Alert archive / Michigan / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 36, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Jun 6, 2008, 10:21 PM EDT for Saint Clair County, Michigan. It was in force for 24 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 6, 2008, 10:21 PM EDT (02:21 UTC)
- Expired
- Jun 6, 2008, 10:45 PM EDT
- In force
- 24 min
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
County Saint Clair County, MI
The radar
The Detroit radar (KDTX), 71 km from the middle of the area, began a volume at 02:24 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 6, 2:18 PM EDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 2.4 hours before the alert went out and 67 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.
- Mixed-layer CAPE
- 1112 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1572 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 153 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 5.1
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 6, 7:50 PM EDT, 2 hours 31 minutes earlier.
Area forecast discussion, Jun 6, 7:50 PM EDT, 2 hours 31 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 245 PM EDT FRI JUN 6 2008 MIZ047>049-053>055-060>063-068>070-075-076-082-083-071845- MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER- ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE- 245 PM EDT FRI JUN 6 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ALL OF SOUTHEAST MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS ARE LIKELY TO DEVELOP ACROSS SOUTHEAST MICHIGAN LATE THIS AFTERNOON AND EVENING AS A COLD FRONT MOVES ACROSS THE STATE. SOME OF THESE THUNDERSTORMS WILL BECOME SEVERE...AND PRODUCE DAMAGING WIND GUSTS TO 70 MPH...HAIL UP TO ONE INCH IN DIAMETER...AND POTENTIALLY...TORNADOES. A TORNADO WATCH IS IN EFFECT FOR ALL OF SOUTHEAST MICHIGAN UNTIL 10 PM THIS EVENING. THUNDERSTORM MOTION WILL BE FROM SOUTHWEST TO NORTHEAST AT 45 TO 50 MPH. HOT AND HUMID CONDITIONS WITH HEAT INDEX VALUES BETWEEN 90 AND 95 DEGREES WILL ALSO CONTINUE THIS AFTERNOON. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE OF THUNDERSTORMS SATURDAY THROUGH TUESDAY AS A SERIES OF UPPER LEVEL DISTURBANCES MOVE THROUGH THE REGION. ALTHOUGH THE CHANCE FOR THUNDERSTORMS IS ON THE LOW SIDE SATURDAY AND SUNDAY...THERE IS A SLIGHT CHANCE OF SEVERE WEATHER IF ANY STORMS DO IN FACT DEVELOP...MOST LIKELY DURING THE LATE AFTERNOON AND EARLY EVENING HOURS. .SPOTTER INFORMATION STATEMENT...DISPATCHERS PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY... SPOTTERS HAVE BEEN ACTIVATED THROUGH 10 PM TONIGHT. LCZ422-423-460-LEZ444-LHZ361>363-421-422-441>443-462>464-071845- 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- 245 PM EDT FRI JUN 6 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE HURON AND LAKE ST CLAIR. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS ARE LIKELY TO DEVELOP ACROSS MICHIGAN TODAY...AND MOVE INTO LAKE HURON...LAKE ST CLAIR...AND WESTERN LAKE ERIE THIS EVENING. SOME OF THESE THUNDERSTORMS WILL BECOME SEVERE...AND PRODUCE DAMAGING WIND GUSTS TO 70 MPH...HAIL UP TO ONE INCH IN DIAMETER...AND POTENTIALLY...TORNADOES AND WATERSPOUTS. A TORNADO WATCH IS IN EFFECT FOR ALL OF SOUTHEAST MICHIGAN UNTIL 10 PM THIS EVENING. THUNDERSTORM MOTION WILL BE FROM SOUTHWEST TO NORTHEAST AT 45 MPH. SMALL CRAFT ADVISORIES REMAIN IN EFFECT FOR ALL NEARSHORE AREAS. PLEASE REFER TO THE LATEST NEARSHORE MARINE FORECASTS /NSHDTX/ FOR DETAILS AND EXPIRATION TIMES. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE OF THUNDERSTORMS SATURDAY THROUGH TUESDAY AS A SERIES OF UPPER LEVEL DISTURBANCES MOVE THROUGH THE REGION. .SPOTTER INFORMATION STATEMENT...DISPATCHERS PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY... SPOTTERS HAVE BEEN ACTIVATED THROUGH 10 PM TONIGHT. HLO/SF 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 6, 9:03 PM EDT, 1 hour 18 minutes before
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</html>Special weather statement, Jun 6, 9:12 PM EDT, 1 hour 9 minutes before
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</html>Local storm report, Jun 6, 9:23 PM EDT, 58 minutes before
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</html>Special weather statement, Jun 6, 9:25 PM EDT, 56 minutes before
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</html>Special weather statement, Jun 6, 10:05 PM EDT, 16 minutes before
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</html>Local storm report, Jun 6, 10:21 PM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 8:20 PM EDT | Special Marine Warning | DTX | 33 min | |
| Jun 6, 9:58 PM EDT | Severe Thunderstorm Warning | DTX | Wayne | 29 min |
| Jun 6, 10:08 PM EDT | Special Marine Warning | DTX | 47 min | |
| Jun 6, 10:10 PM EDT | Special Marine Warning | DTX | 35 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.