Alert archive / Michigan / Beach Hazards Statements in 2021
Beach Hazards Statement 24, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this beach hazards statement at Sep 12, 2021, 6:03 AM EDT for Allegan County, Ottawa County, Van Buren County, Michigan. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Sep 12, 2021, 6:03 AM EDT (10:03 UTC)
- Expired
- Sep 12, 2021, 4:00 PM EDT
- In force
- 10 hr
- Issued by
- NWS Grand Rapids, MI
Counties Allegan County, MI, Ottawa County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 58 km from the middle of the area, began a volume at 10:03 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, 10.1 hours before the alert went out and 221 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
- 542 J/kg
- Mixed-layer CIN
- -225 J/kg
- Mixed-layer LCL
- 1165 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 255 m²/s²
- 0-3 km storm-relative helicity
- 417 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted.
650 WHUS43 KGRR 121003 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 603 AM EDT Sun Sep 12 2021 MIZ064-071-121500- /O.NEW.KGRR.BH.S.0024.210912T1003Z-210912T1500Z/ Allegan-Van Buren- 603 AM EDT Sun Sep 12 2021 ...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Allegan and Van Buren counties. * WHEN...Until 11 AM EDT this morning. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...South sides of piers will be especially dangerous, to include South Beach at South Haven. 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. && $$
2 follow-up statements
639 WHUS43 KGRR 121337 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 937 AM EDT Sun Sep 12 2021 MIZ056-122000- /O.EXB.KGRR.BH.S.0024.000000T0000Z-210912T2000Z/ Ottawa- 937 AM EDT Sun Sep 12 2021 ...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Ottawa county. * WHEN...Until 4 PM EDT this afternoon. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$ MIZ064-071-122000- /O.EXT.KGRR.BH.S.0024.000000T0000Z-210912T2000Z/ Allegan-Van Buren- 937 AM EDT Sun Sep 12 2021 ...BEACH HAZARDS STATEMENT NOW IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Allegan and Van Buren counties. * WHEN...Until 4 PM EDT this afternoon. * 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. && $$
131 WHUS43 KGRR 121951 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 351 PM EDT Sun Sep 12 2021 MIZ056-064-071-122100- /O.EXP.KGRR.BH.S.0024.000000T0000Z-210912T2000Z/ Ottawa-Allegan-Van Buren- 351 PM EDT Sun Sep 12 2021 ...BEACH HAZARDS STATEMENT WILL EXPIRE AT 4 PM EDT THIS AFTERNOON... Winds and waves have subsided below hazardous levels. $$
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 12, 6:01 AM EDT | Small Craft Advisory | GRR | 10 hr | |
| Sep 12, 2:29 PM EDT | Special Marine Warning | GRR | 61 min | |
| Sep 12, 2:42 PM EDT | Special Weather Statement | GRR | Lake, Mason, Newaygo, Oceana | 63 min |
| Sep 12, 3:50 PM EDT | Special Weather Statement | GRR | Isabella, Mecosta | 40 min |
| Sep 12, 4:29 PM EDT | Special Weather Statement | GRR | Isabella | 31 min |
| Sep 12, 4:56 PM EDT | Severe Thunderstorm Warning | GRR | Gratiot | 34 min |
| Sep 12, 5:31 PM EDT | Special Marine Warning | GRR | 82 min | |
| Sep 12, 6:22 PM EDT | Special Weather Statement | GRR | Muskegon, Ottawa | 53 min |
| Sep 12, 6:40 PM EDT | Severe Thunderstorm Warning | GRR | Muskegon, Ottawa | 35 min |
| Sep 12, 7:16 PM EDT | Severe Thunderstorm Warning | GRR | Gratiot, Montcalm | 45 min |
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.