Alert archive / Oregon / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 13, NWS Pendleton, OR

July 9, 1995Union County, Wallowa County, Oregon

NWS Pendleton, OR issued this severe thunderstorm warning at Jul 9, 1995, 4:13 PM PDT for Union County, Wallowa County, Oregon. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
Jul 9, 1995, 4:13 PM PDT (23:13 UTC)
Expired
Jul 9, 1995, 5:00 PM PDT
In force
47 min
Issued by
NWS Pendleton, OR
Area
Whole counties

Counties Union County, OR, Wallowa County, OR

The nearest sounding before it

Boise Airport, ID (KBOI), launched 12:00Z, 11.2 hours before the alert went out and 236 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, Boise Airport, ID at 12:00Z on 1995-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 111 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, Boise Airport, ID at 12:00Z on 1995-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 114 square meters per square second.19395878Sfc1 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
111 J/kg
Mixed-layer CIN
-369 J/kg
Mixed-layer LCL
1389 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
114 m²/s²
0-3 km storm-relative helicity
298 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 KPDT 092314 RRA
SVRPDT
ORC061-063-100000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PENDLETON OR
413 PM PDT SUN JUL 9 1995
 
THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  500 PM PDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST OREGON
 
   ...NORTHERN UNION COUNTY...NORTHERN WALLOWA COUNTY
 
AT 4:10 PM...A WEATHER SPOTTER 6 MILES EAST OF ELGIN REPORTED GOLFBALL
SIZE HAIL AND HEAVY RAIN. THE STORM WAS MOVING NORTHEAST INTO A SPARSELY
POPULATED AREA OF NORTHWEST WALLOWA COUNTY...NORTHWEST OF ENTERPRISE.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY 0LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
DOHERTY
 
&

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 9, 2:20 PM PDT, 1 hour 53 minutes before
ORZ010-011-WAZ010-092315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PENDLETON OR
220 PM PDT SUN JUL 9 1995

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTHEAST OREGON
AND SOUTHEAST WASHINGTON UNTIL 6 PM...

A 2:20 PM...ANOTHER LINE OF THUNDERSTORMS WAS DEVELOPING IN EASTERN
UMATILLA...NORTHERN UNION...WESTERN WALLOWA AND SOUTHERN COLUMBIA
COUNTIES.  THESE STORMS ARE DEVELOPING RAPIDLY.

IF A THUNDERSTORM APPROACHES...SEEK SHELTER IN A STRONG BUILDING.
MONITOR FORECASTS CLOSELY BE PREPARED TO MOVE TO SAFETY IF A WARNING IS
ISSUED.

DOHERTY
Special weather statement, Jul 9, 3:55 PM PDT, 18 minutes before
ORZ011-WAZ010-100100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PENDLETON OR
355 PM PDT SUN JUL 9 1995

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTHEAST OREGON
AND SOUTHEAST WASHINGTON UNTIL 6 PM...

AT 3:55 PM...A STRONG THUNDERSTORM WAS REPORTED IN NORTHERN UNION COUNTY
IN THE ELGIN AREA.  ACCORDING TO A UNION COUNTY SHERIFF DEPUTY...THE
STORM WAS PRODUCING STRONG GUSTY WINDS AND FREQUENT LIGHTNING.

THIS THUNDERSTORM WILL MOVE NORTHEAST INTO A SPARSELY POPULATED AREA OF
THE BLUE MOUNAINS IN NORTHWEST WALLOWA...SOUTHERN COLUMBIA...AND
SOUTHERN GARFIELD COUNTIES BY 4:30 PM.

MONITOR FORECASTS CLOSELY AND BE PREPARED TO SEEK SAFE SHELTER IF
A THUNDERSTORM APPROACHES OR A WARNING IS ISSUED.

DOHERTY

&
Special weather statement, Jul 9, 3:56 PM PDT, 17 minutes before
ORZ011-WAZ010-100100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PENDLETON OR
355 PM PDT SUN JUL 9 1995

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTHEAST OREGON
AND SOUTHEAST WASHINGTON UNTIL 6 PM...

AT 3:55 PM...A STRONG THUNDERSTORM WAS REPORTED IN NORTHERN UNION COUNTY
IN THE ELGIN AREA.  ACCORDING TO A UNION COUNTY SHERIFF DEPUTY...THE
STORM WAS PRODUCING STRONG GUSTY WINDS AND FREQUENT LIGHTNING.

THIS THUNDERSTORM WILL MOVE NORTHEAST INTO A SPARSELY POPULATED AREA OF
THE BLUE MOUNAINS IN NORTHWEST WALLOWA...SOUTHERN COLUMBIA...AND
SOUTHERN GARFIELD COUNTIES BY 4:30 PM.

MONITOR FORECASTS CLOSELY AND BE PREPARED TO SEEK SAFE SHELTER IF
A THUNDERSTORM APPROACHES OR A WARNING IS ISSUED.

DOHERTY

&

Nearby

Severe Thunderstorm Warnings in Oregon, 1995Every severe thunderstorm warning in 1995

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.