Alert archive / Michigan / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 102, NWS Detroit, MI

August 22, 2007Sanilac County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Aug 22, 2007, 11:51 PM EDT for Sanilac 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
Aug 22, 2007, 11:51 PM EDT (03:51 UTC)
Expired
Aug 23, 2007, 12:45 AM EDT
In force
54 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 03:52 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.

IssuedProductOfficeLasted
Aug 22, 8:19 PM EDTSevere Thunderstorm WatchSPC4 hr

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 Aug 22, 7:47 PM EDT, 4 hours 4 minutes earlier.

Area forecast discussion, Aug 22, 7:47 PM EDT, 4 hours 4 minutes before
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Hazardous weather outlook, Aug 22, 11:30 AM EDT, 12 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1130 AM EDT WED AUG 22 2007

MIZ047>049-053>055-060>063-068>070-075-076-082-083-230900-
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER-
ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-
1130 AM EDT WED AUG 22 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ALL OF SOUTHEAST MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS LATE TODAY AND TONIGHT OVER ALL
OF SOUTHEAST LOWER MICHIGAN AS A WAVE OF LOW PRESSURE TRACKS NORTH
OF THE AREA. IF THUNDERSTORMS DEVELOP...THERE IS A SLIGHT CHANCE
THEY WILL BE SEVERE...CAPABLE OF PRODUCING DAMAGING WIND GUSTS
TO 60 MPH AND LARGE HAIL. THUNDERSTORM MOTION WILL BE SOUTHEAST AT
20 MPH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

AN EXTENDED PERIOD OF ACTIVE WEATHER WILL CONTINUE OVER SOUTHEAST
MICHIGAN THROUGH SATURDAY EVENING AS A STEADY PROGRESSION OF LOW
PRESSURE SYSTEMS AND ASSOCIATED FRONTAL BOUNDARIES MOVE ACROSS THE
GREAT LAKES.

THUNDERSTORMS ARE POSSIBLE THURSDAY THROUGH SATURDAY EVENING. THERE
IS A SLIGHT CHANCE OF SEVERE WEATHER FROM THURSDAY MORNING THROUGH
FRIDAY EVENING.

.SPOTTER INFORMATION STATEMENT...

DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGER IMMEDIATELY.
SPOTTER ACTIVATION MAY BE NEEDED LATE TODAY AND TONIGHT.

LCZ422-423-460-LEZ444-LHZ421-422-441>443-462>464-230900-
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-
1130 AM EDT WED AUG 22 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR LAKE ST CLAIR...THE MICHIGAN
WATERS OF LAKE ERIE AND LAKE HURON.

.DAY ONE...TODAY AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS...MAINLY TONIGHT OVER ALL MARINE
AREAS. IF THUNDERSTORMS DEVELOP...THERE IS A SLIGHT CHANCE THEY WILL
BE SEVERE...CAPABLE OF PRODUCING WIND GUSTS TO 50 KNOTS AND LARGE
HAIL. THUNDERSTORM MOTION WILL BE SOUTHEAST AT 20 MPH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

AN EXTENDED PERIOD OF ACTIVE WEATHER WILL CONTINUE OVER SOUTHEAST
MICHIGAN THROUGH SATURDAY EVENING AS A STEADY PROGRESSION OF LOW
PRESSURE SYSTEMS AND ASSOCIATED FRONTAL BOUNDARIES MOVE ACROSS THE
GREAT LAKES.

THUNDERSTORMS ARE POSSIBLE THURSDAY THROUGH SATURDAY EVENING. THERE
IS A SLIGHT CHANCE OF SEVERE WEATHER FROM THURSDAY MORNING THROUGH
FRIDAY EVENING.

SMALL CRAFT ADVISORIES MAY BE NEEDED FOR SAGINAW BAY AND THE
NEARSHORE WATERS OF LAKE HURON THURSDAY NIGHT AS A STRONG LOW
PRESSURE SYSTEM MOVES ACROSS THE NORTHERN GREAT LAKES.

.SPOTTER INFORMATION STATEMENT...

DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGER IMMEDIATELY.
SPOTTER ACTIVATION MAY BE NEEDED LATER TODAY.

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, Aug 22, 10:18 PM EDT, 1 hour 33 minutes before
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Local storm report, Aug 22, 11:45 PM EDT, 6 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 9:47 PM EDTSevere Thunderstorm WarningDTXShiawassee58 min
Aug 22, 10:10 PM EDTSevere Thunderstorm WarningDTXSaginaw85 min
Aug 22, 10:12 PM EDTSevere Thunderstorm WarningDTXGenesee63 min
Aug 22, 10:31 PM EDTSevere Thunderstorm WarningDTXShiawassee44 min
Aug 22, 10:55 PM EDTSpecial Marine WarningDTX65 min
Aug 22, 11:14 PM EDTSevere Thunderstorm WarningDTXGenesee31 min
Aug 22, 11:19 PM EDTSevere Thunderstorm WarningDTXBay40 min
Aug 22, 11:31 PM EDTSevere Thunderstorm WarningDTXLapeer33 min
Aug 22, 11:38 PM EDTSpecial Marine WarningDTX67 min
Aug 22, 11:48 PM EDTSpecial Marine WarningDTX57 min
Aug 23, 12:00 AM EDTSpecial Marine WarningDTX15 min
Aug 23, 12:11 AM EDTSevere Thunderstorm WarningDTXSaint Clair31 min
Aug 23, 12:18 AM EDTSpecial Marine WarningDTX56 min
Aug 23, 4:14 AM EDTSevere Thunderstorm WarningDTXWashtenaw46 min
Aug 23, 5:53 AM EDTSpecial Marine WarningDTX39 min
Aug 23, 4:08 PM EDTSevere Thunderstorm WarningDTXMidland67 min
Aug 23, 4:46 PM EDTSpecial Marine WarningDTX79 min
Aug 23, 5:24 PM EDTSevere Thunderstorm WarningDTXBay, Saginaw40 min
Aug 23, 5:29 PM EDTTornado WarningDTXBay34 min
Aug 23, 5:50 PM EDTTornado WarningDTXTuscola55 min
Aug 23, 6:40 PM EDTTornado WarningDTXSanilac64 min
Aug 23, 6:43 PM EDTTornado WarningDTXTuscola14 min
Aug 23, 6:48 PM EDTSpecial Marine WarningDTX87 min
Aug 23, 7:10 PM EDTSevere Thunderstorm WarningDTXLivingston, Shiawassee, Washtenaw65 min
Aug 23, 7:20 PM EDTSevere Thunderstorm WarningDTXLenawee55 min
Aug 23, 7:36 PM EDTSevere Thunderstorm WarningDTXGenesee, Oakland, Wayne54 min
Aug 23, 7:38 PM EDTSpecial Marine WarningDTX2 hr

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; radar from the NEXRAD Level II archive.