Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 21, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Jul 11, 1994, 2:43 PM CDT for Saint Louis County, Minnesota. It was in force for 47 min.
The area
The counties it named.
The facts
- Issued
- Jul 11, 1994, 2:43 PM CDT (19:43 UTC)
- Expired
- Jul 11, 1994, 3:30 PM CDT
- In force
- 47 min
- Issued by
- NWS Duluth, MN
- Area
- Whole counties
County Saint Louis County, MN
The nearest sounding before it
International Fa, MN (KINL), launched 12:00Z, 7.7 hours before the alert went out and 126 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
- 78 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 574 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KINL 111943 RRA SVRINL MNC137-112030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN 243 PM CDT MON JUL 11 1994 THE NATIONAL WEATHER SERVICE IN INTERNATIONAL FALLS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 330 PM CDT FOR PERSONS IN THE FOLLOWING LOCATION... IN NORTHEAST MINNESOTA ...NORTH ST LOUIS COUNTY AT 240 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 10 MILES EAST OF INTERNATIONAL FALLS...NEAR THE TOWN OF RAINY LAKE... AND WAS MOVING INTO EXTREME NORTHERN ST. LOUIS COUNTY. PERSONS OUTDOORS IN VOYAGEURS NATIONAL PARK...AND ON THE OPEN WATER OF RAINY LAKE AND LAKE KABETOGAMA SHOULD SEEK SAFE SHELTER AND HARBOR IMMEDIATELY. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONAJLLY DO PRODUCE TORNADOES WITH LITTLE ADVANCE WARNING PACKINGHAM 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 11, 2:35 PM CDT, 8 minutes before
MNZ010-011-112030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN 235 PM CDT MON JUL 11 1994 ...STRONG THUNDERSTORM MOVING THROUGH INTERNATIONAL FALLS... AT 230 PM CDT...AN ISOLATED STRONG THUNDERSTORM HAD DEVELOPED NEAR INTERNATIONAL FALLS. SEVERAL REPORTS OF MARBLE SIZE HAIL WERE RECEIVED FROM SPOTTERS IN INTERNATIONAL FALLS. IN ADDITION...VERY HEAVY DOWNPOURS WERE OCCURRING NEAR DOWNTOWN. THIS THUNDERSTORM WAS MOVING TO THE EAST-SOUTHEAST AT 30 MPH AND SHOULD AFFECT VOYAGEURS NATIONAL PARK...RAINY LAKE...LAKE KABETOGAMA THROUGH 330 PM. THE TOWN OF RAINY LAKE WILL ALSO ENCOUNTER THIS STORM. VERY HEAVY RAIN...SMALL HAIL...GUSTY WINDS TO 45 MPH AND FREQUENT LIGHTNING ARE ALL POSSIBLE WITH THIS THUNDERSTORM. PERSONS OUTDOORS OR ON RAINY LAKE...OR LAKE KABETOGAMA SHOULD BE PREPARED TO MOVE INDOORS AND INTO SAFE SHELTER IMMEDIATELY. SOME MINOR STREET FLOODING ALSO OCCURRED WITH THIS STORM. REMEMBER...DO NOT DRIVE INTO PLACES WHERE WATER COVERS THE ROAD...IT MAY BE HIDING A WASHOUT. PACKINGHAM NNNN
Special weather statement, Jul 11, 2:35 PM CDT, 8 minutes before
MNZ010-011-112030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN 235 PM CDT MON JUL 11 1994 ...STRONG THUNDERSTORM MOVING THROUGH INTERNATIONAL FALLS... AT 230 PM CDT...AN ISOLATED STRONG THUNDERSTORM HAD DEVELOPED NEAR INTERNATIONAL FALLS. SEVERAL REPORTS OF MARBLE SIZE HAIL WERE RECEIVED FROM SPOTTERS IN INTERNATIONAL FALLS. IN ADDITION...VERY HEAVY DOWNPOURS WERE OCCURRING NEAR DOWNTOWN. THIS THUNDERSTORM WAS MOVING TO THE EAST-SOUTHEAST AT 30 MPH AND SHOULD AFFECT VOYAGEURS NATIONAL PARK...RAINY LAKE...LAKE KABETOGAMA THROUGH 330 PM. THE TOWN OF RAINY LAKE WILL ALSO ENCOUNTER THIS STORM. VERY HEAVY RAIN...SMALL HAIL...GUSTY WINDS TO 45 MPH AND FREQUENT LIGHTNING ARE ALL POSSIBLE WITH THIS THUNDERSTORM. PERSONS OUTDOORS OR ON RAINY LAKE...OR LAKE KABETOGAMA SHOULD BE PREPARED TO MOVE INDOORS AND INTO SAFE SHELTER IMMEDIATELY. SOME MINOR STREET FLOODING ALSO OCCURRED WITH THIS STORM. REMEMBER...DO NOT DRIVE INTO PLACES WHERE WATER COVERS THE ROAD...IT MAY BE HIDING A WASHOUT. PACKINGHAM NNNN
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.