Alert archive / Michigan / Winter Storm Warnings in 2021
Winter Storm Warning 2, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this winter storm warning at Feb 15, 2021, 2:20 PM EST for Calhoun County, Ingham County, Jackson County, Michigan. It was in force for 22 hr. 8 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Feb 15, 2021, 2:20 PM EST (19:20 UTC)
- Expired
- Feb 16, 2021, 12:00 PM EST
- In force
- 22 hr
- Issued by
- NWS Grand Rapids, MI
Counties Calhoun County, MI, Ingham County, MI, Jackson County, MI
The radar
The Grand Rapids radar (KGRR), 97 km from the middle of the area, began a volume at 19:19 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 15, 10:36 PM EST | SNOW 2.5 | Holt, MI | STORM TOTAL SO FAR. DRIFTING SNOW OCCURRING. |
| Feb 16, 4:30 AM EST | SNOW 8 | Holt, MI | UPDATES PREVIOUS SNOW REPORT. MEASUREMENTS VARIED DUE TO DRIFTING. |
| Feb 16, 4:30 AM EST | SNOW 9 | Holt, MI | MEASUREMENTS VARIED DUE TO DRIFTING. |
| Feb 16, 6:00 AM EST | SNOW 8.5 | Parma, MI | |
| Feb 16, 7:00 AM EST | SNOW 8 | Lansing, MI | |
| Feb 16, 8:00 AM EST | SNOW 8 | Albion, MI | |
| Feb 16, 8:00 AM EST | SNOW 8.8 | 1 Ssw Marshall, MI | |
| Feb 16, 8:54 AM EST | SNOW 8.8 | Okemos, MI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 7.3 hours before the alert went out and 104 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
- 686 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 189 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
656 WWUS43 KGRR 151920 WSWGRR URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Rapids MI 220 PM EST Mon Feb 15 2021 MIZ067-073-074-160330- /O.UPG.KGRR.WW.Y.0010.000000T0000Z-210216T1700Z/ /O.NEW.KGRR.WS.W.0002.210215T1920Z-210216T1700Z/ Ingham-Calhoun-Jackson- Including the cities of Lansing, Battle Creek, and Jackson 220 PM EST Mon Feb 15 2021 ...WINTER STORM WARNING IN EFFECT UNTIL NOON EST TUESDAY... * WHAT...Heavy snow expected. Additional snow accumulations of 5 to 8 inches with locally higher amounts to 10 inches possible. * WHERE...Ingham, Calhoun and Jackson counties. * WHEN...Until noon EST Tuesday. * IMPACTS...Travel will be very hazardous starting this evening and lasting into Tuesday morning. Blowing snow could significantly reduce visibility and cause snow drifts on area roadways. Major impacts to the Tuesday morning commute are expected along with disruptions to normal activities potentially lasting throughout the day even after the snow ends. Wind chill readings will be below zero. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ MIZ046-160330- /O.EXA.KGRR.WW.Y.0010.000000T0000Z-210216T1700Z/ Isabella- Including the city of Mount Pleasant 220 PM EST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON EST TUESDAY... * WHAT...Snow. Additional snow accumulations of 2 to 4 inches. * WHERE...Isabella county. * WHEN...Until noon EST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact overnight travel as well as the Tuesday morning commute. Areas of blowing snow are also possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ MIZ051-052-056>059-064>066-071-072-160330- /O.CON.KGRR.WW.Y.0010.000000T0000Z-210216T1700Z/ Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton- Van Buren-Kalamazoo- Including the cities of Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, South Haven, and Kalamazoo 220 PM EST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST TUESDAY... * WHAT...Snow. Additional snow accumulations of 4 to 7 inches. * WHERE...Portions of central, south central and southwest Michigan. * WHEN...Until noon EST Tuesday. * IMPACTS...Travel will be difficult starting this evening and lasting into Tuesday morning. Blowing snow could significantly reduce visibility and cause snow drifts on area roadways. The Tuesday morning commute will be impacted with some disruptions to normal activities expected. Wind chill readings will be below zero. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ www.weather.gov/grr
3 follow-up statements
722 WWUS43 KGRR 160211 WSWGRR URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Rapids MI 911 PM EST Mon Feb 15 2021 MIZ067-073-074-161015- /O.CON.KGRR.WS.W.0002.000000T0000Z-210216T1700Z/ Ingham-Calhoun-Jackson- Including the cities of Lansing, Battle Creek, and Jackson 911 PM EST Mon Feb 15 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST TUESDAY... * WHAT...Heavy snow. Additional snow accumulations of 4 to 6 inches. * WHERE...Ingham, Jackson and Calhoun counties. * WHEN...Until noon EST Tuesday. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ MIZ046-051-052-056>059-064>066-071-072-161015- /O.CON.KGRR.WW.Y.0010.000000T0000Z-210216T1700Z/ Isabella-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry- Eaton-Van Buren-Kalamazoo- Including the cities of Mount Pleasant, Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, South Haven, and Kalamazoo 911 PM EST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST TUESDAY... * WHAT...Snow. Additional snow accumulations of 3 to 5 inches. * WHERE...Portions of central, south central and southwest Michigan. * WHEN...Until noon EST Tuesday. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ www.weather.gov/grr
726 WWUS43 KGRR 160836 WSWGRR URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Rapids MI 336 AM EST Tue Feb 16 2021 MIZ067-073-074-161645- /O.CON.KGRR.WS.W.0002.000000T0000Z-210216T1700Z/ Ingham-Calhoun-Jackson- Including the cities of Lansing, Battle Creek, and Jackson 336 AM EST Tue Feb 16 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON EST TODAY... * WHAT...Heavy snow. Additional snow accumulations of up to two inches. * WHERE...Ingham, Jackson and Calhoun counties. * WHEN...Until noon EST today. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ MIZ046-051-052-056>059-064>066-071-072-161645- /O.CON.KGRR.WW.Y.0010.000000T0000Z-210216T1700Z/ Isabella-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry- Eaton-Van Buren-Kalamazoo- Including the cities of Mount Pleasant, Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, South Haven, and Kalamazoo 336 AM EST Tue Feb 16 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON EST TODAY... * WHAT...Snow. Additional snow accumulations of up to two inches. * WHERE...Portions of central, south central and southwest Michigan. * WHEN...Until noon EST today. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ www.weather.gov/grr
912 WWUS43 KGRR 161710 WSWGRR URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Rapids MI 1210 PM EST Tue Feb 16 2021 MIZ067-073-074-161815- /O.EXP.KGRR.WS.W.0002.000000T0000Z-210216T1700Z/ Ingham-Calhoun-Jackson- Including the cities of Lansing, Battle Creek, and Jackson 1210 PM EST Tue Feb 16 2021 ...WINTER STORM WARNING HAS EXPIRED... The winter storm has moved out of this area. Snowfall amounts along I-94 from Battle Creek to Jackson were mostly in the 6 to 9 inch range. Most of the snow fell in less than 12 hours. There was significant drifting of the snow and it did result in significant travel delays on area roads this morning. However by noon most major roads are now back to normal speeds. $$ MIZ046-051-052-056>059-064>066-071-072-161815- /O.EXP.KGRR.WW.Y.0010.000000T0000Z-210216T1700Z/ Isabella-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry- Eaton-Van Buren-Kalamazoo- Including the cities of Mount Pleasant, Greenville, Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, Holland, Hastings, Charlotte, South Haven, and Kalamazoo 1210 PM EST Tue Feb 16 2021 ...WINTER WEATHER ADVISORY HAS EXPIRED... The winter storm has moved out of this area. Snowfall amounts near and east of US-131 were in the 6 to 9 inch range. Most of the snow fell in less than 12 hours. There was significant drifting of the snow and it did result in significant travel delays on area roads this morning. However by noon most major roads are now back to normal speeds. $$ www.weather.gov/grr wdm
Nearby
Winter Storm Warnings in Michigan, 2021Every winter storm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.