Alert archive / Michigan / Tornado Warnings in 2007

Tornado Warning 3, NWS Detroit, MI

May 15, 2007Shiawassee County, Michigan

NWS Detroit, MI issued this tornado warning at May 15, 2007, 7:43 PM EDT for Shiawassee County, Michigan. It was in force for 24 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 15, 2007, 7:43 PM EDT (23:43 UTC)
Expired: May 15, 2007, 8:07 PM EDT
In force: 24 min
Issued by: NWS Detroit, MI
Area: Counties, with a storm outline in the text

County Shiawassee County, MI

The radar

The Detroit radar (KDTX), 60 km from the middle of the area, began a volume at 23:44 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.

What was reported inside it

Time	Report	Where	Remark
May 15, 7:45 PM EDT	TORNADO	Vernon, MI

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 15, 1:53 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 11.7 hours before the alert went out and 62 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1711 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 183 m²/s²
0-3 km storm-relative helicity: 162 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 152343
TORDTX
MIC155-160030-
/O.NEW.KDTX.TO.W.0003.070515T2343Z-070516T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
743 PM EDT TUE MAY 15 2007

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A

* TORNADO WARNING FOR...
  SHIAWASSEE COUNTY IN SOUTHEAST MICHIGAN

* UNTIL 830 PM EDT

* AT 740 PM EDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO NEAR
  CORUNNA...OR ABOUT NEAR OWOSSO...MOVING NORTHEAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  LENNON...JUDDVILLE AND 8 MILES SOUTHEAST OF NEW LOTHROP BY 755 PM
  EDT...

IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IN A HOME OR
BUSINESS IS AN INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID
WINDOWS.

LAT...LON 4291 8419 4289 8393 4313 8393 4313 8421

$$

SF / WAG

1 follow-up statement

000 
WWUS53 KDTX 160007
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
804 PM EDT TUE MAY 15 2007

MIC155-160014-
/O.CAN.KDTX.TO.W.0003.000000T0000Z-070516T0030Z/
SHIAWASSEE MI-
804 PM EDT TUE MAY 15 2007

...THE TORNADO WARNING FOR SHIAWASSEE COUNTY IS CANCELLED...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE SEVERE THUNDERSTORM
THAT PROMPTED THE WARNING HAD WEAKENED. THUS...THE WARNING HAS BEEN 
CANCELLED.

RADAR INDICATED THAT HEAVY RAIN...AND GUSTY WINDS WERE STILL 
POSSIBLE FROM THUNDERSTORMS THIS EVENING.

LAT...LON 4291 8419 4289 8393 4313 8393 4313 8421

$$

WAG

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 2:50 PM EDT	Severe Thunderstorm Warning	DTX	Lenawee	81 min
May 15, 3:04 PM EDT	Special Marine Warning	DTX		86 min
May 15, 3:13 PM EDT	Severe Thunderstorm Warning	DTX	Washtenaw	63 min
May 15, 3:16 PM EDT	Severe Thunderstorm Warning	DTX	Bay	29 min
May 15, 3:29 PM EDT	Severe Thunderstorm Warning	DTX	Wayne	91 min
May 15, 3:32 PM EDT	Special Marine Warning	DTX		93 min
May 15, 3:52 PM EDT	Severe Thunderstorm Warning	DTX	Huron, Tuscola	53 min
May 15, 3:52 PM EDT	Severe Thunderstorm Warning	DTX	Macomb, Oakland	83 min
May 15, 4:16 PM EDT	Special Marine Warning	DTX		89 min
May 15, 4:19 PM EDT	Special Marine Warning	DTX		116 min
May 15, 4:23 PM EDT	Tornado Warning	DTX	Huron	30 min
May 15, 4:26 PM EDT	Special Marine Warning	DTX		45 min
May 15, 4:35 PM EDT	Severe Thunderstorm Warning	DTX	Saint Clair	85 min
May 15, 4:56 PM EDT	Severe Thunderstorm Warning	DTX	Sanilac	39 min
May 15, 5:21 PM EDT	Severe Thunderstorm Warning	DTX	Macomb, Oakland	39 min
May 15, 5:48 PM EDT	Severe Thunderstorm Warning	DTX	Saint Clair	36 min
May 15, 6:11 PM EDT	Special Marine Warning	DTX		19 min
May 15, 6:20 PM EDT	Severe Thunderstorm Warning	DTX	Livingston, Washtenaw	71 min
May 15, 6:21 PM EDT	Severe Thunderstorm Warning	DTX	Oakland	84 min
May 15, 6:47 PM EDT	Special Marine Warning	DTX		58 min
May 15, 6:55 PM EDT	Severe Thunderstorm Warning	DTX	Genesee, Shiawassee	80 min
May 15, 7:01 PM EDT	Severe Thunderstorm Warning	DTX	Macomb	68 min
May 15, 7:11 PM EDT	Special Marine Warning	DTX		35 min
May 15, 7:11 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer	65 min
May 15, 7:38 PM EDT	Severe Thunderstorm Warning	DTX	Saint Clair	46 min
May 15, 7:54 PM EDT	Special Marine Warning	DTX		44 min

Nearby

Tornado Warnings in Michigan, 2007 Every tornado warning in 2007 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.