Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 123, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 6, 1994, 3:33 PM CDT for Swift County, Minnesota. It was in force for 42 min.
The area
The counties it named.
The facts
- Issued
- Jul 6, 1994, 3:33 PM CDT (20:33 UTC)
- Expired
- Jul 6, 1994, 4:15 PM CDT
- In force
- 42 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Swift County, MN
The nearest sounding before it
Aberdeen, SD (KHON), launched 12:00Z, 8.6 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
- 1112 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 576 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 141 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTC 062033 SVRSTC MNC151-062130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 333 PM CDT WED JUL 6 1994 THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 430 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL MINNESOTA ...EASTERN SWIFT COUNTY AT 325 PM RADAR SHOWED A SEVERE THUNDERSTORM IN CENTRAL SWIFT COUNTY MOVING EAST AT 10 MPH. THIS DANGEROUS STORM PRODUCED HAIL TO 3/4 INCH NEAR BENSON AT AROUND 3 PM. THIS STORM CAN PRODUCE VERY HEAVY RAIN AND MAY CAUSE LOCAL STREET FLOODING AND PONDING OF WATER ON ROADWAYS. PERSONS IN DEGRAFF, MURDOCK AND KERHOVEN CAN EXPECT THIS STORM BY 4 PM. IF YOU OUTSIDE IN THE OPEN...YOU SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS. DO NOT USE ELECTRICAL APPLIANCES OR THE TELEPHONE UNLESS IT IS AN EMERGENCY. FRASER & 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 6, 1:27 PM CDT, 2 hours 6 minutes before
MNZ042>044-046-048>051-054>058-064-061915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 120 PM CDT WED JUL 6 1994 ...THUNDERSTORMS DEVELOPING IN WEST-CENTRAL MINNESOTA... AT 115 PM RADAR SHOWED THUNDERSTORMS DEVELOPING IN SWIFT COUNTY OF WEST-CENTRAL MINNESOTA. THE THUNDERSTORMS WERE MOVING EAST AT 15 MPH. THESE THUNDERSTORMS MAY PRODUCE BRIEF HEAVY RAIN...FREQUENT LIGHTNING STRIKES AND SMALL HAIL. PERSONS IN SWIFT AND POPE COUNTIES OF WEST-CENTRAL MINNESOTA SHOULD KEEP AN EYE TO THE SKY AND AN EAR TO THE RADIO AND LISTEN FOR ADDITIONAL STATEMENTS. FRASER
Special weather statement, Jul 6, 2:20 PM CDT, 1 hour 13 minutes before
MNZ042>044-046-048>051-054>058-064-062015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 220 PM CDT WED JUL 6 1994 ...THUNDERSTORMS IN WEST-CENTRAL MINNESOTA... AT 215 PM RADAR SHOWED THUNDERSTORMS CONTINUING IN SWIFT COUNTY OF WEST-CENTRAL MINNESOTA. A FEW THUNDERSTORMS HAD ALSO DEVELOPED IN EASTERN CHIPPEWA COUNTY AND SOUTHERN POPE COUNTY. THESE STORMS WERE MOVING TO THE EAST AT 15 MPH. SOME CITIES IN THE PATH OF THESE STORMS INCLUDE CLARA CITY...RAYMOND...DEGRAFF...SWIFT FALLS...AND GILCHRIST. THESE THUNDERSTORMS MAY PRODUCE BRIEF HEAVY RAIN...FREQUENT LIGHTNING STRIKES AND SMALL HAIL. PERSONS IN THE PATH OF THESE STORMS SHOULD BE AWARE OF RAPIDLY CHANGING WEATHER CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR FURTHER UPDATES. PARKIN
Special weather statement, Jul 6, 2:21 PM CDT, 1 hour 12 minutes before
MNZ042>044-046-048>051-054>058-064-062015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 220 PM CDT WED JUL 6 1994 ...THUNDERSTORMS IN WEST-CENTRAL MINNESOTA... AT 215 PM RADAR SHOWED THUNDERSTORMS CONTINUING IN SWIFT COUNTY OF WEST-CENTRAL MINNESOTA. A FEW THUNDERSTORMS HAD ALSO DEVELOPED IN EASTERN CHIPPEWA COUNTY AND SOUTHERN POPE COUNTY. THESE STORMS WERE MOVING TO THE EAST AT 15 MPH. SOME CITIES IN THE PATH OF THESE STORMS INCLUDE CLARA CITY...RAYMOND...DEGRAFF...SWIFT FALLS...AND GILCHRIST. THESE THUNDERSTORMS MAY PRODUCE BRIEF HEAVY RAIN...FREQUENT LIGHTNING STRIKES AND SMALL HAIL. PERSONS IN THE PATH OF TlHESE STORMS SHOULD BE AWARE OF RAPIDLY CHANGING WEATHER CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR FURTHER UPDATES. PARKIN
Local storm report, Jul 6, 3:15 PM CDT, 18 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
315 PM CDT WED JUL 06 1994
PRELIMINARY REPORT FOR 6 JUL 94
307 PM NUMEROUS REPORTS OF HAIL...PEA TO DIME SIZE (3/4 INCH)
AND ZERO VISIBILITY IN RAIN AT AND IN THE VICINITY OF
BENSON IN SWIFT COUNTY...30 MILES NORTHWEST OF WILLMAR.
FRASERLocal storm report, Jul 6, 3:21 PM CDT, 12 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
315 PM CDT WED JUL 06 1994
PRELIMINARY REPORT FOR 6 JUL 94
307 PM NUMEROUS REPORTS OF HAIL...PEA TO DIME SIZE (3/4 INCH)
AND ZERO VISIBILITY IN RAIN AT AND IN THE VICINITY OF
BENSON IN SWIFT COUNTY...30 MILES NORTHWEST OF WILLMAR.
FRASERThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 8:41 PM CDT | Severe Thunderstorm Warning | MPX | Swift | 49 min |
| 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 |
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.