Alert archive / Michigan / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 43, NWS Marquette, MI
NWS Marquette, MI issued this severe thunderstorm warning at Jul 6, 2017, 7:42 PM EDT for 4 counties in Michigan. It was in force for 48 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
- Jul 6, 2017, 7:42 PM EDT (23:42 UTC)
- Expired
- Jul 6, 2017, 8:30 PM EDT
- In force
- 48 min
- Issued by
- NWS Marquette, MI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Baraga County, MI, Houghton County, MI, Iron County, MI, Ontonagon County, MI
The radar
The Marquette radar (KMQT), 90 km from the middle of the area, began a volume at 23:46 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 |
|---|---|---|---|
| Jul 6, 6:54 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.7 hours before the alert went out and 248 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
- 999 J/kg
- Mixed-layer CIN
- -115 J/kg
- Mixed-layer LCL
- 1184 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 94 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 Marquette, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 6, 7:34 PM EDT, 8 minutes earlier.
Area forecast discussion, Jul 6, 7:34 PM EDT, 8 minutes before
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Local storm report, Jul 6, 3:57 PM EDT, 3 hours 45 minutes before
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</html>The office that day
Everything else NWS Marquette, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 1:50 AM EDT | Severe Thunderstorm Warning | MQT | Keweenaw | 25 min |
| Jul 6, 1:59 AM EDT | Special Marine Warning | MQT | 91 min | |
| Jul 6, 4:35 AM EDT | Special Marine Warning | MQT | 85 min | |
| Jul 6, 6:03 AM EDT | Special Weather Statement | MQT | Alger | 27 min |
| Jul 6, 6:27 AM EDT | Special Weather Statement | MQT | Luce | 33 min |
| Jul 6, 7:19 AM EDT | Special Weather Statement | MQT | Gogebic | 26 min |
| Jul 6, 7:26 AM EDT | Severe Thunderstorm Warning | MQT | Gogebic | 49 min |
| Jul 6, 8:23 AM EDT | Special Weather Statement | MQT | Ontonagon | 37 min |
| Jul 6, 8:46 AM EDT | Special Weather Statement | MQT | Menominee | 44 min |
| Jul 6, 8:54 AM EDT | Severe Thunderstorm Warning | MQT | Delta, Menominee | 36 min |
| Jul 6, 9:02 AM EDT | Special Marine Warning | MQT | 58 min | |
| Jul 6, 9:12 AM EDT | Special Weather Statement | MQT | Baraga, Houghton, Iron, Ontonagon | 63 min |
| Jul 6, 10:36 AM EDT | Special Weather Statement | MQT | Dickinson, Marquette | 39 min |
| Jul 6, 10:45 AM EDT | Special Marine Warning | MQT | 60 min | |
| Jul 6, 11:36 AM EDT | Special Weather Statement | MQT | Alger, Schoolcraft | 39 min |
| Jul 6, 1:04 PM EDT | Special Weather Statement | MQT | Luce | 26 min |
| Jul 6, 5:17 PM EDT | Special Marine Warning | MQT | 118 min | |
| Jul 6, 7:10 PM EDT | Severe Thunderstorm Warning | MQT | Houghton, Ontonagon | 35 min |
| Jul 6, 7:11 PM EDT | Special Weather Statement | MQT | Houghton | 49 min |
| Jul 6, 7:21 PM EDT | Special Weather Statement | MQT | Gogebic | 39 min |
| Jul 6, 7:58 PM EDT | Special Weather Statement | MQT | Gogebic | 47 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2017Every severe thunderstorm warning in 2017
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.