Alert archive / Michigan / Frost Advisories in 2021
Frost Advisory 6, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this frost advisory at May 13, 2021, 12:00 PM EDT for 16 counties in Michigan. It took effect at May 14, 2021, 12:00 AM EDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- May 13, 2021, 12:00 PM EDT (16:00 UTC)
- In effect from
- May 14, 2021, 12:00 AM EDT
- Expired
- May 14, 2021, 6:59 AM EDT
- In force
- 7 hr
- Issued by
- NWS Grand Rapids, MI
Counties Allegan County, MI, Barry County, MI, Calhoun County, MI, Clinton County, MI, Eaton County, MI, Gratiot County, MI, Ingham County, MI, Ionia County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Montcalm County, MI, Muskegon County, MI, Ottawa County, MI, Van Buren County, MI
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 4.0 hours before the alert went out and 148 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
- 2195 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
626 WWUS73 KGRR 131600 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 1200 PM EDT Thu May 13 2021 MIZ037>040-043>045-140000- /O.NEW.KGRR.FZ.W.0011.210514T0400Z-210514T1200Z/ Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta- Including the cities of Ludington, Baldwin, Reed City, Clare, Hart, Fremont, and Big Rapids 1200 PM EDT Thu May 13 2021 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Portions of central and west central Michigan. * WHEN...From midnight tonight to 8 AM EDT Friday. * IMPACTS...Freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MIZ046-050>052-056>059-064>067-071>074-140000- /O.NEW.KGRR.FR.Y.0006.210514T0400Z-210514T1200Z/ Isabella-Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton- Allegan-Barry-Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- Including the cities of Mount Pleasant, Muskegon, Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, Battle Creek, and Jackson 1200 PM EDT Thu May 13 2021 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT FRIDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of central, south central, southwest and west central Michigan. * WHEN...From midnight tonight to 8 AM EDT Friday. * IMPACTS...Temperatures near freezing could harm plants and other sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...A few locations in Van Buren and Allegan County may briefly drop below freezing around sunrise. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/grr
4 follow-up statements
340 WWUS73 KGRR 131950 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 350 PM EDT Thu May 13 2021 MIZ037>040-043>045-140400- /O.CON.KGRR.FZ.W.0011.210514T0400Z-210514T1200Z/ Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta- Including the cities of Ludington, Baldwin, Reed City, Clare, Hart, Fremont, and Big Rapids 350 PM EDT Thu May 13 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Portions of central and west central Michigan. * WHEN...From midnight tonight to 8 AM EDT Friday. * IMPACTS...Freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MIZ046-050>052-056>059-064>067-071>074-140400- /O.CON.KGRR.FR.Y.0006.210514T0400Z-210514T1200Z/ Isabella-Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton- Allegan-Barry-Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- Including the cities of Mount Pleasant, Muskegon, Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, Battle Creek, and Jackson 350 PM EDT Thu May 13 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT FRIDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of central, south central, southwest and west central Michigan. * WHEN...From midnight tonight to 8 AM EDT Friday. * IMPACTS...Temperatures near freezing could harm plants and other sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Some locations in Van Buren and Allegan Counties may briefly drop below freezing around sunrise. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/grr
643 WWUS73 KGRR 140152 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 952 PM EDT Thu May 13 2021 MIZ037>040-043>045-141000- /O.CON.KGRR.FZ.W.0011.210514T0400Z-210514T1200Z/ Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta- Including the cities of Ludington, Baldwin, Reed City, Clare, Hart, Fremont, and Big Rapids 952 PM EDT Thu May 13 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Portions of central and west central Michigan. * WHEN...From midnight tonight to 8 AM EDT Friday. * IMPACTS...Freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MIZ046-050>052-056>059-064>067-071>074-141000- /O.CON.KGRR.FR.Y.0006.210514T0400Z-210514T1200Z/ Isabella-Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton- Allegan-Barry-Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- Including the cities of Mount Pleasant, Muskegon, Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, Battle Creek, and Jackson 952 PM EDT Thu May 13 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT FRIDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of central, south central, southwest and west central Michigan. * WHEN...From midnight tonight to 8 AM EDT Friday. * IMPACTS...Temperatures near freezing could harm plants and other sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/grr
962 WWUS73 KGRR 140815 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 415 AM EDT Fri May 14 2021 MIZ037>040-043>045-141200- /O.CON.KGRR.FZ.W.0011.000000T0000Z-210514T1200Z/ Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta- Including the cities of Ludington, Baldwin, Reed City, Clare, Hart, Fremont, and Big Rapids 415 AM EDT Fri May 14 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 31 degrees. * WHERE...Portions of central and west central Michigan. * WHEN...Until 8 AM EDT this morning. * IMPACTS...Freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MIZ046-050>052-056>059-064>067-071>074-141200- /O.CON.KGRR.FR.Y.0006.000000T0000Z-210514T1200Z/ Isabella-Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton- Allegan-Barry-Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- Including the cities of Mount Pleasant, Muskegon, Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, Battle Creek, and Jackson 415 AM EDT Fri May 14 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Temperatures as low as 33 degrees will result in frost formation. * WHERE...Portions of central, south central, southwest and west central Michigan. * WHEN...Until 8 AM EDT this morning. * IMPACTS...Temperatures near freezing could harm plants and other sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/grr
645 WWUS73 KGRR 141059 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 659 AM EDT Fri May 14 2021 MIZ037>040-043>045-141200- /O.CAN.KGRR.FZ.W.0011.000000T0000Z-210514T1200Z/ Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta- Including the cities of Ludington, Baldwin, Reed City, Clare, Hart, Fremont, and Big Rapids 659 AM EDT Fri May 14 2021 ...FREEZE WARNING IS CANCELLED... Temperatures are rising quickly so the threat of freezing temperatures has ended. $$ MIZ046-050>052-056>059-064>067-071>074-141200- /O.CAN.KGRR.FR.Y.0006.000000T0000Z-210514T1200Z/ Isabella-Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton- Allegan-Barry-Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- Including the cities of Mount Pleasant, Muskegon, Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, Battle Creek, and Jackson 659 AM EDT Fri May 14 2021 ...FROST ADVISORY IS CANCELLED... Temperatures are rising quickly so the threat of frost has ended. $$ 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 |
|---|---|---|---|---|
| May 13, 12:00 PM EDT | Freeze Warning | GRR | Clare, Lake, Mason, Mecosta, Newaygo, Oceana and 1 more | 19 hr |
Nearby
Frost Advisories in Michigan, 2021Every frost 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.