Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 299, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 19, 1998, 4:08 PM CDT for Morrison County, Minnesota. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 19, 1998, 4:08 PM CDT (21:08 UTC)
- Expired
- Aug 19, 1998, 4:55 PM CDT
- In force
- 47 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Morrison County, MN
The radar
The Minneapolis radar (KMPX), 141 km from the middle of the area, began a volume at 21:08 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.
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 19, 3:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.1 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
- 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.
788
WUUS1 KMSP 192109 RRA
SVRMSP
MNC097-192155-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
408 PM CDT WED AUG 19 1998
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES/CHANHASSEN HAS
ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN MORRISON COUNTY IN CENTRAL MINNESOTA
* UNTIL 455 PM CDT
* AT 408 PM CDT...DOPPLER RADAR INDICATED A SEVERE STORM WITH LARGE
HAIL NEAR CAMP RIPLEY. THE STORM WAS MOVING EAST AT 20 MPH.
* SOME LOCATIONS AFFECTED
CAMP RIPLEY
CUSHING
RANDALL
FISH TRAP LAKE
THIS IS A DANGEROUS STORM...WITH LARGE HAIL. STAY INDOORS AWAY
FROM WINDOWS.
EDWARDSThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 3:10 PM CDT | Severe Thunderstorm Warning | MPX | Douglas | 35 min |
| 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, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.