Alert archive / Oregon / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 3, NWS Medford, OR

July 21, 1995Jackson County, Oregon

NWS Medford, OR issued this severe thunderstorm warning at Jul 21, 1995, 6:15 PM PDT for Jackson County, Oregon. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Jul 21, 1995, 6:15 PM PDT (01:15 UTC)
Expired
Jul 21, 1995, 6:45 PM PDT
In force
30 min
Issued by
NWS Medford, OR
Area
Whole counties

County Jackson County, OR

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 00:00Z, 1.3 hours before the alert went out and 9 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 1995-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1241 joules per kilogram.LCLEL10008507005003002001001 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 1995-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
1241 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
2242 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
49 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 KMFR 220115 RRA
SVRMFR
ORC029-220145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEDFORD OR
615 PM PDT FRI JUL 21 1995
 
THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  645 PM PDT
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN SOUTHWEST OREGON
 
   ...CENTRAL JACKSON COUNTY
 
AT 615 PM A SPOTTER IN MEDFORD OREGON REPORT 1 INCH HAIL AND VERY HEAVY
RAIN ASSOCIATED WITH A SEVERE THUNDERSTORM. THE THUNDERSTORM WAS
STATIONARY OVER THE CITY OF MEDFORD. SOME LOCAL FLOODING OF THE ROADWAYS
CAN BE EXPECTED WITH THIS STORM ALONG WITH LARGE HAIL.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
 
GETTMAN
WSO MEDFORD

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 21, 12:31 PM PDT, 5 hours 44 minutes before
ORC029-033-035-037-212330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEDFORD OR
1231 PM PDT FRI JUL 21 1995

... THUNDERSTORMS BUILDING OVER SOUTHERN OREGON ...

MOIST AND UNSTABLE AIR OVER SOUTHWEST AND SOUTH CENTRAL OREGON HAS
COMBINED WITH DAYTIME HEATING TO PRODUCE THUNDERSTORM ACTIVITY OVER THE
AREA.  THESE STORMS WILL CONTINUE TO BUILD THROUGH THE EVENING
HOURS...INCREASING IN INTENSITY.

THE THUNDERSTORMS WILL BE ACCOMPANIED BY HEAVY RAIN SHOWERS WHICH COULD
PRODUCE SOME LOCALIZED FLOODING.  IN ADDITION...SOME OF THE STORMS WILL
BE ACCOMPANIED BY HAIL AND WIND GUSTS TO NEAR 40 MPH.

BE AWARE OF CHANGING CONDITIONS AND SEEK SHELTER SHOULD A STORM APPROACH
YOUR AREA.  CONSULT NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCE FOR
FURTHER INFORMATION ON WEATHER DEVELOPMENTS.

ADDITIONAL STATEMENTS OR WARNINGS WILL BE ISSUED AS CONDITIONS WARRANT.

GETTMAN
WSO MEDFORD
Special weather statement, Jul 21, 12:32 PM PDT, 5 hours 43 minutes before
ORC029-033-035-037-212330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEDFORD OR
1231 PM PDT FRI JUL 21 1995

... THUNDERSTORMS BUILDING OVER SOUTHERN OREGON ...

MOIST AND UNSTABLE AIR OVER SOUTHWEST AND SOUTH CENTRAL OREGON HAS
COMBINED WITH DAYTIME HEATING TO PRODUCE THUNDERSTORM ACTIVITY OVER THE
AREA.  THESE STORMS WILL CONTINUE TO BUILD THROUGH THE EVENING
HOURS...INCREASING IN INTENSITY.

THE THUNDERSTORMS WILL BE ACCOMPANIED BY HEAVY RAIN SHOWERS WHICH COULD
PRODUCE SOME LOCALIZED FLOODING.  IN ADDITION...SOME OF THE STORMS WILL
BE ACCOMPANIED BY HAIL AND WIND GUSTS TO NEAR 40 MPH.

BE AWARE OF CHANGING CONDITIONS AND SEEK SHELTER SHOULD A STORM APPROACH
YOUR AREA.  CONSULT NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCE FOR
FURTHER INFORMATION ON WEATHER DEVELOPMENTS.

ADDITIONAL STATEMENTS OR WARNINGS WILL BE ISSUED AS CONDITIONS WARRANT.

GETTMAN
WSO MEDFORD
Local storm report, Jul 21, 4:50 PM PDT, 1 hour 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
450 PM PDT FRI JUL 21 1995

TIME (PDT)        CITY LOCATION        EVENT/REMARKS
                  COUNTY/SPOTTER

430 PM            MT SEXTON            3/4 INCH HAIL

END
CRAWFORD
Local storm report, Jul 21, 4:52 PM PDT, 1 hour 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
450 PM PDT FRI JUL 21 1995

TIME (PDT)        CITY LOCATION        EVENT/REMARKS
                  COUNTY/SPOTTER

430 PM            MT SEXTON            3/4 INCH HAIL

END
CRAWFORD
Local storm report, Jul 21, 5:58 PM PDT, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
600 PM PDT FRI JUL 21 1995

TIME (PDT)        CITY LOCATION        EVENT/REMARKS
                  COUNTY/SPOTTER

545 PM            WIMER                HEAVY RAIN...1/4 INCH HAIL
                                       STORM HAS NOW ENDED

555 PM            SAMS VALLEY          .75 INCH OF RAIN IN 30
                                       MINUTES...STORM NOW OVER

END
CRAWFORD
Local storm report, Jul 21, 6:00 PM PDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
600 PM PDT FRI JUL 21 1995

TIME (PDT)        CITY LOCATION        EVENT/REMARKS
                  COUNTY/SPOTTER

545 PM            WIMER                HEAVY RAIN...1/4 INCH HAIL
                                       STORM HAS NOW ENDED

555 PM            SAMS VALLEY          .75 INCH OF RAIN IN 30
                                       MINUTES...STORM NOW OVER

END
CRAWFORD

The office that day

Everything else NWS Medford, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 21, 7:24 PM PDTSevere Thunderstorm WarningMFRJosephine36 min

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.