Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 117, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 5, 1994, 8:41 PM CDT for Swift County, Minnesota. It was in force for 49 min.
The area
The counties it named.
The facts
- Issued
- Jul 5, 1994, 8:41 PM CDT (01:41 UTC)
- Expired
- Jul 5, 1994, 9:30 PM CDT
- In force
- 49 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Swift County, MN
The nearest sounding before it
Aberdeen, SD (KHON), launched 00:00Z, 1.7 hours before the alert went out and 218 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
- 1539 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1589 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 4.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KSTC 060141 RRA SVRSTC MNC151-060230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 841 PM CDT TUE JUL 5 1994 THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 930 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL MINNESOTA ...SWIFT COUNTY INCLUDING THE CITIES OF BENSON...DANVERS AND MURDOCK. AT 835 PM RADAR SHOWED A SEVERE THUNDERSTORM LOCATED 10 MILES SOUTHWEST OF BENSON IN WEST CENTRAL MINNESOTA MOVING EAST AT 20 MPH. THIS STORM WILL MOVE INTO BENSON BY 900 PM AND INTO MURDOCK BY 915 PM. IF OUTSIDE..FIND A STRONG BUILDING. DO NOT SEEK SHELTER UNDER TREES. STAY INDOORS AWAY FROM WINDOWS. DO NOT USE ELECTRICAL APPLIANCES. NNNN
What 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, Jul 5, 8:30 PM CDT, 11 minutes before
MNZ042>044-046-048>051-054>058-064-060130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 830 PM CDT TUE JUL 5 1994 ...STRONG THUNDERSTORMS DEVELOPING IN WEST-CENTRAL MINNESOTA... AT 825 PM RADAR SHOWED A STRONG THUNDERSTORM DEVELOPING IN WEST SWIFT COUNTY ABOUT 15 MILES WEST OF BENSON. THIS STORM WAS MOVING EAST AT 25 MPH AND SHOULD BE IN THE DANVERS/BENSON AREAS BY 9 PM. THIS THUNDERSTORM CAN PRODUCE HEAVY RAIN...HAIL...FREQUENT LIGHTNING STRIKES AND GUSTY WINDS. PERSONS IN SWIFT COUNTY SHOULD KEEP AN EYE TO THE SKY AND SEEK SHELTER IF THREATENING WEATHER APPROACHES. FRASER
Special weather statement, Jul 5, 8:31 PM CDT, 10 minutes before
MNZ042>044-046-048>051-054>058-064-060130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 830 PM CDT TUE JUL 5 1994 ...STRONG THUNDERSTORMS DEVELOPING IN WEST-CENTRAL MINNESOTA... AT 825 PM RADAR SHOWED A STRONG THUNDERSTORM DEVELOPING IN WEST SWIFT COUNTY ABOUT 15 MILES WEST OF BENSON. THIS STORM WAS MOVING EAST AT 25 MPH AND SHOULD BE IN THE DANVERS/BENSON AREAS BY 9 PM. THIS THUNDERSTORM CAN PRODUCE HEAVY RAIN...HAIL...FREQtUENT LIGHTNING STRIKES AND GUSTY WINDS. PERSONS IN SWIFT COUNTY SHOULD KEEP AN EYE TO THE SKY AND SEEK SHELTER IF THREATENING WEATHER APPROACHES. FRASER
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 9:13 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 47 min |
| Jul 5, 9:37 PM CDT | Severe Thunderstorm Warning | MPX | Swift | 38 min |
| Jul 5, 10:02 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 58 min |
| Jul 5, 10:22 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 53 min |
| Jul 6, 1:55 AM CDT | Flash Flood Warning | MPX | Goodhue | 3 hr |
| Jul 6, 2:39 PM CDT | Severe Thunderstorm Warning | MPX | Swift | 51 min |
| Jul 6, 3:33 PM CDT | Severe Thunderstorm Warning | MPX | Swift | 42 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1994Every severe thunderstorm warning in 1994
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.