Alert archive / Michigan / Winter Storm Warnings in 2018
Winter Storm Warning 8, NWS Detroit, MI
NWS Detroit, MI issued this winter storm warning at Nov 25, 2018, 2:55 PM EST for 7 counties in Michigan. It took effect at Nov 26, 2018, 1:00 AM EST. It was in force for 12 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
- Nov 25, 2018, 2:55 PM EST (19:55 UTC)
- In effect from
- Nov 26, 2018, 1:00 AM EST
- Expired
- Nov 26, 2018, 1:16 PM EST
- In force
- 12 hr
- Issued by
- NWS Detroit, MI
Counties Genesee County, MI, Huron County, MI, Lapeer County, MI, Saginaw County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI
The radar
The Detroit radar (KDTX), 69 km from the middle of the area, began a volume at 19:53 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
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.9 hours before the alert went out and 387 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
- 687 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 25, 2:50 AM EST | Gale Warning | DTX | 67 hr | |
| Nov 25, 2:50 AM EST | Small Craft Advisory | DTX | 4 days | |
| Nov 25, 3:24 AM EST | Winter Weather Advisory | DTX | Bay, Genesee, Huron, Lapeer, Livingston, Macomb and 8 more | 34 hr |
Nearby
Winter Storm Warnings in Michigan, 2018Every winter storm 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.