Alert archive / Michigan / Beach Hazards Statements in 2020
Beach Hazards Statement 9, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this beach hazards statement at Jul 17, 2020, 3:43 PM EDT for 4 counties in Michigan. It took effect at Jul 18, 2020, 8:00 AM EDT. It was in force for 40 hr.
The area
The counties it named.
The facts
- Issued
- Jul 17, 2020, 3:43 PM EDT (19:43 UTC)
- In effect from
- Jul 18, 2020, 8:00 AM EDT
- Expired
- Jul 20, 2020, 12:00 AM EDT
- In force
- 40 hr
- Issued by
- NWS Grand Rapids, MI
Counties Mason County, MI, Muskegon County, MI, Oceana County, MI, Ottawa County, MI
The radar
The Grand Rapids radar (KGRR), 87 km from the middle of the area, began a volume at 19:48 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, 7.7 hours before the alert went out and 184 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
- 1 J/kg
- Mixed-layer CIN
- -234 J/kg
- Mixed-layer LCL
- 1406 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 250 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
424 WHUS43 KGRR 171943 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 343 PM EDT Fri Jul 17 2020 MIZ037-043-050-180345- /O.NEW.KGRR.BH.S.0009.200718T1200Z-200719T0400Z/ Mason-Oceana-Muskegon- 343 PM EDT Fri Jul 17 2020 ...BEACH HAZARDS STATEMENT IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana and Muskegon counties. * WHEN...From Saturday morning through Saturday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...South winds will increase on Saturday to 15 to 25 mph, with waves building to 3 to 5 feet north of Grand Haven. The south side of south piers will be most dangerous such as at Pere Marquette Park in Muskegon and Grand Haven State Park, however the highest waves should be north of Whitehall. Thunderstorms will impact Lake Michigan at times over the weekend, and some storms could be strong to severe. 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. && $$
9 follow-up statements
584 WHUS43 KGRR 180147 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 947 PM EDT Fri Jul 17 2020 MIZ037-043-050-181000- /O.CON.KGRR.BH.S.0009.200718T1200Z-200719T0400Z/ Mason-Oceana-Muskegon- 947 PM EDT Fri Jul 17 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 8 AM EDT SATURDAY THROUGH SATURDAY EVENING... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana and Muskegon counties. * WHEN...From Saturday morning through Saturday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...South winds will increase on Saturday to 15 to 25 mph, with waves building to 3 to 5 feet north of Grand Haven. The south side of south piers will be most dangerous such as at Pere Marquette Park in Muskegon and Grand Haven State Park, however the highest waves should be north of Whitehall. Thunderstorms will impact Lake Michigan at times over the weekend, and some storms could be strong to severe. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$
442 WHUS43 KGRR 180807 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 407 AM EDT Sat Jul 18 2020 MIZ056-181615- /O.EXA.KGRR.BH.S.0009.200718T1200Z-200719T0400Z/ Ottawa- 407 AM EDT Sat Jul 18 2020 ...BEACH HAZARDS STATEMENT IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THIS EVENING... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Ottawa county. * WHEN...From Saturday morning through Saturday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...South winds will increase to 15 to 25 mph, with waves building to 3 to 5 feet north of Holland. The south side of south piers will be most dangerous such as at Grand Haven State Park. Thunderstorms will impact Lake Michigan tonight into Sunday morning. Storms could be strong to severe. 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. && $$ MIZ037-043-050-181615- /O.CON.KGRR.BH.S.0009.200718T1200Z-200719T0400Z/ Mason-Oceana-Muskegon- 407 AM EDT Sat Jul 18 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THIS EVENING... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana and Muskegon counties. * WHEN...From Saturday morning through Saturday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...South winds will increase to 15 to 25 mph, with waves building to 3 to 5 feet. The south side of south piers will be most dangerous such as at Pere Marquette Park in Muskegon and Grand Haven State Park, however the highest waves should be north of Whitehall. Thunderstorms could be strong to severe tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$ wdm
327 WHUS43 KGRR 181959 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 359 PM EDT Sat Jul 18 2020 MIZ064-190400- /O.NEW.KGRR.BH.S.0010.200719T0600Z-200720T0000Z/ Allegan- 359 PM EDT Sat Jul 18 2020 ...BEACH HAZARDS STATEMENT IN EFFECT FROM 2 AM EDT SUNDAY THROUGH SUNDAY EVENING... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Allegan county. * WHEN...From 2 AM EDT Sunday through Sunday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...South winds 15 to 25 mph will conitnue overnight, with waves building to 3 to 5 feet north of Holland. The south side of south piers will be most dangerous such as at Grand Haven State Park. Thunderstorms will impact Lake Michigan tonight into Sunday morning. Storms could be strong to severe. 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. && $$ MIZ037-043-050-056-190400- /O.EXT.KGRR.BH.S.0009.000000T0000Z-200720T0000Z/ Mason-Oceana-Muskegon-Ottawa- 359 PM EDT Sat Jul 18 2020 ...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH SUNDAY EVENING... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Muskegon and Ottawa counties. * WHEN...Through Sunday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...South winds will be to 15 to 25 mph, with waves building to 3 to 5 feet. The south side of south piers will be most dangerous such as at Pere Marquette Park in Muskegon and Grand Haven State Park, however the highest waves should be north of Whitehall. Thunderstorms could be strong to severe tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$
155 WHUS43 KGRR 190108 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 908 PM EDT Sat Jul 18 2020 MIZ037-043-050-056-190915- /O.CON.KGRR.BH.S.0009.000000T0000Z-200720T0000Z/ Mason-Oceana-Muskegon-Ottawa- 908 PM EDT Sat Jul 18 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SUNDAY EVENING... * 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 Sunday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...South winds will be to 15 to 25 mph, with waves of 3 to 5 feet. The south side of south piers will be most dangerous such as at Pere Marquette Park in Muskegon and Grand Haven State Park, however the highest waves should be north of Whitehall. Thunderstorms could be strong to severe tonight. 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. && $$ MIZ064-190915- /O.CON.KGRR.BH.S.0010.200719T0600Z-200720T0000Z/ Allegan- 908 PM EDT Sat Jul 18 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 2 AM EDT SUNDAY THROUGH SUNDAY EVENING... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Allegan county. * WHEN...From 2 AM EDT Sunday through Sunday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...South winds 15 to 25 mph will develop overnight, with waves building to 3 to 5 feet by Sunday. The south side of south piers will be most dangerous. Thunderstorms will impact Lake Michigan tonight into Sunday morning. Storms could be strong to severe. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$
869 WHUS43 KGRR 190749 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 349 AM EDT Sun Jul 19 2020 MIZ037-043-050-056-191600- /O.CON.KGRR.BH.S.0009.000000T0000Z-200720T0000Z/ Mason-Oceana-Muskegon-Ottawa- 349 AM EDT Sun Jul 19 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS EVENING... * 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 Sunday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...West winds of 15 to 25 mph will cause hazardous surf conditions into this evening. Thunderstorms remain possible into late this morning. 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. && $$ MIZ064-191600- /O.CON.KGRR.BH.S.0010.000000T0000Z-200720T0000Z/ Allegan- 349 AM EDT Sun Jul 19 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS EVENING... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Allegan county. * WHEN...Through Sunday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...West winds of 15 to 25 mph will cause hazardous surf conditions into this evening. Thunderstorms remain possible into late this morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$ wdm
636 WHUS43 KGRR 191526 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 1126 AM EDT Sun Jul 19 2020 MIZ071-192330- /O.EXA.KGRR.BH.S.0010.000000T0000Z-200720T0000Z/ Van Buren- 1126 AM EDT Sun Jul 19 2020 ...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Van Buren county. * WHEN...Until 8 PM EDT this evening. * 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. && $$ MIZ037-043-050-056-192330- /O.CON.KGRR.BH.S.0009.000000T0000Z-200720T0000Z/ Mason-Oceana-Muskegon-Ottawa- 1126 AM EDT Sun Jul 19 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Ottawa and Muskegon counties. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$ MIZ064-192330- /O.CON.KGRR.BH.S.0010.000000T0000Z-200720T0000Z/ Allegan- 1126 AM EDT Sun Jul 19 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Allegan county. * WHEN...Until 8 PM EDT this evening. * 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. && $$
475 WHUS43 KGRR 192007 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 407 PM EDT Sun Jul 19 2020 MIZ037-043-050-056-200000- /O.CON.KGRR.BH.S.0009.000000T0000Z-200720T0000Z/ Mason-Oceana-Muskegon-Ottawa- 407 PM EDT Sun Jul 19 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Ottawa and Muskegon counties. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$ MIZ064-071-200000- /O.CON.KGRR.BH.S.0010.000000T0000Z-200720T0000Z/ Allegan-Van Buren- 407 PM EDT Sun Jul 19 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * 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 8 PM EDT this evening. * 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. && $$
810 WHUS43 KGRR 192307 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 707 PM EDT Sun Jul 19 2020 MIZ037-043-050-056-200400- /O.EXT.KGRR.BH.S.0009.000000T0000Z-200720T0400Z/ Mason-Oceana-Muskegon-Ottawa- 707 PM EDT Sun Jul 19 2020 ...BEACH HAZARDS STATEMENT NOW IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... * WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Ottawa and Muskegon counties. * WHEN...Until midnight EDT tonight. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures. && $$ MIZ064-071-200400- /O.EXT.KGRR.BH.S.0010.000000T0000Z-200720T0400Z/ Allegan-Van Buren- 707 PM EDT Sun Jul 19 2020 ...BEACH HAZARDS STATEMENT NOW IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... * 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 midnight EDT 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. && $$
247 WHUS43 KGRR 200349 CFWGRR Coastal Hazard Message National Weather Service Grand Rapids MI 1149 PM EDT Sun Jul 19 2020 MIZ037-043-050-056-200500- /O.EXP.KGRR.BH.S.0009.000000T0000Z-200720T0400Z/ Mason-Oceana-Muskegon-Ottawa- 1149 PM EDT Sun Jul 19 2020 ...BEACH HAZARDS STATEMENT WILL EXPIRE AT MIDNIGHT EDT TONIGHT... The waves will continue to subside through the remainder of the night...remaining under 4 feet. $$ MIZ064-071-200500- /O.EXP.KGRR.BH.S.0010.000000T0000Z-200720T0400Z/ Allegan-Van Buren- 1149 PM EDT Sun Jul 19 2020 ...BEACH HAZARDS STATEMENT WILL EXPIRE AT MIDNIGHT EDT TONIGHT... The waves will continue to subside through the remainder of the night...remaining under 4 feet. $$
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 3:45 PM EDT | Small Craft Advisory | GRR | 52 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.