Alert archive / Minnesota / Beach Hazards Statements in 2021

Beach Hazards Statement 14, NWS Duluth, MN

August 24, 2021Carlton County, Saint Louis County, Minnesota; Douglas County, Wisconsin

NWS Duluth, MN issued this beach hazards statement at Aug 24, 2021, 5:08 AM CDT for Carlton County, Saint Louis County, Minnesota; Douglas County, Wisconsin. It took effect at Aug 24, 2021, 2:00 PM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Aug 24, 2021, 5:08 AM CDT (10:08 UTC)
In effect from
Aug 24, 2021, 2:00 PM CDT
Expired
Aug 24, 2021, 9:15 PM CDT
In force
7 hr
Issued by
NWS Duluth, MN

Counties Carlton County, MN, Saint Louis County, MN, Douglas County, WI

The radar

The Duluth radar (KDLH), 11 km from the middle of the area, began a volume at 10:07 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

International Fa, MN (KINL), launched 00:00Z, 10.1 hours before the alert went out and 201 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, International Fa, MN at 00:00Z on 2021-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, International Fa, MN at 00:00Z on 2021-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.19395878Sfc1 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
858 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

243 
WHUS43 KDLH 241008
CFWDLH

Coastal Hazard Message
National Weather Service Duluth MN
508 AM CDT Tue Aug 24 2021

MNZ037-WIZ001-250300-
/O.NEW.KDLH.BH.S.0014.210824T1900Z-210825T0300Z/
Carlton/Southern St. Louis-Douglas-
508 AM CDT Tue Aug 24 2021

...BEACH HAZARDS STATEMENT IN EFFECT FROM 2 PM CDT THIS AFTERNOON
THROUGH THIS EVENING...

The National Weather Service in Duluth has issued a Beach Hazards
Statement, which is in effect from 2 PM CDT this afternoon
through this evening.

* LOCATIONS...Park Point and Wisconsin Point Beaches.

* TIMING...Winds and waves will increase this afternoon with the
  worst conditions expected mid to late this afternoon into the
  early evening.

* DANGEROUS SWIMMING CONDITIONS...Are expected along the Lake 
  Superior shoreline due to high wave action and strong rip 
  currents.

* HIGH WAVE ACTION...Can make swimming difficult on days such as 
  this. Incoming waves in rapid succession can tire a swimmer 
  quickly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Rip currents are powerful channels of water flowing quickly away
from shore...which occur most often at low spots in sandbars...
near shoreline structures such as peninsulas or breakwalls...and
near river mouths.

For additional safety information and precautions...please visit
www.weather.gov/Duluth

&&

$$

BJH
1 follow-up statement
818 
WHUS43 KDLH 250215
CFWDLH

Coastal Hazard Message
National Weather Service Duluth MN
915 PM CDT Tue Aug 24 2021

MNZ037-WIZ001-250315-
/O.CAN.KDLH.BH.S.0014.000000T0000Z-210825T0300Z/
Carlton/Southern St. Louis-Douglas-
915 PM CDT Tue Aug 24 2021

...BEACH HAZARDS STATEMENT IS CANCELLED...

Winds and waves have subsided to below hazardous criteria.

$$

The office that day

Everything else NWS Duluth, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 24, 1:40 PM CDTSmall Craft AdvisoryDLH8 hr

Nearby

Beach Hazards Statements in Minnesota, 2021Beach Hazards Statements in Wisconsin, 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.