Alert archive / Oklahoma / Tornado Warnings in 2026

Tornado Warning 41, NWS Norman, OK

April 24, 2026Garvin County, Murray County, Oklahoma

NWS Norman, OK issued this tornado warning at Apr 24, 2026, 3:24 PM CDT for Garvin County, Murray County, Oklahoma. It was in force for 51 min. 1 report 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
Apr 24, 2026, 3:24 PM CDT (20:24 UTC)
Expired
Apr 24, 2026, 4:15 PM CDT
In force
51 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

Counties Garvin County, OK, Murray County, OK

The radar

The Norman radar (KTLX), 80 km from the middle of the area, began a volume at 20:27 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
Apr 24, 3:30 PM CDTHAIL 1.5Elmore City, OK

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

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 24, 1:55 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 8.4 hours before the alert went out and 69 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, Norman, OK at 12:00Z on 2026-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1690 joules per kilogram.LCLLFCEL10008507005003002001001 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, Norman, OK at 12:00Z on 2026-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 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
1690 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
617 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

The text

As transmitted.

128 
WFUS54 KOUN 242024
TOROUN
OKC049-099-242115-
/O.NEW.KOUN.TO.W.0041.260424T2024Z-260424T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Norman OK
324 PM CDT Fri Apr 24 2026

The National Weather Service in Norman has issued a

* Tornado Warning for...
  Southeastern Garvin County in southern Oklahoma...
  North central Murray County in southern Oklahoma...

* Until 415 PM CDT.

* At 324 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Elmore City, moving southeast at 20 mph.

  HAZARD...Tornado and golf ball 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.

* Locations impacted include...
  Davis, Wynnewood, Elmore City, and Katie.

This includes Interstate 35 between mile markers 54 and 69.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter, safe room 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 3463 9745 3473 9737 3464 9697 3444 9708
TIME...MOT...LOC 2024Z 294DEG 18KT 3465 9736 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

Mahale
2 follow-up statements
245 
WWUS54 KOUN 242037
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
337 PM CDT Fri Apr 24 2026

OKC049-099-242115-
/O.CON.KOUN.TO.W.0041.000000T0000Z-260424T2115Z/
Garvin OK-Murray OK-
337 PM CDT Fri Apr 24 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
SOUTHEASTERN GARVIN AND NORTH CENTRAL MURRAY COUNTIES...

At 337 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Katie, moving southeast at 20 mph.

HAZARD...Tornado and tennis ball 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.

Locations impacted include...
Davis, Wynnewood, and Elmore City.

This includes Interstate 35 between mile markers 54 and 69.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter, safe room, 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 3462 9742 3472 9732 3464 9697 3444 9708
TIME...MOT...LOC 2037Z 296DEG 16KT 3462 9731 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.50 IN

$$

Mahale
089 
WWUS54 KOUN 242056
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
356 PM CDT Fri Apr 24 2026

OKC049-099-242115-
/O.CON.KOUN.TO.W.0041.000000T0000Z-260424T2115Z/
Garvin OK-Murray OK-
356 PM CDT Fri Apr 24 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
SOUTHEASTERN GARVIN AND NORTH CENTRAL MURRAY COUNTIES...

At 355 PM CDT, a severe thunderstorm capable of producing a tornado
was located 6 miles southwest of Wynnewood, moving southeast at 20
mph.

HAZARD...Tornado and tennis ball 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.

Locations impacted include...
Davis and Wynnewood.

This includes Interstate 35 between mile markers 54 and 68.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter, safe room, 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 3458 9734 3470 9722 3464 9697 3444 9708
TIME...MOT...LOC 2055Z 299DEG 16KT 3457 9724 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.50 IN

$$

Mahale

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Norman, OK wrote its last area forecast discussion before this tornado warning went out at Apr 24, 1:32 PM CDT, 1 hour 52 minutes earlier. Its key messages:

  • Updated at 131 PM CDT Fri Apr 24 2026
  • Unsettled weather pattern continues into the weekend with daily opportunities for strong-to-severe thunderstorms.
  • Briefly drier Monday into Tuesday before additional storm chances return next week.
  • Fire weather possible behind the dryline this weekend, mainly across far western/northwestern Oklahoma.
Area forecast discussion, Apr 24, 1:32 PM CDT, 1 hour 52 minutes before
Area Forecast Discussion
National Weather Service Norman OK
132 PM CDT Fri Apr 24 2026

...New NEAR TERM, SHORT TERM...

.KEY MESSAGES...
Updated at 131 PM CDT Fri Apr 24 2026

- Unsettled weather pattern continues into the weekend with daily
  opportunities for strong-to-severe thunderstorms.

- Briefly drier Monday into Tuesday before additional storm
  chances return next week.

- Fire weather possible behind the dryline this weekend, mainly
  across far western/northwestern Oklahoma.

&&

.NEAR TERM...
(Rest of today and tonight)
Issued at 131 PM CDT Fri Apr 24 2026

Severe storms will be possible again this afternoon and evening.

A front/remnant outflow boundary extends from near Waurika and Pauls
Valley to north of Ada, OK early this afternoon. This boundary has
either stalled or is just drifting very slowly south. Thunderstorm
development will be possible near and south of this boundary this
afternoon and evening with several CAMs showing scattered storms
developing. The environment south of the boundary is sufficient for
severe storms with supercells possible. Large/very large hail and
damaging winds are the primary concerns. However, there is a risk
for a few tornadoes, especially near the boundary where the low-
level wind shear could be enhanced. The storms and severe potential
are expected to end this evening with the fa to remain dry overnight.

&&

.SHORT TERM...
(Saturday through Sunday night)
Issued at 131 PM CDT Fri Apr 24 2026

Unsettled weather will continue over the weekend with a risk for
severe storms both Saturday and Sunday. There are still some
uncertainties this weekend, especially since what happens one day
could be somewhat dependent on what happens the day/night before.

SATURDAY: Models show a potential mid-level disturbance/perturbation
moving across KS/N OK in the broad west-southwest flow aloft.
Meanwhile, at the sfc, the boundary that is across portions of the
area today is expected to lift north across at least parts of the fa
Saturday. A dryline is also expected to extend across portions of
western OK and western north TX.

Thunderstorm development will be possible near and north of the warm
front Saturday afternoon into night although there are questions on
where this boundary will be when development begins. Models are
currently not showing any storm development near the dryline but it
is not completely out of the question for a storm to develop near
this boundary although the highest chances are definitely near the
warm front. A moist, unstable airmass is expected south of the warm
front and east of the dryline. With this airmass, severe storms will
be possible with large hail and damaging winds the main concerns.
There is also a low potential for a tornado, especially near the
warm front.

Showers/storms will remain possible into early Sunday although the
severe potential is expected to diminish overnight.

SUNDAY: Another day with severe storms possible across portions of
the area although Sunday is a bit more conditional due to a cap, the
affects from Saturday/Saturday night activity, and whether storms
are able to develop.

Models show a shortwave moving into the Central Plains late Sunday.
The timing of the shortwave currently is out of phase with peak
diurnal heating but if this feature is faster than models are
currently showing, the shortwave could aid in storm development and
provide some upper level support. At the sfc, a dryline is expected
to move east into portions of OK and north TX. However, there is a
question on how far east this dryline will move which will have an
impact on the potential area for severe storms.

Sfc heating and convergence along the dryline could provide enough
lift to overcome the cap for at least isolated to widely scattered
storms to develop near the boundary late Sunday afternoon. A moist,
unstable airmass is expected to be in place east of the dryline
which will make severe storms possible. Large/very large hail and
damaging winds will be the main concerns. However, a strengthening
low level jet Sunday evening will increase the potential for
tornadoes.

&&

.LONG TERM...
(Monday through Thursday)
Issued at 125 AM CDT Fri Apr 24 2026

Drier conditions are expected Monday as surface moisture is shunted
to our south and east behind a Pacific front and our area is
positioned within a zone of subsidence behind Sunday's wave.
However, with broad southwest flow being maintained over the region
additional chances for showers/storms (and severe weather) could
return as early as Tuesday and continue into midweek as surface
moisture lifts back northward into the area.

Ware

&&

.AVIATION...
(18Z TAFS)
Issued at 1225 PM CDT Fri Apr 24 2026

Persisting stratus will linger ahead of a dryline resulting in
periods of MVFR category ceilings across all terminals except KCSM
& KWWR at least through 21Z. After 21Z all terminals should
improve to a VFR category at least through 08Z. Isolated thunderstorms
will be possible across southeast Oklahoma which could affect terminal
KDUA between 22-01Z with a 30% probability in place. Surface winds
out of the north around 10 kts behind a cold front. However,
expecting this cold front to lift as a warm front after 06Z which
will gradually veer the winds more southeast through the end of
the forecast period.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  58  83  61  87 /  10  30  20  10
Hobart OK         57  89  58  92 /   0  20  10   0
Wichita Falls TX  60  94  63  95 /  10  20   0   0
Gage OK           52  83  53  88 /  10  20  20  20
Ponca City OK     54  77  59  79 /   0  50  50  40
Durant OK         62  87  65  86 /  20  30  50  20

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...None.
TX...None.
&&

NEAR TERM...25
SHORT TERM...25
LONG TERM....08
AVIATION...68

In the hours before

Local storm report, Apr 24, 2:50 PM CDT, 34 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
250 PM CDT Fri Apr 24 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0242 PM     Hail             1 S Konawa              34.95N 96.75W
04/24/2026  E2.25 Inch       Seminole           OK   Public

            Report from mPING: Hen Egg+ (2.25 in.).

&&
Local storm report, Apr 24, 2:51 PM CDT, 33 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
251 PM CDT Fri Apr 24 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0226 PM     Hail             6 N Rosedale            35.00N 97.19W
04/24/2026  E1.00 Inch       Cleveland          OK   Public

            Report from mPING: Quarter (1.00 in.).

&&
Local storm report, Apr 24, 2:55 PM CDT, 29 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
255 PM CDT Fri Apr 24 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0245 PM     Hail             6 W Antioch             34.72N 97.52W
04/24/2026  E1.75 Inch       Garvin             OK   Public

            Social Media.

&&
Local storm report, Apr 24, 2:57 PM CDT, 27 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
257 PM CDT Fri Apr 24 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0254 PM     Hail             4 E Konawa              34.94N 96.68W
04/24/2026  E1.50 Inch       Seminole           OK   Public

            Report from mPING: Ping Pong Ball (1.50
            in.).

&&
Local storm report, Apr 24, 3:12 PM CDT, 12 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
312 PM CDT Fri Apr 24 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0308 PM     Hail             8 NNE Vanoss            34.87N 96.84W
04/24/2026  E1.25 Inch       Pontotoc           OK   Emergency Mngr

&&
Local storm report, Apr 24, 3:15 PM CDT, 9 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
315 PM CDT Fri Apr 24 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0315 PM     Hail             8 NNE Vanoss            34.87N 96.84W
04/24/2026  E1.75 Inch       Pontotoc           OK   Emergency Mngr

&&

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 23, 7:08 PM CDTTornado Warning Tornado observedConsiderable damage threatOUNKay52 min
Apr 23, 7:14 PM CDTSevere Thunderstorm WarningOUNGrant46 min
Apr 23, 7:34 PM CDTSevere Thunderstorm WarningOUNGrant, Kay41 min
Apr 23, 7:39 PM CDTTornado WarningOUNKay51 min
Apr 23, 7:40 PM CDTSevere Thunderstorm WarningOUNGarfield50 min
Apr 23, 7:58 PM CDTSpecial Weather StatementOUNComanche32 min
Apr 23, 7:59 PM CDTTornado Warning EmergencyOUNGarfield46 min
Apr 23, 8:04 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNGrant, Kay41 min
Apr 23, 8:09 PM CDTSevere Thunderstorm WarningOUNComanche, Stephens, Tillman51 min
Apr 23, 8:18 PM CDTTornado WarningOUNKay42 min
Apr 23, 8:40 PM CDTSevere Thunderstorm WarningOUNGrant, Kay50 min
Apr 23, 8:41 PM CDTAreal Flood AdvisoryOUNKay3 hr
Apr 23, 8:42 PM CDTTornado Warning Tornado observedConsiderable damage threatOUNGarfield17 min
Apr 23, 8:50 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNGarfield, Kingfisher, Logan, Noble40 min
Apr 23, 9:13 PM CDTSevere Thunderstorm WarningOUNKay35 min
Apr 23, 9:16 PM CDTTornado WarningOUNGarfield44 min
Apr 23, 9:25 PM CDTAreal Flood AdvisoryOUNGarfield3 hr
Apr 23, 9:33 PM CDTSevere Thunderstorm WarningOUNGarfield, Logan, Noble, Payne57 min
Apr 23, 10:05 PM CDTFlash Flood WarningOUNGarfield, Noble5 hr
Apr 23, 10:05 PM CDTSevere Thunderstorm WarningOUNGarfield40 min
Apr 23, 10:16 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNGarfield, Logan, Noble, Payne59 min
Apr 23, 10:27 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNGarfield, Noble48 min
Apr 23, 10:36 PM CDTSpecial Weather StatementOUNMcClain24 min
Apr 23, 10:48 PM CDTTornado WarningOUNNoble, Payne42 min
Apr 23, 11:03 PM CDTFlash Flood WarningOUNGarfield, Noble3 hr
Apr 23, 11:16 PM CDTSevere Thunderstorm WarningOUNGarfield, Logan, Noble, Payne44 min
Apr 23, 11:39 PM CDTFlash Flood WarningOUNNoble, Payne3 hr
Apr 23, 11:55 PM CDTSevere Thunderstorm WarningOUNLogan, Noble, Payne50 min
Apr 24, 12:00 AM CDTSpecial Weather StatementOUNKingfisher30 min
Apr 24, 12:28 AM CDTSevere Thunderstorm WarningOUNKingfisher, Logan47 min
Apr 24, 12:42 AM CDTSpecial Weather StatementOUNPayne33 min
Apr 24, 1:31 AM CDTFlash Flood WarningOUNNoble, Payne3 hr
Apr 24, 1:41 AM CDTAreal Flood AdvisoryOUNKingfisher, Logan3 hr
Apr 24, 1:44 AM CDTSpecial Weather StatementOUNLogan31 min
Apr 24, 7:10 AM CDTDense Fog AdvisoryOUNNoble, Payne3 hr
Apr 24, 2:06 PM CDTSpecial Weather StatementOUNSeminole24 min
Apr 24, 2:11 PM CDTSevere Thunderstorm WarningOUNPottawatomie, Seminole49 min
Apr 24, 2:15 PM CDTSevere Thunderstorm WarningOUNCleveland, Pottawatomie45 min
Apr 24, 2:32 PM CDTSevere Thunderstorm WarningOUNGarvin, McClain43 min
Apr 24, 2:44 PM CDTSevere Thunderstorm WarningOUNMcClain, Pontotoc, Pottawatomie46 min
Apr 24, 2:49 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNHughes, Pontotoc, Seminole41 min
Apr 24, 2:57 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNGarvin48 min
Apr 24, 3:09 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNPontotoc, Seminole51 min
Apr 24, 3:19 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNGarvin, Murray41 min
Apr 24, 3:24 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNCoal, Hughes, Pontotoc, Seminole51 min
Apr 24, 3:35 PM CDTTornado WarningOUNCoal, Hughes, Pontotoc40 min
Apr 24, 3:48 PM CDTSevere Thunderstorm WarningOUNHughes42 min
Apr 24, 3:56 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNCoal, Hughes, Pontotoc, Seminole49 min
Apr 24, 4:03 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNCoal, Hughes, Pontotoc, Seminole42 min
Apr 24, 4:09 PM CDTTornado WarningOUNMurray33 min
Apr 24, 4:20 PM CDTAreal Flood AdvisoryOUNHughes, Pontotoc, Seminole3 hr
Apr 24, 4:35 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNJohnston, Murray, Pontotoc40 min
Apr 24, 4:37 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNAtoka, Coal, Hughes, Pontotoc53 min
Apr 24, 5:11 PM CDTSevere Thunderstorm WarningOUNHughes, Seminole49 min
Apr 24, 5:13 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNCoal, Johnston, Pontotoc47 min
Apr 24, 5:23 PM CDTSevere Thunderstorm WarningOUNAtoka37 min
Apr 24, 5:33 PM CDTSevere Thunderstorm WarningOUNHughes, Seminole42 min
Apr 24, 5:35 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNAtoka, Coal, Johnston40 min
Apr 24, 5:57 PM CDTSevere Thunderstorm WarningOUNAtoka, Bryan, Johnston, Marshall48 min
Apr 24, 6:05 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNHughes, Seminole27 min
Apr 24, 6:10 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNAtoka50 min
Apr 24, 6:30 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNAtoka, Bryan45 min
Apr 24, 6:32 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNAtoka, Bryan, Johnston43 min

Nearby

Tornado Warnings in Oklahoma, 2026Every tornado warning in 2026Tornadoes in 2026

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.