Alert archive / Michigan / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 24, NWS Detroit, MI

May 22, 2013Lenawee County, Washtenaw County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at May 22, 2013, 7:31 PM EDT for Lenawee County, Washtenaw County, Michigan. It was in force for 59 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 22, 2013, 7:31 PM EDT (23:31 UTC)
Expired
May 22, 2013, 8:30 PM EDT
In force
59 min
Issued by
NWS Detroit, MI
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Lenawee County, MI, Washtenaw County, MI

The radar

The Detroit radar (KDTX), 80 km from the middle of the area, began a volume at 23:32 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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.5 hours before the alert went out and 294 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.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2013-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2013-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -77 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
898 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-77 m²/s²
0-3 km storm-relative helicity
-39 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 22, 7:07 PM EDT, 24 minutes earlier.

Area forecast discussion, May 22, 7:07 PM EDT, 24 minutes before
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Hazardous weather outlook, May 22, 3:50 PM EDT, 3 hours 41 minutes before
HAZARDOUS WEATHER OUTLOOK...CORRECTION
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
350 PM EDT WED MAY 22 2013

MIZ047>049-053>055-060>063-068>070-075-076-082-083-232000-
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER-
ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-
350 PM EDT WED MAY 22 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MICHIGAN.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON INTO
TONIGHT. THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS IN
EXCESS OF 60 MPH. IN ADDITION...THE POTENTIAL DOES EXIST FOR AN
ISOLATED TORNADO TO DEVELOP. HEAVY RAIN AND SMALL HAIL WILL ALSO
BE POSSIBLE IN ANY STRONGER STORMS.  STORM MOTION WILL BE TO THE
NORTHEAST AT 35 MPH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A COLD FRONT MOVING SOUTHEAST MICHIGAN WILL BRING A CHANCE OF
THUNDERSTORMS THURSDAY MORNING FOR AREAS ALONG AND SOUTH OF M-59.
WHILE THESE STORMS ARE NOT EXPECTED TO BE SEVERE...WIND GUSTS TO
45 MPH AND HALF INCH SIZE HAIL WILL BE POSSIBLE WITHIN ANY
STRONGER STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THROUGH THIS EVENING.

LCZ422-423-460-LEZ444-LHZ361>363-421-422-441>443-462>464-232000-
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-
350 PM EDT WED MAY 22 2013

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON INTO
TONIGHT. THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS IN
EXCESS OF 60 MPH. IN ADDITION...THE POTENTIAL DOES EXIST FOR AN
ISOLATED TORNADO TO DEVELOP. HEAVY RAIN AND SMALL HAIL WILL ALSO
BE POSSIBLE IN ANY STRONGER STORMS.  STORM MOTION WILL BE TO THE
NORTHEAST AT 30 KNOTS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

A COLD FRONT MOVING SOUTHEAST MICHIGAN WILL BRING A CHANCE OF
THUNDERSTORMS THURSDAY MORNING ACROSS LAKE ST CLAIR AND THE
MICHIGAN WATERS OF LAKE ERIE. WHILE THESE STORMS ARE NOT EXPECTED
TO BE SEVERE...WIND GUSTS TO 45 MPH AND HALF INCH SIZE HAIL WILL
BE POSSIBLE WITHIN ANY STRONGER STORMS.

A SMALL CRAFT ADVISORY IS IN EFFECT THURSDAY AND THURSDAY EVENING FOR
THE NEARSHORE WATERS OF LAKE HURON INCLUDING OUTER SAGINAW BAY.
REFER TO THE LATEST MARINE FORECASTS FOR DETAILS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THROUGH THIS EVENING.

MR

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 22, 5:31 PM EDT, 2 hours before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
531 PM EDT WED MAY 22 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0527 PM     TSTM WND GST     1 SE ROMULUS            42.21N 83.35W
05/22/2013  M54 MPH          WAYNE              MI   ASOS

&&

SES
Special weather statement, May 22, 5:45 PM EDT, 1 hour 46 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
545 PM EDT WED MAY 22 2013

MIZ049-054-055-061-062-222245-
GENESEE-HURON-LAPEER-SANILAC-TUSCOLA-
545 PM EDT WED MAY 22 2013

...SPECIAL WEATHER STATEMENT...

AT 544 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS ALONG A LINE EXTENDING FROM 10 MILES NORTHWEST OF CASS
CITY TO DAVISON...MOVING NORTHEAST AT 40 MPH.

WINDS GREATER THAN 30 MPH...OCCASIONAL CLOUD TO GROUND LIGHTNING...
BRIEF MODERATE DOWNPOURS...ARE POSSIBLE WITH THESE STORMS.

* THUNDERSTORMS WILL BE NEAR...
  OWENDALE AND MAYVILLE BY 550 PM EDT...
  LAPEER AND GAGETOWN BY 555 PM EDT...
  ELKTON AND CASS CITY BY 600 PM EDT...
  KINGSTON BY 605 PM EDT...
  IMLAY CITY AND LUM BY 610 PM EDT...
  MARLETTE AND BAD AXE BY 615 PM EDT...
  KINDE BY 620 PM EDT...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK
SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED.

MANN
Local storm report, May 22, 5:47 PM EDT, 1 hour 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
547 PM EDT WED MAY 22 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0514 PM     TSTM WND DMG     6 NE MILAN              42.14N 83.60W
05/22/2013                   WASHTENAW          MI   EMERGENCY MNGR

            14 INCH TREE BRANCH DOWN ACROSS ROAD BRINGING DOWN POWER
            LINES. RADAR ESTIMATED TIME.

&&

SES
Local storm report, May 22, 6:23 PM EDT, 1 hour 8 minutes before
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Local storm report, May 22, 6:33 PM EDT, 58 minutes before
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Special weather statement, May 22, 7:05 PM EDT, 26 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 21, 8:04 PM EDTMarine Dense Fog AdvisoryDTX12 hr
May 22, 3:20 PM EDTSmall Craft AdvisoryDTX53 hr
May 22, 4:54 PM EDTSevere Thunderstorm WarningDTXLenawee, Monroe, Washtenaw, Wayne66 min
May 22, 5:06 PM EDTSpecial Marine WarningDTX84 min
May 22, 5:27 PM EDTSevere Thunderstorm WarningDTXLivingston, Macomb, Oakland63 min
May 22, 6:11 PM EDTSpecial Marine WarningDTX64 min
May 22, 6:13 PM EDTSevere Thunderstorm WarningDTXSaint Clair62 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2013Every severe thunderstorm warning in 2013

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.