Alert archive / Michigan / Tornado Warnings in 2004

Tornado Warning 3, NWS Detroit, MI

May 14, 2004Lapeer County, Michigan

NWS Detroit, MI issued this tornado warning at May 14, 2004, 5:42 PM EDT for Lapeer County, Michigan. It was in force for 63 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 14, 2004, 5:42 PM EDT (21:42 UTC)
Expired: May 14, 2004, 6:45 PM EDT
In force: 63 min
Issued by: NWS Detroit, MI
Area: Counties, with a storm outline in the text

County Lapeer County, MI

The radar

The Detroit radar (KDTX), 61 km from the middle of the area, began a volume at 21:44 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.

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 14, 1:05 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 9.7 hours before the alert went out and 57 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: 177 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 663 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 64 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.

087 
WFUS53 KDTX 142142
TORDTX
MIC087-142245-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
542 PM EDT FRI MAY 14 2004

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A

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

* UNTIL 645 PM EDT

* AT 539 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 18 MILES
  SOUTHWEST OF NORTH BRANCH...OR ABOUT 11 MILES NORTHWEST OF
  LAPEER...MOVING NORTHEAST AT 50 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  NORTH BRANCH AROUND 600 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FRIDAY
EVENING FOR SOUTHEAST MICHIGAN.

LAT...LON 4321 8343 4312 8345 4320 8300 4327 8301
          4330 8313

$$

SF / DRC

The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 3:47 PM EDT	Severe Thunderstorm Warning	DTX	Saginaw	58 min
May 14, 4:43 PM EDT	Severe Thunderstorm Warning	DTX	Shiawassee	62 min
May 14, 5:17 PM EDT	Tornado Warning	DTX	Genesee	58 min
May 14, 5:44 PM EDT	Tornado Warning	DTX	Saint Clair	61 min
May 14, 5:47 PM EDT	Special Marine Warning	DTX		88 min
May 14, 6:03 PM EDT	Special Marine Warning	DTX		87 min
May 14, 6:03 PM EDT	Special Marine Warning	DTX		87 min
May 14, 6:13 PM EDT	Tornado Warning	DTX	Sanilac	62 min
May 14, 6:23 PM EDT	Severe Thunderstorm Warning	DTX	Macomb	67 min
May 14, 6:46 PM EDT	Severe Thunderstorm Warning	DTX	Saint Clair	59 min
May 14, 7:15 PM EDT	Special Marine Warning	DTX		90 min
May 14, 7:15 PM EDT	Special Marine Warning	DTX		90 min

Nearby

Tornado Warnings in Michigan, 2004 Every tornado warning in 2004 Tornadoes in 2004

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.