Alert archive / Michigan / Tornado Warnings in 1997
Tornado Warning 2, NWS Detroit, MI
NWS Detroit, MI issued this tornado warning at Jun 21, 1997, 5:31 PM EDT for Lapeer County, Michigan. It was in force for 44 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 21, 1997, 5:31 PM EDT (21:31 UTC)
- Expired
- Jun 21, 1997, 6:15 PM EDT
- In force
- 44 min
- Issued by
- NWS Detroit, MI
- Area
- Whole counties
County Lapeer County, MI
The radar
The Detroit radar (KDTX), 48 km from the middle of the area, began a volume at 21:30 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 |
|---|---|---|---|
| Jun 21, 6:00 PM EDT | Thunderstorm Wind 55 | Almont, MI |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 21, 4:00 PM EDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 9.5 hours before the alert went out and 44 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 801 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
470
WFUS01 KDTX 212132 RRA
TORDTX
MIC087-212215-
BULLETIN - EAS ACTIVATION
TORNADO WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
531 PM EDT SAT JUN 21 1997
* TORNADO WARNING FOR
LAPEER COUNTY - SOUTHEASTERN LOWER MICHIGAN
* UNTIL 615 PM EDT
* SOME AREAS AFFECTED
COLUMBIAVILLE BY 535 PM EDT
NORTH BRANCH BY 553 PM EDT
KINGS MILL BY 555 PM EDT
LUM BY 557 PM EDT
* AT 529 PM EDT...A POSSIBLE TORNADO WAS INDICATED BY
DETROIT/PONTIAC DOPPLER RADAR AND SPOTTER REPORTS 12 MILES
NORTHWEST OF LAPEER OR 4 MILES NORTHWEST OF COLUMBIAVILLE
MOVING EAST AT 35 MPH.
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.The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 10:59 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee | 46 min |
| Jun 21, 4:31 PM EDT | Severe Thunderstorm Warning | DTX | Shiawassee | 59 min |
| Jun 21, 4:47 PM EDT | Tornado Warning | DTX | Genesee | 43 min |
| Jun 21, 5:48 PM EDT | Tornado Warning | DTX | Genesee | 27 min |
| Jun 21, 6:04 PM EDT | Flash Flood Warning | DTX | Genesee, Lapeer | 2 hr |
| Jun 21, 6:18 PM EDT | Severe Thunderstorm Warning | DTX | Saint Clair, Sanilac | 57 min |
| Jun 21, 6:40 PM EDT | Severe Thunderstorm Warning | DTX | Oakland | 35 min |
| Jun 21, 6:50 PM EDT | Severe Thunderstorm Warning | DTX | Macomb | 65 min |
| Jun 21, 7:15 PM EDT | Severe Thunderstorm Warning | DTX | Saint Clair | 45 min |
| Jun 21, 7:24 PM EDT | Severe Thunderstorm Warning | DTX | Wayne | 31 min |
Nearby
Tornado Warnings in Michigan, 1997Every tornado warning in 1997Tornadoes in 1997
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.