Alert archive / Michigan / Tornado Warnings in 2003
Tornado Warning 12, NWS Detroit, MI
NWS Detroit, MI issued this tornado warning at Aug 21, 2003, 10:11 PM EDT for Washtenaw County, Michigan. It was in force for 64 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
- Aug 21, 2003, 10:11 PM EDT (02:11 UTC)
- Expired
- Aug 21, 2003, 11:15 PM EDT
- In force
- 64 min
- Issued by
- NWS Detroit, MI
- Area
- Counties, with a storm outline in the text
County Washtenaw County, MI
The radar
The Detroit radar (KDTX), 56 km from the middle of the area, began a volume at 02:11 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 nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 2.2 hours before the alert went out and 60 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
- 3445 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1295 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 239 m²/s²
- 0-3 km storm-relative helicity
- 306 m²/s²
- Significant tornado parameter
- 2.2
- Supercell composite
- 16.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KDTX 220211 TORDTX MIC161-220315- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 1011 PM EDT THU AUG 21 2003 THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A * TORNADO WARNING FOR... WASHTENAW COUNTY IN SOUTHEAST MICHIGAN * UNTIL 1115 PM EDT * AT 1006 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER CHELSEA... OR 14 MILES WEST OF ANN ARBOR...MOVING SOUTHEAST AT 35 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... ANN ARBOR AT 1025 PM EDT SALINE AT 1030 PM EDT YPSILANTI AT 1035 PM EDT SEEK SHELTER IN THE INNERMOST PORTION OF THE BUILDING...ON THE LOWEST FLOOR. GET TO A BASEMENT IF ONE IS AVAILABLE...AND AVOID WINDOWS. PROTECT YOUR BODY FROM FLYING DEBRIS WITH CUSHIONS OR PILLOWS. LAT...LON 4243 8399 4226 8410 4209 8371 4226 8356 $$ OKEEFE BGM
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 8:06 PM EDT | Severe Thunderstorm Warning | DTX | Oakland | 54 min |
| Aug 21, 8:19 PM EDT | Severe Thunderstorm Warning | DTX | Genesee | 41 min |
| Aug 21, 8:21 PM EDT | Special Marine Warning | DTX | 69 min | |
| Aug 21, 8:31 PM EDT | Severe Thunderstorm Warning | DTX | Livingston | 59 min |
| Aug 21, 8:47 PM EDT | Severe Thunderstorm Warning | DTX | Lapeer | 43 min |
| Aug 21, 8:48 PM EDT | Special Marine Warning | DTX | 27 min | |
| Aug 21, 8:51 PM EDT | Tornado Warning | DTX | Livingston | 54 min |
| Aug 21, 9:44 PM EDT | Severe Thunderstorm Warning | DTX | Lapeer | 46 min |
| Aug 21, 9:54 PM EDT | Severe Thunderstorm Warning | DTX | Washtenaw | 66 min |
| Aug 21, 10:59 PM EDT | Special Marine Warning | DTX | 46 min | |
| Aug 21, 11:06 PM EDT | Severe Thunderstorm Warning | DTX | Monroe | 54 min |
Nearby
Tornado Warnings in Michigan, 2003Every tornado warning in 2003Tornadoes in 2003
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.