Alert archive / Michigan / Beach Hazards Statements in 2017

Beach Hazards Statement 6, NWS Detroit, MI

August 5, 2017Huron County, Michigan

NWS Detroit, MI issued this beach hazards statement at Aug 5, 2017, 3:46 AM EDT for Huron County, Michigan. It took effect at Aug 5, 2017, 8:00 AM EDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Aug 5, 2017, 3:46 AM EDT (07:46 UTC)
In effect from
Aug 5, 2017, 8:00 AM EDT
Expired
Aug 5, 2017, 10:00 PM EDT
In force
14 hr
Issued by
NWS Detroit, MI

County Huron County, MI

The radar

The Detroit radar (KDTX), 144 km from the middle of the area, began a volume at 07:45 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, 7.8 hours before the alert went out and 134 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 2017-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Alpena, MI at 00:00Z on 2017-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
463 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
-51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

001 
WHUS43 KDTX 050746
CFWDTX

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
346 AM EDT SAT AUG 5 2017

...DANGEROUS SWIMMING CONDITIONS AGAIN TODAY...


MIZ049-060200-
/O.NEW.KDTX.BH.S.0006.170805T1200Z-170806T0200Z/
HURON-
346 AM EDT SAT AUG 5 2017

...BEACH HAZARDS STATEMENT IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
BEACH HAZARDS STATEMENT...WHICH IS IN EFFECT FROM 8 AM EDT THIS
MORNING THROUGH THIS EVENING. 

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* STRONG STRUCTURAL CURRENTS...EXPECTED.

* LOCATION...BEACHES FROM CASEVILLE TO HARBOR BEACH INCLUDING...

  CASEVILLE...SAND POINT...PORT CRESCENT STATE PARK...
  PORT AUSTIN...HARBOR BEACH...

* OVERVIEW/POTENTIAL IMPACTS...NORTHWEST WINDS 20 TO 30 MPH WITH
  GUSTS TO 35 MPH WILL LEAD TO HIGH WAVES THROUGH THE AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION ALONE CAN MAKE SWIMMING DIFFICULT ON DAYS SUCH 
AS THIS. INCOMING WAVES IN RAPID SUCCESSION CAN TIRE A SWIMMER 
QUICKLY.

TO LEARN MORE ABOUT DANGEROUS WAVES AND CURRENTS PLEASE VISIT 
DANGEROUSCURRENTS.ORG (ALL LOWER CASE)

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 4:12 PM EDTSpecial Weather StatementDTXLenawee48 min

Nearby

Beach Hazards Statements in Michigan, 2017Every beach hazards 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.