Alert archive / Oregon / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 8, NWS Medford, OR

July 12, 2001Jackson County, Oregon

NWS Medford, OR issued this severe thunderstorm warning at Jul 12, 2001, 6:35 PM PDT for Jackson County, Oregon. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jul 12, 2001, 6:35 PM PDT (01:35 UTC)
Expired
Jul 12, 2001, 7:30 PM PDT
In force
55 min
Issued by
NWS Medford, OR
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Jackson County, OR

The radar

The Medford radar (KMAX), 25 km from the middle of the area, began a volume at 01:38 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 00:00Z, 1.6 hours before the alert went out and 24 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 2001-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 85 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 2001-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.193958Sfc1 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
85 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
3301 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
31 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 130137
SVRMFR

ORC029-130230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEDFORD OR
635 PM PDT THU JUL 12 2001

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN JACKSON COUNTY IN SOUTHWEST OREGON
  THIS INCLUDES THE CITY OF MEDFORD

* UNTIL 730 PM PDT.

* AT 628 PM PDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH LARGE HAIL 7 MILES SOUTH EAST OF RUCH...OR
  ABOUT 17 MILES SOUTHWEST OF MEDFORD...MOVING NORTHEAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  5 MILES SOUTHEAST OF RUCH AT 650 PM PDT
  6 MILES SOUTHEAST OF JACKSONVILLE AT 720 PM PDT
  2 MILES WEST OF PHOENIX...4 MILES NORTHWEST OF TALENT...5 MILES
  SOUTH OF MEDFORD...7 MILES SOUTHEAST OF CENTRAL POINT AT 730 PM PDT

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY BUILDING
AWAY FROM WINDOWS. REMEMBER...PA SEVERE THUNDERSTORM CAN PRODUCE LARGE
DAMAGING HAIL...DAMAGING WINDS IN EXCESS OF 55 MPH...DEADLY
LIGHTNING...AND VERY HEAVY RAIN.

LAT...LON 4213 12320 4200 12304 4227 12264 4246 12283

$$

BUNNAG

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.

NWS Medford, OR wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 12, 2:30 PM PDT, 4 hours 5 minutes earlier.

Area forecast discussion, Jul 12, 2:30 PM PDT, 4 hours 5 minutes before
SOUTHWEST OREGON/NORTHERN CALIFORNIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEDFORD OR
230 PM PDT THU JUL 12 2001

SHORTWAVE DISTURBANCE IS CURRENTLY MOVING NORTHEAST ACROSS EASTERN
SISKIYOU ONEOUS REPORTS MAY BE RECEIVED UNDER CERTAIN
:        WEATHER CONDITIONS
:
: **********************************************************
: ID    LOCATION             1HR PCPN
: **********************************************************
.B FTW 20010712 DH2200/PPH
:CITY OF DALLAS ALERT SYSTEM
DCPT2  :Turtle Creek-Wildwood       :0.00
DBWT2  :NW Hwy-Edgemere Rd          :0.00
DBTT2  :McCree Branch-White Rock    :0.00
DCVT2  :White Rock Creek-Spring     :M
DCCT2  :Preston Road-Olive          :0.00
DAET2  :Dixon Branch-blw NW Hwy     :0.00
DCTT2  :White Rock Lake Dam         :0.00
DBLT2  :Stonewall Jackson School    :0.00
DBJT2  :Harry Stone Park-Millman    :0.00
DAJT2  :Exall Park-Bryan St         :0.00
DBIT2  :Garrett Park-Bryan St       :0.00
DWCT2  :White Rock Creek-Scyene Rd  :0.00
DBST2  :Lake June Branch-St Aug     :0.00
DADT2  :Elam Creek Lake-June Rd     :0.00
DAYT2  :White Rock Creek-CF Haw     :0.00
DCKT2  :SMBX-Municipal Budd         :0.00
DCXT2  :Woody Branch-Westmoreland   :M
DABT2  :Woody Branch-Polk St        :M
DAQT2  :Five Mile Creek-Polk St     :0.00
DAMT2  :Five Mile Creek-Lancaster   :M
DAOT2  :Five Mile Creek-Westmoreland:0.00
DDCT2  :Sarget Rd-Morrell Ave       :0.00
DBAT2  :Cedar Creek-Clarendon Dr    :0.00
DBDT2  :Coombs Creek-Hampton Rd     :0.00
DAPT2  :Donald School               :0.00
DBOT2  :Jefferson Blvd-Ira Ave      :0.00
DAZT2  :Camp Wisdom Rd-Sarah Dr     :M
DCRT2  :Upper Able Sump-1200 In     :0.00
DBGT2  :Corinth St Intake-West      :0.00
DDDT2  :Sylvan-Union Pacific Rail   :0.00
DCNT2  :Singleton Blvd-Shadrack     :0.00
DAGT2  :Eagleford Control Gate      :0.00
GPRT2  :West Fork-Beltline Rd       :0.00
DAKT2  :2255 Irving Blvd            :0.00
DBBT2  :Cedar Springs-Kings Road    :0.00
DBVT2  :Mockingbird-CRI&P RR        :0.00
DBRT2  :Knights Branch-Denton Dr    :0.00
DBKT2  :Inwood Rd-University Blvd   :0.00
DAIT2  :Elm Fork-California Crossing:0.00
DBPT2  :Joes Creek-Walnut Hill      :0.00
DCOT2  :Townsend-Royal Park         :0.00
DAXT2  :Bachman Dam                 :0.00
DATT2  :Bachman Branch-Midway Rd    :0.00
DAHT2  :Bachman Branch-Walnut Hill  :M
DCZT2  :Bachman Branch-Forest Lane  :M
.END

Nearby

Severe Thunderstorm Warnings in Oregon, 2001Every severe thunderstorm warning in 2001

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; radar from the NEXRAD Level II archive.