Alert archive / Minnesota / Tornado Warnings in 1999
Tornado Warning 24, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Aug 9, 1999, 7:03 PM CDT for Goodhue County, Minnesota. It was in force for 42 min. 1 report 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
- Aug 9, 1999, 7:03 PM CDT (00:03 UTC)
- Expired
- Aug 9, 1999, 7:45 PM CDT
- In force
- 42 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Goodhue County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 9, 7:08 PM CDT | Tornado F0 | Welch, MN | Brief touchdown in wooded area. |
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 |
|---|---|---|---|
| Aug 9, 6:30 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 0.1 hours before the alert went out and 85 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
- 1808 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 733 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 291 m²/s²
- 0-3 km storm-relative helicity
- 301 m²/s²
- Significant tornado parameter
- 2.4
- Supercell composite
- 13.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMPX 100004 RRA TORMSP MNC049-100045- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 703 PM CDT MON AUG 9 1999 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * TORNADO WARNING FOR... GOODHUE COUNTY IN SOUTHEAST MINNESOTA * UNTIL 745 PM CDT * AT 703 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 10 MILES WEST OF RED WING...MOVING EAST AT 30 MPH. * SOME LOCATIONS IN THE8 PATH OF THIS TORNADO INCLUDE... RED WING AND WELCH. IF YOU ARE IN A MOBILE HOME...ABANDON IT AND GO TO A NEARBY STURDY BUILDING. AS A LAST RESORT...LIE FLAT IN A DITCH AND COVER YOUR HEAD!
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 7:07 PM CDT | Tornado Warning | MPX | Rice | 33 min |
| Aug 9, 7:14 PM CDT | Tornado Warning | MPX | Le Sueur | 31 min |
| Aug 9, 7:37 PM CDT | Tornado Warning | MPX | Rice, Steele | 38 min |
| Aug 9, 7:42 PM CDT | Tornado Warning | MPX | Goodhue | 33 min |
| Aug 9, 8:14 PM CDT | Tornado Warning | MPX | Steele | 31 min |
| Aug 9, 8:14 PM CDT | Tornado Warning | MPX | Goodhue | 31 min |
| Aug 9, 8:18 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 57 min |
| Aug 9, 8:36 PM CDT | Tornado Warning | MPX | Freeborn | 39 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.