Alert archive / Oklahoma / Special Weather Statements in 2026
Special Weather Statement, NWS Tulsa, OK
NWS Tulsa, OK issued this special weather statement at Jun 11, 2026, 8:49 PM CDT for Mayes County, Oklahoma. It was in force for 26 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 11, 2026, 8:49 PM CDT (01:49 UTC)
- Expired
- Jun 11, 2026, 9:15 PM CDT
- In force
- 26 min
- Issued by
- NWS Tulsa, OK
- Hail
- 0.75 in
- Wind
- 40
County Mayes County, OK
The radar
The Tulsa radar (KINX), 25 km from the middle of the area, began a volume at 01:52 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 nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 1.8 hours before the alert went out and 154 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
- 1986 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1094 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 202 m²/s²
- 0-3 km storm-relative helicity
- 186 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 10.5
The text
As transmitted.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tulsa, OK wrote its last area forecast discussion before this special weather statement went out at Jun 11, 6:36 PM CDT, 2 hours 13 minutes earlier. Its key messages:
- Updated at 1211 PM CDT Thu Jun 11 2026
- Thunderstorms are expected across the region today and tonight. Heavy rain... strong downburst winds and hail will accompany the strongest storms.
- Shower and thunderstorm chances will continue the next several days. While any thunderstorm will produce heavy rains, Saturday night is expected to have the greatest potential for excessive rainfall over a larger area. Flash flooding potential will exist with the storms. After the several rounds of rain and storms, the flood threat near creeks and streams will increase Saturday into Sunday.
- Rain and thunderstorm coverage will decrease on Sunday, but the chance of rainfall will continue, especially in southeast Oklahoma.
Area forecast discussion, Jun 11, 6:36 PM CDT, 2 hours 13 minutes before
Area Forecast Discussion National Weather Service Tulsa OK 636 PM CDT Thu Jun 11 2026 ...New AVIATION... .KEY MESSAGES... Updated at 1211 PM CDT Thu Jun 11 2026 - Thunderstorms are expected across the region today and tonight. Heavy rain... strong downburst winds and hail will accompany the strongest storms. - Shower and thunderstorm chances will continue the next several days. While any thunderstorm will produce heavy rains, Saturday night is expected to have the greatest potential for excessive rainfall over a larger area. Flash flooding potential will exist with the storms. After the several rounds of rain and storms, the flood threat near creeks and streams will increase Saturday into Sunday. - Rain and thunderstorm coverage will decrease on Sunday, but the chance of rainfall will continue, especially in southeast Oklahoma. && .SHORT TERM... (Through tonight ) Issued at 1211 PM CDT Thu Jun 11 2026 Thunderstorms will develop in northeast Oklahoma later this afternoon as a front moves southeast into the area. Deep-layer shear is expected to increase with time into the evening and support some potential for severe storms. Initial storm will have wind and hail potential. After a few hours the activity will tend to grow upscale into a line and continue southeast with occasional downbursts becoming the primary threat. The severe potential should diminish after late evening, but thunderstorms should continue across southeast Oklahoma and west-central Arkansas. Quick heavy rains could lead to a local flash flood risk. FYI... Tulsa touched the record high low temp this morning. Fort Smith and Fayetteville stayed above their records. But the final low for the day is expected to be recorded this evening at Tulsa and Fayetteville with the rain and storms. Timing for Fort Smith may be close. && .LONG TERM... (Tomorrow through Thursday) Issued at 1211 PM CDT Thu Jun 11 2026 Shower and storm activity should be ongoing in southeast Oklahoma on Friday morning, but then diminish with time. The next shot at storms develops Friday night across far northeast Oklahoma and northwest Arkansas as one or more nocturnal storm complexes move through region. The front that crosses our area tonight and Friday will redevelop north on Saturday and be the focus for widespread thunderstorm development late Saturday and Saturday evening in southern Kansas or northern Oklahoma. These storms will pose an excessive rain threat and some severe storm potential. Measurable rain will fall across most / all of our area from Saturday night into Sunday, with local amounts of 3 to 5 inches. A cluster analysis of model data suggests the max amounts may center around southeast Kansas, southwest Missouri, and northeast Oklahoma. An isolated amount near 7 inches is not out of the question given the current data. Temps will be down Friday, but rebound Saturday in most areas on Saturday. While conditions may stay below advisory levels, it will be hot and muggy for some. The chance of rain may not completely end in our area until Monday. && .AVIATION... (00Z TAFS) Issued at 636 PM CDT Thu Jun 11 2026 Convection will continue to spread east and southeast tonight as a frontal boundary sags southeast through the CWA. Within the convection, gusty winds, heavy rain and brief MVFR conditions could develop. Will continue with tempo groups for timing of greater potential for each TAF site. Behind the convection, a period of lingering showers are forecast while ceilings become scattered/broken mid and high clouds into Friday morning. There is potential in southeast Oklahoma of MVFR ceilings and additional showers holding into Friday morning as the boundary slows it momentum before retreating northward during the day. As the boundary lifts back over the CWA, again scattered mid and high clouds are forecast Friday afternoon. Winds through the period start out southerly, transition to northerly and then easterly tonight behind the boundary, and finally east to southeast once the front lifts back through Friday. && .PRELIMINARY POINT TEMPS/POPS... TUL 68 85 74 91 / 60 10 10 40 FSM 74 88 75 92 / 90 40 10 30 MLC 73 88 76 91 / 90 50 10 10 BVO 63 84 71 91 / 10 10 30 50 FYV 68 86 72 88 / 90 20 30 50 BYV 66 83 69 86 / 100 10 40 60 MKO 69 85 73 89 / 80 30 10 30 MIO 63 84 70 89 / 40 0 40 70 F10 68 85 73 90 / 80 40 10 20 HHW 75 87 75 91 / 70 70 0 0 && .TSA WATCHES/WARNINGS/ADVISORIES... OK...None. AR...None. && SHORT TERM...08 LONG TERM....08 AVIATION...20
Hazardous weather outlook, Jun 11, 4:54 PM CDT, 3 hours 55 minutes before
Hazardous Weather Outlook National Weather Service Tulsa OK 454 PM CDT Thu Jun 11 2026 ARZ001-002-010-011-119-120-129-219-220-229-OKZ049-053-055>071- 073>075-154-172-176-254-272-276-354-376-122200- Benton-Carroll-Washington AR-Madison-Northern Crawford- Northern Franklin-North and Central Sebastian-Southern Crawford- Central and Southern Franklin-Southern Sebastian-Pushmataha- Choctaw-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers- Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair- Muskogee-McIntosh-Pittsburg-Haskell-Latimer-Western Osage- Northern Sequoyah-Northern Le Flore-Northeast Osage- Central and Southern Sequoyah-Central Le Flore-Southeast Osage- Southern Le Flore- 454 PM CDT Thu Jun 11 2026 This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...This Evening and Tonight. SEVERE THUNDERSTORM. RISK...Significant. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...Ongoing. AREA AT GREATEST RISK...Northeast Oklahoma and Northwest Arkansas. HEAVY RAIN AND FLASH FLOOD. RISK...Limited. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...Ongoing. DANGEROUS HEAT. RISK...Elevated. AREA...Eastern Oklahoma and West Central Arkansas. ONSET...Ongoing Through Early Evening. DISCUSSION... Thunderstorms will continue to develop along a southeastward moving frontal boundary over northeast Oklahoma and northwest Arkansas this evening, and then into southeast Oklahoma tonight. Increasing severe potentials into this evening will support the threat for large hail and damaging winds. Overnight, storms are expected to be more linear with the threat transitioning to mainly locally damaging wind gusts. Overall severe potentials, weaken overnight, though thunderstorm chances continue across southeast Oklahoma and west central Arkansas into early Friday morning. In addition to the severe threat, quick heavy rains could lead to a local flash flood risk into tonight. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Activation of the Regional Spotter Network Expected. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. FRIDAY...Thunderstorm Potential. SATURDAY...Severe Thunderstorm Potential...High Wind Potential...Heavy Rain Potential. SUNDAY...Thunderstorm Potential...Heavy Rain Potential. MONDAY AND TUESDAY...Thunderstorm Potential. WEDNESDAY...High Wind Potential. EXTENDED DISCUSSION... Shower and storm activity should be ongoing in southeast Oklahoma Friday morning, and then diminish during the day. Additional storms are forecast Friday night into Saturday morning across far northeast Oklahoma and northwest Arkansas as one or more nocturnal storm complexes move through the region. The front that crosses our area tonight and Friday will redevelop north Saturday and be the focus for widespread thunderstorm development late Saturday afternoon and evening in southern Kansas to northern Oklahoma. These storms will pose an excessive rain threat and some severe storm potential. Measurable rain will fall across most if not all of eastern Oklahoma and northwest Arkansas Saturday night into Sunday while a cold front moves into the region. Local rainfall amounts of 3 to 5 inches, though an isolated amount near 7 inches is not out of the question given the current data. EMERGENCY MANAGEMENT PLANNING STATEMENT... Emergency managers should continue to closely follow the forecast into the weekend. Severe weather operations will be necessary at times. The main concern appears to be the potential for excessive rain. Flash flooding concerns will increase over the next several days. The excessive rains, depending on exactly where they fall, could easily aggravate creek and river flooding. weather.gov/tulsa contains additional information.
In the hours before
Local storm report, Jun 11, 7:31 PM CDT, 1 hour 18 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jun 11, 7:36 PM CDT, 1 hour 13 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Local storm report, Jun 11, 7:49 PM CDT, 1 hour before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jun 11, 8:12 PM CDT, 37 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jun 11, 8:47 PM CDT, 2 minutes before
Special Weather Statement
National Weather Service Tulsa OK
847 PM CDT Thu Jun 11 2026
OKZ057-058-063-120215-
Craig OK-Delaware OK-Ottawa OK-
847 PM CDT Thu Jun 11 2026
...A CLUSTER OF STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN
CRAIG...NORTHERN DELAWARE AND SOUTHERN OTTAWA COUNTIES THROUGH 915
PM CDT...
At 847 PM CDT, Doppler radar indicated a cluster of strong
thunderstorms near Grove, moving east at 30 mph.
HAZARD...Wind gusts up to 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down small tree limbs and blow
around unsecured objects. Minor hail damage to vegetation
is possible.
Locations in or near the path include...
Grove... Fairland...
Afton... Bernice...
Cleora... Honey Creek State Park...
Bernice State Park... Dodge...
Cayuga...
This includes Interstate 44 between mile markers 291 and 300.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northeastern Oklahoma.
&&
LAT...LON 3649 9462 3655 9504 3675 9505 3678 9462
TIME...MOT...LOC 0147Z 279DEG 27KT 3665 9477
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPHSpecial weather statement, Jun 11, 8:49 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Tulsa OK
849 PM CDT Thu Jun 11 2026
OKZ061-062-120215-
Rogers OK-Mayes OK-
849 PM CDT Thu Jun 11 2026
...A STRONG THUNDERSTORM WILL IMPACT CENTRAL ROGERS AND CENTRAL MAYES
COUNTIES THROUGH 915 PM CDT...
At 849 PM CDT, Doppler radar indicated a strong thunderstorm 6 miles
southeast of Foyil, moving east at 25 mph.
HAZARD...Wind gusts up to 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down small tree limbs and blow
around unsecured objects. Minor hail damage to vegetation
is possible.
Locations in or near the path include...
Claremore... Pryor...
Pryor Creek... Locust Grove...
Salina... Langley...
Adair... Foyil...
Pensacola... Hoot Owl...
Cherokee State Park... Spavinaw State Park...
Sportsmen Acres Community... Strang...
Snowdale State Park... Bushyhead...
This includes Interstate 44 between mile markers 249 and 271.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northeastern Oklahoma.
&&
LAT...LON 3629 9560 3649 9556 3650 9504 3617 9510
TIME...MOT...LOC 0149Z 278DEG 24KT 3635 9546
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPHThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 7:06 PM CDT | Special Weather Statement | TSA | Washington | 24 min |
| Jun 11, 7:18 PM CDT | Severe Thunderstorm Warning | TSA | Ottawa | 42 min |
| Jun 11, 7:21 PM CDT | Areal Flood Advisory | TSA | Craig, Ottawa | 4 hr |
| Jun 11, 7:23 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Delaware, Ottawa | 37 min |
| Jun 11, 7:30 PM CDT | Special Weather Statement | TSA | Rogers | 30 min |
| Jun 11, 7:36 PM CDT | Special Weather Statement | TSA | Creek | 24 min |
| Jun 11, 7:45 PM CDT | Severe Thunderstorm Warning | TSA | Delaware, Ottawa | 15 min |
| Jun 11, 7:59 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Delaware, Mayes, Ottawa | 46 min |
| Jun 11, 8:12 PM CDT | Special Weather Statement | TSA | Rogers | 33 min |
| Jun 11, 8:47 PM CDT | Special Weather Statement | TSA | Ottawa | 28 min |
| Jun 11, 9:11 PM CDT | Special Weather Statement | TSA | Mayes | 34 min |
| Jun 11, 9:14 PM CDT | Special Weather Statement | TSA | Ottawa | 31 min |
| Jun 11, 9:41 PM CDT | Special Weather Statement | TSA | Delaware | 34 min |
| Jun 11, 10:09 PM CDT | Areal Flood Advisory | TSA | Delaware, Mayes | 3 hr |
| Jun 11, 10:23 PM CDT | Special Weather Statement | TSA | Delaware, Mayes | 37 min |
| Jun 11, 10:45 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Mayes, Wagoner | 45 min |
| Jun 11, 11:06 PM CDT | Special Weather Statement | TSA | Adair | 39 min |
| Jun 11, 11:18 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Delaware, Wagoner | 42 min |
| Jun 11, 11:25 PM CDT | Areal Flood Advisory | TSA | Adair, Cherokee, Delaware, Mayes, Muskogee, Wagoner | 3 hr |
| Jun 11, 11:59 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee | 46 min |
| Jun 12, 12:05 AM CDT | Flash Flood Warning | TSA | Cherokee | 6 hr |
| Jun 12, 12:07 AM CDT | Special Weather Statement | TSA | Muskogee | 23 min |
| Jun 12, 12:27 AM CDT | Special Weather Statement | TSA | Muskogee | 33 min |
| Jun 12, 12:42 AM CDT | Special Weather Statement | TSA | Adair, Cherokee | 33 min |
| Jun 12, 12:51 AM CDT | Special Weather Statement | TSA | Muskogee | 24 min |
| Jun 12, 12:59 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Muskogee, Sequoyah | 46 min |
| Jun 12, 1:13 AM CDT | Special Weather Statement | TSA | Cherokee | 32 min |
| Jun 12, 1:40 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Haskell, Muskogee, Sequoyah | 39 min |
| Jun 12, 2:18 AM CDT | Special Weather Statement | TSA | Sequoyah | 27 min |
| Jun 12, 2:37 AM CDT | Special Weather Statement | TSA | Haskell | 38 min |
| Jun 12, 2:47 AM CDT | Special Weather Statement | TSA | Pittsburg | 28 min |
| Jun 12, 2:53 AM CDT | Areal Flood Advisory | TSA | Cherokee, Muskogee, Sequoyah | 3 hr |
| Jun 12, 2:59 AM CDT | Areal Flood Advisory | TSA | LeFlore, Sequoyah | 3 hr |
| Jun 12, 3:15 AM CDT | Special Weather Statement | TSA | Haskell | 30 min |
| Jun 12, 3:17 AM CDT | Special Weather Statement | TSA | Pittsburg | 28 min |
| Jun 12, 3:32 AM CDT | Special Weather Statement | TSA | Haskell | 28 min |
| Jun 12, 3:39 AM CDT | Areal Flood Advisory | TSA | Haskell, Latimer, LeFlore, Sequoyah | 3 hr |
| Jun 12, 3:43 AM CDT | Areal Flood Advisory | TSA | Haskell, Latimer, McIntosh, Muskogee, Pittsburg, Sequoyah | 3 hr |
| Jun 12, 3:50 AM CDT | Special Weather Statement | TSA | LeFlore | 25 min |
| Jun 12, 4:03 AM CDT | Areal Flood Advisory | TSA | Haskell, Latimer, LeFlore | 3 hr |
| Jun 12, 4:11 AM CDT | Flash Flood Warning | TSA | Haskell, Latimer | 5 hr |
| Jun 12, 4:39 AM CDT | Special Weather Statement | TSA | Pushmataha | 36 min |
| Jun 12, 4:45 AM CDT | River Flood Advisory | TSA | Cherokee | 13 hr |
| Jun 12, 4:49 AM CDT | Areal Flood Advisory | TSA | Latimer, LeFlore, Pushmataha | 3 hr |
| Jun 12, 5:06 AM CDT | Special Weather Statement | TSA | Pushmataha | 24 min |
| Jun 12, 5:14 AM CDT | Special Weather Statement | TSA | Pittsburg | 31 min |
| Jun 12, 5:25 AM CDT | Special Weather Statement | TSA | Pushmataha | 35 min |
| Jun 12, 5:58 AM CDT | Special Weather Statement | TSA | Choctaw, Pushmataha | 47 min |
| Jun 12, 6:41 AM CDT | Areal Flood Advisory | TSA | Haskell, McIntosh, Muskogee, Pittsburg | 4 hr |
| Jun 12, 6:43 AM CDT | Special Weather Statement | TSA | Choctaw | 32 min |
| Jun 12, 7:57 AM CDT | Flash Flood Warning | TSA | McIntosh, Pittsburg | 3 hr |
| Jun 12, 11:25 AM CDT | Flood Watch | TSA | Adair, Cherokee, Craig, Delaware, Mayes, Nowata and 4 more | 42 hr |
| Jun 12, 11:40 AM CDT | Special Weather Statement | TSA | Hughes | 35 min |
| Jun 11, 9:50 PM CDT | Special Weather Statement | TSA | Benton | 40 min |
| Jun 11, 10:26 PM CDT | Special Weather Statement | TSA | Benton | 34 min |
| Jun 12, 12:00 AM CDT | Special Weather Statement | TSA | Washington | 30 min |
Nearby
Special Weather Statements in Oklahoma, 2026Every special weather statement 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.