Alert archive / Michigan / Red Flag Warnings in 2023

Red Flag Warning 11, NWS Grand Rapids, MI

June 10, 20236 counties in Michigan

NWS Grand Rapids, MI issued this red flag warning at Jun 10, 2023, 3:52 AM EDT for 6 counties in Michigan. It took effect at Jun 10, 2023, 10:00 AM EDT. It was in force for 10 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: Jun 10, 2023, 3:52 AM EDT (07:52 UTC)
In effect from: Jun 10, 2023, 10:00 AM EDT
Expired: Jun 10, 2023, 7:40 PM EDT
In force: 10 hr
Issued by: NWS Grand Rapids, MI

Counties Clare County, MI, Lake County, MI, Mason County, MI, Newaygo County, MI, Oceana County, MI, Osceola County, MI

The radar

The Grand Rapids radar (KGRR), 109 km from the middle of the area, began a volume at 07:53 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 7.9 hours before the alert went out and 199 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3049 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this red flag 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 red flag warning went out at Jun 10, 3:41 AM EDT, 11 minutes earlier.

Area forecast discussion, Jun 10, 3:41 AM EDT, 11 minutes before

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Hazardous weather outlook, Jun 9, 4:28 AM EDT, 23 hours 24 minutes before

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The office that day

Everything else NWS Grand Rapids, MI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 2:39 PM EDT	Small Craft Advisory	GRR		49 hr
Jun 10, 2:40 PM EDT	Beach Hazards Statement	GRR	Allegan, Mason, Muskegon, Oceana, Ottawa, Van Buren	49 hr

Nearby

Red Flag Warnings in Michigan, 2023 Every red flag warning in 2023

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.