Alert archive / Washington / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 20, NWS Spokane, WA

July 9, 1995Spokane County, Washington

NWS Spokane, WA issued this severe thunderstorm warning at Jul 9, 1995, 4:40 PM PDT for Spokane County, Washington. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jul 9, 1995, 4:40 PM PDT (23:40 UTC)
Expired
Jul 9, 1995, 6:45 PM PDT
In force
2 hr
Issued by
NWS Spokane, WA
Area
Whole counties

County Spokane County, WA

The nearest sounding before it

Spokane Intl Airport, WA (KGEG), launched 12:00Z, 11.7 hours before the alert went out and 7 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, Spokane Intl Airport, WA at 12:00Z on 1995-07-09Temperature 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, Spokane Intl Airport, WA at 12:00Z on 1995-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 square meters per square second.1939587897Sfc1 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
1252 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
281 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 KGEG 092344 RRA
SVRGEG
WAC063-100145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
440 PM PDT SUN JUL 9 1995
 
THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  645 PM PDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST WASHINGTON
 
   ...SPOKANE COUNTY
 
THE SPOKANE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 6 PM FOR SPOKANE COUNTY.
 
AT 435 PM PDT A WEATHER SPOTTER IN OTIS ORCHARD REPORTED 3/4 INCH
HAIL...HEAVY RAIN...AND FLOODING FROM A THUNDERSTORM AT OTIS
ORCHARD...WASHINGTON.  THIS STORM IS MOVING NORTH NORTHEAST AT AROUND 30
MPH.  HOWEVER...OTHER STORMS TO THE SOUTH-SOUTHWEST WILL FOLLOW
THROUGHOUT THE EARLY EVENING.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ONv THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
 
 
&

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, 1:39 PM PDT, 3 hours 1 minute before
WAZ006-100200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
140 PM PDT SUN JUL 09 1995

...SEVERE THUNDERSTORM WATCH FOR MUCH OF EASTERN WASHINGTON UNTIL 6
PM PDT...

THE  NATIONAL SEVERE STORM FORECAST CENTER HAS ISSUED A SEVERE
THUNDERSTORM WATCH EFFECTIVE UNTIL 6 PM FOR MUCH OF EASTERN
WASHINGTON. THIS WATCH INCLUDES THE COUNTIES OF FERRY... STEVENS...
PEND OREILLE... SPOKANE.. FRANKLIN... ADAMS AND GRANT. A SEVERE
THUNDERSTORMS WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR THE
DEVELOPMENT OF THUNDERSTORMS THAT COULD PRODUCE WINDS IN EXCESS OF 57
MPH AND HAIL 3/4 OF AN INCH OR LARGER. HEAVY RAIN AND LIGHTNING ARE
ALSO POSSIBLE WITH THESE STORMS.

ALL PERSONS IN AND AROUND THE WATCH AREAS ARE URGED TO TAKE
PRECAUTIONS TO PROTECT THEMSELVES AND THEIR PROPERTY FROM THIS
POTENTIALLY DANGEROUS SITUATION. STAY TUNED TO NOAA WEATHER RADIO OR
OTHER WEATHER INFORMATION SOURCES FOR THE LATEST ON THESE STORMS.

BETWEEN D2 AND 4 PM.... THUNDERSTORMS WILL MOVE INTO EASTERN
WASHINGTON FROM MOSES LAKE AND EPHRATA EAST TO SPOKANE.

LIVINGSTON
Special weather statement, Jul 9, 1:40 PM PDT, 3 hours before
WAZ006-100200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
140 PM PDT SUN JUL 09 1995

...SEVERE THUNDERSTORM WATCH FOR MUCH OF EASTERN WASHINGTON UNTIL 6
PM PDT...

THE  NATIONAL SEVERE STORM FORECAST CENTER HAS ISSUED A SEVERE
THUNDERSTORM WATCH EFFECTIVE UNTIL 6 PM FOR MUCH OF EASTERN
WASHINGTON. THIS WATCH INCLUDES THE COUNTIES OF FERRY... STEVENS...
PEND OREILLE... SPOKANE.. FRANKLIN... ADAMS AND GRANT. A SEVERE
THUNDERSTORMS WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR THE
DEVELOPMENT OF THUNDERSTORMS THAT COULD PRODUCE WINDS IN EXCESS OF 57
MPH AND HAIL 3/4 OF AN INCH OR LARGER. HEAVY RAIN AND LIGHTNING ARE
ALSO POSSIBLE WITH THESE STORMS.

ALL PERSONS IN AND AROUND THE WATCH AREAS ARE URGED TO TAKE
PRECAUTIONS TO PROTECT THEMSELVES AND THEIR PROPERTY FROM THIS
POTENTIALLY DANGEROUS SITUATION. STAY TUNED TO NOAA WEATHER RADIO OR
OTHER WEATHER INFORMATION SOURCES FOR THE LATEST ON THESE STORMS.

BETWEEN 2 AND 4 PM.... THUNDERSTORMS WILL MOVE INTO EASTERN
WASHINGTON FROM MOSES LAKE AND EPHRATA EAST TO SPOKANE.

LIVINGSTON

The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 9, 3:45 PM PDTSevere Thunderstorm WarningOTXGarfield, Whitman60 min
Jul 9, 4:12 PM PDTSevere Thunderstorm WarningOTXSpokane2 hr
Jul 9, 4:22 PM PDTSevere Thunderstorm WarningOTXSpokane2 hr

Nearby

Severe Thunderstorm Warnings in Washington, 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.