Alert archive / Minnesota / Tornado Warnings in 1998
Tornado Warning 4, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Mar 29, 1998, 4:21 PM CST for Brown County, Watonwan County, Minnesota. It was in force for 64 min. 4 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
- Mar 29, 1998, 4:21 PM CST (22:21 UTC)
- Expired
- Mar 29, 1998, 5:25 PM CST
- In force
- 64 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Brown County, MN, Watonwan County, MN
The radar
The Minneapolis radar (KMPX), 120 km from the middle of the area, began a volume at 22:22 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 |
|---|---|---|---|
| Mar 29, 4:28 PM CST | Tornado F4 | Darfur, MN | Tornado moving through southern Brown county brushed extreme northwest Watonwan county. See Brown county narrative. |
| Mar 29, 4:30 PM CST | Hail 1 | Springfield, MN | |
| Mar 29, 4:30 PM CST | Hail 1.25 | Leavenworth, MN | |
| Mar 29, 4:30 PM CST | Tornado F4 | Comfrey, MN | Tornado began 7 miles east of Avoca in Murray county, continued through Cottonwood, Brown, extreme Northwest Watonwan, Northwest Blue Earth, and finally lifted off 4 miles east of Courtland in Nicollet county. Total storm track was 67 miles. The tornado rippe |
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 |
|---|---|---|---|
| Mar 29, 2:00 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 10.4 hours before the alert went out and 118 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
- 551 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 251 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMSP 292221
TORMSP
MNC015-165-292325-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
421 PM CST SUN MAR 29 1998
* TORNADO WARNING FOR
BROWN COUNTY - SOUTH CENTRAL MINNESOTA
WATONWAN COUNTY - SOUTH CENTRAL MINNESOTA
* UNTIL 525 PM CST
* SOME LOCATIONS AFFECTED
COMFREY
DARFUR
SVEADAHL
DOTSON
* AT 430 PM CST LAW ENFORCEMENT REPORTED A TORNADO IN RURAL AREAS
NORTH OF DELFT OR ABOUT 20 MILES WEST OF ST. JAMES. THE STORM
WAS MOVING EAST TO NORTHEAST AT 35 MPH. 2 TO 3 INCH SIZE HAIL
HAS ALSO BEEN REPORTED WITH THIS THUNDERSTORM.
A TORNADO IS ON THE GROUND! TAKE SHELTER NOW!
MBK
&The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 2:27 PM CST | Severe Thunderstorm Warning | MPX | Nicollet, Sibley | 48 min |
| Mar 29, 2:43 PM CST | Severe Thunderstorm Warning | MPX | McLeod, Meeker, Wright | 47 min |
| Mar 29, 2:47 PM CST | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 48 min |
| Mar 29, 2:52 PM CST | Severe Thunderstorm Warning | MPX | Carver | 48 min |
| Mar 29, 2:52 PM CST | Tornado Warning | MPX | Scott | 38 min |
| Mar 29, 3:00 PM CST | Tornado Warning | MPX | Freeborn | 35 min |
| Mar 29, 3:07 PM CST | Severe Thunderstorm Warning | MPX | Wright | 33 min |
| Mar 29, 3:12 PM CST | Severe Thunderstorm Warning | MPX | Dakota, Hennepin, Ramsey | 63 min |
| Mar 29, 3:12 PM CST | Severe Thunderstorm Warning | MPX | Anoka | 63 min |
| Mar 29, 3:18 PM CST | Severe Thunderstorm Warning | MPX | Anoka, Sherburne | 42 min |
| Mar 29, 3:23 PM CST | Severe Thunderstorm Warning | MPX | Freeborn, Steele | 37 min |
| Mar 29, 3:32 PM CST | Severe Thunderstorm Warning | MPX | Dakota, Washington | 63 min |
| Mar 29, 3:32 PM CST | Severe Thunderstorm Warning | MPX | Goodhue | 63 min |
| Mar 29, 3:39 PM CST | Severe Thunderstorm Warning | MPX | Carver, Sibley | 36 min |
| Mar 29, 3:43 PM CST | Severe Thunderstorm Warning | MPX | Chisago, Isanti | 47 min |
| Mar 29, 4:28 PM CST | Severe Thunderstorm Warning | MPX | Scott | 47 min |
| Mar 29, 4:56 PM CST | Tornado Warning | MPX | Blue Earth, Nicollet | 59 min |
| Mar 29, 5:23 PM CST | Tornado Warning | MPX | Le Sueur | 52 min |
| Mar 29, 5:47 PM CST | Tornado Warning | MPX | Blue Earth, Nicollet | 48 min |
Nearby
Tornado Warnings in Minnesota, 1998Every tornado warning in 1998Tornadoes in 1998
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.