Alert archive / Michigan / Freeze Warnings in 2021
Freeze Warning 2, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this freeze warning at Apr 19, 2021, 3:42 AM EDT for 4 counties in Michigan. It took effect at Apr 20, 2021, 1:00 AM EDT. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 19, 2021, 3:42 AM EDT (07:42 UTC)
- In effect from
- Apr 20, 2021, 1:00 AM EDT
- Expired
- Apr 20, 2021, 8:00 AM EDT
- In force
- 7 hr
- Issued by
- NWS Grand Rapids, MI
Counties Lake County, MI, Mason County, MI, Newaygo County, MI, Oceana County, MI
The radar
The Grand Rapids radar (KGRR), 109 km from the middle of the area, began a volume at 07:40 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 00:00Z, 7.7 hours before the alert went out and 178 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
- 2185 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
739 WWUS73 KGRR 190742 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 342 AM EDT Mon Apr 19 2021 MIZ037-038-043-044-192100- /O.NEW.KGRR.FZ.W.0002.210420T0500Z-210420T1200Z/ /O.NEW.KGRR.FZ.A.0001.210421T0000Z-210422T1500Z/ Mason-Lake-Oceana-Newaygo- Including the cities of Ludington, Baldwin, Hart, and Fremont 342 AM EDT Mon Apr 19 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY FOR PARTS OF CENTRAL MICHIGAN... ...FREEZE WATCH IN EFFECT FROM TUESDAY EVENING THROUGH THURSDAY MORNING FOR MUCH OF WESTERN LOWER MICHIGAN... * WHAT...For the Freeze Warning tonight, sub-freezing temperatures in the mid 20s to low 30s are expected. For the Freeze Watch, sub-freezing temperatures in the 20s are possible both Tuesday and Wednesday nights. * WHERE...Mason, Lake, Oceana and Newaygo counties. * WHEN...For the Freeze Warning, from 1 AM to 8 AM EDT Tuesday. For the Freeze Watch, from Tuesday evening through Thursday morning. * IMPACTS...Frost and freeze conditions may damage budding fruit trees and other sensitive vegetation. Cold temperatures could possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MIZ050>052-056>059-064>067-071>074-192100- /O.NEW.KGRR.FZ.A.0001.210421T0000Z-210422T1500Z/ Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry- Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- Including the cities of Muskegon, Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, Battle Creek, and Jackson 342 AM EDT Mon Apr 19 2021 ...FREEZE WATCH IN EFFECT FROM TUESDAY EVENING THROUGH THURSDAY MORNING... * WHAT...Sub-freezing temperatures in the 20s are possible both Tuesday and Wednesday nights. * WHERE...Much of Western Lower Michigan. * WHEN...From Tuesday evening through Thursday morning. * IMPACTS...Frost and freeze conditions may damage budding fruit trees and other sensitive vegetation. Cold temperatures could possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/grr
4 follow-up statements
300 WWUS73 KGRR 191551 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 1151 AM EDT Mon Apr 19 2021 MIZ037-038-043-044-200000- /O.CON.KGRR.FZ.W.0002.210420T0500Z-210420T1200Z/ /O.CON.KGRR.FZ.A.0001.210421T0000Z-210422T1500Z/ Mason-Lake-Oceana-Newaygo- Including the cities of Ludington, Baldwin, Hart, and Fremont 1151 AM EDT Mon Apr 19 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... ...FREEZE WATCH REMAINS IN EFFECT FROM TUESDAY EVENING THROUGH THURSDAY MORNING... * WHAT...For the Freeze Warning tonight, sub-freezing temperatures in the mid 20s to low 30s are expected. For the Freeze Watch, sub-freezing temperatures in the 20s are possible both Tuesday and Wednesday nights. * WHERE...Mason, Lake, Oceana and Newaygo counties. * WHEN...For the Freeze Warning, from 1 AM to 8 AM EDT Tuesday. For the Freeze Watch, from Tuesday evening through Thursday morning. * IMPACTS...Frost and freeze conditions may damage budding fruit trees and other sensitive vegetation. Cold temperatures could possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MIZ050>052-056>059-064>067-071>074-200000- /O.CON.KGRR.FZ.A.0001.210421T0000Z-210422T1500Z/ Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry- Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- Including the cities of Muskegon, Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, Battle Creek, and Jackson 1151 AM EDT Mon Apr 19 2021 ...FREEZE WATCH REMAINS IN EFFECT FROM TUESDAY EVENING THROUGH THURSDAY MORNING... * WHAT...Sub-freezing temperatures in the 20s are possible both Tuesday and Wednesday nights. * WHERE...Much of Western Lower Michigan. * WHEN...From Tuesday evening through Thursday morning. * IMPACTS...Frost and freeze conditions may damage budding fruit trees and other sensitive vegetation. Cold temperatures could possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/grr
406 WWUS73 KGRR 191930 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 330 PM EDT Mon Apr 19 2021 MIZ037-038-043-044-200330- /O.UPG.KGRR.FZ.A.0001.210421T0000Z-210422T1500Z/ /O.NEW.KGRR.FZ.W.0003.210421T0000Z-210422T1500Z/ /O.CON.KGRR.FZ.W.0002.210420T0500Z-210420T1200Z/ Mason-Lake-Oceana-Newaygo- Including the cities of Ludington, Baldwin, Hart, and Fremont 330 PM EDT Mon Apr 19 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... ...FREEZE WARNING IN EFFECT FROM 8 PM TUESDAY TO 11 AM EDT THURSDAY... * WHAT...For the Freeze Warning tonight, sub-freezing temperatures of 25 to 30. For the second Freeze Warning, sub- freezing temperatures in the lower to mid 20s are expected both Tuesday and Wednesday nights. Slightly warmer temperatures possible along the Lake Michigan shoreline, especially on Wednesday night. * WHERE...Mason, Lake, Oceana and Newaygo counties. * WHEN...For the first Freeze Warning, from 1 AM to 8 AM EDT Tuesday. For the second Freeze Warning, from 8 PM Tuesday to 11 AM EDT Thursday. * IMPACTS...Widespread freeze conditions will damage budding fruit trees and other sensitive vegetation. Crop losses possible. Cold temperatures could damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps to protect tender plants from the cold the next few nights, if possible. && $$ MIZ050>052-056>059-064>067-071>074-200330- /O.UPG.KGRR.FZ.A.0001.210421T0000Z-210422T1500Z/ /O.NEW.KGRR.FZ.W.0003.210421T0000Z-210422T1500Z/ Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry- Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- Including the cities of Muskegon, Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, Battle Creek, and Jackson 330 PM EDT Mon Apr 19 2021 ...FREEZE WARNING IN EFFECT FROM 8 PM TUESDAY TO 11 AM EDT THURSDAY... * WHAT...Sub-freezing temperatures in the mid 20s expected both Tuesday and Wednesday nights. Slightly warmer temperatures possible along the Lake Michigan shoreline, mainly on Wednesday night. * WHERE...Much of Western Lower Michigan. * WHEN...From 8 PM Tuesday to 11 AM EDT Thursday. * IMPACTS...Widespread freeze conditions will damage budding fruit trees and other sensitive vegetation. Crop losses possible. Cold temperatures could damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps to protect tender plants from the cold, if possible. && $$ For more information from the National Weather Service visit https://weather.gov/grr
529 WWUS73 KGRR 200104 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 904 PM EDT Mon Apr 19 2021 MIZ037-038-043-044-200915- /O.CON.KGRR.FZ.W.0002.210420T0500Z-210420T1200Z/ /O.CON.KGRR.FZ.W.0003.210421T0000Z-210422T1500Z/ Mason-Lake-Oceana-Newaygo- Including the cities of Ludington, Baldwin, Hart, and Fremont 904 PM EDT Mon Apr 19 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... ...FREEZE WARNING REMAINS IN EFFECT FROM 8 PM TUESDAY TO 11 AM EDT THURSDAY... * WHAT...For the Freeze Warning tonight, sub-freezing temperatures of 25 to 30. For the second Freeze Warning, sub- freezing temperatures in the lower to mid 20s are expected both Tuesday and Wednesday nights. Slightly warmer temperatures possible along the Lake Michigan shoreline, especially on Wednesday night. * WHERE...Mason, Lake, Oceana and Newaygo counties. * WHEN...For the first Freeze Warning, from 1 AM to 8 AM EDT Tuesday. For the second Freeze Warning, from 8 PM Tuesday to 11 AM EDT Thursday. * IMPACTS...Widespread freeze conditions will damage budding fruit trees and other sensitive vegetation. Crop losses possible. Cold temperatures could damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MIZ050>052-056>059-064>067-071>074-200915- /O.CON.KGRR.FZ.W.0003.210421T0000Z-210422T1500Z/ Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry- Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- Including the cities of Muskegon, Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, Battle Creek, and Jackson 904 PM EDT Mon Apr 19 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 8 PM TUESDAY TO 11 AM EDT THURSDAY... * WHAT...Sub-freezing temperatures in the mid 20s expected both Tuesday and Wednesday nights. Slightly warmer temperatures possible along the Lake Michigan shoreline, mainly on Wednesday night. * WHERE...Much of Western Lower Michigan. * WHEN...From 8 PM Tuesday to 11 AM EDT Thursday. * IMPACTS...Widespread freeze conditions will damage budding fruit trees and other sensitive vegetation. Crop losses possible. Cold temperatures could damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/grr
029 WWUS73 KGRR 200757 NPWGRR URGENT - WEATHER MESSAGE National Weather Service Grand Rapids MI 357 AM EDT Tue Apr 20 2021 MIZ037-038-043-044-201600- /O.CON.KGRR.FZ.W.0002.000000T0000Z-210420T1200Z/ /O.CON.KGRR.FZ.W.0003.210421T0000Z-210422T1500Z/ Mason-Lake-Oceana-Newaygo- Including the cities of Ludington, Baldwin, Hart, and Fremont 357 AM EDT Tue Apr 20 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... ...FREEZE WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 11 AM EDT THURSDAY... * WHAT...For the Freeze Warning early this morning, sub- freezing temperatures of 25 to 30. For the second Freeze Warning, sub- freezing temperatures in the lower to mid 20s are expected both tonight and Wednesday nights. Slightly warmer temperatures possible along the Lake Michigan shoreline, especially on Wednesday night. * WHERE...Mason, Lake, Oceana and Newaygo counties. * WHEN...For the first Freeze Warning, till 8 AM EDT this morning. For the second Freeze Warning, from 8 PM Today to 11 AM EDT Thursday. * IMPACTS...Widespread freeze conditions will damage budding fruit trees and other sensitive vegetation. Crop losses possible. Cold temperatures could damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MIZ050>052-056>059-064>067-071>074-201600- /O.CON.KGRR.FZ.W.0003.210421T0000Z-210422T1500Z/ Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry- Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- Including the cities of Muskegon, Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, Battle Creek, and Jackson 357 AM EDT Tue Apr 20 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 11 AM EDT THURSDAY... * WHAT...Sub-freezing temperatures in the mid 20s expected both tonight and Wednesday nights. Slightly warmer temperatures possible along the Lake Michigan shoreline, mainly on Wednesday night. * WHERE...Much of Western Lower Michigan. * WHEN...From 8 PM tonight to 11 AM EDT Thursday. * IMPACTS...Widespread freeze conditions will damage budding fruit trees and other sensitive vegetation. Crop losses possible. Cold temperatures could damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/grr
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 3:42 AM EDT | Freeze Watch | GRR | Allegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 13 more | 12 hr |
| Apr 19, 3:30 PM EDT | Freeze Warning | GRR | Allegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 13 more | 66 hr |
Nearby
Freeze Warnings in Michigan, 2021Every freeze warning 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.