Alert archive / Michigan / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 23, NWS Marquette, MI

June 17, 2018Delta County, Marquette County, Menominee County, Michigan

NWS Marquette, MI issued this severe thunderstorm warning at Jun 17, 2018, 8:32 PM EDT for Delta County, Marquette County, Menominee County, Michigan. It was in force for 43 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
Jun 17, 2018, 8:32 PM EDT (00:32 UTC)
Expired
Jun 17, 2018, 9:15 PM EDT
In force
43 min
Issued by
NWS Marquette, MI
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Delta County, MI, Marquette County, MI, Menominee County, MI

The radar

The Marquette radar (KMQT), 62 km from the middle of the area, began a volume at 00:33 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.

IssuedProductOfficeLasted
Jun 17, 4:46 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.5 hours before the alert went out and 179 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 2018-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1303 joules per kilogram.LCLEL10008507005003002001001 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 2018-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 square meters per square second.193958Sfc1 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
1303 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1550 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
181 m²/s²
Significant tornado parameter
0.3
Supercell composite
4.6

Open this sounding in Storm Lab

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 Jun 17, 7:55 PM EDT, 37 minutes earlier.

Area forecast discussion, Jun 17, 7:55 PM EDT, 37 minutes before
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Hazardous weather outlook, Jun 17, 4:27 PM EDT, 4 hours 5 minutes before
Hazardous Weather Outlook
National Weather Service Marquette MI
427 PM EDT Sun Jun 17 2018

MIZ001>007-009>014-084-085-182030-
Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce-
Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft-
Southern Houghton-Northern Schoolcraft-
427 PM EDT Sun Jun 17 2018 /327 PM CDT Sun Jun 17 2018/

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

.DAY ONE...Tonight

Thunderstorms are likely tonight over much of Upper Michigan. A
few storms could be severe with moderate hail and damaging winds.
A few storms could also produce heavy rainfall. See the flood
watch product for further details.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorm chances continue through Monday morning. Heavy
rainfall will be possible. See the flood watch for further
details.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any observed hail, wind damage
or flooding from thunderstorms to the National Weather Service in
Marquette. The public may also submit reports to the National
Weather Service via phone, on our website, or through Facebook or
Twitter.

LSZ162-240>251-263>267-182030-
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-
427 PM EDT Sun Jun 17 2018 /327 PM CDT Sun Jun 17 2018/

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

.DAY ONE...Tonight

There is a chance of thunderstorms tonight. A few storms could be
severe and could contain moderate hail and damaging wind gusts. A
few storms could also produce heavy rainfall.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any observed hail or wind
damage from thunderstorms to the National Weather Service in
Marquette. The public may also submit reports to the National
Weather Service via phone, on our website, or through Facebook or
Twitter.

LMZ221-248-250-182030-
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-
427 PM EDT Sun Jun 17 2018

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

.DAY ONE...Tonight

There is a chance of thunderstorms tonight. A few storms could be
severe and could contain large hail and damaging wind gusts. A
few storms could also produce heavy rainfall.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorm chances continue through Monday morning. Heavy rain
will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any observed hail or wind
damage from thunderstorms to the National Weather Service in
Marquette. The public may also submit reports to the National
Weather Service via phone, on our website, or through Facebook or
Twitter.

KCW

In the hours before

Local storm report, Jun 17, 7:26 PM EDT, 1 hour 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MARQUETTE MI
726 PM EDT SUN JUN 17 2018

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

0704 PM     TSTM WND GST     1 E TROUT CREEK         46.48N 88.99W
06/17/2018  M48 MPH          HOUGHTON           MI   MESONET

            MDOT RAWS RECORDED 48.3 MPH WIND GUST.

&&

LG
Local storm report, Jun 17, 7:29 PM EDT, 1 hour 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MARQUETTE MI
729 PM EDT SUN JUN 17 2018

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

0707 PM     HEAVY RAIN       1 WNW WAKEFIELD         46.48N 89.95W
06/17/2018  M1.20 INCH       GOGEBIC            MI   MESONET

            MDOT RAWS RECORDED 1.2 INCHES OF RAIN THAT
            FELL WITHIN AN HOUR.

&&

LG
Local storm report, Jun 17, 7:31 PM EDT, 1 hour 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MARQUETTE MI
731 PM EDT SUN JUN 17 2018

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

0701 PM     HEAVY RAIN       6 ESE WAKEFIELD         46.44N 89.83W
06/17/2018  M1.12 INCH       GOGEBIC            MI   MESONET

            WKFM4 RECORDED 1.12 INCHES OF RAIN THAT FELL
            WITHIN AN HOUR.

&&

LG
Local storm report, Jun 17, 7:44 PM EDT, 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MARQUETTE MI
744 PM EDT SUN JUN 17 2018

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

0742 PM     HEAVY RAIN       HERMAN                  46.67N 88.37W
06/17/2018  M0.75 INCH       BARAGA             MI   CO-OP OBSERVER

            0.75 INCH OF RAIN FELL IN ONE HOUR, RAIN
            CONTINUES TO FALL.

&&

RJT
Local storm report, Jun 17, 7:46 PM EDT, 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MARQUETTE MI
746 PM EDT SUN JUN 17 2018

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

0650 PM     HEAVY RAIN       5 SSE WATERSMEET        46.20N 89.13W
06/17/2018  M0.93 INCH       GOGEBIC            MI   COCORAHS

            0.93 INCHES OF RAIN FELL WITHIN 40 MINUTES.
            LAKE REPORTEDLY VERY HIGH WITH THE OUTLET
            CULVERT DRAINING POORLY.

&&

LG
Local storm report, Jun 17, 7:57 PM EDT, 35 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 8:16 PM EDTAreal Flood AdvisoryMQTAlger, Delta, Schoolcraft3 hr
Jun 17, 8:23 PM EDTAreal Flood AdvisoryMQTLuce3 hr
Jun 17, 8:30 PM EDTSpecial Weather StatementMQTMenominee60 min
Jun 17, 8:53 PM EDTSpecial Marine WarningMQT97 min
Jun 17, 9:30 PM EDTRiver Flood WarningMQTBaraga, Houghton23 hr
Jun 17, 9:39 PM EDTSpecial Weather StatementMQTMenominee21 min
Jun 17, 9:58 PM EDTAreal Flood AdvisoryMQTMenominee3 hr
Jun 18, 7:45 AM EDTRiver Flood AdvisoryMQTHoughton60 hr
Jun 18, 10:15 AM EDTMarine Dense Fog AdvisoryMQT8 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.