Alert archive / Michigan / Special Weather Statements in 2021

Special Weather Statement, NWS Marquette, MI

July 27, 2021Schoolcraft County, Michigan

NWS Marquette, MI issued this special weather statement at Jul 27, 2021, 1:49 AM EDT for Schoolcraft County, Michigan. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 27, 2021, 1:49 AM EDT (05:49 UTC)
Expired
Jul 27, 2021, 2:45 AM EDT
In force
56 min
Issued by
NWS Marquette, MI

County Schoolcraft County, MI

The radar

The Marquette radar (KMQT), 120 km from the middle of the area, began a volume at 05:51 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 5.8 hours before the alert went out and 206 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 00:00Z on 2021-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 591 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 00:00Z on 2021-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
591 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
2073 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 27, 1:14 AM EDT, 35 minutes earlier.

Area forecast discussion, Jul 27, 1:14 AM EDT, 35 minutes before
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Hazardous weather outlook, Jul 26, 4:21 PM EDT, 9 hours 28 minutes before
Hazardous Weather Outlook
National Weather Service Marquette MI
421 PM EDT Mon Jul 26 2021

MIZ001>007-009>014-084-085-272030-
Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce-
Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft-
Southern Houghton-Northern Schoolcraft-
421 PM EDT Mon Jul 26 2021 /321 PM CDT Mon Jul 26 2021/

This Hazardous Weather Outlook is for portions of western Upper
Michigan and central Upper Michigan.

.DAY ONE...Tonight

Strong to potentially severe thunderstorms will be possible tonight.
Primary hazards in any of the strongest thunderstorms that occur
will be damaging winds, large hail, and heavy downpours.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Thunderstorms will be possible Wednesday into early Thursday.
Primary hazards in any of the strongest thunderstorms that occur
will be gusty winds, hail, and heavy downpours.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to submit reports to the National
Weather Service in Marquette. The public may also submit reports
on our webpage, Facebook page, or on Twitter using #906wx.

LSZ162-240>251-263>267-272030-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
421 PM EDT Mon Jul 26 2021 /321 PM CDT Mon Jul 26 2021/

This Hazardous Weather Outlook is for portions of Eastern Lake
Superior...Central Lake Superior and Western Lake Superior.

.DAY ONE...Tonight

Strong to potentially severe thunderstorms will be possible tonight.
Primary hazards in any of the strongest thunderstorms that occur
will be damaging winds and large hail.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Thunderstorms will be possible Wednesday into early Thursday.
Primary hazards in any of the strongest thunderstorms that occur
will be gusty winds and hail.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to submit reports to the National
Weather Service in Marquette. The public may also submit reports
on our webpage, Facebook page, or on Twitter using #906wx.

LMZ221-248-250-272030-
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
421 PM EDT Mon Jul 26 2021

This Hazardous Weather Outlook is for portions of Northern Lake
Michigan.

.DAY ONE...Tonight

Strong to potentially severe thunderstorms will be possible tonight.
Primary hazards in any of the strongest thunderstorms that occur
will be damaging winds and large hail.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Thunderstorms will be possible Wednesday into early Thursday.
Primary hazards in any of the strongest thunderstorms that occur
will be gusty winds and hail.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to submit reports to the National
Weather Service in Marquette. The public may also submit reports
on our webpage, Facebook page, or on Twitter using #906wx.

lg

In the hours before

Special weather statement, Jul 26, 11:55 PM EDT, 1 hour 54 minutes before
Special Weather Statement
National Weather Service Marquette MI
1155 PM EDT Mon Jul 26 2021

MIZ013-270430-
Delta MI-
1155 PM EDT Mon Jul 26 2021

...SPECIAL WEATHER STATEMENT...

At 1155 PM EDT, Doppler radar was tracking a strong thunderstorm near
Rapid River, or 16 miles northeast of Escanaba, moving east at 15
mph.

Half inch hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Nahma, Isabella, Ensign and Nahma Junction.

LAT...LON 4585 8697 4603 8691 4601 8650 4574 8659
TIME...MOT...LOC 0355Z 282DEG 14KT 4593 8685

EK/07
Special weather statement, Jul 27, 12:03 AM EDT, 1 hour 46 minutes before
Special Weather Statement
National Weather Service Marquette MI
1203 AM EDT Tue Jul 27 2021

MIZ005-010>013-270500-
Marquette MI-Iron MI-Delta MI-Dickinson MI-Menominee MI-
1203 AM EDT Tue Jul 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN IRON...DICKINSON...
NORTHWESTERN DELTA...NORTHERN MENOMINEE AND SOUTHWESTERN MARQUETTE
COUNTIES UNTIL 100 AM EDT/MIDNIGHT CDT/...

At 1202 AM EDT/1102 PM CDT/, Doppler radar was tracking strong
thunderstorms along a line extending from 9 miles northeast of Watson
to near Tipler. Movement was southeast at 75 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Iron Mountain, Kingsford, Iron River, Crystal Falls, Norway, Watson,
Stambaugh, Felch, Powers, La Branche, Channing, Foster City, Squaw
Lake, Hermansville, Witch Lake, Wilson, Spalding, Niagara, Sagola and
Republic.

LAT...LON 4556 8783 4559 8778 4565 8783 4568 8778
      4571 8781 4579 8800 4578 8809 4581 8814
      4587 8807 4592 8810 4599 8837 4599 8849
      4602 8851 4599 8866 4602 8869 4604 8886
      4639 8795 4622 8749 4595 8696 4553 8776
TIME...MOT...LOC 0402Z 304DEG 64KT 4614 8734 4596 8862

EK/07
Local storm report, Jul 27, 12:17 AM EDT, 1 hour 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MARQUETTE MI
1217 AM EDT TUE JUL 27 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1150 PM     HAIL             1 WNW GIBBS CITY        46.23N 88.73W
07/26/2021  M0.70 INCH       IRON               MI   PUBLIC

            TWITTER REPORT OF AT LEAST DIME SIZE HAIL IN
            IRON RIVER, TIME ESTIMATED BY RADAR.

&&

EK
Local storm report, Jul 27, 12:25 AM EDT, 1 hour 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MARQUETTE MI
1225 AM EDT TUE JUL 27 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1030 PM     TSTM WND DMG     IRONWOOD                46.45N 90.15W
07/26/2021                   GOGEBIC            MI   EMERGENCY MNGR

            IRONWOOD PUBLIC SAFETY DEPARTMENT REPORTS
            EXTENSIVE STORM DAMAGE THROUGHOUT GOGEBIC
            COUNTY WITH NUMEROUS TREES AND POWER LINES
            DOWN. TIME ESTIMATED BY RADAR.

&&

EK
Special weather statement, Jul 27, 1:23 AM EDT, 26 minutes before
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Special weather statement, Jul 27, 1:49 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 8:12 PM EDTSevere Thunderstorm WarningMQTDickinson, Menominee33 min
Jul 26, 8:42 PM EDTSevere Thunderstorm WarningMQTDelta, Menominee33 min
Jul 26, 8:58 PM EDTSpecial Weather StatementMQTDelta32 min
Jul 26, 9:13 PM EDTSpecial Marine WarningMQT62 min
Jul 26, 10:01 PM EDTSpecial Weather StatementMQTOntonagon29 min
Jul 26, 10:05 PM EDTSpecial Weather StatementMQTGogebic, Ontonagon25 min
Jul 26, 10:12 PM EDTSevere Thunderstorm WarningMQTGogebic, Ontonagon33 min
Jul 26, 10:36 PM EDTSpecial Weather StatementMQTOntonagon24 min
Jul 26, 10:42 PM EDTSevere Thunderstorm WarningMQTBaraga, Houghton, Iron33 min
Jul 26, 10:43 PM EDTSevere Thunderstorm WarningMQTGogebic, Ontonagon47 min
Jul 26, 11:08 PM EDTSpecial Weather StatementMQTIron52 min
Jul 26, 11:26 PM EDTSevere Thunderstorm WarningMQTGogebic, Iron49 min
Jul 26, 11:53 PM EDTSevere Thunderstorm WarningMQTDickinson, Iron52 min
Jul 26, 11:55 PM EDTSpecial Weather StatementMQTDelta35 min
Jul 27, 12:03 AM EDTSpecial Weather StatementMQTDickinson57 min
Jul 27, 12:43 AM EDTSevere Thunderstorm WarningMQTDelta, Dickinson, Marquette, Menominee32 min
Jul 27, 12:47 AM EDTSevere Thunderstorm WarningMQTDickinson, Menominee43 min
Jul 27, 1:09 AM EDTSevere Thunderstorm WarningMQTDelta, Menominee51 min
Jul 27, 1:11 AM EDTSpecial Marine WarningMQT64 min
Jul 27, 1:23 AM EDTSpecial Weather StatementMQTMenominee52 min
Jul 27, 1:25 AM EDTSpecial Marine WarningMQT42 min
Jul 27, 1:42 AM EDTSpecial Marine WarningMQT63 min

Nearby

Special Weather Statements in Michigan, 2021Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.