Alert archive / Minnesota / Tornado Warnings in 1999
Tornado Warning 16, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Jul 25, 1999, 5:49 PM CDT for Morrison County, Minnesota. It was in force for 26 min. 3 reports 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
- Jul 25, 1999, 5:49 PM CDT (22:49 UTC)
- Expired
- Jul 25, 1999, 6:15 PM CDT
- In force
- 26 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Morrison County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 25, 6:10 PM CDT | Tornado F0 | Little Falls, MN | Large trees down. |
| Jul 25, 6:11 PM CDT | Hail 1 | Little Falls, MN | |
| Jul 25, 6:22 PM CDT | Hail 2.5 | Royalton, 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 |
|---|---|---|---|
| Jul 25, 3:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 10.8 hours before the alert went out and 139 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
- 2541 J/kg
- Mixed-layer CIN
- -118 J/kg
- Mixed-layer LCL
- 1075 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMPX 252250 TORMSP MNC097-252315- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 549 PM CDT SUN JUL 25 1999 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN MORRISON COUNTY IN CENTRAL MINNESOTA * UNTIL 615 PM CDT * AT 549 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A POSSIBLE TORNADO 2 MILES NORTH OF UPSALA...OR ABOUT 14 MILES SOUTHWEST OF LITTLE FALLS...MOVING EAST AT 35 MPH. * SOME LOCATIONS IN THE PATH OF THIS TORNADO INCLUDE... LITTLE FALLS UPSALA SWANVILLE SOBIESKI FLENSBURG ELMDALE GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 5:10 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 50 min |
| Jul 25, 6:13 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Morrison | 47 min |
| Jul 25, 6:45 PM CDT | Severe Thunderstorm Warning | MPX | Pope, Stearns | 45 min |
Nearby
Tornado Warnings in Minnesota, 1999Every tornado warning in 1999Tornadoes in 1999
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.