Alert archive / Michigan / Special Weather Statements in 2017

Special Weather Statement, NWS Marquette, MI

July 6, 2017Gogebic County, Michigan

NWS Marquette, MI issued this special weather statement at Jul 6, 2017, 6:21 PM CDT for Gogebic County, Michigan. It was in force for 39 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 6, 2017, 6:21 PM CDT (23:21 UTC)
Expired
Jul 6, 2017, 7:00 PM CDT
In force
39 min
Issued by
NWS Marquette, MI

County Gogebic County, MI

The radar

The Duluth radar (KDLH), 165 km from the middle of the area, began a volume at 23:21 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 12:00Z, 11.4 hours before the alert went out and 276 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 12:00Z on 2017-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 999 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 12:00Z on 2017-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 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
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

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 6, 3:25 PM CDT, 2 hours 56 minutes earlier.

Area forecast discussion, Jul 6, 3:25 PM CDT, 2 hours 56 minutes before
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Hazardous weather outlook, Jul 6, 2:45 PM CDT, 3 hours 36 minutes before
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In the hours before

Local storm report, Jul 6, 2:57 PM CDT, 3 hours 24 minutes before
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Special weather statement, Jul 6, 6:11 PM CDT, 10 minutes before
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Special weather statement, Jul 6, 6:21 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 12:50 AM CDTSevere Thunderstorm WarningMQTKeweenaw25 min
Jul 6, 12:59 AM CDTSpecial Marine WarningMQT91 min
Jul 6, 3:35 AM CDTSpecial Marine WarningMQT85 min
Jul 6, 5:03 AM CDTSpecial Weather StatementMQTAlger27 min
Jul 6, 5:27 AM CDTSpecial Weather StatementMQTLuce33 min
Jul 6, 6:19 AM CDTSpecial Weather StatementMQTGogebic26 min
Jul 6, 6:26 AM CDTSevere Thunderstorm WarningMQTGogebic49 min
Jul 6, 7:23 AM CDTSpecial Weather StatementMQTOntonagon37 min
Jul 6, 7:46 AM CDTSpecial Weather StatementMQTMenominee44 min
Jul 6, 7:54 AM CDTSevere Thunderstorm WarningMQTDelta, Menominee36 min
Jul 6, 8:02 AM CDTSpecial Marine WarningMQT58 min
Jul 6, 8:12 AM CDTSpecial Weather StatementMQTBaraga, Houghton, Iron, Ontonagon63 min
Jul 6, 9:36 AM CDTSpecial Weather StatementMQTDickinson, Marquette39 min
Jul 6, 9:45 AM CDTSpecial Marine WarningMQT60 min
Jul 6, 10:36 AM CDTSpecial Weather StatementMQTAlger, Schoolcraft39 min
Jul 6, 12:04 PM CDTSpecial Weather StatementMQTLuce26 min
Jul 6, 4:17 PM CDTSpecial Marine WarningMQT118 min
Jul 6, 6:10 PM CDTSevere Thunderstorm WarningMQTHoughton, Ontonagon35 min
Jul 6, 6:11 PM CDTSpecial Weather StatementMQTHoughton49 min
Jul 6, 6:42 PM CDTSevere Thunderstorm WarningMQTBaraga, Houghton, Iron, Ontonagon48 min
Jul 6, 6:58 PM CDTSpecial Weather StatementMQTGogebic47 min

Nearby

Special Weather Statements in Michigan, 2017Every special weather statement 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.