Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 314, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 23, 1998, 4:40 AM CDT for Meeker County, Minnesota. It was in force for 60 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 23, 1998, 4:40 AM CDT (09:40 UTC)
- Expired
- Aug 23, 1998, 5:40 AM CDT
- In force
- 60 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Meeker County, MN
The radar
The Minneapolis radar (KMPX), 82 km from the middle of the area, began a volume at 09:59 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 nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 9.7 hours before the alert went out and 79 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
- 2973 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 823 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 255 m²/s²
- 0-3 km storm-relative helicity
- 351 m²/s²
- Significant tornado parameter
- 4.3
- Supercell composite
- 21.4
The text
As transmitted, in the capitals the NWS used until 2016.
078
WUUS1 KMSP 230942 RRA
SVRMSP
MNC093-231040-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
440 AM CDT SUN AUG 23 1998
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES/CHANHASSEN HAS
ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MEEKER COUNTY IN CENTRAL MINNESOTA
* UNTIL 540 AM CDT
* AT 445 AM CDT...DOPPLER RADAR INDICATED A SEVERE STORM WITH
DAMAGING WINDS NEAR WILLMAR. THE STORM WAS MOVING EAST AT 50 MPH.
* SOME LOCATIONS AFFECTED
GROVE CITY
LITCHFIELD
CROW RIVER
MANANNAH
WATKINS
THIS IS A DANGEROUS STORM...WITH A HISTORY OF DAMAGING WINDS. STAY
INDOORS AWAY FROM WINDOWS.
MBKThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 7:30 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin | 65 min |
| Aug 22, 7:57 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Scott | 63 min |
| Aug 22, 8:10 PM CDT | Tornado Warning | MPX | Dakota, Scott | 30 min |
| Aug 22, 8:35 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin, Ramsey, Washington | 45 min |
| Aug 22, 8:35 PM CDT | Severe Thunderstorm Warning | MPX | Carver | 45 min |
| Aug 22, 8:40 PM CDT | Tornado Warning | MPX | Dakota | 65 min |
| Aug 22, 9:14 PM CDT | Flash Flood Warning | MPX | Carver, Dakota, Hennepin, Scott | 2 hr |
| Aug 22, 9:19 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 51 min |
| Aug 22, 9:27 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Scott | 63 min |
| Aug 22, 9:51 PM CDT | Flash Flood Warning | MPX | Scott | 69 min |
| Aug 23, 3:15 AM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle | 45 min |
| Aug 23, 3:33 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Swift | 42 min |
| Aug 23, 4:07 AM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi | 58 min |
| Aug 23, 4:10 AM CDT | Severe Thunderstorm Warning | MPX | Yellow Medicine | 35 min |
| Aug 23, 4:14 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Swift | 16 min |
| Aug 23, 5:02 AM CDT | Severe Thunderstorm Warning | MPX | Wright | 43 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.