Alert archive / Michigan / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 45, NWS Detroit, MI

July 15, 2010Oakland County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Jul 15, 2010, 5:10 PM EDT for Oakland 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: Jul 15, 2010, 5:10 PM EDT (21:10 UTC)
Expired: Jul 15, 2010, 6:30 PM EDT
In force: 80 min
Issued by: NWS Detroit, MI
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Oakland County, MI

The radar

The Detroit radar (KDTX), 8 km from the middle of the area, began a volume at 21:10 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
Jul 15, 1:30 PM EDT	Severe Thunderstorm Watch	SPC	6 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 Jul 15, 4:18 PM EDT, 52 minutes earlier.

Area forecast discussion, Jul 15, 4:18 PM EDT, 52 minutes before

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Hazardous weather outlook, Jul 15, 1:47 PM EDT, 3 hours 23 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
147 PM EDT THU JUL 15 2010

MIZ047>049-053>055-060>063-160830-
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER-
ST. CLAIR-
147 PM EDT THU JUL 15 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST MICHIGAN ALONG AND
NORTH OF INTERSTATE 69.

.DAY ONE...TODAY AND TONIGHT

NUMEROUS THUNDERSTORMS ARE EXPECTED THIS AFTERNOON INTO EARLY
EVENING. THERE IS A SLIGHT CHANCE OF SEVERE WEATHER WITH THESE
STORMS. THUNDERSTORMS WILL CONTINUE TO DEVELOP THIS AFTERNOON OVER
NORTHERN AND WESTERN LOWER MICHIGAN IN ADVANCE OF A COLD FRONT IN
THE WARM AND HUMID AIR MASS. THE STRONGER STORMS WILL BE CAPABLE OF
PRODUCING WIND GUSTS TO 70 MPH AND ONE INCH DIAMETER HAIL AS THEY
MOVE EAST AT 40 MPH. INTENSE RAINFALL IS POSSIBLE WITH ANY
THUNDERSTORM AND MAY BE SIGNIFICANT ENOUGH TO PRODUCE SOME LOCALIZED
FLOODING.

THE THREAT OF SEVERE WEATHER AND THUNDERSTORMS WILL END WITH THE
PASSAGE OF THE COLD FRONT LATE THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY AFTERNOON THROUGH MONDAY
AS ANOTHER FRONT MOVES ACROSS THE REGION. THERE IS A CHANCE OF
SEVERE WEATHER ON SUNDAY.

.SPOTTER INFORMATION STATEMENT...
DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY.
SPOTTER ACTIVATION HAS OCCURRED FOR THIS AFTERNOON AND EVENING.

MIZ068>070-075-076-082-083-160830-
LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-
147 PM EDT THU JUL 15 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST MICHIGAN ALONG AND
SOUTH OF M 59.

.DAY ONE...TODAY AND TONIGHT

NUMEROUS THUNDERSTORMS ARE EXPECTED LATE THIS AFTERNOON INTO THE
LATE EVENING HOURS. THERE IS A SLIGHT CHANCE OF SEVERE WEATHER WITH
THESE STORMS. THUNDERSTORMS WILL CONTINUE TO DEVELOP IN NORTHERN AND
WESTERN LOWER MICHIGAN IN ADVANCE OF A COLD FRONT IN THE WARM AND
HUMID AIR MASS. THE STRONGER STORMS WILL BE CAPABLE OF PRODUCING
WIND GUSTS TO 70 MPH AND ONE INCH DIAMETER HAIL AS THEY MOVE EAST AT
30 MPH. SOME STORMS MAY MOVE REPEATEDLY OVER THE SAME AREA...LEADING
TO A PROLONGED PERIOD OF INTENSE RAINFALL. THUS...LOCALIZED FLOODING
WILL ALSO BE POSSIBLE WITH ANY STORM THAT DEVELOPS TODAY.

THE THREAT OF SEVERE WEATHER AND THUNDERSTORMS WILL END WITH THE
PASSAGE OF THE COLD FRONT AFTER MIDNIGHT.

HUMIDITY WILL ALSO INCREASE TODAY. THIS COMBINED WITH HIGH
TEMPERATURES NEAR 90 WILL LEAD TO HEAT INDICES OF 95 TO 100 DEGREES.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ON SATURDAY AS A WEAK
FRONT SLIDES ACROSS THE REGION. ISOLATED SEVERE WEATHER IS
POSSIBLE WITH THESE STORMS.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY AFTERNOON THROUGH MONDAY
AS ANOTHER FRONT MOVES ACROSS THE REGION. THERE IS A CHANCE OF
SEVERE WEATHER ON SUNDAY.

.SPOTTER INFORMATION STATEMENT...
DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY.
SPOTTER ACTIVATION HAS OCCURRED THIS AFTERNOON AND EVENING.

LCZ422-423-460-LEZ444-LHZ361>363-421-422-441>443-462>464-160830-
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-
147 PM EDT THU JUL 15 2010

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

.DAY ONE...TODAY AND TONIGHT

NUMEROUS THUNDERSTORMS ARE EXPECTED THIS AFTERNOON INTO LATE THIS
EVENING. THERE IS A SLIGHT CHANCE OF SEVERE WEATHER WITH THESE
STORMS. THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER LOWER MICHIGAN.
THE STRONGER STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 60
KNOTS AND HALF INCH DIAMETER HAIL AS THEY MOVE EAST 25 TO 30 KNOTS.
SOME STORMS MAY MOVE REPEATEDLY OVER THE SAME AREA...LEADING TO A
PROLONGED PERIOD OF INTENSE RAINFALL.

THESE STORMS HAVE DEVELOPED WITHIN A VERY MOIST AIR MASS AHEAD OF
A SLOW MOVING COLD FRONT...FORECAST TO PASS THROUGH THE AREA LATE
THIS EVENING. HUMIDITY WILL ALSO INCREASE TODAY. THIS COMBINED
WITH HIGH TEMPERATURES NEAR 90 WILL LEAD TO HEAT INDICES AROUND 95
DEGREES.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ON SATURDAY AS A WEAK
FRONT SLIDES ACROSS THE REGION. ISOLATED SEVERE WEATHER IS
POSSIBLE WITH THESE STORMS.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY AFTERNOON THROUGH MONDAY
AS ANOTHER FRONT MOVES ACROSS THE REGION. THERE IS A CHANCE OF
SEVERE WEATHER ON SUNDAY.

.SPOTTER INFORMATION STATEMENT...
DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY.
SPOTTER ACTIVATION HAS OCCURRED THIS AFTERNOON AND EVENING.

SC/RBP

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, Jul 15, 4:19 PM EDT, 51 minutes before

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Local storm report, Jul 15, 4:39 PM EDT, 31 minutes before

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Local storm report, Jul 15, 4:41 PM EDT, 29 minutes before

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Local storm report, Jul 15, 4:58 PM EDT, 12 minutes before

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Special weather statement, Jul 15, 4:59 PM EDT, 11 minutes before

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Local storm report, Jul 15, 5:10 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 5:34 AM EDT	Small Craft Advisory	DTX		10 hr
Jul 15, 2:06 PM EDT	Special Marine Warning	DTX		114 min
Jul 15, 2:55 PM EDT	Special Marine Warning	DTX		110 min
Jul 15, 2:55 PM EDT	Severe Thunderstorm Warning	DTX	Bay	50 min
Jul 15, 3:09 PM EDT	Severe Thunderstorm Warning	DTX	Huron	96 min
Jul 15, 3:39 PM EDT	Severe Thunderstorm Warning	DTX	Bay, Saginaw	42 min
Jul 15, 3:43 PM EDT	Special Marine Warning	DTX		62 min
Jul 15, 3:55 PM EDT	Special Marine Warning	DTX		65 min
Jul 15, 3:55 PM EDT	Severe Thunderstorm Warning	DTX	Saginaw	28 min
Jul 15, 3:57 PM EDT	Severe Thunderstorm Warning	DTX	Shiawassee	78 min
Jul 15, 4:10 PM EDT	Severe Thunderstorm Warning	DTX	Tuscola	48 min
Jul 15, 4:29 PM EDT	Small Craft Advisory	DTX		24 hr
Jul 15, 4:31 PM EDT	Severe Thunderstorm Warning	DTX	Genesee	59 min
Jul 15, 4:45 PM EDT	Special Marine Warning	DTX		90 min
Jul 15, 4:51 PM EDT	Severe Thunderstorm Warning	DTX	Genesee, Livingston, Shiawassee	54 min
Jul 15, 4:58 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer	77 min
Jul 15, 5:12 PM EDT	Severe Thunderstorm Warning	DTX	Livingston	66 min
Jul 15, 5:18 PM EDT	Severe Thunderstorm Warning	DTX	Huron, Tuscola	29 min
Jul 15, 5:20 PM EDT	Severe Thunderstorm Warning	DTX	Saint Clair, Sanilac	70 min
Jul 15, 5:27 PM EDT	Special Marine Warning	DTX		108 min
Jul 15, 5:46 PM EDT	Severe Thunderstorm Warning	DTX	Washtenaw	74 min
Jul 15, 5:52 PM EDT	Severe Thunderstorm Warning	DTX	Oakland	73 min
Jul 15, 6:00 PM EDT	Severe Thunderstorm Warning	DTX	Macomb, Saint Clair, Wayne	90 min
Jul 15, 6:09 PM EDT	Severe Thunderstorm Warning	DTX	Wayne	81 min
Jul 15, 6:12 PM EDT	Special Marine Warning	DTX		100 min
Jul 15, 6:26 PM EDT	Areal Flood Advisory	DTX	Macomb, Oakland, Washtenaw, Wayne	3 hr
Jul 15, 7:15 PM EDT	Special Marine Warning	DTX		45 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2010 Every severe thunderstorm warning in 2010

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.