Alert archive / Texas / Tornado Warnings in 2015

Tornado Warning 24, NWS Austin/San Antonio, TX

May 25, 2015Blanco County, Burnet County, Llano County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at May 25, 2015, 1:13 PM CDT for Blanco County, Burnet County, Llano County, Texas. It was in force for 47 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 25, 2015, 1:13 PM CDT (18:13 UTC)
Expired: May 25, 2015, 2:00 PM CDT
In force: 47 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Tornado: Observed
Damage threat: Considerable
Hail: 1.75 in

Counties Blanco County, TX, Burnet County, TX, Llano County, TX

The radar

The Ft Hood radar (KGRK), 83 km from the middle of the area, began a volume at 18:16 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
May 25, 1:24 PM CDT	TORNADO	Round Mountain, TX	LAW ENFORCEMENT REPORTED A TORNADO IN ROUND MOUNTAIN MOVING TOWARD HWY 281 HWY 71 INTERSECTION
May 25, 1:24 PM CDT	TORNADO	Round Mountain, TX

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
May 25, 9:02 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 6.2 hours before the alert went out and 274 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: 1630 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 663 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 7.0

Open this sounding in Storm Lab

The text

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

597 
WFUS54 KEWX 251813
TOREWX
TXC031-053-299-251900-
/O.NEW.KEWX.TO.W.0024.150525T1813Z-150525T1900Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
113 PM CDT MON MAY 25 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN LLANO COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHWESTERN BURNET COUNTY IN SOUTH CENTRAL TEXAS...
  NORTHERN BLANCO COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 200 PM CDT

* AT 113 PM CDT...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO
  WAS LOCATED NEAR SANDY...OR NEAR ROUND MOUNTAIN...MOVING NORTHEAST
  AT 35 MPH.

  THIS IS A PARTICULARLY DANGEROUS SITUATION. 

  HAZARD...DAMAGING TORNADO. 

  SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO EARLIER OVER THE LBJ 
           RANCH.

  IMPACT...YOU ARE IN A LIFE THREATENING SITUATION. FLYING DEBRIS 
           MAY BE DEADLY TO THOSE CAUGHT WITHOUT SHELTER. MOBILE 
           HOMES WILL BE DESTROYED. CONSIDERABLE DAMAGE TO 
           HOMES...BUSINESSES AND VEHICLES IS LIKELY AND COMPLETE 
           DESTRUCTION IS POSSIBLE. 

* THE TORNADO WILL BE NEAR...
  ROUND MOUNTAIN AND CYPRESS MILL AROUND 130 PM CDT.
  SPICEWOOD AROUND 145 PM CDT.
  SMITHWICK AROUND 150 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
COTTONWOOD SHORES AND SUNRISE BEACH VILLAGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A LARGE...EXTREMELY DANGEROUS AND POTENTIALLY DEADLY
TORNADO IS ON THE GROUND. TO PROTECT YOUR LIFE...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 3062 9810 3057 9808 3049 9812 3049 9810
      3046 9810 3035 9817 3025 9845 3041 9855
      3067 9834
TIME...MOT...LOC 1813Z 240DEG 29KT 3037 9842 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...1.75IN

$$

RUNYEN

4 follow-up statements

980 
WWUS54 KEWX 251824
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
124 PM CDT MON MAY 25 2015

TXC031-053-299-251900-
/O.CON.KEWX.TO.W.0024.000000T0000Z-150525T1900Z/
LLANO TX-BURNET TX-BLANCO TX-
124 PM CDT MON MAY 25 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR
SOUTHEASTERN LLANO...SOUTHWESTERN BURNET AND NORTH CENTRAL BLANCO
COUNTIES...
    
AT 123 PM CDT...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO WAS
LOCATED NEAR ROUND MOUNTAIN...MOVING NORTHEAST AT 35 MPH.

THIS IS A PARTICULARLY DANGEROUS SITUATION.

HAZARD...DAMAGING TORNADO. 

SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO NEAR ROUND MOUNTAIN.

IMPACT...YOU ARE IN A LIFE THREATENING SITUATION. FLYING DEBRIS MAY 
         BE DEADLY TO THOSE CAUGHT WITHOUT SHELTER. MOBILE HOMES 
         WILL BE DESTROYED. CONSIDERABLE DAMAGE TO 
         HOMES...BUSINESSES AND VEHICLES IS LIKELY AND COMPLETE 
         DESTRUCTION IS POSSIBLE. 

THE TORNADO WILL BE NEAR...
  GRANITE SHOALS AND HIGHLAND HAVEN AROUND 135 PM CDT.
  MEADOWLAKES AROUND 140 PM CDT.
  MARBLE FALLS AND SMITHWICK AROUND 145 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
COTTONWOOD SHORES AND SUNRISE BEACH VILLAGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A LARGE...EXTREMELY DANGEROUS AND POTENTIALLY DEADLY
TORNADO IS ON THE GROUND. TO PROTECT YOUR LIFE...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 3036 9835 3048 9850 3055 9844 3067 9833
      3062 9810 3057 9808 3057 9809
TIME...MOT...LOC 1823Z 223DEG 31KT 3048 9837 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...1.75IN

$$

RUNYEN

907 
WWUS54 KEWX 251836
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
136 PM CDT MON MAY 25 2015

TXC031-251845-
/O.CAN.KEWX.TO.W.0024.000000T0000Z-150525T1900Z/
BLANCO TX-
136 PM CDT MON MAY 25 2015

...THE TORNADO WARNING FOR NORTH CENTRAL BLANCO COUNTY IS
CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT 
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT FOR SOUTH CENTRAL
TEXAS.

LAT...LON 3062 9811 3061 9810 3058 9808 3057 9809
      3045 9823 3050 9841 3053 9845 3062 9838
      3067 9833
TIME...MOT...LOC 1835Z 220DEG 23KT 3053 9832 

$$

TXC053-299-251900-
/O.CON.KEWX.TO.W.0024.000000T0000Z-150525T1900Z/
LLANO TX-BURNET TX-
136 PM CDT MON MAY 25 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR
SOUTHEASTERN LLANO AND SOUTHWESTERN BURNET COUNTIES...
    
AT 135 PM CDT...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO WAS
LOCATED OVER HORSESHOE BAY...OR NEAR MARBLE FALLS...MOVING NORTHEAST
AT 25 MPH.

THIS IS A PARTICULARLY DANGEROUS SITUATION.

HAZARD...DAMAGING TORNADO. 

SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO EARLIER IN ROUND MOUNTAIN.

IMPACT...YOU ARE IN A LIFE THREATENING SITUATION. FLYING DEBRIS MAY 
         BE DEADLY TO THOSE CAUGHT WITHOUT SHELTER. MOBILE HOMES 
         WILL BE DESTROYED. CONSIDERABLE DAMAGE TO 
         HOMES...BUSINESSES AND VEHICLES IS LIKELY AND COMPLETE 
         DESTRUCTION IS POSSIBLE. 

THE TORNADO WILL BE NEAR...
  MEADOWLAKES AROUND 145 PM CDT.
  MARBLE FALLS AROUND 150 PM CDT.
  SMITHWICK AROUND 155 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
COTTONWOOD SHORES AND SUNRISE BEACH VILLAGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A LARGE...EXTREMELY DANGEROUS AND POTENTIALLY DEADLY
TORNADO IS ON THE GROUND. TO PROTECT YOUR LIFE...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 3062 9811 3061 9810 3058 9808 3057 9809
      3045 9823 3050 9841 3053 9845 3062 9838
      3067 9833
TIME...MOT...LOC 1835Z 220DEG 23KT 3053 9832 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...1.75IN

$$

RUNYEN

510 
WWUS54 KEWX 251844
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
144 PM CDT MON MAY 25 2015

TXC299-251854-
/O.CAN.KEWX.TO.W.0024.000000T0000Z-150525T1900Z/
LLANO TX-
144 PM CDT MON MAY 25 2015

...THE TORNADO WARNING FOR SOUTHEASTERN LLANO COUNTY IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED INTO 
BURNET COUNTY. THEREFORE THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT FOR SOUTH CENTRAL
TEXAS.

LAT...LON 3062 9811 3058 9808 3045 9823 3049 9835
      3056 9835 3057 9837 3057 9840 3066 9827
TIME...MOT...LOC 1844Z 236DEG 19KT 3055 9829 

$$

TXC053-251900-
/O.CON.KEWX.TO.W.0024.000000T0000Z-150525T1900Z/
BURNET TX-
144 PM CDT MON MAY 25 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR
SOUTHWESTERN BURNET COUNTY...
    
AT 144 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER MEADOWLAKES...OR OVER MARBLE FALLS...MOVING
NORTHEAST AT 20 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...
  MARBLE FALLS AROUND 155 PM CDT.
  SMITHWICK AROUND 200 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
COTTONWOOD SHORES.

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 3062 9811 3058 9808 3045 9823 3049 9835
      3056 9835 3057 9837 3057 9840 3066 9827
TIME...MOT...LOC 1844Z 236DEG 19KT 3055 9829 

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

$$

RUNYEN

489 
WWUS54 KEWX 251853
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
153 PM CDT MON MAY 25 2015

TXC053-251902-
/O.EXP.KEWX.TO.W.0024.000000T0000Z-150525T1900Z/
BURNET TX-
153 PM CDT MON MAY 25 2015

...THE TORNADO WARNING FOR SOUTHWESTERN BURNET COUNTY WILL EXPIRE AT
200 PM CDT...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED. 
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT FOR SOUTH CENTRAL
TEXAS.

REMEMBER...A SEVERE THUNDERSTORM WARNING STILL REMAINS IN EFFECT FOR 
SOUTHEAST BURNET COUNTY...FOR WINDS GUSTS TO 60 MPH AND HAIL TO 
GOLFBALL SIZED.

LAT...LON 3062 9811 3058 9808 3045 9823 3049 9835
      3056 9835 3057 9837 3057 9840 3066 9827
TIME...MOT...LOC 1850Z 240DEG 29KT 3055 9829 

$$

RUNYEN

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 24, 7:20 PM CDT	River Flood Warning	EWX	Bexar	15 hr
May 24, 8:34 PM CDT	River Flood Warning	EWX	Uvalde	23 hr
May 25, 5:37 AM CDT	Severe Thunderstorm Warning	EWX	Val Verde	68 min
May 25, 6:22 AM CDT	Tornado Warning	EWX	Val Verde	26 min
May 25, 6:33 AM CDT	Areal Flood Advisory	EWX	Val Verde	3 hr
May 25, 6:42 AM CDT	Severe Thunderstorm Warning	EWX	Kinney, Val Verde	48 min
May 25, 6:44 AM CDT	Flash Flood Warning	EWX	Edwards, Kinney, Val Verde	3 hr
May 25, 7:21 AM CDT	Severe Thunderstorm Warning	EWX	Edwards, Kinney, Val Verde	54 min
May 25, 7:37 AM CDT	Special Weather Statement	EWX	Real	38 min
May 25, 7:38 AM CDT	Flash Flood Warning	EWX	Edwards, Real	3 hr
May 25, 7:41 AM CDT	Severe Thunderstorm Warning	EWX	Edwards, Kerr, Real	64 min
May 25, 8:12 AM CDT	Severe Thunderstorm Warning	EWX	Edwards	48 min
May 25, 8:18 AM CDT	Flash Flood Warning	EWX	Edwards, Gillespie, Kerr, Real	3 hr
May 25, 8:40 AM CDT	Severe Thunderstorm Warning	EWX	Kerr	50 min
May 25, 8:45 AM CDT	Special Weather Statement	EWX	Real	30 min
May 25, 8:59 AM CDT	Severe Thunderstorm Warning	EWX	Bandera, Kerr, Real	46 min
May 25, 9:00 AM CDT	Severe Thunderstorm Warning	EWX	Edwards, Real	60 min
May 25, 9:51 AM CDT	Severe Thunderstorm Warning	EWX	Edwards, Kerr	17 min
May 25, 9:57 AM CDT	Tornado Warning	EWX	Gillespie	20 min
May 25, 10:06 AM CDT	Severe Thunderstorm Warning	EWX	Edwards, Kerr	19 min
May 25, 10:12 AM CDT	Flash Flood Warning	EWX	Gillespie, Llano	5 hr
May 25, 10:25 AM CDT	Severe Thunderstorm Warning	EWX	Llano	46 min
May 25, 11:20 AM CDT	Flash Flood Warning	EWX	Burnet, Llano	3 hr
May 25, 11:32 AM CDT	Flash Flood Warning	EWX	Gillespie, Kerr	3 hr
May 25, 11:41 AM CDT	Special Weather Statement	EWX	Gillespie	34 min
May 25, 11:46 AM CDT	Special Weather Statement	EWX	Llano	29 min
May 25, 12:04 PM CDT	Special Weather Statement	EWX	Llano	26 min
May 25, 12:12 PM CDT	Special Weather Statement	EWX	Gillespie	33 min
May 25, 12:33 PM CDT	Tornado Warning	EWX	Gillespie	27 min
May 25, 12:51 PM CDT	Tornado Warning	EWX	Blanco, Gillespie	24 min
May 25, 12:53 PM CDT	Flash Flood Warning	EWX	Blanco, Gillespie, Kendall	3 hr
May 25, 1:08 PM CDT	Tornado Warning	EWX	Burnet	37 min
May 25, 1:39 PM CDT	Areal Flood Advisory	EWX	Bexar, Comal, Hays, Travis, Williamson	2 hr
May 25, 1:51 PM CDT	Flash Flood Warning	EWX	Bexar, Burnet, Comal, Hays, Travis, Williamson	3 hr
May 25, 1:51 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Burnet, Travis, Williamson	39 min
May 25, 1:59 PM CDT	Tornado Warning	EWX	Burnet, Travis, Williamson	46 min
May 25, 2:18 PM CDT	Flash Flood Warning	EWX	Burnet, Llano	117 min
May 25, 2:29 PM CDT	Tornado Warning	EWX	Hays, Travis	46 min
May 25, 2:42 PM CDT	Tornado Warning	EWX	Williamson	20 min
May 25, 3:16 PM CDT	Tornado Warning	EWX	Travis	29 min
May 25, 3:18 PM CDT	Flash Flood Warning	EWX	Bastrop, Caldwell, Comal, Guadalupe, Hays, Lee and 2 more	3 hr
May 25, 3:27 PM CDT	Severe Thunderstorm Warning	EWX	Williamson	33 min
May 25, 3:38 PM CDT	Severe Thunderstorm Warning	EWX	Travis, Williamson	52 min
May 25, 4:02 PM CDT	Flash Flood Warning Emergency	EWX	Travis, Williamson	3 hr
May 25, 4:14 PM CDT	River Flood Warning	EWX	Williamson	16 hr
May 25, 4:14 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell	46 min
May 25, 4:19 PM CDT	River Flood Warning	EWX	Llano	27 hr
May 25, 4:21 PM CDT	Tornado Warning	EWX	Bastrop, Travis	24 min
May 25, 4:29 PM CDT	River Flood Warning	EWX	Blanco	24 hr
May 25, 4:29 PM CDT	River Flood Warning	EWX	Travis	35 hr
May 25, 4:45 PM CDT	Tornado Warning	EWX	Bastrop	30 min
May 25, 4:49 PM CDT	Flash Flood Warning Emergency	EWX	Bastrop, Caldwell, Hays, Lee, Travis, Williamson	3 hr
May 25, 4:58 PM CDT	Areal Flood Advisory	EWX	Bexar, Comal, Guadalupe, Hays	3 hr
May 25, 5:14 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Lee	46 min
May 25, 5:24 PM CDT	Special Weather Statement	EWX	Guadalupe	51 min
May 25, 5:48 PM CDT	River Flood Warning	EWX	Travis	26 hr
May 25, 6:00 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Fayette, Gonzales, Guadalupe, Lee and 1 more	45 min
May 25, 6:18 PM CDT	Flash Flood Warning	EWX	Bastrop, Caldwell, Fayette, Gonzales, Guadalupe, Karnes and 2 more	6 hr
May 25, 6:22 PM CDT	Tornado Warning Tornado observed	EWX	Fayette	23 min
May 25, 6:26 PM CDT	River Flood Warning	EWX	Caldwell, Gonzales	44 hr
May 25, 6:33 PM CDT	Tornado Warning	EWX	Gonzales, Guadalupe, Wilson	42 min
May 25, 6:47 PM CDT	Tornado Warning	EWX	Fayette	28 min
May 25, 6:48 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Fayette, Gonzales, Lavaca	42 min
May 25, 6:55 PM CDT	Tornado Warning Considerable damage threat	EWX	Gonzales, Wilson	37 min

Nearby

Tornado Warnings in Texas, 2015 Every tornado warning in 2015 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.