Alert archive / Michigan / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 116, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Jun 23, 2004, 10:10 PM EDT for Lapeer County, Michigan. It was in force for 80 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, 2004, 10:10 PM EDT (02:10 UTC)
- Expired
- Jun 23, 2004, 11:30 PM EDT
- In force
- 80 min
- Issued by
- NWS Detroit, MI
- Area
- Counties, with a storm outline in the text
County Lapeer County, MI
The radar
The Detroit radar (KDTX), 48 km from the middle of the area, began a volume at 02:13 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 23, 6:00 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 2.2 hours before the alert went out and 44 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
- 742 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1134 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.4
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, 9:45 PM EDT, 25 minutes earlier.
Area forecast discussion, Jun 23, 9:45 PM EDT, 25 minutes before
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</html>Hazardous weather outlook, Jun 23, 9:00 PM EDT, 1 hour 10 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 900 PM EDT WED JUN 23 2004 MIZ047>049-053-054-241000- BAY-HURON-MIDLAND-SAGINAW-TUSCOLA- 900 PM EDT WED JUN 23 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR TRI-CITIES AND NORTHERN THUMB REGION. .DAY ONE...TONIGHT ...SEVERE THUNDERSTORM WATCH 515 IN EFFECT UNTIL MIDNIGHT TONIGHT... NUMEROUS THUNDERSTORMS WILL AFFECT THE TRI CITIES AND THUMB TONIGHT. SOME OF THESE STORMS COULD BE SEVERE WITH DAMAGING WINDS TO 70 MPH THE MAIN HAZARD...BUT HAIL AROUND 1 INCH IS ALSO POSSIBLE. STORM MOVEMENT WILL BE TO THE EAST AROUND 40 MPH. A COLD FRONT WILL MOVE FROM NORTHERN LOWER MICHIGAN TO THE SAGINAW VALLEY TONIGHT. THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER THE SAGINAW VALLEY AND THUMB REGIONS THROUGH MIDNIGHT. A SECOND CLUSTER OF STORMS OVER WISCONSIN WILL MOVE EASTWARD WITH A SECONDARY COLD FRONT AND COULD AFFECT THE TRI CITIES AND THUMB AFTER MIDNIGHT. .DAY TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A CHANCE OF THUNDERSTORMS THURSDAY. .SPOTTER INFORMATION STATEMENT... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGER IMMEDIATELY. SPOTTER ACTIVATION HAS TAKEN PLACE FOR SEVERE THUNDERSTORM WATCH 515. MIZ055-060>063-068>070-241000- GENESEE-LAPEER-LIVINGSTON-MACOMB-OAKLAND-SANILAC-SHIAWASSEE- ST. CLAIR- 900 PM EDT WED JUN 23 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE I 69 AND M 59 CORRIDORS. .DAY ONE...TONIGHT ...SEVERE THUNDERSTORM WATCH 515 IN EFFECT UNTIL MIDNIGHT TONIGHT... NUMEROUS THUNDERSTORMS WILL MOVE INTO THE AREA DURING THE LATE EVENING. SOME OF THESE STORMS COULD BE SEVERE WITH DAMAGING WINDS TO 70 MPH THE MAIN HAZARD...BUT HAIL AROUND 1 INCH IS ALSO POSSIBLE. THE BEST CHANCE OF SEVERE WEATHER WILL BE FROM 9 PM TO MIDNIGHT AS STORMS MOVE EAST AROUND 40 MPH. A COLD FRONT WILL MOVE FROM NORTHERN LOWER MICHIGAN TO THE SAGINAW VALLEY TONIGHT. THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER THE SAGINAW VALLEY AND THUMB REGIONS THIS EVENING THEN DROP SOUTH INTO THE I 69 AND M 59 CORRIDORS OVERNIGHT. .DAY TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGER IMMEDIATELY. SPOTTER ACTIVATION HAS TAKEN PLACE FOR SEVERE THUNDERSTORM WATCH 515. MIZ075-076-082-083-241000- LENAWEE-MONROE-WASHTENAW-WAYNE- 900 PM EDT WED JUN 23 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR LOCATIONS SOUTH OF M-59. .DAY ONE...TONIGHT ...SEVERE THUNDERSTORM WATCH 515 IN EFFECT UNTIL MIDNIGHT TONIGHT... THUNDERSTORMS WILL BECOME NUMEROUS DURING THE LATE EVENING HOURS. SOME OF THESE STORMS COULD BE SEVERE WITH DAMAGING WINDS TO 70 MPH THE MAIN HAZARD...BUT HAIL AROUND 1 INCH IS ALSO POSSIBLE. THE BEST CHANCE OF SEVERE WEATHER WILL BE FROM 10 PM TO MIDNIGHT AS STORMS MOVE EAST AROUND 40 MPH. A COLD FRONT WILL MOVE FROM NORTHERN LOWER MICHIGAN TO THE SAGINAW VALLEY TONIGHT. SCATTERED TO NUMEROUS THUNDERSTORMS WILL CONTINUE TO DEVELOP ALONG THIS FRONT...AND MOVE ALONG AND SOUTH OF INTERSTATE 96 AFTER 10 PM. .DAY TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGER IMMEDIATELY. SPOTTER ACTIVATION HAS TAKEN PLACE FOR SEVERE THUNDERSTORM WATCH 515. BT
In the hours before
Local storm report, Jun 23, 9:24 PM EDT, 46 minutes before
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</html>Local storm report, Jun 23, 9:37 PM EDT, 33 minutes before
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</html>Local storm report, Jun 23, 9:51 PM EDT, 19 minutes before
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</html>Local storm report, Jun 23, 10:08 PM EDT, 2 minutes before
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</html>Local storm report, Jun 23, 10:10 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 23, 8:47 PM EDT | Severe Thunderstorm Warning | DTX | Saginaw | 73 min |
| Jun 23, 9:03 PM EDT | Severe Thunderstorm Warning | DTX | Shiawassee | 57 min |
| Jun 23, 9:07 PM EDT | Tornado Warning | DTX | Saginaw | 53 min |
| Jun 23, 9:32 PM EDT | Severe Thunderstorm Warning | DTX | Genesee | 58 min |
| Jun 24, 1:04 AM EDT | Severe Thunderstorm Warning | DTX | Bay | 41 min |
| Jun 24, 1:06 AM EDT | Special Marine Warning | DTX | 84 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2004Every severe thunderstorm warning in 2004
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.