Alert archive / Michigan / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 21, NWS Marquette, MI
NWS Marquette, MI issued this severe thunderstorm warning at Jun 17, 2018, 6:49 PM EDT for 4 counties in Michigan. It was in force for 56 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 17, 2018, 6:49 PM EDT (22:49 UTC)
- Expired
- Jun 17, 2018, 7:45 PM EDT
- In force
- 56 min
- Issued by
- NWS Marquette, MI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Baraga County, MI, Houghton County, MI, Iron County, MI, Ontonagon County, MI
The radar
The Marquette radar (KMQT), 98 km from the middle of the area, began a volume at 22:53 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 17, 7:04 PM EDT | TSTM WND GST 48 | 1 E Trout Creek, MI | MDOT RAWS RECORDED 48.3 MPH WIND GUST. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 17, 4:46 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.8 hours before the alert went out and 228 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
- 1403 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 1190 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 157 m²/s²
- 0-3 km storm-relative helicity
- 122 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
911
WUUS53 KMQT 172249
SVRMQT
MIC013-061-071-131-172345-
/O.NEW.KMQT.SV.W.0021.180617T2249Z-180617T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Marquette MI
649 PM EDT SUN JUN 17 2018
The National Weather Service in Marquette has issued a
* Severe Thunderstorm Warning for...
Northwestern Iron County in south central Upper Michigan...
Southwestern Houghton County in western Upper Michigan...
Southwestern Baraga County in north central Upper Michigan...
Southeastern Ontonagon County in western Upper Michigan...
* Until 745 PM EDT/645 PM CDT/
* At 649 PM EDT/549 PM CDT/, a severe thunderstorm was located near
Kenton, or 28 miles southeast of Ontonagon, moving east at 35 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Covington, Kenton, U.S. 141 between Covington and Amasa, Sidnaw,
Trout Creek, Echo Lake, Bond Falls, King Lake, Watton, Ned Lake and
Bone Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4642 8919 4668 8915 4655 8824 4624 8835
TIME...MOT...LOC 2249Z 283DEG 32KT 4652 8901
HAIL...<.75IN
WIND...70MPH
$$
KCW2 follow-up statements
187
WWUS53 KMQT 172316
SVSMQT
Severe Weather Statement
National Weather Service Marquette MI
716 PM EDT SUN JUN 17 2018
MIC131-172325-
/O.CAN.KMQT.SV.W.0021.000000T0000Z-180617T2345Z/
Ontonagon MI-
716 PM EDT SUN JUN 17 2018
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ONTONAGON COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A severe thunderstorm watch remains in effect until 100 AM
EDT/midnight CDT/ for north central Upper, western Upper and south
central Upper Michigan.
LAT...LON 4635 8882 4662 8874 4655 8824 4624 8835
TIME...MOT...LOC 2315Z 283DEG 32KT 4647 8867
$$
MIC013-061-071-172345-
/O.CON.KMQT.SV.W.0021.000000T0000Z-180617T2345Z/
Iron MI-Houghton MI-Baraga MI-
716 PM EDT SUN JUN 17 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM
EDT/645 PM CDT/ FOR NORTH CENTRAL IRON...SOUTH CENTRAL HOUGHTON AND
SOUTHWESTERN BARAGA COUNTIES...
At 715 PM EDT/615 PM CDT/, a severe thunderstorm was located near
Sidnaw, or 22 miles southwest of L'anse, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Covington, U.S. 141 between Covington and Amasa, Sidnaw, King Lake,
Watton, Ned Lake and Bone Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4635 8882 4662 8874 4655 8824 4624 8835
TIME...MOT...LOC 2315Z 283DEG 32KT 4647 8867
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
KCW735
WWUS53 KMQT 172341
SVSMQT
Severe Weather Statement
National Weather Service Marquette MI
741 PM EDT SUN JUN 17 2018
MIC013-061-071-172350-
/O.EXP.KMQT.SV.W.0021.000000T0000Z-180617T2345Z/
Iron MI-Houghton MI-Baraga MI-
741 PM EDT SUN JUN 17 2018
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL IRON...SOUTH
CENTRAL HOUGHTON AND SOUTHWESTERN BARAGA COUNTIES WILL EXPIRE AT 745
PM EDT/645 PM CDT/...
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire.
A severe thunderstorm watch remains in effect until 100 AM
EDT/midnight CDT/ for north central Upper, western Upper and south
central Upper Michigan.
LAT...LON 4635 8882 4662 8874 4655 8824 4624 8835
TIME...MOT...LOC 2340Z 283DEG 32KT 4642 8839
$$
KCWThe office that day
Everything else NWS Marquette, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 11:58 PM EDT | Special Weather Statement | MQT | Houghton | 47 min |
| Jun 17, 12:22 AM EDT | Severe Thunderstorm Warning | MQT | Houghton, Keweenaw | 23 min |
| Jun 17, 12:26 AM EDT | Special Marine Warning | MQT | 23 min | |
| Jun 17, 3:09 AM EDT | Areal Flood Advisory | MQT | Houghton, Keweenaw | 3 hr |
| Jun 17, 3:46 AM EDT | Flash Flood Warning | MQT | Baraga, Houghton, Ontonagon | 8 hr |
| Jun 17, 5:53 AM EDT | Flash Flood Warning | MQT | Gogebic, Houghton, Iron, Ontonagon | 6 hr |
| Jun 17, 10:23 AM EDT | Small Craft Advisory | MQT | 17 hr | |
| Jun 17, 11:44 AM EDT | Flash Flood Warning | MQT | Houghton | 8 hr |
| Jun 17, 5:06 PM EDT | Special Marine Warning | MQT | 54 min | |
| Jun 17, 5:13 PM EDT | Severe Thunderstorm Warning | MQT | Baraga, Marquette | 62 min |
| Jun 17, 5:37 PM EDT | Flash Flood Warning | MQT | Gogebic | 3 hr |
| Jun 17, 5:41 PM EDT | Severe Thunderstorm Warning | MQT | Gogebic, Ontonagon | 79 min |
| Jun 17, 5:49 PM EDT | Areal Flood Advisory | MQT | Houghton, Ontonagon | 3 hr |
| Jun 17, 5:57 PM EDT | Severe Thunderstorm Warning | MQT | Baraga, Houghton, Ontonagon | 42 min |
| Jun 17, 6:48 PM EDT | Areal Flood Advisory | MQT | Alger, Marquette | 3 hr |
| Jun 17, 6:52 PM EDT | Severe Thunderstorm Warning | MQT | Gogebic, Iron, Ontonagon | 53 min |
| Jun 17, 7:49 PM EDT | Flash Flood Warning | MQT | Marquette | 3 hr |
Nearby
Severe Thunderstorm Warnings in Michigan, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.