Alert archive / Michigan / Freeze Warnings in 2018
Freeze Warning 1, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this freeze warning at May 10, 2018, 3:39 AM EDT for 7 counties in Michigan. It took effect at May 11, 2018, 1:00 AM EDT. It was in force for 9 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
- May 10, 2018, 3:39 AM EDT (07:39 UTC)
- In effect from
- May 11, 2018, 1:00 AM EDT
- Expired
- May 11, 2018, 9:34 AM EDT
- In force
- 9 hr
- Issued by
- NWS Grand Rapids, MI
Counties Clare County, MI, Isabella County, MI, Lake County, MI, Mason County, MI, Mecosta County, MI, Newaygo County, MI, Osceola County, MI
The radar
The Grand Rapids radar (KGRR), 103 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
Detroit, MI (KDTX), launched 00:00Z, 7.7 hours before the alert went out and 206 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
- 9 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 1477 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 388 m²/s²
- 0-3 km storm-relative helicity
- 459 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freeze warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Rapids, MI wrote its last area forecast discussion before this freeze warning went out at May 10, 3:29 AM EDT, 10 minutes earlier.
Area forecast discussion, May 10, 3:29 AM EDT, 10 minutes before
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</html>Hazardous weather outlook, May 9, 6:00 PM EDT, 9 hours 39 minutes before
Hazardous Weather Outlook National Weather Service Grand Rapids MI 600 PM EDT Wed May 9 2018 MIZ037>040-043>046-050>052-056>059-064>067-071>074-100745- Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon- Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton- Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- 600 PM EDT Wed May 9 2018 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...Tonight Several areas of thunderstorms are expected to cross through Southwest Michigan this evening into early tonight. It would not be out of the question that the stronger storms would have large hail and damaging winds. An isolated tornado is also possible this evening. The greatest threat for severe storms is mostly near and south of I-96 late this afternoon into early this evening. Most of the thunderstorm this evening are likely to have gusty winds, frequent cloud to ground lighting and brief heavy rainfall. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday A stalled frontal system with waves on it will bring periods of showers and thunderstorms to Southwest Michigan. Rainfall may be locally heavy. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this evening. LMZ844>849-100745- St Joseph to South Haven MI-South Haven to Holland MI- Holland to Grand Haven MI-Grand Haven to Whitehall MI- Whitehall to Pentwater MI-Pentwater to Manistee MI- 600 PM EDT Wed May 9 2018 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...Tonight Thunderstorms are expected this evening. Gusty shifting winds, larger waves and very low visibility in torrential rain should be expected with these storms. Hail is also possible from a few of these storms. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Winds and waves may become hazardous to small craft Thursday. Thunderstorms are possible Friday through Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon into early this evening. wdm
In the hours before
Special weather statement, May 9, 10:14 PM EDT, 5 hours 25 minutes before
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</html>Local storm report, May 9, 10:39 PM EDT, 5 hours before
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</html>The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 8:06 PM EDT | Severe Thunderstorm Warning | GRR | Muskegon, Ottawa | 54 min |
| May 9, 8:31 PM EDT | Severe Thunderstorm Warning | GRR | Kent, Mecosta, Montcalm, Muskegon, Newaygo, Ottawa | 59 min |
| May 9, 8:51 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Barry, Kalamazoo, Van Buren | 39 min |
| May 9, 9:20 PM EDT | Special Weather Statement | GRR | Gratiot, Isabella, Montcalm | 55 min |
| May 9, 9:33 PM EDT | Special Weather Statement | GRR | Barry, Calhoun, Clinton, Eaton, Kalamazoo | 57 min |
| May 9, 10:14 PM EDT | Special Weather Statement | GRR | Clinton, Ingham, Jackson | 91 min |
Nearby
Freeze Warnings in Michigan, 2018Every freeze warning in 2018
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.