Alert archive / Michigan / Beach Hazards Statements in 2021

Beach Hazards Statement 29, NWS Marquette, MI

September 20, 2021Schoolcraft County, Michigan

NWS Marquette, MI issued this beach hazards statement at Sep 20, 2021, 3:56 AM EDT for Schoolcraft County, Michigan. It took effect at Sep 20, 2021, 8:00 AM EDT. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Sep 20, 2021, 3:56 AM EDT (07:56 UTC)
In effect from
Sep 20, 2021, 8:00 AM EDT
Expired
Sep 20, 2021, 9:00 PM EDT
In force
13 hr
Issued by
NWS Marquette, MI

County Schoolcraft County, MI

The radar

The Marquette radar (KMQT), 119 km from the middle of the area, began a volume at 08:00 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 7.9 hours before the alert went out and 230 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, Green Bay/Straub, WI at 00:00Z on 2021-09-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 162 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 00:00Z on 2021-09-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.1939Sfc1 km3 km6 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
162 J/kg
Mixed-layer CIN
-133 J/kg
Mixed-layer LCL
1094 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

416 
WHUS43 KMQT 200756
CFWMQT

Coastal Hazard Message
National Weather Service Marquette MI
356 AM EDT Mon Sep 20 2021

MIZ014-210100-
/O.NEW.KMQT.BH.S.0029.210920T1200Z-210921T0100Z/
Southern Schoolcraft-
356 AM EDT Mon Sep 20 2021

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

* WHAT...Dangerous swimming conditions are expected due to high 
  wave action and strong rip currents.

* WHERE...Southern Schoolcraft County.

* WHEN...From 8 AM EDT this morning through this evening.

* IMPACTS...High wave action and dangerous currents will lead to 
  life threatening swimming conditions. Waves in rapid 
  succession can tire swimmers quickly.

* ADDITIONAL DETAILS...Current related fatalities and rescues in 
  the past have occurred due to similar wave conditions at 
  locations listed below:

For Southern Schoolcraft County: Near Lakeview Park and Seul
Choix Point.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

07

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 20, 3:51 AM EDTSmall Craft AdvisoryMQT43 hr
Sep 20, 10:32 AM EDTGale WarningMQT26 hr
Sep 20, 7:04 PM EDTSpecial Marine WarningMQT56 min
Sep 20, 7:37 PM EDTSpecial Weather StatementMQTGogebic38 min
Sep 20, 7:56 PM EDTSpecial Marine WarningMQT34 min

Nearby

Beach Hazards Statements in Michigan, 2021Every beach hazards statement in 2021

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.