Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 162, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Aug 27, 2018, 1:52 AM CDT for Cass County, Itasca County, Minnesota. It was in force for 38 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 27, 2018, 1:52 AM CDT (06:52 UTC)
- Expired
- Aug 27, 2018, 2:30 AM CDT
- In force
- 38 min
- Issued by
- NWS Duluth, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Cass County, MN, Itasca County, MN
The radar
The Duluth radar (KDLH), 141 km from the middle of the area, began a volume at 06:54 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 26, 9:48 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
International Fa, MN (KINL), launched 00:00Z, 6.9 hours before the alert went out and 157 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
- 33 J/kg
- Mixed-layer CIN
- -321 J/kg
- Mixed-layer LCL
- 967 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 245 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 Aug 27, 12:14 AM CDT, 1 hour 38 minutes earlier.
Area forecast discussion, Aug 27, 12:14 AM CDT, 1 hour 38 minutes before
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Special weather statement, Aug 26, 11:40 PM CDT, 2 hours 12 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 |
|---|---|---|---|---|
| Aug 26, 11:40 PM CDT | Special Weather Statement | DLH | Koochiching | 20 min |
| Aug 27, 12:19 AM CDT | Special Weather Statement | DLH | Koochiching | 26 min |
| Aug 27, 12:57 AM CDT | Special Weather Statement | DLH | Koochiching | 33 min |
| Aug 27, 1:30 AM CDT | Special Weather Statement | DLH | Koochiching | 30 min |
| Aug 27, 1:49 AM CDT | Severe Thunderstorm Warning | DLH | Koochiching, Saint Louis | 41 min |
| Aug 27, 2:30 AM CDT | Severe Thunderstorm Warning | DLH | Koochiching, Saint Louis | 60 min |
| Aug 27, 3:34 AM CDT | Special Weather Statement | DLH | Saint Louis | 26 min |
| Aug 27, 4:07 AM CDT | Special Weather Statement | DLH | Lake | 23 min |
| Aug 27, 4:47 AM CDT | Special Weather Statement | DLH | 28 min | |
| Aug 27, 2:17 PM CDT | Special Weather Statement | DLH | Aitkin, Pine | 13 min |
| Aug 27, 2:30 PM CDT | Severe Thunderstorm Warning | DLH | Pine | 45 min |
| Aug 27, 3:09 PM CDT | Special Weather Statement | DLH | Carlton | 21 min |
| Aug 27, 4:15 PM CDT | Special Weather Statement | DLH | Crow Wing | 15 min |
| Aug 27, 4:31 PM CDT | Special Weather Statement | DLH | Aitkin | 14 min |
| Aug 27, 5:00 PM CDT | Special Marine Warning | DLH | 60 min | |
| Aug 27, 5:13 PM CDT | Special Weather Statement | DLH | Pine | 17 min |
| Aug 27, 5:34 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Pine | 26 min |
| Aug 27, 5:58 PM CDT | Severe Thunderstorm Warning | DLH | Carlton, Pine | 47 min |
| Aug 27, 6:00 PM CDT | Flash Flood Warning | DLH | Carlton, Pine | 3 hr |
| Aug 27, 3:13 PM CDT | Special Weather Statement | DLH | Bayfield, Douglas | 17 min |
| Aug 27, 3:26 PM CDT | Special Weather Statement | DLH | Burnett | 19 min |
| Aug 27, 3:30 PM CDT | Special Weather Statement | DLH | Douglas | 30 min |
| Aug 27, 3:36 PM CDT | Special Weather Statement | DLH | Douglas | 24 min |
| Aug 27, 3:50 PM CDT | Special Weather Statement | DLH | Burnett | 10 min |
| Aug 27, 4:01 PM CDT | Special Weather Statement | DLH | Douglas, Washburn | 14 min |
| Aug 27, 4:02 PM CDT | Special Weather Statement | DLH | Bayfield | 43 min |
| Aug 27, 4:12 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield, Douglas | 33 min |
| Aug 27, 4:27 PM CDT | Flash Flood Warning | DLH | Bayfield, Douglas | 6 hr |
| Aug 27, 4:40 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield, Sawyer | 50 min |
| Aug 27, 5:14 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Iron | 46 min |
| Aug 27, 6:00 PM CDT | Special Weather Statement | DLH | Iron | 30 min |
| Aug 27, 6:34 PM CDT | Severe Thunderstorm Warning | DLH | Burnett, Douglas, Washburn | 41 min |
| Aug 27, 6:58 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield, Sawyer, Washburn | 47 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.