 3222 9706 3226 9709 3225 9716
      3235 9714 3237 9700 3230 9691
TIME...MOT...LOC 1836Z 215DEG 15KT 3225 9709 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

92
2 follow-up statements
100 
WWUS54 KFWD 161856
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
156 PM CDT Sun May 16 2021

TXC251-161905-
/O.CAN.KFWD.TO.W.0018.000000T0000Z-210516T1915Z/
Johnson TX-
156 PM CDT Sun May 16 2021

...THE TORNADO WARNING FOR SOUTHEASTERN JOHNSON COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3224 9706 3229 9708 3235 9709 3236 9707
      3237 9700 3230 9691
TIME...MOT...LOC 1855Z 224DEG 13KT 3230 9703 

$$

TXC139-161915-
/O.CON.KFWD.TO.W.0018.000000T0000Z-210516T1915Z/
Ellis TX-
156 PM CDT Sun May 16 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 PM CDT FOR WEST
CENTRAL ELLIS COUNTY...
    
At 155 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Maypearl, or 12 miles southwest of Waxahachie,
moving northeast at 15 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Maypearl around 200 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter now!  Get to an
interior room on the lowest floor of a sturdy building and avoid
windows.

&&

LAT...LON 3224 9706 3229 9708 3235 9709 3236 9707
      3237 9700 3230 9691
TIME...MOT...LOC 1855Z 224DEG 13KT 3230 9703 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

92
882 
WWUS54 KFWD 161919
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
219 PM CDT Sun May 16 2021

TXC139-161929-
/O.EXP.KFWD.TO.W.0018.000000T0000Z-210516T1915Z/
Ellis TX-
219 PM CDT Sun May 16 2021

...THE TORNADO WARNING FOR WEST CENTRAL ELLIS COUNTY HAS EXPIRED...
                
The rotation associated with the storm that prompted the Tornado
Warning has weakened, and no longer appears capable of producing a
tornado. Therefore the Tornado Warning has been allowed to expire.

LAT...LON 3224 9706 3229 9708 3235 9709 3236 9707
      3237 9700 3230 9691
TIME...MOT...LOC 1919Z 215DEG 15KT 3238 9696 

$$

92

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 3:34 AM CDTFlash Flood WatchFWDAnderson, Bell, Bosque, Collin, Comanche, Cooke and 40 more4 days
May 16, 8:01 AM CDTRiver Flood WarningFWDHunt, Kaufman, Rockwall4 days
May 16, 9:11 AM CDTRiver Flood WarningFWDDallas, Denton24 hr
May 16, 9:11 AM CDTRiver Flood WarningFWDDallas59 hr
May 16, 12:14 PM CDTAreal Flood AdvisoryFWDDallas2 hr
May 16, 12:59 PM CDTRiver Flood WarningFWDDallas9 hr
May 16, 1:17 PM CDTTornado WarningFWDHill28 min
May 16, 1:22 PM CDTFlash Flood WarningFWDDallas5 hr
May 16, 2:01 PM CDTRiver Flood WarningFWDHunt4 days
May 16, 2:08 PM CDTTornado WarningFWDDallas18 min
May 16, 2:40 PM CDTRiver Flood WarningFWDCollin32 hr
May 16, 2:40 PM CDTRiver Flood WarningFWDEllis, Navarro3 days
May 16, 2:45 PM CDTAreal Flood AdvisoryFWDCollin3 hr
May 16, 4:27 PM CDTAreal Flood WarningFWDEllis8 hr
May 16, 5:17 PM CDTAreal Flood AdvisoryFWDErath, Hood, Somervell3 hr
May 16, 5:57 PM CDTSpecial Weather StatementFWDMontague33 min
May 16, 6:21 PM CDTSevere Thunderstorm WarningFWDCooke, Grayson, Montague69 min

Nearby

Tornado Warnings in Texas, 2021Every tornado warning in 2021Tornadoes 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.