Alert archive / Michigan / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 35, NWS Detroit, MI

June 23, 2015Wayne County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Jun 23, 2015, 1:44 AM EDT for Wayne County, Michigan. It was in force for 48 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 23, 2015, 1:44 AM EDT (05:44 UTC)
Expired: Jun 23, 2015, 2:32 AM EDT
In force: 48 min
Issued by: NWS Detroit, MI
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Wayne County, MI

The radar

The Detroit radar (KDTX), 49 km from the middle of the area, began a volume at 05:44 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
Jun 22, 9:17 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 5.7 hours before the alert went out and 50 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: 2155 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 783 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 461 m²/s²
0-3 km storm-relative helicity: 798 m²/s²
Significant tornado parameter: 7.6
Supercell composite: 31.2

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 23, 1:11 AM EDT, 33 minutes earlier.

Area forecast discussion, Jun 23, 1:11 AM EDT, 33 minutes before

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Hazardous weather outlook, Jun 22, 6:25 PM EDT, 7 hours 19 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
625 PM EDT MON JUN 22 2015

MIZ047>049-053>055-060>063-068>070-075-076-082-083-230730-
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER-
ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-
625 PM EDT MON JUN 22 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST MICHIGAN.

.DAY ONE... TONIGHT

AFTER A BREAK IN THUNDERSTORM ACTIVITY DURING THE EARLY EVENING...A
SECOND ROUND OF STORMS IS EXPECTED TO DEVELOP BY LATE EVENING INTO
THE OVERNIGHT HOURS. THERE REMAINS POTENTIAL FOR SIGNIFICANT SEVERE
WEATHER AS STORMS DEVELOP ALONG AND AHEAD OF A COLD FRONT OVER THE
WESTERN GREAT LAKES. THIS FRONT WILL SWEEP THROUGH SOUTHEAST
MICHIGAN DURING THE NIGHT AND EXIT BY SUNRISE TUESDAY. DAMAGING WIND
GUSTS AND LARGE HAIL REMAIN THE PRIMARY HAZARDS BUT TORNADOES AND
FLOODING ARE ALSO STILL POSSIBLE. INDIVIDUAL STORM MOTION WILL BE
WEST TO EAST AT 45 MPH AND PROPAGATION OF LINES OF STORMS COULD
INCREASE IN EXCESS OF 50 MPH.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY AND THURSDAY.

.SPOTTER INFORMATION STATEMENT...

DISPATCHERS PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. SPOTTER
ACTIVATION MAY BE NEEDED AGAIN TONIGHT.

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-230730-
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-
625 PM EDT MON JUN 22 2015

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

.DAY ONE... TONIGHT

AFTER A BREAK IN THUNDERSTORM ACTIVITY DURING THE EARLY EVENING...A
SECOND ROUND OF STORMS IS EXPECTED TO DEVELOP BY LATE EVENING INTO
THE OVERNIGHT HOURS. THERE REMAINS POTENTIAL FOR SIGNIFICANT SEVERE
WEATHER...MAINLY SOUTH OF PRESQUE ISLE...AS STORMS DEVELOP ALONG AND
AHEAD OF A COLD FRONT OVER THE WESTERN GREAT LAKES. THIS FRONT WILL
SWEEP THROUGH LAKE HURON AND LOWER MICHIGAN DURING THE NIGHT AND
EXIT BY SUNRISE TUESDAY. DAMAGING WIND GUSTS AND LARGE HAIL REMAIN
THE PRIMARY HAZARDS BUT TORNADOES ARE ALSO STILL POSSIBLE.
INDIVIDUAL STORM MOTION WILL BE WEST TO EAST AT 35 KNOTS AND
PROPAGATION OF LINES OF STORMS COULD INCREASE IN EXCESS OF 45
KNOTS.

A SMALL CRAFT ADVISORY REMAINS IN EFFECT FOR ALL MARINE AREAS
TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A SMALL CRAFT ADVISORY IS IN EFFECT TUESDAY MORNING FOR ALL MARINE
AREAS.

THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY AND THURSDAY.

.SPOTTER INFORMATION STATEMENT...

DISPATCHERS PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY.
SPOTTER ACTIVATION MAY BE NEEDED AGAIN TONIGHT.

BT

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

In the hours before

Special weather statement, Jun 22, 11:49 PM EDT, 1 hour 55 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1149 PM EDT MON JUN 22 2015

MIZ069-230415-
OAKLAND-
1149 PM EDT MON JUN 22 2015

...A STRONG THUNDERSTORM WILL AFFECT OAKLAND COUNTY...

AT 1149 PM EDT...A STRONG THUNDERSTORM WAS NEAR ORTONVILLE...OR NEAR
OXFORD...MOVING EAST AT 35 MPH.

WINDS IN EXCESS OF 30 MPH ARE POSSIBLE WITH THIS STORM.

THIS STORM WILL BE NEAR...
  OXFORD AROUND 1155 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE DAVISBURG...ROSE
CENTER...WATERFORD...WALLED LAKE...LAKEVILLE...KEEGO HARBOR...
WOLVERINE LAKE...LAKE ORION...CLAWSON AND COMMERCE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM EDT FOR SOUTHEASTERN
MICHIGAN.

LAT...LON 4243 8366 4274 8369 4287 8369 4289 8310
      4249 8309
TIME...MOT...LOC 0349Z 276DEG 32KT 4284 8337

BT

Special weather statement, Jun 23, 12:20 AM EDT, 1 hour 24 minutes before

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Special weather statement, Jun 23, 12:39 AM EDT, 1 hour 5 minutes before

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Special weather statement, Jun 23, 1:08 AM EDT, 36 minutes before

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Special weather statement, Jun 23, 1:34 AM EDT, 10 minutes before

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Local storm report, Jun 23, 1:38 AM EDT, 6 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 22, 8:21 PM EDT	Severe Thunderstorm Warning	DTX	Sanilac	14 min
Jun 22, 8:25 PM EDT	Special Marine Warning	DTX		65 min
Jun 22, 8:45 PM EDT	Special Weather Statement	DTX	Bay, Saginaw, Tuscola	45 min
Jun 22, 9:00 PM EDT	Special Marine Warning	DTX		45 min
Jun 22, 9:01 PM EDT	Severe Thunderstorm Warning	DTX	Bay, Saginaw	59 min
Jun 22, 9:06 PM EDT	Severe Thunderstorm Warning	DTX	Huron, Tuscola	69 min
Jun 22, 9:44 PM EDT	Tornado Warning	DTX	Saginaw, Tuscola	46 min
Jun 22, 9:53 PM EDT	Severe Thunderstorm Warning	DTX	Sanilac	68 min
Jun 22, 10:16 PM EDT	Tornado Warning	DTX	Sanilac	44 min
Jun 22, 10:30 PM EDT	Tornado Warning	DTX	Lapeer, Tuscola	29 min
Jun 22, 10:34 PM EDT	Tornado Warning	DTX	Shiawassee	18 min
Jun 22, 10:36 PM EDT	Severe Thunderstorm Warning	DTX	Genesee	54 min
Jun 22, 10:38 PM EDT	Special Marine Warning	DTX		97 min
Jun 22, 10:57 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer	63 min
Jun 22, 11:12 PM EDT	Special Weather Statement	DTX	Livingston	48 min
Jun 22, 11:15 PM EDT	Severe Thunderstorm Warning	DTX	Saint Clair	75 min
Jun 22, 11:40 PM EDT	Special Marine Warning	DTX		65 min
Jun 22, 11:49 PM EDT	Special Weather Statement	DTX	Oakland	26 min
Jun 22, 11:54 PM EDT	Severe Thunderstorm Warning	DTX	Shiawassee	44 min
Jun 23, 12:20 AM EDT	Special Weather Statement	DTX	Genesee, Oakland	25 min
Jun 23, 12:29 AM EDT	Severe Thunderstorm Warning	DTX	Washtenaw	76 min
Jun 23, 12:39 AM EDT	Special Weather Statement	DTX	Livingston	51 min
Jun 23, 1:08 AM EDT	Special Weather Statement	DTX	Lapeer, Saint Clair	37 min
Jun 23, 1:11 AM EDT	Areal Flood Advisory	DTX	Washtenaw	3 hr
Jun 23, 1:32 AM EDT	Tornado Warning	DTX	Washtenaw	29 min
Jun 23, 1:34 AM EDT	Special Weather Statement	DTX	Macomb, Oakland, Wayne	26 min
Jun 23, 1:56 AM EDT	Special Marine Warning	DTX		94 min
Jun 23, 2:02 AM EDT	Severe Thunderstorm Warning	DTX	Lenawee, Monroe	73 min
Jun 23, 10:12 AM EDT	Small Craft Advisory	DTX		6 hr

Nearby

Severe Thunderstorm Warnings in Michigan, 2015 Every severe thunderstorm warning in 2015

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.