Alert archive / Michigan / Beach Hazards Statements in 2023

Beach Hazards Statement 9, NWS Northern Indiana

August 7, 2023Berrien County, Michigan; LaPorte County, Indiana

NWS Northern Indiana issued this beach hazards statement at Aug 7, 2023, 4:11 AM EDT for Berrien County, Michigan; LaPorte County, Indiana. It took effect at Aug 7, 2023, 2:00 PM EDT. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Aug 7, 2023, 4:11 AM EDT (08:11 UTC)
In effect from
Aug 7, 2023, 2:00 PM EDT
Expired
Aug 8, 2023, 2:42 AM EDT
In force
13 hr
Issued by
NWS Northern Indiana

Counties LaPorte County, IN, Berrien County, MI

The radar

The Northern Indiana radar (KIWX), 85 km from the middle of the area, began a volume at 08:14 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

Lincoln, IL (KILX), launched 00:00Z, 8.2 hours before the alert went out and 244 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, Lincoln, IL at 00:00Z on 2023-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 275 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2023-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 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
275 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
871 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.0

Open this sounding in Storm Lab

The text

As transmitted.

953 
WHUS43 KIWX 070811
CFWIWX

Coastal Hazard Message
National Weather Service Northern Indiana
411 AM EDT Mon Aug 7 2023

INZ103-MIZ177-277-071615-
/O.NEW.KIWX.BH.S.0009.230807T1800Z-230808T0900Z/
Northern La Porte-Northern Berrien-Southern Berrien-
411 AM EDT Mon Aug 7 2023 /311 AM CDT Mon Aug 7 2023/

...BEACH HAZARDS STATEMENT IN EFFECT FROM 2 PM EDT /1 PM CDT/
THIS AFTERNOON THROUGH LATE TONIGHT...

* WHAT...High wave action, strong currents, and dangerous swimming
  conditions expected. Piers will be heavily swamped by waves.
  Waves will build to 3 to 6 feet this afternoon into early this
  evening. Waves will subside to 1 to 3 feet late tonight into
  early Tuesday morning.

* WHERE...In Indiana, Northern La Porte county. In Michigan, 
  Northern Berrien and Southern Berrien counties.

* WHEN...From 2 PM EDT /1 PM CDT/ this afternoon through late 
  tonight.

* IMPACTS...Strong currents can pull swimmers into deeper water 
  and high waves can sweep people off piers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.
Do not venture out on piers.

&&

$$
4 follow-up statements
389 
WHUS43 KIWX 071443
CFWIWX

Coastal Hazard Message
National Weather Service Northern Indiana
1043 AM EDT Mon Aug 7 2023

INZ103-MIZ177-277-072245-
/O.CON.KIWX.BH.S.0009.230807T1800Z-230808T0900Z/
Northern La Porte-Northern Berrien-Southern Berrien-
1043 AM EDT Mon Aug 7 2023 /943 AM CDT Mon Aug 7 2023/

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 2 PM EDT /1 PM
CDT/ THIS AFTERNOON THROUGH LATE TONIGHT...

* WHAT...High wave action, strong currents, and dangerous 
  swimming conditions expected. Piers will be heavily swamped by 
  waves. Waves will build to 3 to 5 feet this afternoon into early this
  evening. Waves will subside to 1 to 3 feet late tonight into
  early Tuesday morning.

* WHERE...In Indiana, Northern La Porte county. In Michigan, 
  Northern Berrien and Southern Berrien counties.

* WHEN...From 2 PM EDT /1 PM CDT/ this afternoon through late 
  tonight.

* IMPACTS...Strong currents can pull swimmers into deeper water 
  and high waves can sweep people off piers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.
Do not venture out on piers.

&&

$$
064 
WHUS43 KIWX 071941
CFWIWX

Coastal Hazard Message
National Weather Service Northern Indiana
341 PM EDT Mon Aug 7 2023

INZ103-MIZ177-277-080345-
/O.CON.KIWX.BH.S.0009.000000T0000Z-230808T0900Z/
Northern La Porte-Northern Berrien-Southern Berrien-
341 PM EDT Mon Aug 7 2023 /241 PM CDT Mon Aug 7 2023/

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE
TONIGHT...

* WHAT...High wave action, strong currents, and dangerous 
  swimming conditions expected. Piers will be heavily swamped by 
  waves. Waves 2 to 4 feet.

* WHERE...In Indiana, Northern La Porte county. In Michigan, 
  Northern Berrien and Southern Berrien counties.

* WHEN...Through late tonight.

* IMPACTS...Strong currents can pull swimmers into deeper water 
  and high waves can sweep people off piers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.
Do not venture out on piers.

&&

$$
446 
WHUS43 KIWX 080204
CFWIWX

Coastal Hazard Message
National Weather Service Northern Indiana
1004 PM EDT Mon Aug 7 2023

INZ103-MIZ177-277-080900-
/O.CON.KIWX.BH.S.0009.000000T0000Z-230808T0900Z/
Northern La Porte-Northern Berrien-Southern Berrien-
1004 PM EDT Mon Aug 7 2023 /904 PM CDT Mon Aug 7 2023/

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 5 AM EDT /4 AM
CDT/ TUESDAY...

* WHAT...High wave action, strong currents, and dangerous 
  swimming conditions expected. Piers will be heavily swamped by 
  waves. Waves 2 to 4 feet.

* WHERE...In Indiana, Northern La Porte county. In Michigan, 
  Northern Berrien and Southern Berrien counties.

* WHEN...Through late tonight.

* IMPACTS...Strong currents can pull swimmers into deeper water 
  and high waves can sweep people off piers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.
Do not venture out on piers.

&&

$$
158 
WHUS43 KIWX 080642
CFWIWX

Coastal Hazard Message
National Weather Service Northern Indiana
242 AM EDT Tue Aug 8 2023

INZ103-MIZ177-277-080745-
/O.CAN.KIWX.BH.S.0009.000000T0000Z-230808T0900Z/
Northern La Porte-Northern Berrien-Southern Berrien-
242 AM EDT Tue Aug 8 2023 /142 AM CDT Tue Aug 8 2023/

...BEACH HAZARDS STATEMENT IS CANCELLED...

Wave heights have diminished. The Beach Hazards Statement has been
cancelled.

$$

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 7, 4:10 AM EDTSmall Craft AdvisoryIWX20 hr

Nearby

Beach Hazards Statements in Michigan, 2023Beach Hazards Statements in Indiana, 2023Every beach hazards statement in 2023

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.