Alert archive / Michigan / Beach Hazards Statements in 2020
Beach Hazards Statement 8, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this beach hazards statement at Jul 12, 2020, 9:32 PM EDT for 4 counties in Michigan. It took effect at Jul 13, 2020, 12:00 AM EDT. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 12, 2020, 9:32 PM EDT (01:32 UTC)
- In effect from
- Jul 13, 2020, 12:00 AM EDT
- Expired
- Jul 13, 2020, 2:49 AM EDT
- In force
- 3 hr
- Issued by
- NWS Grand Rapids, MI
Counties Allegan County, MI, Muskegon County, MI, Ottawa County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 52 km from the middle of the area, began a volume at 01:35 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 222 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
- 6 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1466 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
814 WHUS43 KGRR 130132 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 932 PM EDT Sun Jul 12 2020 MIZ050-056-064-071-130800- /O.CAN.KGRR.BH.S.0007.000000T0000Z-200713T0800Z/ /O.NEW.KGRR.BH.S.0008.200713T0400Z-200713T0800Z/ Muskegon-Ottawa-Allegan-Van Buren- 932 PM EDT Sun Jul 12 2020 ...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 4 AM EDT MONDAY... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Muskegon, Ottawa, Allegan and Van Buren counties. * WHEN...Until 4 AM EDT Monday. * 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. && $$ MIZ037-043-130245- /O.CAN.KGRR.BH.S.0007.000000T0000Z-200713T0400Z/ Mason-Oceana- 932 PM EDT Sun Jul 12 2020 ...BEACH HAZARDS STATEMENT IS CANCELLED... Waves have diminished and the statement is canceled. $$
1 follow-up statement
171 WHUS43 KGRR 130649 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 249 AM EDT Mon Jul 13 2020 MIZ050-056-064-071-130800- /O.CAN.KGRR.BH.S.0008.000000T0000Z-200713T0800Z/ Muskegon-Ottawa-Allegan-Van Buren- 249 AM EDT Mon Jul 13 2020 ...BEACH HAZARDS STATEMENT IS CANCELLED... The waves have fallen under 4 feet so the Beach Hazards Statement is cancelled. $$
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 9:34 PM EDT | Small Craft Advisory | GRR | 5 hr |
Nearby
Beach Hazards Statements in Michigan, 2020Every beach hazards statement in 2020
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.