Alert archive / Michigan / Wind Advisories in 2021
Wind Advisory 4, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this wind advisory at Nov 21, 2021, 10:32 AM EST for 6 counties in Michigan. It took effect at Nov 21, 2021, 4:00 PM EST. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Nov 21, 2021, 10:32 AM EST (15:32 UTC)
- In effect from
- Nov 21, 2021, 4:00 PM EST
- Expired
- Nov 21, 2021, 10:00 PM EST
- In force
- 6 hr
- Issued by
- NWS Grand Rapids, MI
Counties Allegan County, MI, Mason County, MI, Muskegon County, MI, Oceana County, MI, Ottawa County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 60 km from the middle of the area, began a volume at 15:31 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, 3.5 hours before the alert went out and 214 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1176 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 151 m²/s²
- 0-3 km storm-relative helicity
- 191 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
155 WWUS73 KGRR 211532 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 1032 AM EST Sun Nov 21 2021 MIZ037-043-050-056-064-071-212345- /O.NEW.KGRR.WI.Y.0004.211121T2100Z-211122T0300Z/ Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren- Including the cities of Ludington, Hart, Muskegon, Grand Haven, Jenison, Holland, and South Haven 1032 AM EST Sun Nov 21 2021 ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 PM EST THIS EVENING... * WHAT...West winds 15 to 30 mph with gusts up to 45 mph expected. * WHERE...Mason, Oceana, Muskegon, Ottawa, Allegan and Van Buren counties. * WHEN...From 4 PM this afternoon to 10 PM EST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Winds will increase abruptly this afternoon and evening behind the passage of a cold front. A noticable jump in the winds will occur between 4 PM and 7 PM for counties adjacent to the lakeshore. The highest winds will be felt along the immediate shoreline where gusts will eclipse 45 mph. Loose objects will be blown around by the wind. Scattered power outages are likely as leaves still remain on trees near the lakeshore. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/grr DUKE
2 follow-up statements
973 WWUS73 KGRR 212013 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 313 PM EST Sun Nov 21 2021 MIZ037-043-050-056-064-071-220300- /O.CON.KGRR.WI.Y.0004.211121T2100Z-211122T0300Z/ Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren- Including the cities of Ludington, Hart, Muskegon, Grand Haven, Jenison, Holland, and South Haven 313 PM EST Sun Nov 21 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...West winds 15 to 30 mph with gusts up to 45 mph expected. * WHERE...Mason, Oceana, Ottawa, Allegan, Van Buren and Muskegon counties. * WHEN...Until 10 PM EST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Winds will increase abruptly this afternoon and evening behind the passage of a cold front. A noticable jump in the winds will occur between 5 PM and 7 PM for counties adjacent to the lakeshore. The highest winds will be felt along the immediate shoreline where gusts will eclipse 45 mph. Loose objects will be blown around by the wind. Scattered power outages are likely as leaves still remain on trees near the lakeshore. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/grr DUKE
998 WWUS73 KGRR 220308 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 1008 PM EST Sun Nov 21 2021 MIZ037-043-050-056-064-071-220415- /O.EXP.KGRR.WI.Y.0004.000000T0000Z-211122T0300Z/ Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren- Including the cities of Ludington, Hart, Muskegon, Grand Haven, Jenison, Holland, and South Haven 1008 PM EST Sun Nov 21 2021 ...WIND ADVISORY HAS EXPIRED... The strongest wind gusts have already occurred and will gradually lower overnight. $$ For more information from the National Weather Service visit https://weather.gov/grr
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 21, 6:36 PM EST | Special Weather Statement | GRR | Barry, Calhoun, Clinton, Eaton, Ingham, Jackson | 54 min |
Nearby
Wind Advisories in Michigan, 2021Every wind advisory 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.