Alert archive / Michigan / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 76, NWS Detroit, MI

June 22, 2008Shiawassee County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Jun 22, 2008, 2:06 PM EDT for Shiawassee County, Michigan. It was in force for 54 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 22, 2008, 2:06 PM EDT (18:06 UTC)
Expired
Jun 22, 2008, 3:00 PM EDT
In force
54 min
Issued by
NWS Detroit, MI
Area
Storm-based polygon

County Shiawassee County, MI

The radar

The Detroit radar (KDTX), 62 km from the middle of the area, began a volume at 18:06 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, 6.1 hours before the alert went out and 64 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 2008-06-22Temperature 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 2008-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.193958Sfc1 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
1561 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
35 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 22, 1:49 PM EDT, 17 minutes earlier.

Area forecast discussion, Jun 22, 1:49 PM EDT, 17 minutes before
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Hazardous weather outlook, Jun 22, 3:46 AM EDT, 10 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
346 AM EDT SUN JUN 22 2008

MIZ047>049-053>055-060>063-068>070-075-076-082-083-230800-
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER-
ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-
346 AM EDT SUN JUN 22 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING.
THERE IS A SLIGHT CHANCE OF SEVERE WEATHER WITH THESE STORMS. THE
STRONGEST STORMS WILL BE CAPABLE OF PRODUCING HAIL TO ONE INCH IN
DIAMETER. A FEW STORMS WILL ALSO BE CAPABLE OF PRODUCING WIND
GUSTS TO 60 MPH. STORMS WILL GENERALLY MOVE TO THE EAST AT 15 MPH.
THE BEST CHANCES FOR THUNDERSTORMS WILL BE BETWEEN 2 PM AND 7 PM.

A SURFACE TROUGH AND COLD AIR ALOFT WILL TRIGGER SCATTERED
AFTERNOON AND EVENING THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A CHANCE OF THUNDERSTORMS ON MONDAY AS AN UPPER LEVEL LOW
PRESSURE SYSTEM LINGERS OVER THE AREA.

THE CHANCE OF THUNDERSTORMS RETURNS WEDNESDAY AND CONTINUES THROUGH
FRIDAY AS A WARM...HUMID AND UNSTABLE AIRMASS LIFTS INTO THE GREAT
LAKES.

.SPOTTER INFORMATION STATEMENT...
DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY.
THERE IS A CHANCE FOR SPOTTER ACTIVATION THIS AFTERNOON AND
EVENING.

LCZ422-423-460-LEZ444-LHZ361>363-421-422-441>443-462>464-230800-
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-
346 AM EDT SUN JUN 22 2008

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING.
THERE IS A SLIGHT CHANCE OF SEVERE WEATHER WITH THESE STORMS. THE
STRONGEST STORMS WILL BE CAPABLE OF PRODUCING HAIL TO ONE INCH IN
DIAMETER. A FEW STORMS WILL ALSO BE CAPABLE OF PRODUCING WIND
GUSTS TO 60 MPH. STORMS WILL GENERALLY MOVE TO THE EAST AT 15 MPH.
THE BEST CHANCES FOR THUNDERSTORMS WILL BE BETWEEN 2 PM AND 7 PM.

A SURFACE TROUGH AND COLD AIR ALOFT WILL TRIGGER SCATTERED
AFTERNOON AND EVENING THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A CHANCE OF THUNDERSTORMS ON MONDAY AS AN UPPER LEVEL LOW
PRESSURE SYSTEM LINGERS OVER THE AREA.

THE CHANCE OF THUNDERSTORMS RETURNS WEDNESDAY AND CONTINUES THROUGH
FRIDAY AS A WARM...HUMID AND UNSTABLE AIRMASS LIFTS INTO THE GREAT
LAKES.

.SPOTTER INFORMATION STATEMENT...
DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY.
THERE IS A CHANCE FOR SPOTTER ACTIVATION THIS AFTERNOON AND
EVENING.

SC

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, 1:36 PM EDT, 30 minutes before
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Local storm report, Jun 22, 2:02 PM EDT, 4 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 2:00 PM EDTSevere Thunderstorm WarningDTXMidland60 min
Jun 22, 2:16 PM EDTSevere Thunderstorm WarningDTXBay59 min
Jun 22, 2:35 PM EDTSevere Thunderstorm WarningDTXSaint Clair55 min
Jun 22, 2:48 PM EDTSpecial Marine WarningDTX117 min
Jun 22, 2:54 PM EDTSevere Thunderstorm WarningDTXGenesee58 min
Jun 22, 3:20 PM EDTSevere Thunderstorm WarningDTXLapeer, Tuscola85 min
Jun 22, 3:23 PM EDTSevere Thunderstorm WarningDTXHuron, Tuscola97 min
Jun 22, 4:27 PM EDTSpecial Marine WarningDTX65 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2008Every severe thunderstorm warning in 2008

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.