Alert archive / Michigan / Special Weather Statements in 2017

Special Weather Statement, NWS Gaylord, MI

July 7, 2017Chippewa County, Michigan

NWS Gaylord, MI issued this special weather statement at Jul 7, 2017, 12:29 AM EDT for Chippewa County, Michigan. It was in force for 31 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 7, 2017, 12:29 AM EDT (04:29 UTC)
Expired
Jul 7, 2017, 1:00 AM EDT
In force
31 min
Issued by
NWS Gaylord, MI

County Chippewa County, MI

The radar

The NCL Michigan radar (KAPX), 196 km from the middle of the area, began a volume at 04:29 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

Alpena, MI (KAPX), launched 00:00Z, 4.5 hours before the alert went out and 264 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, Alpena, MI at 00:00Z on 2017-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 219 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, Alpena, MI at 00:00Z on 2017-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 180 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
219 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1347 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
180 m²/s²
0-3 km storm-relative helicity
213 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.6

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 Jul 7, 12:06 AM EDT, 23 minutes earlier.

Area forecast discussion, Jul 7, 12:06 AM EDT, 23 minutes before
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Hazardous weather outlook, Jul 6, 10:42 PM EDT, 1 hour 47 minutes before
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In the hours before

Local storm report, Jul 6, 7:43 PM EDT, 4 hours 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GAYLORD MI
743 PM EDT THU JUL 6 2017

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

0646 PM     TSTM WND DMG     LUPTON                  44.43N 84.02W
07/06/2017                   OGEMAW             MI   PUBLIC

            TREE UPROOTED. REPORT RELAYED VIA SOCIAL
            MEDIA. TIME ESTIMATED.

&&

MJG
Local storm report, Jul 6, 9:13 PM EDT, 3 hours 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GAYLORD MI
913 PM EDT THU JUL 6 2017

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

0855 PM     HAIL             4 NNW HOUGHTON LAKE     44.35N 84.80W
07/06/2017  M1.00 INCH       ROSCOMMON          MI   BROADCAST MEDIA

            REPORT OF QUARTER SIZED HAIL. RELAYED FROM 9
            & 10 NEWS BROADCAST METEOROLOGIST.

&&

MJG
Special weather statement, Jul 6, 9:41 PM EDT, 2 hours 48 minutes before
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Local storm report, Jul 6, 9:49 PM EDT, 2 hours 40 minutes before
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Special weather statement, Jul 6, 11:20 PM EDT, 1 hour 9 minutes before
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Special weather statement, Jul 7, 12:29 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 8:19 PM EDTSevere Thunderstorm WarningAPXMissaukee, Roscommon56 min
Jul 6, 9:15 PM EDTSevere Thunderstorm WarningAPXRoscommon45 min
Jul 6, 9:41 PM EDTSpecial Weather StatementAPXGladwin49 min
Jul 6, 11:03 PM EDTSpecial Marine WarningAPX57 min
Jul 6, 11:20 PM EDTSpecial Weather StatementAPXBenzie40 min
Jul 7, 2:51 PM EDTSpecial Weather StatementAPX39 min
Jul 7, 4:31 PM EDTSpecial Weather StatementAPXIosco44 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.