Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 21, NWS Fort Worth, TX

April 13, 2015Anderson County, Freestone County, Limestone County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 13, 2015, 5:40 PM CDT for Anderson County, Freestone County, Limestone County, Texas. It was in force for 50 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 13, 2015, 5:40 PM CDT (22:40 UTC)
Expired: Apr 13, 2015, 6:30 PM CDT
In force: 50 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

Counties Anderson County, TX, Freestone County, TX, Limestone County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 145 km from the middle of the area, began a volume at 22:43 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.

Issued	Product	Office	Lasted
Apr 13, 5:33 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 10.7 hours before the alert went out and 163 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1033 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 595 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 16 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

011 
WUUS54 KFWD 132240
SVRFWD
TXC001-161-293-132330-
/O.NEW.KFWD.SV.W.0021.150413T2240Z-150413T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
540 PM CDT MON APR 13 2015

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL LIMESTONE COUNTY IN NORTH CENTRAL TEXAS...
  FREESTONE COUNTY IN NORTH CENTRAL TEXAS...
  NORTHWESTERN ANDERSON COUNTY IN NORTHEASTERN TEXAS...

* UNTIL 630 PM CDT

* AT 539 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR FAIRFIELD LAKE STATE PARK TO NEAR FORT PARKER
  STATE PARK...MOVING NORTHEAST AT 25 MPH.

  HAZARD...HALF DOLLAR SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

* LOCATIONS IMPACTED INCLUDE...
  PALESTINE...MEXIA...GROESBECK...TEAGUE...FAIRFIELD...WORTHAM...
  FAIRFIELD LAKE STATE PARK...FORT PARKER STATE PARK...TEHUACANA...
  STREETMAN AND KIRVIN.

THIS INCLUDES INTERSTATE 45 BETWEEN MILE MARKERS 185 AND 211.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

HEAVY RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO 
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3168 9567 3140 9655 3167 9670 3201 9606
      3201 9603 3203 9582
TIME...MOT...LOC 2239Z 245DEG 23KT 3178 9611 3157 9652 

HAIL...1.25IN
WIND...<50MPH
 
$$

JLDUNN

2 follow-up statements

343 
WWUS54 KFWD 132304
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
604 PM CDT MON APR 13 2015

TXC001-161-293-132330-
/O.CON.KFWD.SV.W.0021.000000T0000Z-150413T2330Z/
LIMESTONE TX-FREESTONE TX-ANDERSON TX-
604 PM CDT MON APR 13 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR NORTHEASTERN LIMESTONE...FREESTONE AND NORTHWESTERN ANDERSON
COUNTIES...

AT 602 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR FAIRFIELD 
LAKE STATE PARK...OR 12 MILES EAST OF FAIRFIELD...MOVING EAST AT 30 
MPH. ANOTHER SEVERE STORM WAS LOCATED BETWEEN TEAGUE AND 
GROESBECK...ALSO MOVING EAST.

HAZARD...QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

LOCATIONS IMPACTED INCLUDE...
PALESTINE...TEAGUE...FAIRFIELD LAKE STATE PARK.

THIS INCLUDES INTERSTATE 45 BETWEEN MILE MARKERS 185 AND 206.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

HEAVY RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO 
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED 
ROADWAYS.

&&

LAT...LON 3168 9567 3144 9644 3173 9645 3188 9613
      3200 9581
TIME...MOT...LOC 2302Z 255DEG 24KT 3177 9595 

HAIL...1.00IN
WIND...<50MPH
 
$$

JLDUNN

256 
WWUS54 KFWD 132325
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
625 PM CDT MON APR 13 2015

TXC001-161-293-132334-
/O.EXP.KFWD.SV.W.0021.000000T0000Z-150413T2330Z/
LIMESTONE TX-FREESTONE TX-ANDERSON TX-
625 PM CDT MON APR 13 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LIMESTONE...
FREESTONE AND NORTHWESTERN ANDERSON COUNTIES WILL EXPIRE AT 630 PM
CDT...
    
THE SEVERE THUNDERSTORMS THAT PROMPTED THE WARNING HAVE WEAKENED. 
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. LIGHTNING AND 
MODERATE TO HEAVY RAINFALL WILL CONTINUE TO OCCUR WITH THESE STORMS 
AS THEY MOVE EAST.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
NORTHEASTERN TEXAS.

LAT...LON 3168 9567 3144 9644 3173 9645 3188 9613
      3200 9581
TIME...MOT...LOC 2322Z 245DEG 23KT 3177 9595 

$$

JLDUNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 13, 4:22 AM CDT	Areal Flood Advisory	FWD	Cooke, Grayson	113 min
Apr 13, 6:11 AM CDT	Areal Flood Advisory	FWD	Cooke, Grayson	2 hr
Apr 13, 8:34 AM CDT	Areal Flood Advisory	FWD	Cooke, Denton, Tarrant, Wise	3 hr
Apr 13, 9:16 AM CDT	Flash Flood Warning	FWD	Cooke, Denton, Tarrant	119 min
Apr 13, 10:11 AM CDT	Areal Flood Advisory	FWD	Collin, Dallas, Denton, Rockwall	3 hr
Apr 13, 10:48 AM CDT	Areal Flood Advisory	FWD	Grayson	3 hr
Apr 13, 10:55 AM CDT	Flash Flood Warning	FWD	Collin, Denton, Grayson	3 hr
Apr 13, 11:20 AM CDT	Areal Flood Advisory	FWD	Cooke	3 hr
Apr 13, 2:43 PM CDT	Special Weather Statement	FWD	Eastland	47 min
Apr 13, 5:12 PM CDT	Special Weather Statement	FWD	Freestone	33 min
Apr 13, 5:27 PM CDT	Special Weather Statement	FWD	Limestone	33 min
Apr 13, 6:07 PM CDT	Special Weather Statement	FWD	Comanche	38 min

Nearby

Severe Thunderstorm Warnings in Texas, 2015 Every severe thunderstorm warning in 2015

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.