Alert archive / Minnesota / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 80, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Aug 8, 2015, 3:16 PM CDT for Aitkin County, Cass County, Crow Wing County, Minnesota. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 8, 2015, 3:16 PM CDT (20:16 UTC)
- Expired
- Aug 8, 2015, 3:45 PM CDT
- In force
- 29 min
- Issued by
- NWS Duluth, MN
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Aitkin County, MN, Cass County, MN, Crow Wing County, MN
The radar
The Duluth radar (KDLH), 133 km from the middle of the area, began a volume at 20:18 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
International Fa, MN (KINL), launched 12:00Z, 8.3 hours before the alert went out and 216 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
- 452 J/kg
- Mixed-layer CIN
- -100 J/kg
- Mixed-layer LCL
- 982 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 183 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
What 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 Duluth, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 8, 12:29 PM CDT, 2 hours 47 minutes earlier.
Area forecast discussion, Aug 8, 12:29 PM CDT, 2 hours 47 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>Hazardous weather outlook, Aug 8, 12:49 PM CDT, 2 hours 27 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>In the hours before
Special weather statement, Aug 8, 10:11 AM CDT, 5 hours 5 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, Aug 8, 10:29 AM CDT, 4 hours 47 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DULUTH MN 1029 AM CDT SAT AUG 8 2015 MNZ018-026-081545- NORTH ITASCA-SOUTH ITASCA- 1029 AM CDT SAT AUG 8 2015 ...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL ITASCA COUNTY... AT 1029 AM CDT...A STRONG THUNDERSTORM WAS NEAR TACONITE...OR 7 MILES NORTHWEST OF HILL ANNEX MINE STATE PARK...MOVING EAST AT 25 MPH. WIND GUSTS UP TO 35 MPH...DIME SIZE HAIL...HEAVY DOWNPOURS...AND OCCASIONAL CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH THIS STORM. THIS STORM WILL BE NEAR... KEEWATIN AND NASHWAUK AROUND 1045 AM CDT. OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE LAWRENCE LAKE AND BUCK LAKE. SEEK SHELTER INSIDE A STURDY BUILDING AND AWAY FROM WINDOWS UNTIL THIS STORM PASSES. IF YOU ARE ON OR NEAR ONE OF THE MANY AREA LAKES...GET OFF OF THE WATER IMMEDIATELY AND SEEK SHELTER ON SHORE INSIDE A STURDY BUILDING. LAT...LON 4734 9347 4749 9349 4757 9307 4735 9307 TIME...MOT...LOC 1529Z 262DEG 23KT 4741 9337 MOORE
Local storm report, Aug 8, 1:55 PM CDT, 1 hour 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
155 PM CDT SAT AUG 08 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0153 PM HEAVY RAIN 6 ENE HACKENSACK 46.96N 94.41W
08/08/2015 M2.07 INCH CASS MN TRAINED SPOTTER
TOTAL FOR TODAY. 0.23 INCHES FELL THIS MORNING.
&&
KLHLocal storm report, Aug 8, 2:05 PM CDT, 1 hour 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
205 PM CDT SAT AUG 08 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0202 PM HAIL 2 WSW LONGVILLE 46.98N 94.25W
08/08/2015 E0.25 INCH CASS MN TRAINED SPOTTER
&&
KLHSpecial weather statement, Aug 8, 2:27 PM CDT, 49 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DULUTH MN 227 PM CDT SAT AUG 8 2015 MNZ025-035-082000- NORTH CASS-NORTHERN AITKIN- 227 PM CDT SAT AUG 8 2015 ...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL CASS AND NORTHWESTERN AITKIN COUNTIES... AT 226 PM CDT...A STRONG THUNDERSTORM WAS 8 MILES NORTH OF OUTING... OR 21 MILES SOUTHWEST OF SCHOOLCRAFT STATE PARK...MOVING EAST AT 30 MPH. WIND GUSTS UP TO 35 MPH...DIME SIZE HAIL...TORRENTIAL RAINFALL...AND FREQUENT CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH THIS STORM. THIS STORM WILL BE NEAR... SWATARA AROUND 255 PM CDT. HILL CITY AROUND 300 PM CDT. OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE THUNDER LAKE... WASHBURN LAKE...LAURA LAKE...HAYPOINT...WHITE ELK LAKE...BAIN AND LAKE ROOSEVELT. SEEK SHELTER INSIDE A STURDY BUILDING AND AWAY FROM WINDOWS UNTIL THIS STORM PASSES. IF YOU ARE ON OR NEAR ONE OF THE MANY AREA LAKES...GET OFF OF THE WATER IMMEDIATELY AND SEEK SHELTER ON SHORE INSIDE A STURDY BUILDING. LAT...LON 4684 9410 4703 9409 4702 9356 4679 9357 TIME...MOT...LOC 1926Z 273DEG 26KT 4694 9399 MOORE
Local storm report, Aug 8, 3:08 PM CDT, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
308 PM CDT SAT AUG 08 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0250 PM HAIL 4 N DEER RIVER 47.39N 93.79W
08/08/2015 E0.25 INCH ITASCA MN TRAINED SPOTTER
SMALL BRANCHES DOWN.
&&
JJMThe office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 8:40 PM CDT | Dense Fog Advisory | DLH | Carlton, Cook, Lake, Pine, Saint Louis | 13 hr |
| Aug 7, 9:18 PM CDT | Special Weather Statement | DLH | Koochiching | 87 min |
| Aug 7, 10:12 PM CDT | Special Weather Statement | DLH | Koochiching | 33 min |
| Aug 7, 10:42 PM CDT | Special Weather Statement | DLH | Koochiching | 18 min |
| Aug 7, 11:01 PM CDT | Special Weather Statement | DLH | Koochiching | 14 min |
| Aug 7, 11:20 PM CDT | Special Weather Statement | DLH | Koochiching | 25 min |
| Aug 7, 11:48 PM CDT | Special Weather Statement | DLH | Koochiching | 12 min |
| Aug 8, 12:03 AM CDT | Special Weather Statement | DLH | Koochiching | 27 min |
| Aug 8, 12:28 AM CDT | Special Weather Statement | DLH | Koochiching | 32 min |
| Aug 8, 1:08 AM CDT | Special Weather Statement | DLH | Saint Louis | 37 min |
| Aug 8, 1:12 AM CDT | Special Weather Statement | DLH | Itasca | 33 min |
| Aug 8, 1:45 AM CDT | Special Weather Statement | DLH | Itasca | 30 min |
| Aug 8, 2:00 AM CDT | Special Weather Statement | DLH | Cass | 30 min |
| Aug 8, 2:11 AM CDT | Special Weather Statement | DLH | Itasca | 34 min |
| Aug 8, 2:28 AM CDT | Special Weather Statement | DLH | Cass | 32 min |
| Aug 8, 2:53 AM CDT | Special Weather Statement | DLH | Itasca | 37 min |
| Aug 8, 4:57 AM CDT | Special Weather Statement | DLH | Wadena | 33 min |
| Aug 8, 5:33 AM CDT | Special Weather Statement | DLH | Crow Wing | 27 min |
| Aug 8, 5:57 AM CDT | Special Weather Statement | DLH | Crow Wing | 33 min |
| Aug 8, 6:38 AM CDT | Special Weather Statement | DLH | Crow Wing | 22 min |
| Aug 8, 6:57 AM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Crow Wing | 18 min |
| Aug 8, 7:20 AM CDT | Special Weather Statement | DLH | Crow Wing | 25 min |
| Aug 8, 7:44 AM CDT | Special Weather Statement | DLH | Crow Wing | 31 min |
| Aug 8, 9:43 AM CDT | Special Weather Statement | DLH | Itasca | 17 min |
| Aug 8, 10:11 AM CDT | Special Weather Statement | DLH | Itasca | 19 min |
| Aug 8, 10:29 AM CDT | Special Weather Statement | DLH | Itasca | 16 min |
| Aug 8, 10:37 AM CDT | Severe Thunderstorm Warning | DLH | Itasca, Saint Louis | 23 min |
| Aug 8, 2:09 PM CDT | Severe Thunderstorm Warning | DLH | Cass, Itasca | 36 min |
| Aug 8, 2:27 PM CDT | Special Weather Statement | DLH | Cass | 33 min |
| Aug 8, 2:51 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Cass, Crow Wing | 24 min |
| Aug 8, 2:56 PM CDT | Severe Thunderstorm Warning | DLH | Itasca | 34 min |
| Aug 8, 3:21 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 24 min |
| Aug 8, 3:34 PM CDT | Severe Thunderstorm Warning | DLH | Crow Wing | 26 min |
| Aug 8, 3:46 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin | 29 min |
| Aug 8, 3:50 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 25 min |
| Aug 8, 4:06 PM CDT | Severe Thunderstorm Warning | DLH | Lake, Saint Louis | 24 min |
| Aug 8, 4:11 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 19 min |
| Aug 8, 4:16 PM CDT | Special Weather Statement | DLH | Aitkin | 29 min |
| Aug 8, 4:24 PM CDT | Tornado Warning | DLH | Saint Louis | 36 min |
| Aug 8, 4:29 PM CDT | Severe Thunderstorm Warning | DLH | Lake, Saint Louis | 31 min |
| Aug 8, 4:46 PM CDT | Special Weather Statement | DLH | Carlton | 29 min |
| Aug 8, 4:53 PM CDT | Areal Flood Advisory | DLH | Lake, Saint Louis | 3 hr |
| Aug 8, 4:58 PM CDT | Severe Thunderstorm Warning | DLH | Lake | 32 min |
| Aug 8, 5:03 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Carlton | 27 min |
| Aug 8, 5:29 PM CDT | Severe Thunderstorm Warning | DLH | Carlton, Pine | 31 min |
| Aug 8, 5:36 PM CDT | Areal Flood Advisory | DLH | Aitkin, Cass, Crow Wing | 5 hr |
| Aug 8, 5:50 PM CDT | Special Weather Statement | DLH | Aitkin | 10 min |
| Aug 8, 5:58 PM CDT | Severe Thunderstorm Warning | DLH | Carlton, Pine | 47 min |
| Aug 8, 6:06 PM CDT | Special Weather Statement | DLH | Aitkin | 24 min |
| Aug 8, 6:34 PM CDT | Special Weather Statement | DLH | Aitkin | 26 min |
| Aug 8, 6:48 PM CDT | Special Weather Statement | DLH | Cook | 27 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2015Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.