Alert archive / Michigan / Tornado Warnings in 2009

Tornado Warning 3, NWS Detroit, MI

June 25, 2009Lapeer County, Michigan

NWS Detroit, MI issued this tornado warning at Jun 25, 2009, 2:24 PM EDT for Lapeer County, Michigan. It was in force for 27 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
Jun 25, 2009, 2:24 PM EDT (18:24 UTC)
Expired
Jun 25, 2009, 2:51 PM EDT
In force
27 min
Issued by
NWS Detroit, MI
Area
Storm-based polygon

County Lapeer County, MI

The radar

The Detroit radar (KDTX), 37 km from the middle of the area, began a volume at 18:27 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
Jun 25, 2:08 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 6.4 hours before the alert went out and 33 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 2009-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 951 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 2009-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.19395878Sfc1 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
951 J/kg
Mixed-layer CIN
-139 J/kg
Mixed-layer LCL
1793 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
35 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KDTX 251824
TORDTX
MIC087-251930-
/O.NEW.KDTX.TO.W.0003.090625T1824Z-090625T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
224 PM EDT THU JUN 25 2009

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN LAPEER COUNTY IN SOUTHEAST MICHIGAN...

* UNTIL 330 PM EDT

* AT 224 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  NEAR HADLEY...OR 6 MILES SOUTHWEST OF LAPEER...AND MOVING EAST AT
  20 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
  METAMORA AROUND 240 PM EDT.
  THORNVILLE AND ATTICA AROUND 250 PM EDT.
  DRYDEN AND IMLAY CITY AROUND 305 PM EDT.
  ALMONT AROUND 315 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  METAMORA...           LAPEER...             IMLAY CITY...
  HADLEY...             DRYDEN...             ALMONT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES
OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF
NO SHELTER IS AVAILABLE... LIE FLAT IN THE NEAREST DITCH OR OTHER LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 4289 8299 4288 8345 4307 8346 4305 8299
TIME...MOT...LOC 1825Z 287DEG 17KT 4297 8337

$$

SF
2 follow-up statements
000 
WWUS53 KDTX 251841
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
241 PM EDT THU JUN 25 2009

MIC087-251930-
/O.CON.KDTX.TO.W.0003.000000T0000Z-090625T1930Z/
LAPEER MI-
242 PM EDT THU JUN 25 2009  

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM EDT FOR
SOUTHEASTERN LAPEER COUNTY...

AT 241 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR
DRYDEN...OR 6 MILES WEST OF ALMONT...MOVING EAST AT 20 MPH.

THE TORNADO WILL BE NEAR...
  IMLAY CITY AROUND 250 PM EDT.
  ALMONT AROUND 300 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  METAMORA...           IMLAY CITY...         DRYDEN...
  ALMONT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES
OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF
NO SHELTER IS AVAILABLE... LIE FLAT IN THE NEAREST DITCH OR OTHER LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 4289 8337 4302 8324 4305 8299 4289 8299
TIME...MOT...LOC 1842Z 285DEG 19KT 4295 8316

$$

SF/DRC
000 
WWUS53 KDTX 251851
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
251 PM EDT THU JUN 25 2009

MIC087-251901-
/O.CAN.KDTX.TO.W.0003.000000T0000Z-090625T1930Z/
LAPEER MI-
251 PM EDT THU JUN 25 2009  

...THE TORNADO WARNING FOR SOUTHEASTERN LAPEER COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER
APPEARED TO BE SEVERE...HOWEVER SMALL HAIL IS STILL POSSIBLE WITH
THIS THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM EDT.

LAT...LON 4289 8337 4302 8324 4305 8299 4289 8299
TIME...MOT...LOC 1851Z 285DEG 19KT 4294 8310

$$

SF/DRC

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 8:19 PM EDTSpecial Marine WarningDTX51 min
Jun 24, 8:51 PM EDTSevere Thunderstorm WarningDTXMidland30 min
Jun 25, 10:40 AM EDTSpecial Marine WarningDTX54 min
Jun 25, 1:49 PM EDTSevere Thunderstorm WarningDTXGenesee, Lapeer56 min
Jun 25, 1:56 PM EDTSevere Thunderstorm WarningDTXLivingston64 min
Jun 25, 2:26 PM EDTSevere Thunderstorm WarningDTXOakland64 min
Jun 25, 2:45 PM EDTSevere Thunderstorm WarningDTXMacomb60 min
Jun 25, 2:55 PM EDTSevere Thunderstorm WarningDTXLivingston65 min
Jun 25, 3:03 PM EDTSpecial Marine WarningDTX87 min
Jun 25, 3:19 PM EDTSevere Thunderstorm WarningDTXOakland56 min
Jun 25, 3:34 PM EDTSevere Thunderstorm WarningDTXWashtenaw, Wayne71 min
Jun 25, 3:47 PM EDTSevere Thunderstorm WarningDTXLapeer29 min
Jun 25, 3:48 PM EDTSpecial Marine WarningDTX72 min
Jun 25, 3:58 PM EDTRiver Flood WarningDTXLivingston3 days
Jun 25, 4:01 PM EDTSevere Thunderstorm WarningDTXMonroe65 min
Jun 25, 4:21 PM EDTFlash Flood WarningDTXLapeer, Macomb, Oakland3 hr
Jun 25, 4:29 PM EDTSpecial Marine WarningDTX63 min
Jun 25, 4:35 PM EDTTornado WarningDTXMonroe29 min
Jun 25, 4:43 PM EDTFlash Flood WarningDTXWashtenaw3 hr
Jun 25, 4:45 PM EDTSevere Thunderstorm WarningDTXWashtenaw45 min
Jun 25, 5:14 PM EDTSevere Thunderstorm WarningDTXLivingston20 min
Jun 25, 6:22 PM EDTSevere Thunderstorm WarningDTXGenesee, Lapeer, Tuscola38 min
Jun 25, 7:32 PM EDTSpecial Marine WarningDTX28 min

Nearby

Tornado Warnings in Michigan, 2009Every tornado warning in 2009Tornadoes in 2009

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.