Alert archive / Michigan / Tornado Warnings in 2001
Tornado Warning 17, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this tornado warning at May 21, 2001, 4:45 PM EDT for Isabella County, Michigan. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 21, 2001, 4:45 PM EDT (20:45 UTC)
- Expired
- May 21, 2001, 5:15 PM EDT
- In force
- 30 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Whole counties
County Isabella County, MI
The radar
The Grand Rapids radar (KGRR), 100 km from the middle of the area, began a volume at 20:44 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 21, 3:00 PM EDT | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 8.8 hours before the alert went out and 154 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
- 293 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 630 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted, in the capitals the NWS used until 2016.
411 WFUS53 KGRR 212046 TORGRR MIC073-212115- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE GRAND RAPIDS MI 445 PM EDT MON MAY 21 2001 THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A * TORNADO WARNING FOR... ISABELLA COUNTY IN CENTRAL MICHIGAN * UNTIL 515 PM EDT * AT 443 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO NEAR SHEPHERD...OR ABOUT 5 MILES SOUTH OF MOUNT PLEASANT... MOVING NORTH AT 25 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... MOUNT PLEASANT AROUND 450 PM EDT BEAL CITY...DELWIN AROUND 500 PM EDT ROSEBUSH AROUND 505 PM EDT LOOMIS AROUND 515 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. JK/BM
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 2:03 PM EDT | Tornado Warning | GRR | Eaton | 27 min |
| May 21, 2:52 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Kent | 38 min |
| May 21, 3:02 PM EDT | Tornado Warning | GRR | Clinton | 28 min |
| May 21, 3:21 PM EDT | Tornado Warning | GRR | Eaton, Ionia | 39 min |
| May 21, 3:30 PM EDT | Tornado Warning | GRR | Kent | 45 min |
| May 21, 3:37 PM EDT | Tornado Warning | GRR | Gratiot | 23 min |
| May 21, 3:57 PM EDT | Tornado Warning | GRR | Gratiot | 18 min |
| May 21, 4:14 PM EDT | Tornado Warning | GRR | Gratiot, Isabella | 31 min |
| May 21, 4:57 PM EDT | Tornado Warning | GRR | Gratiot | 18 min |
| May 21, 5:15 PM EDT | Tornado Warning | GRR | Clare, Isabella | 30 min |
Nearby
Tornado Warnings in Michigan, 2001Every tornado warning in 2001Tornadoes in 2001
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.