Alert archive / Michigan / Frost Advisories in 2019

Frost Advisory 4, NWS Grand Rapids, MI

May 20, 201911 counties in Michigan

NWS Grand Rapids, MI issued this frost advisory at May 20, 2019, 3:42 AM EDT for 11 counties in Michigan. It took effect at May 21, 2019, 2:00 AM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
May 20, 2019, 3:42 AM EDT (07:42 UTC)
In effect from
May 21, 2019, 2:00 AM EDT
Expired
May 21, 2019, 8:00 AM EDT
In force
6 hr
Issued by
NWS Grand Rapids, MI

Counties Clare County, MI, Gratiot County, MI, Isabella County, MI, Lake County, MI, Mason County, MI, Mecosta County, MI, Montcalm County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Osceola County, MI

The radar

The Grand Rapids radar (KGRR), 85 km from the middle of the area, began a volume at 07:41 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 forecasters said that day

The local office's own words before this frost advisory 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 frost advisory went out at May 19, 7:53 PM EDT, 7 hours 49 minutes earlier.

Area forecast discussion, May 19, 7:53 PM EDT, 7 hours 49 minutes before
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Nearby

Frost Advisories in Michigan, 2019Every frost advisory in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.