Alert archive / Michigan / Tornado Warnings in 2003
Tornado Warning 7, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this tornado warning at Aug 21, 2003, 8:46 PM EDT for Ingham County, Michigan. It was in force for 44 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, 8:46 PM EDT (00:46 UTC)
- Expired
- Aug 21, 2003, 9:30 PM EDT
- In force
- 44 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Counties, with a storm outline in the text
County Ingham County, MI
The radar
The Detroit radar (KDTX), 60 km from the middle of the area, began a volume at 00:47 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, 0.8 hours before the alert went out and 63 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 KGRR 220046 TORGRR MIC065-220130- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE GRAND RAPIDS MI 846 PM EDT THU AUG 21 2003 THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A * TORNADO WARNING FOR... INGHAM COUNTY IN SOUTH CENTRAL MICHIGAN * UNTIL 930 PM EDT * AT 844 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM PRODUCING A TORNADO OVER WEBBERVILLE...OR ABOUT 11 MILES EAST OF MASON...MOVING EAST AT 20 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... BELL OAK AROUND 855 PM EDT 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. LAT...LON 4270 8439 4252 8436 4253 8391 4276 8394 $$ DUKE 93
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 8:02 PM EDT | Severe Thunderstorm Warning | GRR | Ingham | 28 min |
| Aug 21, 8:15 PM EDT | Severe Thunderstorm Warning | GRR | Ionia | 30 min |
| Aug 21, 8:16 PM EDT | Special Marine Warning | GRR | 59 min | |
| Aug 21, 8:16 PM EDT | Special Marine Warning | GRR | 59 min | |
| Aug 21, 8:19 PM EDT | Severe Thunderstorm Warning | GRR | Barry, Eaton | 56 min |
| Aug 21, 8:26 PM EDT | Severe Thunderstorm Warning | GRR | Van Buren | 64 min |
| Aug 21, 8:29 PM EDT | Severe Thunderstorm Warning | GRR | Ingham | 46 min |
| Aug 21, 8:55 PM EDT | Severe Thunderstorm Warning | GRR | Calhoun, Kalamazoo | 65 min |
| Aug 21, 9:15 PM EDT | Special Marine Warning | GRR | 30 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.