Alert archive / Texas / Tornado Warnings in 2016

Tornado Warning 18, NWS Fort Worth, TX

April 21, 2016Comanche County, Erath County, Hamilton County, Texas

NWS Fort Worth, TX issued this tornado warning at Apr 21, 2016, 3:29 AM CDT for Comanche County, Erath County, Hamilton County, Texas. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 21, 2016, 3:29 AM CDT (08:29 UTC)
Expired
Apr 21, 2016, 4:00 AM CDT
In force
31 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Comanche County, TX, Erath County, TX, Hamilton County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 101 km from the middle of the area, began a volume at 08:31 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, 8.5 hours before the alert went out and 122 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 2016-04-21Temperature 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, Fort Worth, TX at 00:00Z on 2016-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1104 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

655 
WFUS54 KFWD 210829
TORFWD
TXC093-143-193-210900-
/O.NEW.KFWD.TO.W.0018.160421T0829Z-160421T0900Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
329 AM CDT THU APR 21 2016

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL COMANCHE COUNTY IN CENTRAL TEXAS...
  SOUTHERN ERATH COUNTY IN NORTH CENTRAL TEXAS...
  NORTH CENTRAL HAMILTON COUNTY IN CENTRAL TEXAS...

* UNTIL 400 AM CDT
    
* AT 328 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
  WAS LOCATED NEAR DUBLIN...MOVING EAST AT 35 MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL. 

  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...
  HICO AROUND 400 AM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR 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 3215 9842 3210 9790 3206 9792 3202 9800
      3196 9797 3171 9810 3195 9851
TIME...MOT...LOC 0828Z 290DEG 30KT 3201 9839 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

30
2 follow-up statements
370 
WWUS54 KFWD 210838
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
338 AM CDT THU APR 21 2016

TXC093-210847-
/O.CAN.KFWD.TO.W.0018.000000T0000Z-160421T0900Z/
COMANCHE TX-
338 AM CDT THU APR 21 2016

...THE TORNADO WARNING FOR EAST CENTRAL COMANCHE 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 3209 9835 3210 9790 3206 9792 3202 9800
      3196 9797 3183 9804 3189 9819 3198 9825
      3194 9832 3195 9834 3200 9837
TIME...MOT...LOC 0837Z 290DEG 30KT 3198 9830 

$$

TXC143-193-210900-
/O.CON.KFWD.TO.W.0018.000000T0000Z-160421T0900Z/
ERATH TX-HAMILTON TX-
338 AM CDT THU APR 21 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 AM CDT FOR
SOUTHEASTERN ERATH AND NORTH CENTRAL HAMILTON COUNTIES...
    
AT 337 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 7 MILES SOUTH OF DUBLIN...MOVING EAST AT 35 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL. 

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...
  HICO AROUND 400 AM CDT. 

LAT...LON 3209 9835 3210 9790 3206 9792 3202 9800
      3196 9797 3183 9804 3189 9819 3198 9825
      3194 9832 3195 9834 3200 9837
TIME...MOT...LOC 0837Z 290DEG 30KT 3198 9830 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

30
115 
WWUS54 KFWD 210854
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
354 AM CDT THU APR 21 2016

TXC143-193-210902-
/O.EXP.KFWD.TO.W.0018.000000T0000Z-160421T0900Z/
ERATH TX-HAMILTON TX-
354 AM CDT THU APR 21 2016

...THE TORNADO WARNING FOR SOUTHEASTERN ERATH AND NORTH CENTRAL
HAMILTON COUNTIES WILL EXPIRE AT 400 AM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED...AND NO LONGER
APPEARS CAPABLE OF PRODUCING A TORNADO. THEREFORE THE WARNING WILL
BE ALLOWED TO EXPIRE.

REMEMBER...A SEVERE THUNDERSTORM WARNING STILL REMAINS IN EFFECTS
FOR SOUTHEASTERN ERATH AND NORTH CENTRAL HAMILTON COUNTIES UNTIL 445
AM.

LAT...LON 3209 9835 3210 9790 3206 9792 3202 9800
      3196 9797 3183 9804 3189 9819 3198 9825
      3194 9832 3195 9834 3200 9837
TIME...MOT...LOC 0850Z 290DEG 30KT 3198 9830 

$$

30

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 2:27 AM CDTAreal Flood AdvisoryFWDEastland3 hr
Apr 21, 3:12 AM CDTSpecial Weather StatementFWDDallas, Tarrant63 min
Apr 21, 3:23 AM CDTSpecial Weather StatementFWDComanche, Erath52 min
Apr 21, 3:51 AM CDTSevere Thunderstorm WarningFWDBosque, Comanche, Erath, Hamilton, Somervell54 min
Apr 21, 4:04 AM CDTAreal Flood AdvisoryFWDBosque, Comanche, Erath, Hamilton, Hill, Hood and 2 more3 hr
Apr 21, 4:12 AM CDTRiver Flood WarningFWDTarrant27 hr
Apr 21, 4:44 AM CDTSpecial Weather StatementFWDBell, Bosque, Coryell, Hill, Lampasas, McLennan61 min
Apr 21, 5:32 AM CDTAreal Flood AdvisoryFWDBell, Coryell, McLennan3 hr
Apr 21, 5:48 AM CDTSpecial Weather StatementFWDBell, Falls, Limestone, Milam72 min
Apr 21, 7:04 AM CDTRiver Flood WarningFWDComanche20 hr
Apr 21, 7:25 AM CDTSpecial Weather StatementFWDLeon35 min
Apr 21, 2:24 PM CDTRiver Flood WarningFWDTarrant5 days

Nearby

Tornado Warnings in Texas, 2016Every tornado warning in 2016Tornadoes in 2016

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.