Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 283, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 18, 1998, 11:25 PM CDT for Le Sueur County, Rice County, Waseca County, Minnesota. It was in force for 50 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 18, 1998, 11:25 PM CDT (04:25 UTC)
- Expired
- Jul 19, 1998, 12:15 AM CDT
- In force
- 50 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Le Sueur County, MN, Rice County, MN, Waseca County, MN
The radar
The Minneapolis radar (KMPX), 67 km from the middle of the area, began a volume at 04:25 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 |
|---|---|---|---|
| Jul 18, 11:30 PM CDT | Thunderstorm Wind 50 | Dundas, MN | Power lines blown down. Estimated windspeed. |
| Jul 18, 11:30 PM CDT | Thunderstorm Wind 50 | Faribault, MN | Trees blown down. Estimated windspeed. |
| Jul 18, 11:45 PM CDT | Thunderstorm Wind 50 | Elysian, MN | Large branches and a power line down. Estimated windspeed. |
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 18, 10:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 4.4 hours before the alert went out and 67 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
- 16 J/kg
- Mixed-layer CIN
- -548 J/kg
- Mixed-layer LCL
- 2130 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- -72 m²/s²
- 0-3 km storm-relative helicity
- 450 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 190425
SVRMSP
MNC079-131-161-190515-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1125 PM CDT SAT JUL 18 1998
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES/CHANHASSEN HAS
ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA
RICE COUNTY IN EAST CENTRAL MINNESOTA
WASECA COUNTY IN SOUTH CENTRAL MINNESOTA
* UNTIL 1215 AM CDT
* AT 1122 PM CDT...DOPPLER RADAR INDICATED A SEVERE STORM WITH
DAMAGING WINDS FROM 10 MILES NORTHEAST OF MANKATO...TO 10 MILES
SOUTH OF MANKATO. THE STORM WAS MOVING NORTHEAST AT 40 MPH.
TREES WERE REPORTED DOWN IN MANKATO AT 1120 PM.
* SOME LOCATIONS AFFECTED
WATERVILLE
ELLYSIAN
MORRISTOWN
KILKENNY
FARIBAULT
THIS IS A DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS.
TDK
&The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 9:05 PM CDT | Tornado Warning | MPX | Stevens | 60 min |
| Jul 18, 9:47 PM CDT | Severe Thunderstorm Warning | MPX | Redwood | 33 min |
| Jul 18, 10:03 PM CDT | Severe Thunderstorm Warning | MPX | Stevens, Swift | 62 min |
| Jul 18, 10:06 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Watonwan | 49 min |
| Jul 18, 11:09 PM CDT | Severe Thunderstorm Warning | MPX | Faribault | 46 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.