Alert archive / Michigan / Special Weather Statements in 2017

Special Weather Statement, NWS Gaylord, MI

April 10, 2017Chippewa County, Mackinac County, Michigan

NWS Gaylord, MI issued this special weather statement at Apr 10, 2017, 4:47 AM EDT for Chippewa County, Mackinac County, Michigan. It was in force for 58 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: Apr 10, 2017, 4:47 AM EDT (08:47 UTC)
Expired: Apr 10, 2017, 5:45 AM EDT
In force: 58 min
Issued by: NWS Gaylord, MI

Counties Chippewa County, MI, Mackinac County, MI

The radar

The NCL Michigan radar (KAPX), 140 km from the middle of the area, began a volume at 08:47 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, 8.8 hours before the alert went out and 286 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: 1 J/kg
Mixed-layer CIN: -294 J/kg
Mixed-layer LCL: 1327 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 210 m²/s²
0-3 km storm-relative helicity: 270 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Gaylord, MI wrote its last area forecast discussion before this special weather statement went out at Apr 10, 4:05 AM EDT, 42 minutes earlier.

Area forecast discussion, Apr 10, 4:05 AM EDT, 42 minutes before

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Hazardous weather outlook, Apr 10, 4:09 AM EDT, 38 minutes before

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In the hours before

Special weather statement, Apr 10, 4:47 AM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 3:46 AM EDT	Small Craft Advisory	APX		31 hr
Apr 10, 7:24 AM EDT	Special Marine Warning	APX		66 min
Apr 10, 7:46 AM EDT	Special Weather Statement	APX	Wexford	29 min
Apr 10, 8:28 AM EDT	Special Weather Statement	APX	Missaukee	32 min
Apr 10, 8:53 AM EDT	Special Weather Statement	APX	Missaukee, Roscommon	37 min
Apr 10, 9:04 AM EDT	Special Weather Statement	APX	Gladwin	26 min
Apr 10, 9:13 AM EDT	Special Weather Statement	APX	Crawford, Oscoda	32 min
Apr 10, 9:25 AM EDT	Special Weather Statement	APX	Arenac	35 min
Apr 10, 9:32 AM EDT	Special Weather Statement	APX	Ogemaw	28 min
Apr 10, 10:06 AM EDT	Special Marine Warning	APX		54 min
Apr 10, 11:28 AM EDT	Severe Thunderstorm Warning	APX	Leelanau	21 min
Apr 10, 11:30 AM EDT	Special Marine Warning	APX		60 min
Apr 10, 11:49 AM EDT	Special Weather Statement	APX	Antrim	26 min
Apr 10, 12:15 PM EDT	Special Weather Statement	APX	Cheboygan	30 min
Apr 10, 12:40 PM EDT	Special Weather Statement	APX	Cheboygan	20 min

Nearby

Special Weather Statements in Michigan, 2017 Every 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.