Alert archive / Michigan / Beach Hazards Statements in 2021
Beach Hazards Statement 17, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this beach hazards statement at Aug 10, 2021, 3:06 PM EDT for 5 counties in Michigan. It took effect at Aug 11, 2021, 8:00 AM EDT. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Aug 10, 2021, 3:06 PM EDT (19:06 UTC)
- In effect from
- Aug 11, 2021, 8:00 AM EDT
- Expired
- Aug 12, 2021, 3:00 AM EDT
- In force
- 19 hr
- Issued by
- NWS Grand Rapids, MI
Counties Allegan County, MI, Mason County, MI, Muskegon County, MI, Oceana County, MI, Ottawa County, MI
The radar
The Grand Rapids radar (KGRR), 69 km from the middle of the area, began a volume at 19:09 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 12:00Z, 7.1 hours before the alert went out and 202 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
- 32 J/kg
- Mixed-layer CIN
- -550 J/kg
- Mixed-layer LCL
- 828 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
131 WHUS43 KGRR 101906 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 306 PM EDT Tue Aug 10 2021 MIZ037-043-050-056-110315- /O.NEW.KGRR.BH.S.0017.210811T1200Z-210812T0700Z/ Mason-Oceana-Muskegon-Ottawa- 306 PM EDT Tue Aug 10 2021 ...BEACH HAZARDS STATEMENT IN EFFECT FROM WEDNESDAY MORNING THROUGH LATE WEDNESDAY NIGHT... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Muskegon and Ottawa counties. * WHEN...From Wednesday morning through late Wednesday night. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Waves of 3 to 6 feet are predicted. South sides of south piers will be most dangerous, such as at Grand Haven State Park and Pere Marquette Park in Muskegon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$
4 follow-up statements
420 WHUS43 KGRR 110751 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 351 AM EDT Wed Aug 11 2021 MIZ037-043-050-056-111600- /O.CON.KGRR.BH.S.0017.210811T1200Z-210812T0700Z/ Mason-Oceana-Muskegon-Ottawa- 351 AM EDT Wed Aug 11 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH LATE TONIGHT... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Muskegon and Ottawa counties. * WHEN...From 8 AM EDT this morning through late tonight. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$
799 WHUS43 KGRR 111550 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 1150 AM EDT Wed Aug 11 2021 MIZ037-043-050-056-120000- /O.CON.KGRR.BH.S.0017.000000T0000Z-210812T0700Z/ Mason-Oceana-Muskegon-Ottawa- 1150 AM EDT Wed Aug 11 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE TONIGHT... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Muskegon and Ottawa 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 and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$
000 WHUS43 KGRR 111722 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 122 PM EDT Wed Aug 11 2021 MIZ064-120130- /O.EXA.KGRR.BH.S.0017.000000T0000Z-210812T0700Z/ Allegan- 122 PM EDT Wed Aug 11 2021 ...BEACH HAZARDS STATEMENT IN EFFECT THROUGH LATE TONIGHT... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Allegan county. * WHEN...Through late tonight. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$ MIZ037-043-050-056-120130- /O.CON.KGRR.BH.S.0017.000000T0000Z-210812T0700Z/ Mason-Oceana-Muskegon-Ottawa- 122 PM EDT Wed Aug 11 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE TONIGHT... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Muskegon and Ottawa 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 and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$
064 WHUS43 KGRR 111915 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 315 PM EDT Wed Aug 11 2021 MIZ037-043-050-056-064-120315- /O.CON.KGRR.BH.S.0017.000000T0000Z-210812T0700Z/ Mason-Oceana-Muskegon-Ottawa-Allegan- 315 PM EDT Wed Aug 11 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 3 AM EDT THURSDAY... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Muskegon, Allegan and Ottawa counties. * WHEN...Until 3 AM EDT Thursday. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Waves of 3 to 6 feet are predicted. South sides of south piers will be most dangerous, such as at Grand Haven State Park and Pere Marquette Park in Muskegon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 8:15 PM EDT | Special Weather Statement | GRR | Mecosta | 30 min |
| Aug 9, 8:33 PM EDT | Areal Flood Advisory | GRR | Newaygo | 7 hr |
| Aug 9, 9:28 PM EDT | Special Marine Warning | GRR | 62 min | |
| Aug 9, 11:41 PM EDT | Special Weather Statement | GRR | Allegan, Barry, Calhoun, Clinton, Eaton, Ingham and 4 more | 3 hr |
| Aug 10, 3:08 PM EDT | Small Craft Advisory | GRR | 36 hr |
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.