Alert archive / Michigan / Beach Hazards Statements in 2016

Beach Hazards Statement 8, NWS Detroit, MI

July 28, 20164 counties in Michigan

NWS Detroit, MI issued this beach hazards statement at Jul 28, 2016, 9:30 PM EDT for 4 counties in Michigan. It took effect at Jul 29, 2016, 8:00 AM EDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Jul 28, 2016, 9:30 PM EDT (01:30 UTC)
In effect from
Jul 29, 2016, 8:00 AM EDT
Expired
Jul 29, 2016, 9:43 PM EDT
In force
14 hr
Issued by
NWS Detroit, MI

Counties Bay County, MI, Huron County, MI, Saint Clair County, MI, Sanilac County, MI

The radar

The Detroit radar (KDTX), 96 km from the middle of the area, began a volume at 01:29 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

Detroit, MI (KDTX), launched 00:00Z, 1.5 hours before the alert went out and 93 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, Detroit, MI at 00:00Z on 2016-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 248 joules per kilogram.LCLLFCEL10008507005003002001001 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, Detroit, MI at 00:00Z on 2016-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
248 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
1417 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

799 
WHUS43 KDTX 290130
CFWDTX

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
930 PM EDT THU JUL 28 2016


MIZ048-049-055-063-300200-
/O.CAN.KDTX.BH.S.0007.000000T0000Z-160729T0400Z/
/O.NEW.KDTX.BH.S.0008.160729T1200Z-160730T0200Z/
BAY-HURON-SANILAC-ST. CLAIR-
930 PM EDT THU JUL 28 2016

...BEACH HAZARDS STATEMENT IN EFFECT FROM 8 AM EDT FRIDAY THROUGH
FRIDAY EVENING...
...BEACH HAZARDS STATEMENT IS CANCELLED FOR THIS EVENING...

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

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* STRONG STRUCTURAL CURRENTS...EXPECTED.

* LOCATION...BEACHES FROM LINWOOD BEACH TO PORT HURON 
  INCLUDING... 

LINWOOD BEACH...CASEVILLE...SAND POINT... PORT CRESCENT STATE
PARK...PORT AUSTIN...HARBOR BEACH... PORT SANILAC...LEXINGTON...
BIRCH BEACH...LAKEPORT... FORT GRATIOT...PORT HURON...

* OVERVIEW/POTENTIAL IMPACTS...NORTHEAST WINDS WILL GUST TO 20
  KNOTS AGAIN ON FRIDAY. THIS INCREASED ONSHORE FLOW WILL CREATE
  HIGH WAVE CONDITIONS THAT WILL PRODUCE DANGEROUS SWIMMING
  CONDITIONS ON AREA BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

CHILDREN SHOULD NOT ENTER THE WATER UNSUPERVISED AND WITHOUT A
CERTIFIED FLOTATION DEVICE. CAUTION SHOULD BE USED WHEN IN OR
NEAR THE WATER. PAY ATTENTION TO FLAGS AND SIGNS POSTED NEAR
BEACH ACCESS POINTS AND LIFEGUARD STATIONS. 

&&

$$
3 follow-up statements
725 
WHUS43 KDTX 290817
CFWDTX

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
417 AM EDT FRI JUL 29 2016

MIZ048-049-055-063-292045-
/O.CON.KDTX.BH.S.0008.160729T1200Z-160730T0200Z/
BAY-HURON-SANILAC-ST. CLAIR-
417 AM EDT FRI JUL 29 2016

...BEACH HAZARDS STATEMENT REMAINS 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 LINWOOD BEACH TO PORT HURON 
  INCLUDING... 

LINWOOD BEACH...CASEVILLE...SAND POINT... PORT CRESCENT STATE
PARK...PORT AUSTIN...HARBOR BEACH... PORT SANILAC...LEXINGTON...
BIRCH BEACH...LAKEPORT... FORT GRATIOT...PORT HURON...

* OVERVIEW/POTENTIAL IMPACTS...NORTHEAST WINDS WILL GUST TO 25
  KNOTS TODAY. THIS INCREASED ONSHORE FLOW WILL CREATE HIGH WAVE
  CONDITIONS THAT WILL PRODUCE DANGEROUS SWIMMING CONDITIONS ON
  AREA BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

CHILDREN SHOULD NOT ENTER THE WATER UNSUPERVISED AND WITHOUT A
CERTIFIED FLOTATION DEVICE. CAUTION SHOULD BE USED WHEN IN OR
NEAR THE WATER. PAY ATTENTION TO FLAGS AND SIGNS POSTED NEAR
BEACH ACCESS POINTS AND LIFEGUARD STATIONS.

&&

$$
865 
WHUS43 KDTX 291959
CFWDTX

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
359 PM EDT FRI JUL 29 2016


MIZ048-049-055-063-300200-
/O.CON.KDTX.BH.S.0008.000000T0000Z-160730T0200Z/
BAY-HURON-SANILAC-ST. CLAIR-
359 PM EDT FRI JUL 29 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* STRONG STRUCTURAL CURRENTS...EXPECTED.

* LOCATION...BEACHES FROM LINWOOD BEACH TO PORT HURON 
  INCLUDING... 

LINWOOD BEACH...CASEVILLE...SAND POINT... PORT CRESCENT STATE
PARK...PORT AUSTIN...HARBOR BEACH... PORT SANILAC...LEXINGTON...
BIRCH BEACH...LAKEPORT... FORT GRATIOT...PORT HURON...

* OVERVIEW/POTENTIAL IMPACTS...NORTHEAST WINDS WILL GUST TO 25 
  KNOTS TODAY. THIS INCREASED ONSHORE FLOW WILL CREATE HIGH WAVE 
  CONDITIONS THAT WILL PRODUCE DANGEROUS SWIMMING CONDITIONS ON 
  AREA BEACHES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

CHILDREN SHOULD NOT ENTER THE WATER UNSUPERVISED AND WITHOUT A
CERTIFIED FLOTATION DEVICE. CAUTION SHOULD BE USED WHEN IN OR
NEAR THE WATER. PAY ATTENTION TO FLAGS AND SIGNS POSTED NEAR
BEACH ACCESS POINTS AND LIFEGUARD STATIONS.

&&

$$
603 
WHUS43 KDTX 300143
CFWDTX

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
943 PM EDT FRI JUL 29 2016

MIZ048-049-055-063-300245-
/O.CAN.KDTX.BH.S.0008.000000T0000Z-160730T0200Z/
BAY-HURON-SANILAC-ST. CLAIR-
943 PM EDT FRI JUL 29 2016

...BEACH HAZARDS STATEMENT IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS CANCELLED THE
BEACH HAZARDS STATEMENT. 

NORTHEAST WINDS WILL DIMINISH TO SOME EXTENT OVERNIGHT AND ALLOW
WAVES TO GRADUALLY SUBSIDE. STILL, ONSHORE FLOW WILL CONTINUE TO
PRODUCE A MODERATE SWIM HAZARD AT TIMES INTO SATURDAY ALONG THE
THUMB SHORELINE.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 9:05 PM EDTSpecial Weather StatementDTXLenawee, Monroe55 min
Jul 29, 2:38 PM EDTSpecial Weather StatementDTXWayne52 min
Jul 29, 2:49 PM EDTAreal Flood AdvisoryDTXWayne3 hr
Jul 29, 3:28 PM EDTSpecial Weather StatementDTXWayne47 min
Jul 29, 4:15 PM EDTSpecial Weather StatementDTXMacomb60 min

Nearby

Beach Hazards Statements in Michigan, 2016Every beach hazards statement in 2016

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.