Alert archive / Montana / Tornado Warnings in 1986
Tornado Warning 2, NWS Billings, MT
NWS Billings, MT issued this tornado warning at Jun 8, 1986, 3:35 PM MDT for Musselshell County, Yellowstone County, Montana. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Jun 8, 1986, 3:35 PM MDT (21:35 UTC)
- Expired
- Jun 8, 1986, 4:30 PM MDT
- In force
- 55 min
- Issued by
- NWS Billings, MT
- Area
- Whole counties
Counties Musselshell County, MT, Yellowstone County, MT
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
Great_falls, MT (KTFX), launched 12:00Z, 9.6 hours before the alert went out and 221 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3596 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 8 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 KBIL 082136 TORBIL MTC065-111-082230- BULLETIN - IMMEDIATE BROADCAST REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BILLINGS MT 335 PM MDT SUN JUN 8 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 430 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF MONTANA...SOUTHERN MUSSELSHELL...NORTHERN CENTRAL YELLOWSTONE...CITY OF BILLINGS AND CITY OF ROUNDUP A FUNNEL CLOUD WAS SIGHTED BY THE PUBLIC AT 325 PM MDT THIS SUNDAY AFTERNOON 20 MILES NORTHWEST OF BILLINGS MONTANA. THIS FUNNEL CLOUD WAS NOT TOUCHING THE GROUND. THE BILLINGS MONTANA RADAR INDICATES INTENSE THUNDERSTORM CELLS IN THAT AREA. THESE STORMS CAN AND OFTEN DO PRODUCE TORNADOES ON VERY SHORT NOTICE. THIS STORM IS ACCOMPANIED BY INTENSE LIGHTNING AND STRONG GUSTY WINDS. IF THREATENING WEATHER APPROACHES GO TO A SAFE PLACE IMMEDIATELY. WHEN IT IS SAFE PLEASE ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR SEVERE WEATHER REPORTS TO THE NEAREST ?NATIONAL WEATHER SERVICE OFFICE, OR CALL THE NATIONAL WEATHER SERVICE AT BILLINGS MONTANA. 406-657-6988 END/MOSHIER <
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, Jun 8, 1:05 PM MDT, 2 hours 30 minutes before
SPECIAL WEATHER STATEMENT WEATHER SERVICE OFFICE SHERIDAN WY 105 PM MDT SUN JUN 8 1986 ....THUNDERSTORMS ARE DEVELOPING AGAIN IN NORTHERN WYOMING... AT 1 PM MDT...RADAR SHOWED THUNDERSTORMS DEVELOPING IN NORTHERN WYOMING ONCE AGAIN. AT THIS TIME THUNDERSTORMS ARE WIDELY SCATTERED BUT WILL INCREASE IN NUMBER AND INTENSITY DURING THE AFTERNOON. ANY OF THESE STORMS COULD PRODUCE HEAVY RAIN...STRONG GUSTY WINDS... HAIL... FREQUENT LIGHTNING AND LOCAL FLOODING. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THAT AREA OF NORTHERN WYOMING FROM THE BIG HORN MOUNTAINS EAST FOR TONIGHT. IF THREATENING WEATHER APPROACHES TAKE COVER...THEN ANY SIGNIFICANT WEATHER SHOULD BE REPORTED TO YOUR NEAREST. LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE. ZEGLIN
Special weather statement, Jun 8, 2:40 PM MDT, 55 minutes before
SPECIAL WEATHER STATEMENT WEATHER SERVICE OFFICE SHERIDAN WY 240 PM MDT SUN JUN 8 1986 ...THUNDERSTORMS CONTINUED TO DEVELOP OVER NORTHERN WYOMING... RADAR INDICATED THUNDERSTORMS INCREASING IN COVERAGE ACROSS NORTHERN WYOMING. MOVEMENT OF THESE STORMS WERE TO THE NORTH EAST AT ABOUT 25 TO 30 MPH. AT 225 PM MDT AN OBSERVER AT BIG HORN REPORTED PEA SIZE HAIL. THERE WERE TWO UNCONFIRMED REPORTS OF FUNNEL CLOUDS. THE FIRST WAS ABOUT 15 MILES SOUTH OF SHERIDAN WYOMING AT 200 PM MDT AND THE SECOND WAS JUST SOUTH WEST OF BUFFALO WYOMING. THE FLASH FLOOD WATCH THAT WAS ISSUED FOR TONIGHT FOR THE EASTERN HALF OF WYOMING HAS BEEN CANCELED. HOWEVER...LOCAL FLOODING IS POSSIBLE. ANY OF THESE STORMS COULD PRODUCE HAIL...HEAVY RAIN...STRONG GUSTY WINDS AND FREQUENT LIGHTNING. IF THREATENING WEATHER APPROACHES TAKE COVER...THEN ANY SIGNIFICANT WEATHER SHOULD BE REPORTED TO YOUR NEAREST LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONgAL WEATHER SERVICE. KRENZ
Special weather statement, Jun 8, 2:49 PM MDT, 46 minutes before
^GTFSPSBIL SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BILLINGS MT 250 PM MDT SUN JUNE 8 1986 AT 245PM MDT RADAR INDICATED A HEAVY THUNDERSTORM JUST NORTHEAST OF ABSAROKEE MONTANA. HAIL 5/8 INCH IN DIAMETER HAS BEEN REPORTED AT ABSAROKEE DURING THE PAST HALF HOUR. NUMEROUS SMALL HEAVY THUNDERSTORMS ACROSS SOUTH CENTRAL MONTANA ARE INDICATED BY RADAR AT THIS TIME. END
The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 6:33 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Musselshell | 57 min |
| Jun 8, 4:49 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud, Treasure, Yellowstone | 56 min |
| Jun 8, 4:49 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 56 min |
Nearby
Tornado Warnings in Montana, 1986Every tornado warning in 1986Tornadoes in 1986
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.