Area Forecast Discussion
Issued by NWS Marquette, MI

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FXUS63 KMQT 240453

Area Forecast Discussion
National Weather Service Marquette MI
1253 AM EDT Thu Aug 24 2017

.SHORT TERM...(This evening through Thursday)
Issued at 338 PM EDT WED AUG 23 2017

Two significant weather concerns in the short term...beach
hazards for Marquette and Alger Counties this evening, but waves
will diminish overnight and not result in poor conditions on
Thursday. The second is frost potential over the interior W tonight
as temps fall into the low to mid 30s. There is potential for some
cloud cover associated with an upstream shortwave to skirt the area,
so left Ontonagon and Gogebic Counties with an SPS and issues a
Frost Advisory for southern Houghton, Baraga, Iron, Marquette, and
Dickinson Counties.

.LONG TERM...(Thursday night through Wednesday)
Issued at 235 PM EDT WED AUG 23 2017

Nam shows a 500 mb trough over the lower Great Lakes 00z Fri with a
shortwave ridge the plains and troughing in the Pacific NW 00z Fri.
The ridge moves into the upper Great Lakes Fri night into Sat. Put
some frost into the forecast for Thu night as lows again dip to the
mid 30s interior west. No real big changes made to the going
forecast overall.

In the extended, troughing remains over the area through this
forecast period as the ECMWF and GFS show. Temperatures will remain
near normal for this forecast period as well.

.AVIATION...(For the 06Z TAFS through 06Z Thursday night)
Issued at 1252 AM EDT THU AUG 24 2017

VFR conditions will prevail over the next 24 hours with light winds
as high pressure anchors over the region.

.MARINE...(For the 4 PM Lake Superior forecast issuance)
Issued at 338 PM EDT WED AUG 23 2017

Winds will diminish to below 20kts tonight and will remain below
20kts through the forecast period.

Upper Michigan...
  Frost Advisory until 9 AM EDT /8 AM CDT/ this morning for MIZ004-

Lake Superior...
Lake Michigan...


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