Alert archive / Michigan / Beach Hazards Statements in 2018
Beach Hazards Statement 16, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this beach hazards statement at Sep 21, 2018, 3:47 AM EDT for 6 counties in Michigan. It was in force for 16 hr.
The area
The counties it named.
The facts
- Issued
- Sep 21, 2018, 3:47 AM EDT (07:47 UTC)
- Expired
- Sep 21, 2018, 8:00 PM EDT
- In force
- 16 hr
- Issued by
- NWS Grand Rapids, MI
Counties Allegan County, MI, Mason County, MI, Muskegon County, MI, Oceana County, MI, Ottawa County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 60 km from the middle of the area, began a volume at 07:49 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, 7.8 hours before the alert went out and 214 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.
- Mixed-layer CAPE
- 3 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 512 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 340 m²/s²
- 0-3 km storm-relative helicity
- 454 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted.
328 WHUS43 KGRR 210747 CFWGRR LAKESHORE HAZARD MESSAGE National Weather Service GRAND RAPIDS MI 347 AM EDT Fri Sep 21 2018 MIZ037-043-050-056-064-071-211600- /O.NEW.KGRR.BH.S.0016.180921T0747Z-180922T0000Z/ Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren- 347 AM EDT Fri Sep 21 2018 ...BEACH HAZARDS STATEMENT IN EFFECT THROUGH THIS EVENING... The National Weather Service in Grand Rapids has issued a Beach Hazards Statement...which is in effect through this evening. * HIGH WAVE ACTION... STRONG CURRENTS AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * STRONG STRUCTURAL CURRENTS EXPECTED. * STRONG LONGSHORE CURRENTS POSSIBLE. * RIP CURRENTS POSSIBLE. * LOCATION...BEACHES FROM St. Joseph to Manistee. * BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE... North Beach in South Haven... Holland State Park... Muskegon State Park... Mears State Park in Pentwater... Stearns Park in Ludington. * OVERVIEW/POTENTIAL IMPACTS...Southwest winds will become west to northwest this morning, and increase to 30 to 40 mph. These winds, and waves building to 7 to 10 ft by later today, will create very hazardous swimming conditions. In addition, water temperatures have dropped off, and could add another hazard to anyone swimming in the waters of Lake Michigan today. PRECAUTIONARY/PREPAREDNESS ACTIONS... High Wave Action makes swimming difficult and can tire even a strong swimmer quickly. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural Currents can sweep you out into deeper water along the pier structure. A longshore current is a lake current that moves parallel to shore. Longshore currents can be strong enough to Prevent swimmers from being able to keep their feet on the bottom... making it difficult to return to shore. Rip currents are powerful channels of water flowing quickly away from shore...which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. && $$ WEATHER.GOV/GRR
2 follow-up statements
170 WHUS43 KGRR 211417 CFWGRR LAKESHORE HAZARD MESSAGE National Weather Service GRAND RAPIDS MI 1017 AM EDT Fri Sep 21 2018 MIZ037-043-050-056-064-071-212230- /O.CON.KGRR.BH.S.0016.000000T0000Z-180922T0000Z/ Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren- 1017 AM EDT Fri Sep 21 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * HIGH WAVE ACTION... STRONG CURRENTS AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * STRONG STRUCTURAL CURRENTS EXPECTED. * STRONG LONGSHORE CURRENTS POSSIBLE. * RIP CURRENTS POSSIBLE. * LOCATION...BEACHES FROM St. Joseph to Manistee. * BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE... North Beach in South Haven... Holland State Park... Muskegon State Park... Mears State Park in Pentwater... Stearns Park in Ludington. * OVERVIEW/POTENTIAL IMPACTS...Southwest winds will become west to northwest this morning, and increase to 30 to 40 mph. These winds, and waves building to 7 to 10 ft by later today, will create very hazardous swimming conditions. In addition, water temperatures have dropped off, and could add another hazard to anyone swimming in the waters of Lake Michigan today. PRECAUTIONARY/PREPAREDNESS ACTIONS... High Wave Action makes swimming difficult and can tire even a strong swimmer quickly. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural Currents can sweep you out into deeper water along the pier structure. A longshore current is a lake current that moves parallel to shore. Longshore currents can be strong enough to Prevent swimmers from being able to keep their feet on the bottom... making it difficult to return to shore. Rip currents are powerful channels of water flowing quickly away from shore...which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. && $$ WEATHER.GOV/GRR
881 WHUS43 KGRR 211910 CFWGRR LAKESHORE HAZARD MESSAGE National Weather Service GRAND RAPIDS MI 310 PM EDT Fri Sep 21 2018 MIZ037-043-050-056-064-071-220000- /O.CON.KGRR.BH.S.0016.000000T0000Z-180922T0000Z/ Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren- 310 PM EDT Fri Sep 21 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * HIGH WAVE ACTION... STRONG CURRENTS AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * STRONG STRUCTURAL CURRENTS EXPECTED. * STRONG LONGSHORE CURRENTS POSSIBLE. * RIP CURRENTS POSSIBLE. * LOCATION...BEACHES FROM St. Joseph to Manistee. * BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE... North Beach in South Haven... Holland State Park... Muskegon State Park... Mears State Park in Pentwater... Stearns Park in Ludington. * OVERVIEW/POTENTIAL IMPACTS...Northwest winds 20 to 35 mph will decrease this evneing. Waves in the 6 to 10 foot range will be hazardous for swimming. In addition, water temperatures have dropped off, and could add another hazard to anyone swimming in the waters of Lake Michigan today. PRECAUTIONARY/PREPAREDNESS ACTIONS... High Wave Action makes swimming difficult and can tire even a strong swimmer quickly. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural Currents can sweep you out into deeper water along the pier structure. A longshore current is a lake current that moves parallel to shore. Longshore currents can be strong enough to Prevent swimmers from being able to keep their feet on the bottom... making it difficult to return to shore. Rip currents are powerful channels of water flowing quickly away from shore...which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. && $$ WEATHER.GOV/GRR
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 3:33 AM EDT | Wind Advisory | GRR | Clare, Gratiot, Isabella, Lake, Mason, Mecosta and 4 more | 14 hr |
| Sep 21, 6:06 AM EDT | Special Weather Statement | GRR | Barry, Ionia, Kalamazoo, Kent | 54 min |
| Sep 21, 7:41 AM EDT | Special Weather Statement | GRR | Barry, Calhoun, Clinton, Eaton, Gratiot, Ingham and 3 more | 94 min |
| Sep 21, 12:23 PM EDT | Special Weather Statement | GRR | Calhoun, Eaton, Ingham, Jackson | 82 min |
Nearby
Beach Hazards Statements in Michigan, 2018Every beach hazards statement in 2018
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.