Alert archive / Michigan / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 19, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at May 15, 2007, 4:56 PM EDT for Sanilac County, Michigan. It was in force for 39 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 15, 2007, 4:56 PM EDT (20:56 UTC)
- Expired
- May 15, 2007, 5:35 PM EDT
- In force
- 39 min
- Issued by
- NWS Detroit, MI
- Area
- Counties, with a storm outline in the text
County Sanilac County, MI
The radar
The Detroit radar (KDTX), 106 km from the middle of the area, began a volume at 20:59 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 |
|---|---|---|---|
| May 15, 1:53 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 8.9 hours before the alert went out and 103 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1711 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 15, 4:43 PM EDT, 13 minutes earlier.
Area forecast discussion, May 15, 4:43 PM EDT, 13 minutes before
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</html>Hazardous weather outlook, May 15, 4:42 AM EDT, 12 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 442 AM EDT TUE MAY 15 2007 MIZ047>049-053>055-060>062-160845- MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER- 442 AM EDT TUE MAY 15 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE SAGINAW VALLEY DOWN TO FLINT AND OWOSSO AND FOR THE THUMB. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT CHANCE OF SEVERE WEATHER WITH WIDESPREAD THUNDERSTORMS TODAY. THUNDERSTORMS WILL AFFECT THE REGION EARLY THIS MORNING...THEN AGAIN DURING THE AFTERNOON HOURS. ISOLATED SEVERE WEATHER IS POSSIBLE THIS MORNING. HOWEVER...THE GREATEST POTENTIAL FOR SEVERE WEATHER WILL OCCUR BETWEEN 2 PM AND 6 PM THIS AFTERNOON. THE STRONGEST THUNDERSTORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 60 MPH AND HAIL TO ONE INCH IN DIAMETER. FREQUENT LIGHTNING AND HEAVY RAINFALL WILL ALSO ACCOMPANY THE THUNDERSTORMS. SOME OF THE RAINFALL MAY PRODUCE LOCALIZED FLOODING IN MORE URBANIZED AREAS. THUNDERSTORMS THIS MORNING WILL MOVE EAST AT 50 MPH. THUNDERSTORMS THAT AFFECT THE REGION THIS AFTERNOON WILL MOVE EAST AT 40 MPH. A COLD FRONT WILL DROP SOUTH ACROSS THE REGION TODAY. THIS FRONT WILL TRIGGER WIDESPREAD THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON. MIZ063-068>070-075-076-082-083-160845- ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE- 442 AM EDT TUE MAY 15 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR LOCATIONS ALONG AND SOUTH OF A LINE FROM PORT HURON TO HOWELL...INCLUDING THE ENTIRE DETROIT METROPOLITAN AREA. .DAY ONE...TODAY AND TONIGHT WIDESPREAD THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING. THERE IS A SLIGHT CHANCE OF SEVERE WEATHER WITH THESE THUNDERSTORMS. THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 70 MPH AND HAIL TO ONE INCH IN DIAMETER. VERY HEAVY RAINFALL AND FREQUENT LIGHTNING ARE ALSO POSSIBLE WITH THESE STORMS. THE GREATEST SEVERE WEATHER POTENTIAL WILL OCCUR BETWEEN 3 PM AND 9 PM. THERE IS ALSO A POTENTIAL FOR FLASH FLOODING...MAINLY WITH THE STORMS DURING THE EVENING. THE POTENTIAL FOR FLOODING WILL BE GREATEST IN MORE URBANIZED AREAS. THUNDERSTORMS TODAY WILL GENERALLY MOVE EAST AT 40 MPH. A COLD FRONT WILL DROP SOUTH ACROSS THE REGION TODAY. THIS FRONT WILL TRIGGER WIDESPREAD THUNDERSTORMS THIS AFTERNOON AND EVENING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGER IMMEDIATELY. SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING. LCZ422-423-460-LEZ444-LHZ421-422-441>443-462>464-160845- ST. CLAIR RIVER-DETROIT RIVER-LAKE ST. CLAIR- MICHIGAN WATERS OF LAKE ERIE-OUTER SAGINAW BAY-INNER SAGINAW BAY- PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI- PORT SANILAC TO PORT HURON MI- LAKE HURON OFFSHORE BEYOND 5 NM FROM PORT AUSTIN TO HARBOR BEACH MI- LAKE HURON OFFSHORE BEYOND 5 NM FROM HARBOR BEACH TO PORT SANILAC MI- LAKE HURON OFFSHORE BEYOND 5 NM FROM PORT SANILAC TO PORT HURON MI- 442 AM EDT TUE MAY 15 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR LAKE ST CLAIR...THE MICHIGAN WATERS OF LAKE ERIE AND LAKE HURON. .DAY ONE...TODAY AND TONIGHT WIDESPREAD THUNDERSTORMS ARE EXPECTED FROM THIS MORNING THROUGH THE EVENING. THERE IS A SLIGHT CHANCE OF SEVERE WEATHER WITH THESE THUNDERSTORMS. THE THUNDERSTORMS WILL OCCUR FROM THIS MORNING THROUGH LATE AFTERNOON ON LAKE HURON...WHILE LAKE ST CLAIR AND LAKE ERIE WILL SEE THE STORMS FROM MID AFTERNOON THROUGH LATE IN THE EVENING. THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 KNOTS AND HAIL TO ONE INCH IN DIAMETER. VERY HEAVY RAINFALL AND FREQUENT LIGHTNING ARE ALSO POSSIBLE WITH THESE STORMS. THE GREATEST SEVERE WEATHER POTENTIAL WILL OCCUR BETWEEN 2 PM AND 9 PM. THUNDERSTORMS TODAY WILL GENERALLY MOVE EAST AT 40 MPH. A COLD FRONT WILL DROP SOUTH ACROSS THE REGION TODAY. THIS FRONT WILL TRIGGER WIDESPREAD THUNDERSTORMS THIS AFTERNOON AND EVENING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING. CONSIDINE 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 15, 3:54 PM EDT, 1 hour 2 minutes before
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</html>Local storm report, May 15, 4:15 PM EDT, 41 minutes before
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</html>Local storm report, May 15, 4:24 PM EDT, 32 minutes before
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</html>Local storm report, May 15, 4:31 PM EDT, 25 minutes before
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</html>Local storm report, May 15, 4:39 PM EDT, 17 minutes before
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</html>Local storm report, May 15, 4:54 PM EDT, 2 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 |
|---|---|---|---|---|
| May 15, 2:50 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee | 81 min |
| May 15, 3:04 PM EDT | Special Marine Warning | DTX | 86 min | |
| May 15, 3:13 PM EDT | Severe Thunderstorm Warning | DTX | Washtenaw | 63 min |
| May 15, 3:16 PM EDT | Severe Thunderstorm Warning | DTX | Bay | 29 min |
| May 15, 3:29 PM EDT | Severe Thunderstorm Warning | DTX | Wayne | 91 min |
| May 15, 3:32 PM EDT | Special Marine Warning | DTX | 93 min | |
| May 15, 3:52 PM EDT | Severe Thunderstorm Warning | DTX | Huron, Tuscola | 53 min |
| May 15, 3:52 PM EDT | Severe Thunderstorm Warning | DTX | Macomb, Oakland | 83 min |
| May 15, 4:16 PM EDT | Special Marine Warning | DTX | 89 min | |
| May 15, 4:19 PM EDT | Special Marine Warning | DTX | 116 min | |
| May 15, 4:23 PM EDT | Tornado Warning | DTX | Huron | 30 min |
| May 15, 4:26 PM EDT | Special Marine Warning | DTX | 45 min | |
| May 15, 4:35 PM EDT | Severe Thunderstorm Warning | DTX | Saint Clair | 85 min |
| May 15, 5:21 PM EDT | Severe Thunderstorm Warning | DTX | Macomb, Oakland | 39 min |
| May 15, 5:48 PM EDT | Severe Thunderstorm Warning | DTX | Saint Clair | 36 min |
| May 15, 6:11 PM EDT | Special Marine Warning | DTX | 19 min | |
| May 15, 6:20 PM EDT | Severe Thunderstorm Warning | DTX | Livingston, Washtenaw | 71 min |
| May 15, 6:21 PM EDT | Severe Thunderstorm Warning | DTX | Oakland | 84 min |
| May 15, 6:47 PM EDT | Special Marine Warning | DTX | 58 min | |
| May 15, 6:55 PM EDT | Severe Thunderstorm Warning | DTX | Genesee, Shiawassee | 80 min |
| May 15, 7:01 PM EDT | Severe Thunderstorm Warning | DTX | Macomb | 68 min |
| May 15, 7:11 PM EDT | Special Marine Warning | DTX | 35 min | |
| May 15, 7:11 PM EDT | Severe Thunderstorm Warning | DTX | Lapeer | 65 min |
| May 15, 7:38 PM EDT | Severe Thunderstorm Warning | DTX | Saint Clair | 46 min |
| May 15, 7:43 PM EDT | Tornado Warning | DTX | Shiawassee | 24 min |
| May 15, 7:54 PM EDT | Special Marine Warning | DTX | 44 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2007Every severe thunderstorm warning in 2007
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.