Alert archive / Oregon / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 2, NWS Medford, OR

June 13, 1986Klamath County, Oregon

NWS Medford, OR issued this severe thunderstorm warning at Jun 13, 1986, 7:05 PM PDT for Klamath County, Oregon. It was in force for 115 min.

The area

The counties it named.

The facts

Issued
Jun 13, 1986, 7:05 PM PDT (02:05 UTC)
Expired
Jun 13, 1986, 9:00 PM PDT
In force
115 min
Issued by
NWS Medford, OR
Area
Whole counties

County Klamath County, OR

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

Medford/Jackson, OR (KMFR), launched 00:00Z, 2.1 hours before the alert went out and 101 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, Medford/Jackson, OR at 00:00Z on 1986-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 71 joules per kilogram.LCLLFCEL10008507005003002001001 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, Medford/Jackson, OR at 00:00Z on 1986-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.1939Sfc1 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
71 J/kg
Mixed-layer CIN
-146 J/kg
Mixed-layer LCL
3486 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPDX 140216
SVRPDX
BULLETIN-EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PORTLAND, OR
716 PM PDT SAT JUN 13 1986
ORC035-140400-

BULLETIN- IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PORTLAND, OR
705 PM PDT FRI JUN 13 1986 EXPIRES 900 PM PDT

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 9 PM FRIDAY FOR PEOPLE IN THE FOLLOWING COUNTY OF
SOUTH CENTRAL OREGON...KLAMATH

AT 7 PM..RADAR AND SATELLITE PHOTOS INDICATED AN AREA OF HEAVY
THUNDERSTORMS JUST WEST OF KLAMATH FALLS OREGON..MOVING SLOWLY
NORTH NORTHEAST ABOUT 12 MPH.

THIS STORM IS ACCOMPANIED BY DANGEROUS LIGHTNING..OSTRONG GUSTY
WINDS WITH LARGE HAIL AND LOCAL HEAVY RAIN.

IF THREATENING WEATHER APPROACHES.. YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY.

NISHIMOTO

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, Jun 13, 5:35 PM PDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEDFORD, OR
528 PM PDT SAT JUN 13 1986

...THUNDERSTORMS NEARING THE OREGON BORDER...

AN AREA OF THUNDERSTORMS HAS DEVELOPED JUST 20 MILES SOUTHWEST OF
ASHLAND ON THE SOUTH SLOPES OF THE SISKIYOU MOUNTAINS.

RADAR HAS INDICATED SOME OF THESE THUNDERSTORMS MAY BE PRODUCING HEAVY
RAIN...SMALL HAIL...GUSTY WINDS AND LIGHTNING.  MOVEMENT IS TO THE NORTH
NORTHEAST AT 10 MPH.

PERSONS LIVING IN THE ASHLAND TO APPLEGATE AREAS SHOULD BE ALERT FOR
LOCAALY VERY HEAVY RAIN...LIGHTNING...STRONG GUSTY WINDS AND HAIL IN
THE NEXT FEW HOURS AS THESE THUNDERSTORMS MOVE SLOWLY NORTHWARD.
OLSON

Nearby

Severe Thunderstorm Warnings in Oregon, 1986Every severe thunderstorm warning 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.