Alert archive / Minnesota / Tornado Warnings in 1987

Tornado Warning 1, NWS Grand Forks, ND

May 16, 1987Beltrami County, Minnesota

NWS Grand Forks, ND issued this tornado warning at May 16, 1987, 5:07 PM CDT for Beltrami County, Minnesota. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
May 16, 1987, 5:07 PM CDT (22:07 UTC)
Expired
May 16, 1987, 6:00 PM CDT
In force
53 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

County Beltrami County, MN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 10.1 hours before the alert went out and 138 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.

Skew-T log-pSkew-T log-p diagram, International Fa, MN at 12:00Z on 1987-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 12:00Z on 1987-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2936 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
183 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMSP 162207
TORINL
MNC007-162300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN
ISSUED BY MINNEAPOLIS MN
507 PM CDT SAT MAY 16 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 600 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

NORTH CENTRAL MINNESOTA...SOUTHERN BELTRAMI


AT.....500 PM A FUNNEL WAS REPORTED OVER WASHEISH ON THE EAST
SHORE OFP UPPER RED LAKE MOVING SOUTH SOUTHWEST.

IF YOU ARE IN THE PATH OF THIS TORNADO..GO TO A BASEMENT SHELTER OR
A CENTRAL INTERIOR ROOM ON THE LOWEST FLOOR. ABANDON CARS AND
MOBILE HOMES FOR A REINFORCED BUILDING.

PAULSON

Nearby

Tornado Warnings in Minnesota, 1987Every tornado warning in 1987Tornadoes in 1987

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.