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Michigan, Mason

Beach Hazard Statement

Statement as of 9:57 PM EDT on August 23, 2016

Expires 2:00 AM EDT on August 25, 2016


... Beach hazards statement remains in effect through late
Wednesday night...

* high wave action... strong currents and dangerous swimming
conditions expected.

* Strong structural currents expected.

* Strong longshore currents expected.

* Rip currents possible.

* Location... beaches from South Haven to Manistee.

Beaches on the south side of piers will be particularly
dangerous. This includes Grand Haven State Park and Pere
Marquette Park in Muskegon.

* Overview/potential impacts... south winds of to 15 to 25 knots
will continue into Wednesday night. This will cause waves of 3
to 6 feet into Wednesday night.

Precautionary/preparedness actions...

High wave action makes swimming difficult and can tire even a
strong swimmer quickly.

Structural currents form along piers where longshore currents and
wave action flow into the structure. Structural currents can
sweep you out into deeper water along the pier structure.

A longshore current is a lake current that moves parallel to
shore. Longshore currents can be strong enough to prevent
swimmers from being able to keep their feet on the bottom...
making it difficult to return to shore.

Rip currents are powerful channels of water flowing quickly away
from shore... which occur most often at low spots or breaks in
sandbars. Rip currents can sweep you into deeper water.




Weather.Gov/GRR


Public Information Statement

Statement as of 9:45 PM EDT on August 23, 2016


... NWS damage survey for 08/20/16 Allegan and Ottawa County
tornado event - update...

.Update... Additional damage surveys have determined that the EF-1
tornado damage from near Fennville in Allegan County to near
Jamestown in Ottawa County was caused by two separate tornadoes
rather than one. A gap in the damage path was noted west of Burnips.
This brings the total number of tornadoes in southwest lower
Michigan on Saturday August 20th to six.

.Overview... After the first tornado of the day (ef-1) tracked
from Bangor to north of Grand Junction (see separate write-up),
the second tornado of the day began 6 miles southeast of Fennville
and tracked to 4 miles northeast of Hamilton and was rated EF-1.

The day's third tornado, also rated EF-1, began 2 miles northwest
of Burnips in extreme north-central Allegan County and tracked to
2 miles southeast of Jamestown in extreme southeast Ottawa County.

See separate write-ups for tornadoes four, five and six of the day
which impacted parts of Kent, Ionia and Montcalm counties.

.Fennville to Hamilton tornado...

Rating: EF-1
estimated peak wind: 90-100 mph
path length /statute/: 10 miles
path width /maximum/: 50-100 yards
fatalities: 0
injuries: 0

Start date: Aug 20 2016
start time: 1:42 PM EDT
start location: 6 miles southeast of Fennville, mi
start lat/lon: 42.533/-86.023

End date: Aug 20 2016
end time: 2:10 PM EDT
end location: 4 miles northeast of Hamilton, mi
end lat/lon: 42.702/-85.922

.Jamestown tornado...

Rating: EF-1
estimated peak wind: 90-100 mph
path length /statute/: 4 miles
path width /maximum/: 50-100 yards
fatalities: 0
injuries: 0

Start date: Aug 20 2016
start time: 2:18 PM EDT
start location: 2 miles northwest of Burnips
start lat/lon: 42.763/-85.861

End date: Aug 20 2016
end time: 2:26 PM EDT
end location: 2 miles southeast of Jamestown
end_lat/lon: 42.804/-85.803

Ef scale: the Enhanced Fujita scale classifies tornadoes into the
following categories.

EF0... weak... ... 65 to 85 mph
EF1... weak... ... 86 to 110 mph
EF2... strong... .111 to 135 mph
EF3... strong... .136 to 165 mph
EF4... violent... 166 to 200 mph
EF5... violent... >200 mph

Note:
the information in this statement is preliminary and subject to
change pending final review of the event and publication in
NWS storm data.


Weather Severe Map
Alaska - Areal Flood Advisory , Wind Advisory , Record Report
Arizona - Flash Flood Warning
Arkansas - Flood Warning , Heat Advisory , Record Report
California - Fire Weather Warning , Air Quality Alert
Colorado - Areal Flood Warning , Flash Flood Warning , Flash Flood Watch , Public Information Statement
Florida - Record Report
Georgia - Public Information Statement
Guam - High Surf Advisory
Hawaii - Areal Flood Advisory, Flash Flood Watch , Areal Flood Advisory , Record Report
Idaho - Air Quality Alert
Illinois - Flood Warning
Indiana - Flood Warning , Flood Advisory , Hydrologic Statement , Public Information Statement
Iowa - Severe Thunderstorm Warning , Flash Flood Warning , Areal Flood Advisory , Record Report
Kansas - Severe Thunderstorm Warning , Areal Flood Advisory
Kentucky - Public Information Statement
Louisiana - Flood Warning , Areal Flood Advisory , Heat Advisory , Record Report
Michigan - Flood Warning , Beach Hazard Statement , Public Information Statement
Minnesota - Flood Warning , Record Report , Public Information Statement
Mississippi - Heat Advisory , Record Report
Montana - Lake Wind Advisory , Air Quality Alert
Nebraska - Severe Thunderstorm Warning , Flash Flood Warning , Special Statement , Record Report
Nevada - Areal Flood Warning
New Mexico - Areal Flood Advisory
North Dakota - Public Information Statement
Ohio - Public Information Statement
Oklahoma - Areal Flood Advisory , Record Report
Oregon - Record Report
Puerto Rico - Flash Flood Watch
South Carolina - Public Information Statement
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Texas - Flood Warning , Flash Flood Warning , Heat Advisory , Special Statement , Record Report
Utah - Flash Flood Warning , Flash Flood Watch , Fire Weather Warning , Public Information Statement
Virgin Islands - Flash Flood Watch
Washington - Fire Weather Watch , Record Report
Wisconsin - Flood Warning , Beach Hazard Statement
Wyoming - Fire Weather Warning , Special Statement

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