Alert archive / Texas / Tornado Watches in 2015
Tornado Watch 302
The Storm Prediction Center issued this tornado watch at Jun 16, 2015, 1:01 PM CDT for 61 counties in Texas. It was in force for 11 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 16, 2015, 1:01 PM CDT (18:01 UTC)
- Expired
- Jun 17, 2015, 12:00 AM CDT
- In force
- 11 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 0.5 in
- Strongest gust expected
- 60 kt
All 61 counties
Anderson County, TX, Angelina County, TX, Austin County, TX, Bastrop County, TX, Bell County, TX, Brazoria County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Chambers County, TX, Cherokee County, TX, Colorado County, TX, Coryell County, TX, DeWitt County, TX, Falls County, TX, Fayette County, TX, Fort Bend County, TX, Freestone County, TX, Galveston County, TX, Gonzales County, TX, Grimes County, TX, Hardin County, TX, Harris County, TX, Hays County, TX, Henderson County, TX, Houston County, TX, Jackson County, TX, Jasper County, TX, Jefferson County, TX, Lampasas County, TX, Lavaca County, TX, Lee County, TX, Leon County, TX, Liberty County, TX, Limestone County, TX, Madison County, TX, Matagorda County, TX, McLennan County, TX, Milam County, TX, Montgomery County, TX, Nacogdoches County, TX, Navarro County, TX, Newton County, TX, Orange County, TX, Panola County, TX, Polk County, TX, Robertson County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Shelby County, TX, Travis County, TX, Trinity County, TX, Tyler County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX, Williamson County, TX
The radar
The Ft Hood radar (KGRK), 109 km from the middle of the area, began a volume at 18:01 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 50%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 5%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 1:15 PM CDT | Tornado Warning | HGX | Chambers, Liberty | 30 min |
| Jun 16, 4:20 PM CDT | Flash Flood Warning | HGX | Matagorda | 3 hr |
| Jun 16, 5:51 PM CDT | Flash Flood Warning | HGX | Brazoria, Colorado, Jackson, Matagorda, Wharton | 3 hr |
| Jun 16, 6:03 PM CDT | Flash Flood Warning | EWX | Lavaca | 6 hr |
| Jun 16, 6:53 PM CDT | Tornado Warning | HGX | Colorado, Jackson, Wharton | 37 min |
| Jun 16, 7:43 PM CDT | Flash Flood Warning | HGX | Austin, Colorado, Wharton | 3 hr |
| Jun 16, 8:14 PM CDT | Flash Flood Warning | EWX | Fayette | 6 hr |
| Jun 16, 9:42 PM CDT | Flash Flood Warning | EWX | Bastrop, Lee | 3 hr |
| Jun 16, 10:43 PM CDT | Flash Flood Warning | HGX | Austin, Colorado, Washington | 3 hr |
| Jun 16, 11:14 PM CDT | Flash Flood Warning | EWX | Bastrop, Travis, Williamson | 3 hr |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 6.0 hours before the alert went out and 277 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
- 310 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 750 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
835 WWUS20 KWNS 161759 SEL2 SPC WW 161759 TXZ000-CWZ000-170500- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 302 NWS STORM PREDICTION CENTER NORMAN OK 100 PM CDT TUE JUN 16 2015 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF SOUTHEASTERN AND EAST CENTRAL TEXAS COASTAL WATERS * EFFECTIVE THIS TUESDAY AFTERNOON FROM 100 PM UNTIL MIDNIGHT CDT. * PRIMARY THREATS INCLUDE... A FEW TORNADOES POSSIBLE ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE SUMMARY...SHOWERS AND THUNDERSTORMS...SOME OF WHICH MAY BECOME CAPABLE OF TORNADOES...EXPECTED TO INCREASE NEAR AND EAST OF TRACK OF TROPICAL STORM BILL THROUGH LATE TONIGHT AS THAT SYSTEM TRACKS GENERALLY NORTH-NORTHWESTWARD. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 105 STATUTE MILES EITHER SIDE OF A LINE FROM 55 MILES SOUTH SOUTHEAST OF AUSTIN TEXAS TO 30 MILES EAST OF LUFKIN TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. && AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 15035. ...CORFIDI
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 4:30 AM CDT | Mesoscale Discussion | SPC | Chambers, Hardin, Jefferson, Orange | 2 hr |
| Jun 16, 7:48 AM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Austin, Bastrop, Bell, Brazoria and 38 more | 2 hr |
| Jun 16, 3:06 PM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Austin, Bastrop, Bell, Brazoria and 47 more | 114 min |
| Jun 16, 6:38 PM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Austin, Bastrop, Bell, Blanco and 72 more | 97 min |
Nearby
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.