Alert archive / Oregon / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 2, NWS Medford, OR

July 17, 2000Jackson County, Oregon

NWS Medford, OR issued this severe thunderstorm warning at Jul 17, 2000, 7:10 PM PDT for Jackson County, Oregon. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 17, 2000, 7:10 PM PDT (02:10 UTC)
Expired
Jul 17, 2000, 7:40 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, 2.2 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 2000-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 575 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 2000-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
575 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
2388 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
119 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 
WUUS56 KMFR 180211 COR
SVRMFR
ORC029-180240-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED
NATIONAL WEATHER SERVICE MEDFORD OR
710 PM PDT MON JUL 17 2000

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL JACKSON COUNTY IN SOUTHWESTERN OREGON

* UNTIL 740 PM PDT

* AT 704 PM PDT... MEDFORD DOPPLER RADAR INDICATED A SEVERE   
THUNDERSTORM BETWEEN MEDFORD AND WHITE CITY...MOVING NORTH AT 5   
MPH.

THIS STORM HAS A HISTORY OF LARGE HAIL.  SPOTTERS HAVE REPORTED HAIL 
BETWEEN 1/2 INCH AND 1 INCH IN DIAMETER.  GO INSIDE A STURDY BUILDING
AND STAY AWAY FROM WINDOWS!

STOCKTON

 
N

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 6:26 PM PDTSevere Thunderstorm WarningMFRJackson29 min

Nearby

Severe Thunderstorm Warnings in Oregon, 2000Every severe thunderstorm warning in 2000

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.