Alert archive / Minnesota / Tornado Warnings in 2001
Tornado Warning 4, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at May 1, 2001, 5:37 PM CDT for Waseca County, Minnesota. It was in force for 23 min. 3 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- May 1, 2001, 5:37 PM CDT (22:37 UTC)
- Expired
- May 1, 2001, 6:00 PM CDT
- In force
- 23 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Waseca County, MN
The radar
The Minneapolis radar (KMPX), 92 km from the middle of the area, began a volume at 22:37 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 |
|---|---|---|---|
| May 1, 5:46 PM CDT | Hail 1 | Waseca, MN | |
| May 1, 5:50 PM CDT | Hail 1.25 | Waseca, MN | |
| May 1, 6:05 PM CDT | Hail 1.5 | Waseca, MN |
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 |
|---|---|---|---|
| May 1, 3:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 10.6 hours before the alert went out and 92 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
- 771 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KMPX 012238 TORMSP MNC161-012300- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 537 PM CDT TUE MAY 1 2001 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * TORNADO WARNING FOR... WASECA COUNTY IN SOUTH CENTRAL MINNESOTA * UNTIL 600 PM CDT * AT 537 PM CDT...RADAR INDICATED A DEVELOPING TORNADO 4 MILES SOUTH OF WASECA...MOVING EAST AT 25 MPH. * SOME LOCATIONS IN THE SPATH OF THIS TORNADO INCLUDE... WASECA. GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR! LAT...LON 4406 9368 4389 9355 4393 9342 4419 9353
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 7:29 PM CDT | Severe Thunderstorm Warning | MPX | Martin | 61 min |
| May 1, 4:24 PM CDT | Severe Thunderstorm Warning | MPX | Carver, McLeod, Sibley | 51 min |
| May 1, 4:36 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Faribault | 39 min |
| May 1, 4:36 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur | 39 min |
| May 1, 4:50 PM CDT | Tornado Warning | MPX | Blue Earth | 25 min |
| May 1, 4:55 PM CDT | Tornado Warning | MPX | Carver | 35 min |
| May 1, 5:06 PM CDT | Severe Thunderstorm Warning | MPX | Waseca | 39 min |
| May 1, 5:13 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin | 47 min |
| May 1, 5:18 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 42 min |
| May 1, 5:21 PM CDT | Tornado Warning | MPX | Anoka, Hennepin | 24 min |
| May 1, 5:27 PM CDT | Severe Thunderstorm Warning | MPX | Steele | 48 min |
| May 1, 5:35 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Ramsey, Washington | 55 min |
| May 1, 5:49 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago | 41 min |
| May 1, 6:03 PM CDT | Tornado Warning | MPX | Steele, Waseca | 42 min |
| May 1, 6:31 PM CDT | Severe Thunderstorm Warning | MPX | Washington | 29 min |
Nearby
Tornado Warnings in Minnesota, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.