Alert archive / Michigan / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 3, NWS Marquette, MI

May 25, 2021Baraga County, Houghton County, Ontonagon County, Michigan

NWS Marquette, MI issued this severe thunderstorm warning at May 25, 2021, 6:55 PM EDT for Baraga County, Houghton County, Ontonagon County, Michigan. It was in force for 35 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: May 25, 2021, 6:55 PM EDT (22:55 UTC)
Expired: May 25, 2021, 7:30 PM EDT
In force: 35 min
Issued by: NWS Marquette, MI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Baraga County, MI, Houghton County, MI, Ontonagon County, MI

The radar

The Marquette radar (KMQT), 88 km from the middle of the area, began a volume at 22:57 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
May 25, 6:55 PM EDT	TSTM WND DMG	Mass City, MI	TREE DOWN ON POWERLINE. DELAYED REPORT.

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
May 25, 3:53 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.9 hours before the alert went out and 278 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 96 J/kg
Mixed-layer CIN: -140 J/kg
Mixed-layer LCL: 1118 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

985 
WUUS53 KMQT 252255
SVRMQT
MIC013-061-131-252330-
/O.NEW.KMQT.SV.W.0003.210525T2255Z-210525T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Marquette MI
655 PM EDT Tue May 25 2021

The National Weather Service in Marquette has issued a

* Severe Thunderstorm Warning for...
  Central Houghton County in western Upper Michigan...
  Northern Baraga County in north central Upper Michigan...
  Northeastern Ontonagon County in western Upper Michigan...

* Until 730 PM EDT.

* At 655 PM EDT, severe thunderstorms were located along a line
  extending from 9 miles east of Ontonagon to near Rockland, moving
  east at 85 mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* Severe thunderstorms will be near...
  Nisula around 710 PM EDT.
  Baraga, Chassell and South Range around 715 PM EDT.

Other locations in the path of these severe thunderstorms include
L'anse, The Lower Entrance of Portage Canal, Keweenaw Bay and Skanee.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4696 8920 4720 8806 4716 8813 4703 8818
      4703 8807 4671 8809 4666 8924
TIME...MOT...LOC 2255Z 257DEG 72KT 4691 8912 4670 8913 

HAIL...1.00IN
WIND...70MPH
 
$$

BW

1 follow-up statement

996 
WWUS53 KMQT 252321
SVSMQT

Severe Weather Statement
National Weather Service Marquette MI
721 PM EDT Tue May 25 2021

MIC131-252331-
/O.CAN.KMQT.SV.W.0003.000000T0000Z-210525T2330Z/
Ontonagon MI-
721 PM EDT Tue May 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ONTONAGON COUNTY
IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
north central Upper and western Upper Michigan.

LAT...LON 4713 8813 4703 8818 4703 8814 4671 8816
      4669 8866 4704 8864 4718 8813
TIME...MOT...LOC 2321Z 258DEG 51KT 4698 8860 4677 8861 

$$

MIC013-061-252330-
/O.CON.KMQT.SV.W.0003.000000T0000Z-210525T2330Z/
Houghton MI-Baraga MI-
721 PM EDT Tue May 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR EAST CENTRAL HOUGHTON AND NORTHERN BARAGA COUNTIES...

At 721 PM EDT, severe thunderstorms were located along a line
extending from near Chassell to near Baraga, moving east at 60 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
  Baraga, Chassell, L'anse, The Lower Entrance of Portage Canal, 
  Keweenaw Bay and Skanee.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4713 8813 4703 8818 4703 8814 4671 8816
      4669 8866 4704 8864 4718 8813
TIME...MOT...LOC 2321Z 258DEG 51KT 4698 8860 4677 8861 

HAIL...1.00IN
WIND...70MPH
 
$$

BW

The office that day

Everything else NWS Marquette, MI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 24, 9:44 PM EDT	Small Craft Advisory	MQT		55 hr
May 25, 2:55 PM EDT	Special Marine Warning	MQT		35 min
May 25, 3:48 PM EDT	Special Weather Statement	MQT	Schoolcraft	42 min
May 25, 4:40 PM EDT	Special Marine Warning	MQT		19 min
May 25, 6:12 PM EDT	Special Weather Statement	MQT	Gogebic	33 min
May 25, 6:28 PM EDT	Severe Thunderstorm Warning	MQT	Ontonagon	32 min
May 25, 6:31 PM EDT	Severe Thunderstorm Warning	MQT	Houghton, Keweenaw	29 min
May 25, 6:34 PM EDT	Special Marine Warning	MQT		41 min
May 25, 7:12 PM EDT	Special Marine Warning	MQT		63 min
May 25, 7:30 PM EDT	Severe Thunderstorm Warning	MQT	Baraga, Houghton, Marquette	30 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2021 Every severe thunderstorm warning in 2021

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.