Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 296, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 19, 1998, 3:10 PM CDT for Douglas County, Minnesota. It was in force for 35 min. 2 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
- Aug 19, 1998, 3:10 PM CDT (20:10 UTC)
- Expired
- Aug 19, 1998, 3:45 PM CDT
- In force
- 35 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Douglas County, MN
The radar
The Minneapolis radar (KMPX), 190 km from the middle of the area, began a volume at 20:12 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 |
|---|---|---|---|
| Aug 19, 3:10 PM CDT | Hail 1.25 | Brandon, MN | |
| Aug 19, 3:44 PM CDT | Thunderstorm Wind 58 | (Axn)Chndlr Fld Alxn, 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 nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 8.2 hours before the alert went out and 188 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
- 585 J/kg
- Mixed-layer CIN
- -256 J/kg
- Mixed-layer LCL
- 475 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 265 m²/s²
- 0-3 km storm-relative helicity
- 317 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
457
WUUS1 KMSP 192011 RRA
SVRMSP
MNC041-192020-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
310 PM CDT WED AUG 19 1998
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES/CHANHASSEN HAS
ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA
* UNTIL 345 PM CDT
* AT 305 PM CDT...DOPPLER RADAR INDICATED A SEVERE STORM JUST
SOUTH OF BRANDON OR 12 MILES NORTHWEST OF ALEXANDRIA. THE STORM WAS
MOVING EAST AT 15 MPH.
* SOME LOCATIONS AFFECTED
BRANDON
GARFIELD
LAKE CARLOS STATE PARK
GOLF BALL SIZE HAIL WAS REPORTED WITH THIS STORM JUST SOUTH OF
BRANDON.
THIS IS A DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS.
JJ
&The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 3:44 PM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope | 61 min |
| Aug 19, 4:00 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 50 min |
| Aug 19, 4:08 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 47 min |
| Aug 19, 5:34 PM CDT | Tornado Warning | MPX | Morrison | 31 min |
| Aug 19, 5:42 PM CDT | Flash Flood Warning | MPX | Pope, Stevens | 2 hr |
| Aug 19, 5:58 PM CDT | Tornado Warning | MPX | Stearns | 32 min |
| Aug 19, 6:30 PM CDT | Severe Thunderstorm Warning | MPX | Stearns | 65 min |
| Aug 19, 6:44 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Swift | 61 min |
| Aug 19, 6:55 PM CDT | Flash Flood Warning | MPX | Swift | 3 hr |
| Aug 19, 6:58 PM CDT | Tornado Warning | MPX | Stearns | 47 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1998Every severe thunderstorm warning 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.