Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 7, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Mar 29, 1998, 3:12 PM CST for Dakota County, Hennepin County, Ramsey County, Minnesota. It was in force for 63 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
- Mar 29, 1998, 3:12 PM CST (21:12 UTC)
- Expired
- Mar 29, 1998, 4:15 PM CST
- In force
- 63 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Dakota County, MN, Hennepin County, MN, Ramsey County, MN
The radar
The Minneapolis radar (KMPX), 28 km from the middle of the area, began a volume at 21:15 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, 3:15 PM CST | Hail 0.88 | Edina, MN | |
| Mar 29, 3:18 PM CST | Hail 0.75 | Burnsville, MN | |
| Mar 29, 3:20 PM CST | Hail 0.75 | St Anthony, 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 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, 9.2 hours before the alert went out and 31 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.
496
WUUS1 KMSP 292115 RRA
SVRMSP
MNC003-037-053-123-292215-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
312 PM CST SUN MAR 29 1998
* SEVERE THUNDERSTORM WARNING FOR
SOUTHERN ANOKA COUNTY - EAST CENTRAL MINNESOTA
NORTHERN DAKOTA COUNTY - EAST CENTRAL MINNESOTA
HENNEPIN COUNTY - EAST CENTRAL MINNESOTA
RAMSEY COUNTY - EAST CENTRAL MINNESOTA
* UNTIL 415 PM CST
* SOME LOCATIONS AFFECTED
MINNEAPOLIS
ST PAUL
EDINA
INVER GROVE HEIGHTS
* AT 312 PM CST DOPPLER RADAR INDICATED A CLUSTER OF SEVERE STORMS
WITH LARGE HAIL OVER THE SOUTHWEST METRO AREA...OR ABOUT
15 MILES SOUTHWEST OF MINNEAPOLIS. THE STORMS WERE MOVING
NORTHEAST AT 35 MPH.
SEVERAL REPORTS OF 1 INCH HAIL HAVE BEEN RECEIVED FROM EDEN
PRAIRIE.
THIS IS A DANGEROUS STORM...WITH LARGE HAIL. STAY INDOORS AWAY
FROM WINDOWS.
MILLER
&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 | 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, 4:21 PM CST | Tornado Warning | MPX | Brown, Watonwan | 64 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
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.