Alert archive / Michigan / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 39, NWS Detroit, MI

May 3, 2012Huron County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at May 3, 2012, 5:46 PM EDT for Huron County, Michigan. It was in force for 19 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 3, 2012, 5:46 PM EDT (21:46 UTC)
Expired
May 3, 2012, 6:05 PM EDT
In force
19 min
Issued by
NWS Detroit, MI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Huron County, MI

The radar

The Detroit radar (KDTX), 138 km from the middle of the area, began a volume at 21:47 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
May 3, 2:35 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 9.8 hours before the alert went out and 134 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, Detroit, MI at 12:00Z on 2012-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1476 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2012-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 212 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
1476 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
948 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
212 m²/s²
0-3 km storm-relative helicity
233 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

506 
WUUS53 KDTX 032146
SVRDTX
MIC063-032215-
/O.NEW.KDTX.SV.W.0039.120503T2146Z-120503T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
546 PM EDT THU MAY 3 2012

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN HURON COUNTY IN SOUTHEAST MICHIGAN...

* UNTIL 615 PM EDT

* AT 540 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 8 MILES
  WEST OF HARBOR BEACH...AND MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HELENA AND HARBOR BEACH AROUND 555 PM EDT.
  WHITE ROCK AROUND 600 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  UBLY...               HARBOR BEACH...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS.

&&

LAT...LON 4391 8267 4389 8267 4387 8265 4383 8262
      4371 8260 4369 8260 4368 8298 4368 8305
      4387 8286 4393 8269
TIME...MOT...LOC 2146Z 275DEG 25KT 4381 8276
WIND...HAIL 60MPH 1.00IN

$$
CLARK
2 follow-up statements
474 
WWUS53 KDTX 032153
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
553 PM EDT THU MAY 3 2012

MIC063-032215-
/O.CON.KDTX.SV.W.0039.000000T0000Z-120503T2215Z/
HURON MI-
553 PM EDT THU MAY 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
HURON COUNTY UNTIL 615 PM EDT...

AT 550 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 5 MILES
NORTHEAST OF UBLY...MOVING NORTHEAST AT 45 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HELENA AROUND 600 PM EDT.
  HARBOR BEACH AROUND 605 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  UBLY...               HARBOR BEACH...

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY OR VISIT THE NATIONAL WEATHER SERVICE DETROIT/PONTIAC FACEBOOK
PAGE.

LAT...LON 4391 8267 4390 8267 4388 8267 4383 8262
      4382 8262 4381 8262 4369 8260 4368 8305
      4383 8285 4393 8269
TIME...MOT...LOC 2153Z 231DEG 38KT 4377 8281
WIND...HAIL 60MPH 1.00IN

$$

MR
079 
WWUS53 KDTX 032205
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
605 PM EDT THU MAY 3 2012

MIC063-032214-
/O.CAN.KDTX.SV.W.0039.000000T0000Z-120503T2215Z/
HURON MI-
605 PM EDT THU MAY 3 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HURON COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY OR VISIT THE NATIONAL WEATHER SERVICE DETROIT/PONTIAC FACEBOOK
PAGE.

LAT...LON 4391 8267 4390 8267 4388 8267 4383 8262
      4382 8262 4381 8262 4369 8260 4368 8305
      4383 8285 4393 8269
TIME...MOT...LOC 2204Z 231DEG 38KT 4384 8268

$$

MR

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 7:36 AM EDTSpecial Marine WarningDTX54 min
May 3, 4:17 PM EDTSevere Thunderstorm WarningDTXBay, Midland58 min
May 3, 4:23 PM EDTSpecial Marine WarningDTX87 min
May 3, 5:01 PM EDTSevere Thunderstorm WarningDTXHuron29 min
May 3, 5:10 PM EDTSevere Thunderstorm WarningDTXBay, Saginaw, Tuscola50 min
May 3, 5:40 PM EDTSpecial Marine WarningDTX72 min
May 3, 5:41 PM EDTSevere Thunderstorm WarningDTXTuscola64 min
May 3, 6:02 PM EDTSevere Thunderstorm WarningDTXShiawassee58 min
May 3, 6:26 PM EDTSevere Thunderstorm WarningDTXGenesee51 min
May 3, 6:50 PM EDTSevere Thunderstorm WarningDTXLapeer44 min
May 3, 7:59 PM EDTSpecial Marine WarningDTX75 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2012Every severe thunderstorm warning in 2012

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.