Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 25, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Mar 29, 1998, 7:45 PM CST for Blue Earth County, Waseca County, Minnesota. It was in force for 45 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
- Mar 29, 1998, 7:45 PM CST (01:45 UTC)
- Expired
- Mar 29, 1998, 8:30 PM CST
- In force
- 45 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Blue Earth County, MN, Waseca County, MN
The radar
The Minneapolis radar (KMPX), 94 km from the middle of the area, began a volume at 01:46 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 |
|---|---|---|---|
| Mar 29, 2:00 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 1.8 hours before the alert went out and 93 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
- 625 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 529 m above ground
- 0-6 km bulk shear
- 79 kt
- 0-1 km storm-relative helicity
- 499 m²/s²
- 0-3 km storm-relative helicity
- 565 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
147
WUUS1 KMSP 300148 RRA
SVRMSP
MNC013-161-300230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
745 PM CST SUN MAR 29 1998
* SEVERE THUNDERSTORM WARNING FOR
EASTERN BLUE EARTH COUNTY - SOUTH CENTRAL MINNESOTA
WASECA COUNTY - SOUTH CENTRAL MINNESOTA
* UNTIL 830 PM CST
* SOME LOCATIONS AFFECTED
ST CLAIR
PEMBERTON
ALMA CITY
JANESVILLE
* AT 845 PM CST DOPPLER RADAR INDICATED A SEVERE STORM 10 MILES
SOUTHEAST OF MANKATO. THE STORM WAS MOVING EAST/NORTHEAST AT 25
MPH.
DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS.
TIPTONWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Mar 29, 7:40 PM CST, 5 minutes before
MNZ041>045-047>070-073>078-082>085-091>093-300300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 740 PM CST SUN MAR 29 1998 THE SEVERE THUNDERSTORM WATCH AND TORNADO WATCH FOR A LARGE PORTION OF CENTRAL AND SOUTHERN MINNESOTA IS NO LONGER IN EFFECT. HOWEVER A NEW TORNADO WATCH HAS BEEN POSTED FOR A CORNER OF SOUTHEAST MINNESOTA. ONLY A FEW COUNTIES OF SOUTHEAST MINNESOTA WILL REMAIN UNDER THIS NEW TORNADO WATCH THROUGH THIS EVENING. THE WATCH ALSO COVERS PORTIONS OF WEST CENTRAL WISCONSIN...INCLUDING EAU CLAIRE. PERSONS IN THE TORNADO WATCH SHOULD REMAIN ALERT FOR POSSIBLE WARNINGS. THE SEVERE THUNDERSTORM WATCH IS NO LONGER IN FOR THE TWIN CITIES. EDWARDS
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 6:08 PM CST | Severe Thunderstorm Warning | MPX | Scott | 52 min |
| Mar 29, 6:08 PM CST | Tornado Warning | MPX | Le Sueur, Rice | 57 min |
| Mar 29, 6:25 PM CST | Tornado Warning | MPX | Dakota | 50 min |
| Mar 29, 7:07 PM CST | Severe Thunderstorm Warning | MPX | Goodhue | 63 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.