Alert archive / Michigan / Special Weather Statements in 2021

Special Weather Statement, NWS Grand Rapids, MI

June 19, 2021Muskegon County, Michigan

NWS Grand Rapids, MI issued this special weather statement at Jun 19, 2021, 10:59 AM EDT for Muskegon County, Michigan. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 19, 2021, 10:59 AM EDT (14:59 UTC)
Expired: Jun 19, 2021, 12:00 PM EDT
In force: 61 min
Issued by: NWS Grand Rapids, MI

County Muskegon County, MI

The radar

The Grand Rapids radar (KGRR), 62 km from the middle of the area, began a volume at 14:59 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 12:00Z, 3.0 hours before the alert went out and 223 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: 2433 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 19, 9:05 AM EDT, 1 hour 54 minutes earlier.

Area forecast discussion, Jun 19, 9:05 AM EDT, 1 hour 54 minutes before

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Hazardous weather outlook, Jun 19, 8:25 AM EDT, 2 hours 34 minutes before

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In the hours before

Local storm report, Jun 19, 9:13 AM EDT, 1 hour 46 minutes before

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Local storm report, Jun 19, 9:15 AM EDT, 1 hour 44 minutes before

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Local storm report, Jun 19, 9:16 AM EDT, 1 hour 43 minutes before

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Local storm report, Jun 19, 9:17 AM EDT, 1 hour 42 minutes before

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Special weather statement, Jun 19, 10:36 AM EDT, 23 minutes before

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Special weather statement, Jun 19, 10:59 AM EDT, 0 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 19, 8:05 AM EDT	Special Marine Warning	GRR		115 min
Jun 19, 8:13 AM EDT	Special Weather Statement	GRR	Calhoun, Kalamazoo	62 min
Jun 19, 8:18 AM EDT	Special Marine Warning	GRR		117 min
Jun 19, 8:24 AM EDT	Areal Flood Advisory	GRR	Kalamazoo	6 hr
Jun 19, 8:59 AM EDT	Areal Flood Advisory	GRR	Calhoun	2 hr
Jun 19, 9:18 AM EDT	Special Marine Warning	GRR		87 min
Jun 19, 10:36 AM EDT	Special Weather Statement	GRR	Oceana	39 min
Jun 19, 10:46 AM EDT	Special Marine Warning	GRR		29 min
Jun 19, 12:20 PM EDT	Special Marine Warning	GRR		40 min
Jun 19, 1:21 PM EDT	Special Weather Statement	GRR	Van Buren	39 min

Nearby

Special Weather Statements in Michigan, 2021 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.