Alert archive / Michigan / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 8, NWS Detroit, MI

May 5, 2010Wayne County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at May 5, 2010, 3:44 PM EDT for Wayne County, Michigan. It was in force for 28 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
May 5, 2010, 3:44 PM EDT (19:44 UTC)
Expired
May 5, 2010, 4:12 PM EDT
In force
28 min
Issued by
NWS Detroit, MI
Area
Storm-based polygon
Hail
1.0 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 19:47 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, 7.7 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-pSkew-T log-p diagram, Detroit, MI at 12:00Z on 2010-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2010-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 185 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1931 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
185 m²/s²
0-3 km storm-relative helicity
126 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 May 5, 3:30 PM EDT, 14 minutes earlier.

Area forecast discussion, May 5, 3:30 PM EDT, 14 minutes before
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Hazardous weather outlook, May 5, 4:40 AM EDT, 11 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
440 AM EDT WED MAY 5 2010

MIZ063-069-070-075-076-082-083-060845-
ST. CLAIR-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-
440 AM EDT WED MAY 5 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MICHIGAN ALONG AND SOUTH OF A LINE FROM ANN ARBOR TO PORT HURON.

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE WEATHER WITH THUNDERSTORMS THAT
DEVELOP ALONG A COLD FRONT THIS AFTERNOON. THUNDERSTORMS WILL BE
MOST LIKELY BETWEEN 2 PM AND 7 PM WITH THE MAIN THREATS BEING WIND
GUSTS TO 65 MPH AND HAIL TO ONE HALF INCH IN DIAMETER.
THUNDERSTORM MOTION WILL BE TO THE EAST NORTHEAST AT 35 MPH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE CHANCE OF THUNDERSTORMS RETURNS ON FRIDAY AS ANOTHER STRONG
LOW PRESSURE SYSTEM TRACKS THROUGH THE OHIO VALLEY. THERE IS A
SLIGHT CHANCE OF SEVERE WEATHER WITH THUNDERSTORMS FROM THE METRO
DETROIT AREA SOUTH TO THE OHIO BORDER.

.SPOTTER INFORMATION STATEMENT...

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

MIZ047>049-053>055-060>062-068-060845-
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER-
LIVINGSTON-
440 AM EDT WED MAY 5 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MICHIGAN ALONG AND NORTH OF A LINE FROM HOWELL TO SANDUSKY.

.DAY ONE...TODAY AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS FOR LOCATIONS SOUTH AND EAST OF
THE SAGINAW VALLEY TODAY. SEVERE WEATHER IS NOT EXPECTED ALTHOUGH
WIND GUSTS TO 45 MPH AND PEA SIZE HAIL ARE POSSIBLE THIS
AFTERNOON. THUNDERSTORM MOTION WILL BE TO THE EAST NORTHEAST AT 35
MPH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THERE IS A CHANCE OF THUNDERSTORMS ON FRIDAY AS ANOTHER STRONG LOW
PRESSURE SYSTEM TRACKS THROUGH THE OHIO VALLEY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

LCZ422-423-460-LEZ444-LHZ361>363-421-422-441>443-462>464-060845-
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-
440 AM EDT WED MAY 5 2010

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

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE WEATHER WITH THUNDERSTORMS THAT
DEVELOP ALONG A COLD FRONT THIS AFTERNOON FROM EXTREME SOUTHERN
LAKE HURON TO LAKE ERIE. THUNDERSTORMS WILL BE MOST LIKELY
BETWEEN 2 PM AND 7 PM WITH THE MAIN THREATS BEING WIND GUSTS TO 65
MPH AND HAIL TO ONE HALF INCH IN DIAMETER. THUNDERSTORM MOTION
WILL BE TO THE EAST NORTHEAST AT 35 MPH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE CHANCE OF THUNDERSTORMS RETURNS ON FRIDAY AS ANOTHER STRONG
LOW PRESSURE SYSTEM TRACKS THROUGH THE OHIO VALLEY. THERE IS A
SLIGHT CHANCE OF SEVERE WEATHER WITH THUNDERSTORMS FROM LAKE ST
CLAIR SOUTH TO LAKE ERIE.

.SPOTTER INFORMATION STATEMENT...

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

KEC

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, May 5, 3:11 PM EDT, 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
311 PM EDT WED MAY 05 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0305 PM     HAIL             MARYSVILLE              42.91N 82.48W
05/05/2010  M0.50 INCH       ST. CLAIR          MI   TRAINED SPOTTER

            INTERSECTION OF RANGE RD AND RAVENSWOOD RD

&&

ADODSON
Local storm report, May 5, 3:20 PM EDT, 24 minutes before
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Special weather statement, May 5, 3:22 PM EDT, 22 minutes before
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Special weather statement, May 5, 3:27 PM EDT, 17 minutes before
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Local storm report, May 5, 3:31 PM EDT, 13 minutes before
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Special weather statement, May 5, 3:34 PM EDT, 10 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 3:16 PM EDTSpecial Marine WarningDTX55 min
May 5, 3:44 PM EDTSpecial Marine WarningDTX91 min
May 5, 5:49 PM EDTSpecial Marine WarningDTX20 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2010Every severe thunderstorm warning in 2010

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.