Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 59, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Jun 28, 2018, 11:45 AM CDT for Aitkin County, Itasca County, Saint Louis County, Minnesota. It was in force for 31 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
- Jun 28, 2018, 11:45 AM CDT (16:45 UTC)
- Expired
- Jun 28, 2018, 12:16 PM CDT
- In force
- 31 min
- Issued by
- NWS Duluth, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Aitkin County, MN, Itasca County, MN, Saint Louis County, MN
The radar
The Duluth radar (KDLH), 85 km from the middle of the area, began a volume at 16:48 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, 4.8 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2670 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jun 28, 11:33 AM CDT, 12 minutes earlier.
Area forecast discussion, Jun 28, 11:33 AM CDT, 12 minutes before
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</html>Hazardous weather outlook, Jun 28, 9:06 AM CDT, 2 hours 39 minutes before
Hazardous Weather Outlook National Weather Service Duluth MN 906 AM CDT Thu Jun 28 2018 MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-291415- Koochiching-North St. Louis-Northern Cook/Northern Lake- North Itasca-Central St. Louis-Southern Lake/North Shore- Southern Cook/North Shore-North Cass-South Itasca-South Cass- Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis- Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price- 906 AM CDT Thu Jun 28 2018 This Hazardous Weather Outlook is for portions of northeast Minnesota and northwest Wisconsin. .DAY ONE...Today and Tonight There is a slight chance of scattered thunderstorms this afternoon from Brainerd and Walker east to the I-35 corridor and the Twin Ports. Should storms develop, a few may be strong to severe with large hail, torrential rain, and damaging winds the main threats. A tornado or two cannot be completely ruled out. Thunderstorms are likely tonight, mainly north of US Highway 2 in Minnesota. Some storms may be strong to severe with torrential rain, which may lead to localized flooding, and damaging wind gusts the main threats. The risk area includes many recreational and wilderness areas in northern Minnesota, including the Chippewa National Forest, Voyageurs National Park, Kabetogama State Forest, the Superior National Forest, and the Boundary Waters Canoe Area Wilderness. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Strong to severe thunderstorms may be ongoing Friday morning in northern Minnesota and are expected to move out of the Northland by late morning. Hot and humid conditions are expected across much of the Northland Friday afternoon. Heat index values between 90 and 105 degrees are forecast. A Heat Advisory may be needed for portions of central Minnesota and northwest Wisconsin Friday afternoon. Thunderstorms will be possible Friday night into Sunday morning across the Northland. The storms Friday night through Saturday night could be severe and produce heavy rainfall which could lead to flooding. .SPOTTER INFORMATION STATEMENT... Skywarn Spotters may be needed this afternoon into this evening and again later tonight. LSZ121-140>148-291415- Bayfield to Oak Point WI-Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- 906 AM CDT Thu Jun 28 2018 This Hazardous Weather Outlook is for portions of the Nearshore waters of western Lake Superior. .DAY ONE...Today and Tonight A few thunderstorms will be possible this afternoon and evening over far western Lake Superior and again late tonight. Severe storms could occur. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Thunderstorms will be possible Friday morning and again Friday night through Sunday morning. Some of the storms could be severe Friday morning and again Friday night into Saturday night. Melde/Wolfe/Huyck More information may be obtained at the following web address: http://www.weather.gov/duluth (all lower case)
In the hours before
Special weather statement, Jun 28, 10:27 AM CDT, 1 hour 18 minutes before
Special Weather Statement National Weather Service Duluth MN 1027 AM CDT THU JUN 28 2018 MNZ025-026-281600- North Cass-South Itasca- 1027 AM CDT THU JUN 28 2018 ...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL ITASCA AND EASTERN CASS COUNTIES... At 1027 AM CDT, a strong thunderstorm was over Days High Landing, or 15 miles west of Grand Rapids, moving east at 30 mph. Wind gusts up to 35 mph, penny-size hail, heavy downpours, and frequent cloud to ground lightning can be expected with this storm. This storm will be near... Days High Landing around 1030 AM CDT. Pokegama Dam around 1050 AM CDT. Cohasset and Pokegama Lake around 1055 AM CDT. Grand Rapids around 1100 AM CDT. Other locations impacted by this storm include Schoolcraft State Park, La Prairie, and Siseebakwet Lake. Seek shelter inside a sturdy building and away from windows until this storm passes. Get off area lakes and seek shelter on shore in a sturdy shelter or a hard-topped vehicle. LAT...LON 4718 9397 4732 9391 4726 9346 4708 9360 TIME...MOT...LOC 1527Z 288DEG 24KT 4722 9385 BJH
Local storm report, Jun 28, 10:38 AM CDT, 1 hour 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1038 AM CDT THU JUN 28 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0510 PM HAIL 7 N COOK 47.95N 92.66W
06/27/2018 M1.00 INCH ST. LOUIS MN PUBLIC
RESTAURANT AT THE FAR WEST END OF LAKE
VERMILION REPORTED HAIL. HAIL WAS MOSTLY
DIME SIZED WITH A FEW LARGER TO THE SIZE OF
QUARTERS. TIME ESTIMATED FROM RADAR.
&&
BJHLocal storm report, Jun 28, 11:16 AM CDT, 29 minutes before
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</html>Local storm report, Jun 28, 11:21 AM CDT, 24 minutes before
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</html>Local storm report, Jun 28, 11:22 AM CDT, 23 minutes before
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</html>Local storm report, Jun 28, 11:39 AM CDT, 6 minutes before
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</html>The office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 7:03 PM CDT | Special Weather Statement | DLH | Lake | 27 min |
| Jun 27, 7:45 PM CDT | Special Weather Statement | DLH | 30 min | |
| Jun 27, 8:59 PM CDT | Special Weather Statement | DLH | Carlton | 31 min |
| Jun 28, 8:50 AM CDT | Special Weather Statement | DLH | Cass | 25 min |
| Jun 28, 9:16 AM CDT | Special Weather Statement | DLH | Cass | 29 min |
| Jun 28, 9:45 AM CDT | Special Weather Statement | DLH | Itasca | 15 min |
| Jun 28, 9:58 AM CDT | Special Weather Statement | DLH | Itasca | 32 min |
| Jun 28, 10:27 AM CDT | Special Weather Statement | DLH | Itasca | 33 min |
| Jun 28, 10:45 AM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Cass, Itasca | 30 min |
| Jun 28, 11:16 AM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Itasca | 29 min |
| Jun 28, 12:13 PM CDT | Special Weather Statement | DLH | Cass | 32 min |
| Jun 28, 12:34 PM CDT | Special Weather Statement | DLH | Carlton | 11 min |
| Jun 28, 12:45 PM CDT | Special Weather Statement | DLH | Cass | 30 min |
| Jun 28, 12:46 PM CDT | Special Weather Statement | DLH | Carlton | 29 min |
| Jun 28, 12:53 PM CDT | Special Weather Statement | DLH | Aitkin | 37 min |
| Jun 28, 1:03 PM CDT | Severe Thunderstorm Warning | DLH | Cass, Itasca | 29 min |
| Jun 28, 1:14 PM CDT | Special Weather Statement | DLH | Carlton | 31 min |
| Jun 28, 1:25 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Cass, Itasca | 50 min |
| Jun 28, 1:41 PM CDT | Special Weather Statement | DLH | Carlton | 34 min |
| Jun 28, 1:51 PM CDT | Special Marine Warning | DLH | 54 min | |
| Jun 28, 2:02 PM CDT | Special Weather Statement | DLH | Carlton | 13 min |
| Jun 28, 2:24 PM CDT | Special Weather Statement | DLH | Aitkin | 21 min |
| Jun 28, 2:30 PM CDT | Severe Thunderstorm Warning | DLH | Cass, Itasca | 45 min |
| Jun 28, 2:44 PM CDT | Special Weather Statement | DLH | Aitkin | 31 min |
| Jun 28, 2:52 PM CDT | Severe Thunderstorm Warning | DLH | Cass, Itasca | 38 min |
| Jun 28, 3:00 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Carlton, Saint Louis | 30 min |
| Jun 28, 3:20 PM CDT | Special Weather Statement | DLH | Aitkin | 25 min |
| Jun 28, 3:25 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Cass, Itasca | 35 min |
| Jun 28, 3:30 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Carlton, Saint Louis | 30 min |
| Jun 28, 3:43 PM CDT | Special Weather Statement | DLH | Cass | 32 min |
| Jun 28, 3:49 PM CDT | Severe Thunderstorm Warning | DLH | Carlton, Saint Louis | 41 min |
| Jun 28, 3:55 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Cass, Itasca | 50 min |
| Jun 28, 4:26 PM CDT | Severe Thunderstorm Warning | DLH | Carlton, Pine | 49 min |
| Jun 28, 4:35 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Carlton, Saint Louis | 40 min |
| Jun 28, 5:12 PM CDT | Severe Thunderstorm Warning | DLH | Carlton, Pine | 48 min |
| Jun 28, 5:15 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Carlton, Pine | 30 min |
| Jun 28, 5:34 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Carlton, Pine | 26 min |
| Jun 28, 5:46 PM CDT | Severe Thunderstorm Warning | DLH | Carlton, Pine | 29 min |
| Jun 28, 5:59 PM CDT | Special Weather Statement | DLH | Pine | 16 min |
| Jun 28, 6:10 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Pine | 50 min |
| Jun 28, 4:31 PM CDT | Special Weather Statement | DLH | Ashland | 14 min |
| Jun 28, 6:02 PM CDT | Special Weather Statement | DLH | Washburn | 28 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2018Every severe thunderstorm warning in 2018
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.