Alert archive / Michigan / Beach Hazards Statements in 2021
Beach Hazards Statement 6, NWS Detroit, MI
NWS Detroit, MI issued this beach hazards statement at Jul 29, 2021, 12:24 PM EDT for Huron County, Saint Clair County, Sanilac County, Michigan. It took effect at Jul 30, 2021, 8:00 AM EDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Jul 29, 2021, 12:24 PM EDT (16:24 UTC)
- In effect from
- Jul 30, 2021, 8:00 AM EDT
- Expired
- Jul 30, 2021, 8:00 PM EDT
- In force
- 12 hr
- Issued by
- NWS Detroit, MI
Counties Huron County, MI, Saint Clair County, MI, Sanilac County, MI
The radar
The Detroit radar (KDTX), 101 km from the middle of the area, began a volume at 16:27 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 12:00Z, 4.4 hours before the alert went out and 98 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
- 2208 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 638 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 141 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 7.9
The text
As transmitted.
426 WHUS43 KDTX 291624 CFWDTX Coastal Hazard Message National Weather Service Detroit/Pontiac MI 1224 PM EDT Thu Jul 29 2021 MIZ049-055-063-300030- /O.NEW.KDTX.BH.S.0006.210730T1200Z-210730T2000Z/ Huron-Sanilac-St. Clair- 1224 PM EDT Thu Jul 29 2021 ...BEACH HAZARDS STATEMENT IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... * WHAT...High wave action and dangerous swimming conditions expected. * WHERE...Huron, Sanilac and St. Clair Counties. * WHEN...From Friday morning through Friday afternoon. * IMPACTS...Strong currents can pull swimmers into deeper water. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
4 follow-up statements
451 WHUS43 KDTX 300037 CFWDTX Coastal Hazard Message National Weather Service Detroit/Pontiac MI 837 PM EDT Thu Jul 29 2021 MIZ049-055-063-300900- /O.CON.KDTX.BH.S.0006.210730T1200Z-210730T2000Z/ Huron-Sanilac-St. Clair- 837 PM EDT Thu Jul 29 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 8 AM EDT FRIDAY THROUGH FRIDAY AFTERNOON... * WHAT...High wave action and dangerous swimming conditions expected. * WHERE...Huron, Sanilac and St. Clair Counties. * WHEN...From 8 AM EDT Friday through Friday afternoon. * IMPACTS...Strong currents can pull swimmers into deeper water. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
476 WHUS43 KDTX 300732 CFWDTX Coastal Hazard Message National Weather Service Detroit/Pontiac MI 332 AM EDT Fri Jul 30 2021 MIZ049-055-063-302000- /O.CON.KDTX.BH.S.0006.210730T1200Z-210730T2000Z/ Huron-Sanilac-St. Clair- 332 AM EDT Fri Jul 30 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THIS AFTERNOON... * WHAT...High wave action and dangerous swimming conditions expected. * WHERE...Huron, Sanilac and St. Clair Counties. * WHEN...From 8 AM EDT this morning through this afternoon. * IMPACTS...Strong currents can pull swimmers into deeper water. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
831 WHUS43 KDTX 301935 CFWDTX Coastal Hazard Message National Weather Service Detroit/Pontiac MI 335 PM EDT Fri Jul 30 2021 MIZ049-055-063-310000- /O.EXT.KDTX.BH.S.0006.000000T0000Z-210731T0000Z/ Huron-Sanilac-St. Clair- 335 PM EDT Fri Jul 30 2021 ...BEACH HAZARDS STATEMENT NOW IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...High wave action and dangerous swimming conditions expected. * WHERE...Huron, Sanilac and St. Clair Counties. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Strong currents can pull swimmers into deeper water. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
132 WHUS43 KDTX 310008 CFWDTX Coastal Hazard Message National Weather Service Detroit/Pontiac MI 808 PM EDT Fri Jul 30 2021 MIZ049-055-063-310115- /O.EXP.KDTX.BH.S.0006.000000T0000Z-210731T0000Z/ Huron-Sanilac-St. Clair- 808 PM EDT Fri Jul 30 2021 ...BEACH HAZARDS STATEMENT HAS EXPIRED... Hazardous beach conditions, including rip currents, are no longer anticipated for Lake Huron beaches along the Thumb, thus the Beach Hazards Statement has been allowed to expire. $$
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 4:52 AM EDT | Special Weather Statement | DTX | Huron | 53 min |
| Jul 29, 5:11 AM EDT | Special Weather Statement | DTX | Sanilac, Tuscola | 64 min |
| Jul 29, 5:36 AM EDT | Special Marine Warning | DTX | 84 min | |
| Jul 29, 9:58 AM EDT | Small Craft Advisory | DTX | 34 hr | |
| Jul 29, 6:37 PM EDT | Special Weather Statement | DTX | Lapeer | 38 min |
| Jul 29, 7:58 PM EDT | Special Weather Statement | DTX | Macomb | 47 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.