Alert archive / Indiana / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 231, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 21, 2026, 8:25 PM EDT for 5 counties in Indiana. 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
- Jun 21, 2026, 8:25 PM EDT (00:25 UTC)
- Expired
- Jun 21, 2026, 9:15 PM EDT
- In force
- 50 min
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bartholomew County, IN, Decatur County, IN, Jennings County, IN, Rush County, IN, Shelby County, IN
The radar
The Indianapolis radar (KIND), 83 km from the middle of the area, began a volume at 00:25 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 21, 5:43 PM EDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.4 hours before the alert went out and 149 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
- 5 J/kg
- Mixed-layer CIN
- -116 J/kg
- Mixed-layer LCL
- 1335 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 195 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
621
WUUS53 KIND 220025
SVRIND
INC005-031-079-139-145-220115-
/O.NEW.KIND.SV.W.0231.260622T0025Z-260622T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
825 PM EDT Sun Jun 21 2026
The National Weather Service in Indianapolis has issued a
* Severe Thunderstorm Warning for...
Southern Shelby County in central Indiana...
Southern Rush County in central Indiana...
Decatur County in central Indiana...
Northeastern Bartholomew County in central Indiana...
Northern Jennings County in southeastern Indiana...
* Until 915 PM EDT.
* At 825 PM EDT, severe thunderstorms were located along a line
extending from 8 miles south of Shelbyville to 10 miles east of
Columbus, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Columbus, Greensburg, Adams, Hope, Flat Rock, Milford, Westport,
Geneva, St. Paul, Hartsville, Milroy, Millhousen, Clarksburg,
Letts, Burney, Newbern, Waldron, Moscow, Grammer, and Newpoint.
This includes Interstate 74 between mile markers 121 and 144.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until midnight EDT for central and
southeastern Indiana.
&&
LAT...LON 3920 8544 3908 8544 3907 8579 3945 8588
3952 8530 3927 8530
TIME...MOT...LOC 0025Z 260DEG 30KT 3941 8579 3916 8573
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
GM3 follow-up statements
256
WWUS53 KIND 220042
SVSIND
Severe Weather Statement
National Weather Service Indianapolis IN
842 PM EDT Sun Jun 21 2026
INC079-220051-
/O.CAN.KIND.SV.W.0231.000000T0000Z-260622T0115Z/
Jennings IN-
842 PM EDT Sun Jun 21 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN JENNINGS COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until midnight EDT for central and
southeastern Indiana.
LAT...LON 3918 8547 3917 8570 3946 8583 3952 8530
3927 8530
TIME...MOT...LOC 0041Z 259DEG 39KT 3943 8554 3921 8552
$$
INC005-031-139-145-220115-
/O.CON.KIND.SV.W.0231.000000T0000Z-260622T0115Z/
Shelby IN-Rush IN-Decatur IN-Bartholomew IN-
842 PM EDT Sun Jun 21 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR SOUTHEASTERN SHELBY...SOUTHERN RUSH...DECATUR AND NORTHEASTERN
BARTHOLOMEW COUNTIES...
At 841 PM EDT, severe thunderstorms were located along a line
extending from 6 miles northwest of Greensburg to 13 miles northwest
of Osgood, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Greensburg, Adams, Hope, Milford, Westport, Geneva, St. Paul,
Hartsville, Milroy, Millhousen, Clarksburg, Letts, Burney, Waldron,
Moscow, Newpoint, Sandusky, and Lake Santee.
This includes Interstate 74 between mile markers 121 and 144.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until midnight EDT for central and
southeastern Indiana.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3918 8547 3917 8570 3946 8583 3952 8530
3927 8530
TIME...MOT...LOC 0041Z 259DEG 39KT 3943 8554 3921 8552
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
GM635
WWUS53 KIND 220056
SVSIND
Severe Weather Statement
National Weather Service Indianapolis IN
856 PM EDT Sun Jun 21 2026
INC005-145-220105-
/O.CAN.KIND.SV.W.0231.000000T0000Z-260622T0115Z/
Shelby IN-Bartholomew IN-
856 PM EDT Sun Jun 21 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SHELBY AND
NORTHEASTERN BARTHOLOMEW COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until midnight EDT for central and
southeastern Indiana.
LAT...LON 3918 8547 3918 8556 3942 8563 3948 8563
3952 8530 3927 8530
TIME...MOT...LOC 0055Z 260DEG 30KT 3945 8540 3923 8538
$$
INC031-139-220115-
/O.CON.KIND.SV.W.0231.000000T0000Z-260622T0115Z/
Rush IN-Decatur IN-
856 PM EDT Sun Jun 21 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR SOUTHERN RUSH AND DECATUR COUNTIES...
At 855 PM EDT, severe thunderstorms were located along a line
extending from near Lake Santee to 8 miles northwest of Osgood,
moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Greensburg, Adams, St. Paul, Milroy, Millhousen, Newpoint,
Clarksburg, Letts, Sandusky, Lake Santee, and Moscow.
This includes Interstate 74 between mile markers 124 and 144.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until midnight EDT for central and
southeastern Indiana.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3918 8547 3918 8556 3942 8563 3948 8563
3952 8530 3927 8530
TIME...MOT...LOC 0055Z 260DEG 30KT 3945 8540 3923 8538
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
50385
WWUS53 KIND 220110
SVSIND
Severe Weather Statement
National Weather Service Indianapolis IN
910 PM EDT Sun Jun 21 2026
INC031-139-220120-
/O.EXP.KIND.SV.W.0231.000000T0000Z-260622T0115Z/
Rush IN-Decatur IN-
910 PM EDT Sun Jun 21 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN RUSH AND DECATUR
COUNTIES WILL EXPIRE AT 915 PM EDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire. However, heavy
rain is still possible with these thunderstorms.
A Tornado Watch remains in effect until midnight EDT for central and
southeastern Indiana.
LAT...LON 3918 8547 3918 8556 3942 8563 3948 8563
3952 8530 3927 8530
TIME...MOT...LOC 0110Z 260DEG 30KT 3947 8525 3925 8524
$$
50What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Indianapolis, IN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 21, 8:09 PM EDT, 16 minutes earlier. Its key messages:
- Heavy rain and severe storms are possible this afternoon into early Monday
- Flooding threat for both river/non-river will increase through the early week from heavy rainfall on damp/saturated soils
- Temperatures will trend from slightly below normal to near normal through Saturday...trend to very warm/humid late in period
Area forecast discussion, Jun 21, 8:09 PM EDT, 16 minutes before
Area Forecast Discussion National Weather Service Indianapolis IN 809 PM EDT Sun Jun 21 2026 .KEY MESSAGES... - Heavy rain and severe storms are possible this afternoon into early Monday - Flooding threat for both river/non-river will increase through the early week from heavy rainfall on damp/saturated soils - Temperatures will trend from slightly below normal to near normal through Saturday...trend to very warm/humid late in period && .DISCUSSION (This evening through Sunday)... Issued at 302 PM EDT Sun Jun 21 2026 This afternoon through Monday... Quiet weather conditions continue across central Indiana at this time ahead of an approaching MCS with an associated MCV. Look for this system to continue pushing eastward supporting widespread showers and thunderstorms towards this evening. Increasing clouds has limited destabilization to some degree, but moisture advection and daytime heating is allowing for gradual destabilization this afternoon. Deep-layer and low-level shear will also increase over the next several hours with the approaching disturbance promoting stronger flow. Favorable effective shear values around 30-50 kt combined with modest instability supports the potential for organized storms with all hazards possible. Latest model guidance still depicts enlarging low-level hodographs across portions of central IN favoring an isolated tornado threat. The greatest tornado threat is across southwest portions of central Indiana where the greatest instability and low-level wind shear overlap. Some uncertainty remains on storm mode at least initially. There does appear to be at least a brief opportunity for discrete cells later this afternoon into the early evening before multiple linear segments then develop leading to a greater damaging wind gust threat with embedded tornadoes possible. Isolated large hail cannot be ruled out, but modest instability and linear storm mode by the evening hours should mostly limit this threat. A Flood Watch is in effect through 8 AM Monday morning for much of central IN with the potential for 1 to 3 inches of rainfall from multiple rounds of storms. Locally higher amounts cannot be ruled out. Expect precipitation chances to diminish late tonight into Monday morning as the aforementioned disturbance shifts east. Surface high pressure will then build in providing quiet weather for much of the day Monday. Isolated showers are possible across east- central IN through the first half of the day. Lingering clouds and northerly surface flow will keep temperatures cooler. Look for highs in the 70s. Monday night through Sunday... Generally active pattern will continue this week amid overall zonal pattern. Established trough over northern North America that has been guiding mid-latitude pattern...will shift from south-central Canada to more pronounced, perhaps cut-off upper lows over SW Canada to the northern Rockies late this week. This transition will allow a subtropical ridge to build over the central US, bringing seasonably warm and humid conditions into Indiana next weekend. The next round of broad and seasonably weak Canadian surface high pressure will pass through Indiana Monday night to Tuesday night, dropping dewpoints to the mainly low to mid-50s at night, and light northerly breezes under H850 temperatures as low as 10 degrees Celsius during the day Tuesday. Transition back to more summery weather Wednesday with light southwest flow returning moderate humidity ahead of next wave...which should bring periods of scattered RWs/few TRWs through the Wednesday night-Thursday night period as the disturbance's boundary slowly crosses the region. Expect a shorter period of improvement around the Friday timeframe as western trough deepens near Vancouver...only allowing next northern surface ridge to graze the CWA, with isolated diurnal convective chances continuing...and increasing through Saturday as light southerly flow boosts humidity through moderate to high levels. Temperatures through the workweek to see subtle increase in afternoon maximums from around 80F to low 80s, although mid-80s should be more common along the US-50 corridor...while morning lows steadily climb from 50s to 65-70F by week's end. && .AVIATION (00Z TAF Issuance)... Issued at 809 PM EDT Sun Jun 21 2026 Impacts: - Thunderstorms ongoing at the beginning of the TAF period with lowered ceilings and visibilities - Rain and isolated thunderstorms to continue through around 12Z - MVFR to IFR ceilings to persist from early morning through much of tomorrow - Winds shifting from SE to W to N through the period Discussion: Ongoing thunderstorms at the start of the period with strongest storms just exiting TAF sites as of 00-01Z. As these storms move off to the east, expect visibilities to improve but MVFR to IFR ceilings are expected to persist through much of the day tomorrow. Winds will start out from the SE with gusts up to 20 kts outside of thunderstorm wind gusts. Winds will shift to out of the SW by early morning and eventually from the north as this storm system moves through the region. && .IND WATCHES/WARNINGS/ADVISORIES... Flood Watch until 8 AM EDT Monday for INZ028>030-035>037-039- 043>048-051>057-060>065-067>072. && AVIATION...KF DISCUSSION...AGM/Melo
Hazardous weather outlook, Jun 21, 4:36 PM EDT, 3 hours 49 minutes before
Hazardous Weather Outlook National Weather Service Indianapolis IN 436 PM EDT Sun Jun 21 2026 INZ021-028>031-035>049-051>057-060>064-067>072-222045- Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone- Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam- Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-Johnson-Shelby- Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-Knox-Daviess-Martin- Lawrence-Jackson-Jennings- 436 PM EDT Sun Jun 21 2026 This hazardous weather outlook is for central Indiana. .DAY ONE...Tonight. Thunderstorms are expected this afternoon into tonight with some severe storms possible, mainly from through 100 AM EDT. Damaging winds and isolated tornadoes are the primary threats from the storms. Lightning is also a threat with any thunderstorm. In addition, moderate to heavy rainfall is expected this afternoon into tonight which may lead to localized flooding and increase current minor river flooding. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Additional thunderstorms are possible Monday and again Wednesday through Saturday. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to pass along flooding and severe weather reports. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind INZ065-222045- Decatur- 436 PM EDT Sun Jun 21 2026 This hazardous weather outlook is for central Indiana. .DAY ONE...Tonight. Residents living southwest of McCoy Lake are encouraged to closely monitor conditions through tonight as releases from the dam are planned. Thunderstorms are expected this afternoon into tonight with some severe storms possible, mainly from through 100 AM EDT. Damaging winds and isolated tornadoes are the primary threats from the storms. Lightning is also a threat with any thunderstorm. In addition, moderate to heavy rainfall is expected this afternoon into tonight which may lead to localized flooding and increase current minor river flooding. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Additional thunderstorms are possible Monday and again Wednesday through Saturday. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to pass along flooding and severe weather reports. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind
In the hours before
Local storm report, Jun 21, 6:24 PM EDT, 2 hours 1 minute before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
624 PM EDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0619 PM Tstm Wnd Gst Sullivan 39.10N 87.41W
06/21/2026 E70 MPH Sullivan IN Amateur Radio
&&
BHLocal storm report, Jun 21, 6:57 PM EDT, 1 hour 28 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
657 PM EDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0650 PM Tstm Wnd Dmg 3 W Hymera 39.19N 87.35W
06/21/2026 Sullivan IN Amateur Radio
Law enforcement in Sullivan County reports
many trees and power lines are
down...multiple vehicles damaged and several
houses damaged.
&&
BHLocal storm report, Jun 21, 6:58 PM EDT, 1 hour 27 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
658 PM EDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0654 PM Funnel Cloud Patricksburg 39.31N 86.96W
06/21/2026 Owen IN Trained Spotter
Located northwest of the elementary school.
&&
BHLocal storm report, Jun 21, 7:07 PM EDT, 1 hour 18 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
707 PM EDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0705 PM Tstm Wnd Gst 1 W Greencastle 39.64N 86.86W
06/21/2026 M70 MPH Putnam IN Public
&&
BHLocal storm report, Jun 21, 7:41 PM EDT, 44 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
741 PM EDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0735 PM Funnel Cloud Vincennes 38.68N 87.51W
06/21/2026 Knox IN Public
Time is approximate. Cloud dissipated during
the call to NWS.
&&
BHLocal storm report, Jun 21, 8:07 PM EDT, 18 minutes before
Preliminary Local Storm Report
National Weather Service Indianapolis IN
807 PM EDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0802 PM Rain 1 SE Terre Haute 39.46N 87.37W
06/21/2026 M1.90 Inch Vigo IN Public
&&
BHThe office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 8:09 PM EDT | Flash Flood Warning | IND | Greene, Monroe | 3 hr |
| Jun 21, 8:09 PM EDT | Severe Thunderstorm Warning | IND | Daviess, Knox, Martin | 66 min |
| Jun 21, 8:14 PM EDT | Tornado Warning | IND | Bartholomew, Decatur, Shelby | 24 min |
| Jun 21, 8:21 PM EDT | Flash Flood Warning | IND | Daviess, Knox, Martin | 3 hr |
| Jun 21, 8:27 PM EDT | Severe Thunderstorm Warning | IND | Jackson, Lawrence | 48 min |
| Jun 21, 8:28 PM EDT | Flash Flood Warning | IND | Brown, Jackson, Monroe | 4 hr |
| Jun 21, 8:35 PM EDT | Tornado Warning | IND | Decatur | 25 min |
| Jun 21, 8:42 PM EDT | Areal Flood Advisory | IND | Bartholomew, Jackson, Jennings | 3 hr |
| Jun 21, 8:57 PM EDT | Areal Flood Advisory | IND | Daviess, Lawrence, Martin | 3 hr |
| Jun 21, 9:04 PM EDT | Tornado Warning | IND | Martin | 21 min |
| Jun 21, 9:09 PM EDT | Flash Flood Warning | IND | Bartholomew | 3 hr |
| Jun 21, 9:17 PM EDT | Flash Flood Warning | IND | Daviess, Lawrence, Martin | 4 hr |
| Jun 21, 9:32 PM EDT | Severe Thunderstorm Warning | IND | Jennings | 28 min |
| Jun 21, 9:59 PM EDT | Areal Flood Warning | IND | Knox | 2 hr |
| Jun 21, 10:06 PM EDT | River Flood Warning | IND | Daviess, Greene, Knox | 4 days |
| Jun 21, 10:06 PM EDT | River Flood Warning | IND | Daviess, Gibson, Knox, Pike | 47 hr |
| Jun 21, 10:06 PM EDT | River Flood Warning | IND | Gibson, Knox, Posey | 10 days |
| Jun 21, 10:34 PM EDT | Areal Flood Advisory | IND | Jennings | 12 hr |
| Jun 21, 10:56 PM EDT | Flash Flood Warning | IND | Daviess, Knox, Martin | 64 min |
| Jun 21, 11:47 PM EDT | Flash Flood Warning | IND | Daviess, Martin | 5 hr |
| Jun 21, 11:58 PM EDT | Areal Flood Warning | IND | Bartholomew | 11 hr |
| Jun 22, 12:00 AM EDT | Areal Flood Warning | IND | Knox | 11 hr |
| Jun 22, 12:57 AM EDT | Areal Flood Warning | IND | Martin | 4 hr |
| Jun 22, 4:50 AM EDT | Areal Flood Warning | IND | Daviess, Martin | 6 hr |
| Jun 22, 9:39 AM EDT | River Flood Warning | IND | Jackson, Lawrence, Washington | 21 hr |
Nearby
Severe Thunderstorm Warnings in Indiana, 2026Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.