Alert archive / Minnesota / Tornado Warnings in 1991
Tornado Warning 9, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jul 5, 1991, 7:41 PM CDT for Koochiching County, Minnesota. It was in force for 34 min.
The area
The counties it named.
The facts
- Issued
- Jul 5, 1991, 7:41 PM CDT (00:41 UTC)
- Expired
- Jul 5, 1991, 8:15 PM CDT
- In force
- 34 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Koochiching County, MN
The nearest sounding before it
International Fa, MN (KINL), launched 00:00Z, 0.7 hours before the alert went out and 51 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
- 785 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 734 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 254 m²/s²
- 0-3 km storm-relative helicity
- 319 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 6.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KINL 060041 TORINL MNC071-060115- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN 741 PM CDT FRI JUL 5 1991 THE NATIONAL WEATHER SERVICE IN INTERNATIONAL FALLS HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 815 PM CDT FOR PERSONS IN THE FOLLOWING LOCATION... IN NORTH CENTRAL MINNESOTA ...NORTHEASTERN KOOCHICHING COUNTY AT 738 PM CDT...A FUNNEL WAS SIGHTED 10 MILES WEST OF INTERNATIONAL FALLS MOVING EAST SOUTHEAST AT 30 MPH. THIS CITY OF INTERNATIONAL FALLS IS IN THE PATH OF THIS STORM. OTHER CITES IN THE PATH ARE RANIER...RAY...AND ERICSBURG. THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF AVAILABLE. OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT. NNNN
What forecasters said that day
The local office's own words before this tornado 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, 4:31 PM CDT, 3 hours 10 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-052230- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 425 PM CDT FRI JUL 5 1991 ...A TORNADO WATCH IS IN EFFECT FOR MUCH OF NORTHERN AND WESTERN MINNESOTA AND NORTHEAST SOUTH DAKOTA UNTIL 11 PM CDT... AT 425 PM CDT A THUNDERSTORM...WITH VERY HEAVY RAIN WAS LOCATED OVER NORTHWEST MINNESOTA...40 MILES NORTH NORTHEAST OF GRAND FORKS NORTH DAKOTA...15 MILES WEST OF LAKE BRONSON IN KITTSON COUNTY OF NORTHWEST MINNESOTA. THIS THUNDERSTORM WAS MOVING SOUTHEAST AT 35 MPH AND WILL MOVE ACROSS KITTSON AND INTO MARSHALL COUNTY OF NORTHWEST MINNESOTA BY 530 PM. OTHER WIDELY SCATTERED THUNDERSTORMS WERE STARTING TO DEVELOP ACORSS NORTHWEST MINNESOTA. THESE THUNDERSTORMS SHOULD ALSO MOVE SOUTHEAST AT 20 TO 30 MPH. PERSONS IN AND NEAR THE WATCH AREA SHOULD REMAIN ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. PLEASE STAY TUNED TO YOUR LOCAL RADIO AND |TV STATIONS FOR LATEST INFORMATION ON THESE THUNDERSTORMS. ANDERSEN
Special weather statement, Jul 5, 5:34 PM CDT, 2 hours 7 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-052330- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 525 PM CDT FRI JUL 5 1991 ...A TORNADO WATCH IS IN EFFECT FOR MUCH OF NORTHERN AND WESTERN MINNESOTA AND NORTHEAST SOUTH DAKOTA UNTIL 11 PM CDT... AT 525 PM CDT A STRONG THUNDERSTORM WAS LOCATED OVER NORTH CENTRAL MINNESOTA...JUST WEST OF NORTHOME MINNESOTA...50 MILES SOUTHWEST OF INTERNATIONAL FALLS MINNESOTA. THIS THUNDERSTORM WAS MOVING EAST AT 30 TO 35 MPH. THIS THUNDERSTORM COULD PRODUCE BRIEF VERY HEAVY RAIN... HAIL AND DAMAGING WINDS AS IT CONTINUES EAST ACROSS NORTH CENTRAL MINNESOTA. ANOTHER THUNDERSTORM...WITH VERY HEAVY RAIN WAS LOCATED OVER NORTHERN HUBBARD COUNTY OF NORTHWEST MINNESOTA AND WAS ALSO MOVING EAST AT 35 MPH AND WILL MOVE INTO THE LEECH LAKE AREA BY 630 PM CDT. OTHER WIDELY SCATTERED THUNDERSTORMS CONTINUED OVER NORTHWEST AND NORTH CENTRAL MINNESOTA. THESE THUNDERSTORMS WERE ALSO MOVING EAST AT 35 MPH. PERSONS IN AND NEAR THE WATCH AREA SHOULD REMAIN ALERT FOR CHANGING WEATHER CONDITIONS. PLEASE STAY TUNED TO YOUR LOCAL RADIO AND TV STATIONS FOR LATEST INFORMATION ON THESE THUNDERSTORMS. ANDERSEN
Special weather statement, Jul 5, 6:35 PM CDT, 1 hour 6 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-060030- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 630 PM CDT FRI JUL 5 1991 ...A TORNADO WATCH IS IN EFFECT FOR MUCH OF NORTHERN AND WESTERN MINNESOTA AND NORTHEAST SOUTH DAKOTA UNTIL 11 PM CDT... AT 630 PM CDT SEVERAL STRONG THUNDERSTORMS WERE LOCATED OVER NORTH CENTRAL MINNESOTA EXTENDING FROM JUST EAST OF BEMIDJI MINNESOTA SOUTHWEST TO 30 MILES WEST OF BRAINERD MINNESOTA WITH THE STROGEST THUNDERSTSORM NEAR WADENA MINNESOTA. THESE THUNDERSTORMS WERE MOVING EAST AT 35 MPH AND COULD PRODUCE BRIEF VERY HEAVY RAIN...HAIL AND DAMAGING WINDS AS THEY CROSS CASS AND WADENA COUNTIES OF NORTH CENTRAL MINNESOTA. OTHER THUNDERSTORMS...SOME WITH HEAVY RAIN CONTINUED OVER NORTHWEST AND NORTH CENTRAL MINNESOTA. THESE THUNDERSTSRMS WERE MOVING EAST AT 30 TO 35 MPH. PERSONS IN AND NEAR THE WATCH AREA SHOULD REMAIN ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. PLEASE STAY TUNED TO YOUR LOCAL RADIO AND TV STATIONS FOR LATEST INFORMATION ON THESE THUNDERSTORMS. ANDERSEN
Special weather statement, Jul 5, 7:32 PM CDT, 9 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-060130- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 730 PM CDT FRI JUL 5 1991 ...A TORNADO WATCH IS IN EFFECT FOR PARTS OF CENTRAL AND NORTHEAST MINNESOTA UNTIL 1 AM CDT SATURDAY MORNING... AT 730 PM CDT SEVERAL STRONG THUNDERSTORMS WERE LOCATED OVER NORTH CENTRAL MINNESOTA EXTENDING FROM JUST WEST OF GRAND RAPIDS MINNESOTA SOUTHWEST TO JUST WEST OF BRAINERD MINNESOTA. THE STRONGEST OF THESE THUNDERSTORMS WERE LOCATED 5 TO 10 MILES NORTHWEST OF BRAINERD MINNESOTA MOVING EAST AT 30 TO 35 MPH. THESE THUNDERSTORMS COULD PRODUCE BRIDF VERY HEAVY RAIN...HAIL AND DAMAGING WINDS AS THEY MOVE EAST ACROSS NORTH CENTRAL MINNESOTA. OTHER THUNDERSTORMS...SOME WITH HEAVY RAIN CONTINUED OVER NORTH CENTRAL AND CENTRAL MINNESOTA. THESE THUNDERSTORMS WERE MOVING EAST AT 30 TO 35 MPH. PERSONS IN AND NEAR THE WATCH AREA SHOULD REMAIN ALERT FOR RAPIDLY CHANGtING WEATHER CONDITIONS. PLEASE STAY TUNED TO YOUR LOCAL RADIO AND TV STATIONS FOR LATEST INFORMATION ON THESE THUNDERSTORMS. ANDERSEN
Nearby
Tornado Warnings in Minnesota, 1991Every tornado warning in 1991Tornadoes in 1991
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.