Alert archive / Michigan / Flash Flood Warnings in 2019

Flash Flood Warning 1, NWS Marquette, MI

September 19, 2019Menominee County, Michigan

NWS Marquette, MI issued this flash flood warning at Sep 19, 2019, 7:38 AM CDT for Menominee County, Michigan. It was in force for 2 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: Sep 19, 2019, 7:38 AM CDT (12:38 UTC)
Expired: Sep 19, 2019, 9:51 AM CDT
In force: 2 hr
Issued by: NWS Marquette, MI
Area: Storm-based polygon
Flood severity: None

County Menominee County, MI

The radar

The Marquette radar (KMQT), 112 km from the middle of the area, began a volume at 12:39 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 12:00Z, 0.6 hours before the alert went out and 125 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: 1176 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -120 m²/s²
0-3 km storm-relative helicity: -54 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Marquette, MI wrote its last area forecast discussion before this flash flood warning went out at Sep 19, 6:24 AM CDT, 1 hour 14 minutes earlier.

Area forecast discussion, Sep 19, 6:24 AM CDT, 1 hour 14 minutes before

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Hazardous weather outlook, Sep 19, 4:22 AM CDT, 3 hours 16 minutes before

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In the hours before

Special weather statement, Sep 19, 2:22 AM CDT, 5 hours 16 minutes before

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Special weather statement, Sep 19, 5:02 AM CDT, 2 hours 36 minutes before

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Local storm report, Sep 19, 5:51 AM CDT, 1 hour 47 minutes before

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Local storm report, Sep 19, 7:34 AM CDT, 4 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 18, 11:41 PM CDT	Special Weather Statement	MQT	Alger, Delta	49 min
Sep 19, 1:28 AM CDT	Special Weather Statement	MQT	Delta, Menominee	47 min
Sep 19, 2:09 AM CDT	Special Marine Warning	MQT		34 min
Sep 19, 2:22 AM CDT	Special Weather Statement	MQT	Delta, Menominee	53 min
Sep 19, 3:33 AM CDT	Beach Hazards Statement	MQT	Schoolcraft	13 hr
Sep 19, 3:46 AM CDT	Areal Flood Advisory	MQT	Delta, Menominee	5 hr

Nearby

Flash Flood Warnings in Michigan, 2019 Every flash flood warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.