Alert archive / Michigan / Winter Weather Advisories in 2017
Winter Weather Advisory 39, NWS Gaylord, MI
NWS Gaylord, MI issued this winter weather advisory at Dec 29, 2017, 9:24 PM EST for Benzie County, Michigan. It took effect at Dec 29, 2017, 11:00 PM EST. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Dec 29, 2017, 9:24 PM EST (02:24 UTC)
- In effect from
- Dec 29, 2017, 11:00 PM EST
- Expired
- Dec 30, 2017, 1:27 PM EST
- In force
- 14 hr
- Issued by
- NWS Gaylord, MI
County Benzie County, MI
The radar
The NCL Michigan radar (KAPX), 117 km from the middle of the area, began a volume at 02:24 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
Detroit, MI (KDTX), launched 00:00Z, 2.4 hours before the alert went out and 303 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 689 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 216 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather advisory 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 winter weather advisory went out at Dec 29, 8:42 PM EST, 42 minutes earlier.
Area forecast discussion, Dec 29, 8:42 PM EST, 42 minutes before
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</html>Hazardous weather outlook, Dec 29, 3:31 PM EST, 5 hours 53 minutes before
Hazardous Weather Outlook National Weather Service Gaylord MI 331 PM EST Fri Dec 29 2017 LHZ345>349-LMZ323-341-342-344>346-LSZ321-322-MIZ008-015>036-041- 042-301100- Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island-St Ignace to False Detour Channel- 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island- Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary-Sturgeon Pt to Alabaster MI- Grand Traverse Bay south of a line Grand Traverse Light to Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge- Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI- Point Betsie to Sleeping Bear Point MI- Manistee to Point Betsie MI- Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI- St. Marys River Point Iroquois to E. Potagannissing Bay-Chippewa- Mackinac-Emmet-Cheboygan-Presque Isle-Charlevoix-Leelanau-Antrim- Otsego-Montmorency-Alpena-Benzie-Grand Traverse-Kalkaska-Crawford- Oscoda-Alcona-Manistee-Wexford-Missaukee-Roscommon-Ogemaw-Iosco- Gladwin-Arenac- 331 PM EST Fri Dec 29 2017 This hazardous weather outlook is for northern Lower Michigan... eastern Upper Michigan...and adjacent nearshore waters of Lake Michigan...Lake Huron and Lake Superior. .DAY ONE...Tonight. Periods of moderate to heavy lake effect snow showers and poor visibility will impact Mackinac county into this evening and portions of far Northern and Northwest Lower Michigan tonight into Saturday. See ongoing warnings and advisories for further details. Persistent cold weather could cause ice jam flooding on area rivers over the next several days. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Periods of accumulating lake effect snow and significantly reduced visibility are expected in portions of northern Michigan over the next several days. See ongoing advisories for further details. With the persistent cold weather, ice jams are possible on area rivers. Well below zero wind chills will return this weekend and into New Years Day. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report snowfall amounts to the National Weather Service. Reports may be made one of three ways: Online: weather.gov/gaylord Facebook: facebook.com/nwsgaylord Twitter: twitter.com/nwsgaylord
The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 30, 4:08 AM EST | Winter Weather Advisory | APX | Antrim, Manistee | 54 hr |
| Dec 30, 3:53 PM EST | Wind Chill Advisory | APX | 20 hr |
Nearby
Winter Weather Advisories in Michigan, 2017Every winter weather advisory 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.