Alert archive / Michigan / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 57, NWS Marquette, MI

August 9, 2004Alger County, Michigan

NWS Marquette, MI issued this severe thunderstorm warning at Aug 9, 2004, 5:58 PM EDT for Alger County, Michigan. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 9, 2004, 5:58 PM EDT (21:58 UTC)
Expired: Aug 9, 2004, 6:30 PM EDT
In force: 32 min
Issued by: NWS Marquette, MI
Area: Counties, with a storm outline in the text

County Alger County, MI

The radar

The Marquette radar (KMQT), 77 km from the middle of the area, began a volume at 22:01 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 9, 1:05 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.0 hours before the alert went out and 250 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: 1021 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 718 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 9, 4:31 PM EDT, 1 hour 27 minutes earlier.

Area forecast discussion, Aug 9, 4:31 PM EDT, 1 hour 27 minutes before

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Hazardous weather outlook, Aug 9, 11:45 AM EDT, 6 hours 13 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MARQUETTE MI
1145 AM EDT MON AUG 9 2004

MIZ001>007-009>014-084-085-101200-
ALGER-BARAGA-DELTA-DICKINSON-GOGEBIC-IRON-KEWEENAW-LUCE-MARQUETTE-
MENOMINEE-NORTHERN HOUGHTON-NORTHERN SCHOOLCRAFT-ONTONAGON-
SOUTHERN HOUGHTON-SOUTHERN SCHOOLCRAFT-
1145 AM EDT MON AUG 9 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL UPPER
MICHIGAN.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS WILL SPREAD ACROSS WEST AND CENTRAL UPPER
MICHIGAN THIS AFTERNOON INTO THIS EVENING. SOME THUNDERSTORMS COULD
BECOME SEVERE...PRODUCING HAIL UP TO AN INCH IN DIAMETER AND A
POSSIBLE BRIEF TORNADO. BRIEF HEAVY RAIN COULD ALSO OCCUR WITH THE
STRONGER STORMS.

ADDITIONAL THUNDERSTORMS...NOT EXPECTED TO BE SEVERE...WILL REMAIN
POSSIBLE THROUGH THE REST OF TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

ADDITIONAL WEATHER INFORMATION MAY BE OBTAINED AT THE FOLLOWING URL:

HTTP://WWW.CRH.NOAA.GOV/MQT (ALL LOWER CASE)

JLA

In the hours before

Local storm report, Aug 9, 4:56 PM EDT, 1 hour 2 minutes before

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Local storm report, Aug 9, 5:10 PM EDT, 48 minutes before

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Special weather statement, Aug 9, 5:12 PM EDT, 46 minutes before

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Local storm report, Aug 9, 5:20 PM EDT, 38 minutes before

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Local storm report, Aug 9, 5:29 PM EDT, 29 minutes before

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Local storm report, Aug 9, 5:57 PM EDT, 1 minute 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
Aug 9, 1:34 PM EDT	Special Marine Warning	MQT		116 min
Aug 9, 1:34 PM EDT	Special Marine Warning	MQT		116 min
Aug 9, 3:31 PM EDT	Special Marine Warning	MQT		89 min
Aug 9, 4:00 PM EDT	Severe Thunderstorm Warning	MQT	Delta, Marquette, Menominee	60 min
Aug 9, 4:25 PM EDT	Special Marine Warning	MQT		2 hr
Aug 9, 4:25 PM EDT	Special Marine Warning	MQT		2 hr
Aug 9, 4:25 PM EDT	Special Marine Warning	MQT		2 hr
Aug 9, 4:50 PM EDT	Special Marine Warning	MQT		115 min
Aug 9, 4:50 PM EDT	Special Marine Warning	MQT		115 min
Aug 9, 4:50 PM EDT	Special Marine Warning	MQT		115 min
Aug 9, 5:01 PM EDT	Severe Thunderstorm Warning	MQT	Delta	59 min
Aug 9, 5:33 PM EDT	Severe Thunderstorm Warning	MQT	Marquette	57 min
Aug 9, 6:29 PM EDT	Special Marine Warning	MQT		91 min
Aug 9, 6:29 PM EDT	Special Marine Warning	MQT		91 min
Aug 9, 6:29 PM EDT	Special Marine Warning	MQT		91 min
Aug 9, 6:57 PM EDT	Severe Thunderstorm Warning	MQT	Menominee	33 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2004 Every severe thunderstorm warning in 2004

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.