Alert archive / Michigan / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 46, NWS Detroit, MI

June 17, 2013Oakland County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Jun 17, 2013, 7:22 PM EDT for Oakland County, Michigan. It was in force for 53 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: Jun 17, 2013, 7:22 PM EDT (23:22 UTC)
Expired: Jun 17, 2013, 8:15 PM EDT
In force: 53 min
Issued by: NWS Detroit, MI
Area: Storm-based polygon
Tornado: Possible
Hail: 1.5 in
Wind: 70.0 mph

County Oakland County, MI

The radar

The Detroit radar (KDTX), 8 km from the middle of the area, began a volume at 23:22 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, 11.4 hours before the alert went out and 8 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: 58 J/kg
Mixed-layer CIN: -151 J/kg
Mixed-layer LCL: 1648 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 77 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Detroit, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 17, 6:58 PM EDT, 24 minutes earlier.

Area forecast discussion, Jun 17, 6:58 PM EDT, 24 minutes before

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Hazardous weather outlook, Jun 17, 3:49 PM EDT, 3 hours 33 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
349 PM EDT MON JUN 17 2013

MIZ053-060>063-068>070-075-076-082-083-180745-
SAGINAW-SHIAWASSEE-GENESEE-LAPEER-ST. CLAIR-LIVINGSTON-OAKLAND-
MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-
349 PM EDT MON JUN 17 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MICHIGAN.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS THIS AFTERNOON
INTO EARLY EVENING AS A COLD FRONT SLOWLY MOVES THROUGH THE AREA.
ANY STORMS THAT DEVELOP WILL BE CAPABLE OF PRODUCING WIND GUSTS
TO 60 MPH AND HAIL UP TO ONE INCH IN DIAMETER. ISOLATED STORMS
THIS AFTERNOON CAPABLE OF WIND GUSTS TO 70 MPH...GOLFBALL SIZED
HAIL AND POSSIBLY AN ISOLATED TORNADO...MAINLY NORTH AND EAST OF
THE I 75 CORRIDOR. STORM MOTION WILL BE NORTHWEST TO SOUTHEAST AT
35 MPH.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A CHANCE OF THUNDERSTORMS THIS WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL MOST LIKELY NOT BE NEEDED DUE TO THE
ISOLATED NATURE OF THE SEVERE WEATHER POTENTIAL.

MIZ047>049-054-055-180745-
MIDLAND-BAY-HURON-TUSCOLA-SANILAC-
349 PM EDT MON JUN 17 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MICHIGAN.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE WILL BE A CHANCE OF THUNDERSTORMS INTO THIS EVENING WITH
ISOLATED SEVERE THUNDERSTORMS POSSIBLY PRODUCING WIND GUSTS TO 60
MPH AND HAIL TO ONE INCH IN DIAMETER. STORMS WILL MOVE TO THE
SOUTHEAST AT 35 MPH AS A COLD FRONT SLOWLY SHIFTS THROUGH THE
REGION.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A CHANCE OF THUNDERSTORMS THIS WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

LCZ422-423-460-LEZ444-LHZ361>363-421-422-441>443-462>464-180745-
ST. CLAIR RIVER-DETROIT RIVER-LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND 5NM
OFF SHORE-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF SHORE-
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER SAGINAW
BAY-INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
349 PM EDT MON JUN 17 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE
HURON AND LAKE ST CLAIR.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS THIS AFTERNOON
INTO EARLY EVENING AS A COLD FRONT SLOWLY MOVES THROUGH THE AREA.
ANY STORMS THAT DEVELOP WILL BE CAPABLE OF PRODUCING WIND GUSTS
TO 60 MPH AND HAIL UP TO ONE INCH IN DIAMETER. STORM MOTION WILL
BE NORTHWEST TO SOUTHEAST AT 35 MPH.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A CHANCE OF THUNDERSTORMS THIS WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

DG

YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE
AT WWW.WEATHER.GOV/DETROIT (ALL LOWER CASE).

In the hours before

Local storm report, Jun 17, 6:40 PM EDT, 42 minutes before

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Local storm report, Jun 17, 6:44 PM EDT, 38 minutes before

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Local storm report, Jun 17, 7:02 PM EDT, 20 minutes before

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Local storm report, Jun 17, 7:09 PM EDT, 13 minutes before

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Local storm report, Jun 17, 7:13 PM EDT, 9 minutes before

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Local storm report, Jun 17, 7:22 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 2:16 PM EDT	Severe Thunderstorm Warning	DTX	Midland	44 min
Jun 17, 2:30 PM EDT	Severe Thunderstorm Warning	DTX	Saginaw	75 min
Jun 17, 2:59 PM EDT	Tornado Warning	DTX	Saginaw	46 min
Jun 17, 3:14 PM EDT	Severe Thunderstorm Warning	DTX	Genesee, Tuscola	76 min
Jun 17, 3:53 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer	67 min
Jun 17, 4:09 PM EDT	Severe Thunderstorm Warning	DTX	Macomb, Oakland	81 min
Jun 17, 4:23 PM EDT	Special Marine Warning	DTX		82 min
Jun 17, 5:00 PM EDT	Severe Thunderstorm Warning	DTX	Saint Clair	45 min
Jun 17, 6:27 PM EDT	Severe Thunderstorm Warning	DTX	Genesee, Saginaw, Tuscola	63 min
Jun 17, 6:39 PM EDT	Severe Thunderstorm Warning	DTX	Huron	66 min
Jun 17, 7:02 PM EDT	Special Marine Warning	DTX		88 min
Jun 17, 7:02 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer	43 min
Jun 17, 7:39 PM EDT	Special Marine Warning	DTX		96 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2013 Every severe thunderstorm warning in 2013

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.