Alert archive / California / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 2, NWS Medford, OR

July 13, 1996Siskiyou County, California

NWS Medford, OR issued this severe thunderstorm warning at Jul 13, 1996, 5:01 PM PDT for Siskiyou County, California. It was in force for 49 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 13, 1996, 5:01 PM PDT (00:01 UTC)
Expired
Jul 13, 1996, 5:50 PM PDT
In force
49 min
Issued by
NWS Medford, OR
Area
Whole counties

County Siskiyou County, CA

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 00:00Z, 0.0 hours before the alert went out and 89 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 1996-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 119 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 1996-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
119 J/kg
Mixed-layer CIN
-205 J/kg
Mixed-layer LCL
3627 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
55 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 140006
SVRMFR
CAC093-140050-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEDFORD OR
501 PM PDT SAT JUL 13 1996

THE NATIONAL WEATHER SERVICE IN MEDFORD OR HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 550 PM PDT FOR PEOPLE IN THE
FOLLOWING LOCATIONS...

IN NORTH CENTRAL CALIFORNIA

  ...WESTERN SISKIYOU COUNTY

AT 500 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR IN MEDFORD
DETECTED A SEVERE THUNDERORM 10 MILES WEST OF CLEAR CREEK...OR 15
MILES SOUTHWEST OF HAPPY CAMP.  THIS STORM WAS STATIONARY AND IS
SHOWING VERY LITTLE MOVEMENT.

PERSONS...AND RECREATION INTERESTS IN THE VICINITY OF BEAR PEAK AND
CLEAR CREEK SHOULD TAKE SHELTER FROM `THIS STORM NOW.

PERSONS AND RECREATION INTERESTS ALONG AND NEAR CLEAR CREEK SHOULD
ALSO BE ON THE LOOKOUT FOR RAPIDLY RISING STREAMS AND CREEKS IN THE
VICINITY OF CLEAR CLEAR CEEK AND THE SALMON RIVER.

VAN TRESS

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 13, 4:56 PM PDT, 5 minutes before
ORZ005-009-013-CAZ007-008-140200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEDFORD OR
447 PM PDT SAT JUL 13 1996

THUNDERSTORMS CONTINUE TO MOVE ACROSS NORTHERN CALIFORNIA INTO
SOUTHERN OREGON. AT 440 PM AN AREA OF THUNDERSTORMS WAS OVER
SOUTHWESTERN SISKIYOU COUNTY FROM SOMES BAR TO CECILVILLE...ALONG THE
SALMON RIVER. THESE STORMS ARE PRODUCING HEAVY RAIN AND POSSIBLY
SMALL HAIL...AND MAY CAUSE STREAMS AND RIVERS TO RISE RAPIDLY.

OTHER THUNDERSTORMS WERE OVER EASTERN SISKIYOU COUNTY EAST OF YREKA
TO NEAR TENNANT...EXTENDING INTO SOUTHERN MODOC COUNTY NEAR ADIN.
THUNDERSTORMS WERE ALSO DEVELOPING OVER SOUTHERN JACKSON AND
JOSEPHINE COUNTIES IN OREGON.

THESE STORMS ARE MOVING SLOWLY TO THE NORTHWEST...AND SOME STORMS ARE
NEARLY STATIONARY CAUSING LOCALLY HEAVY RAIN.

OUTDOOR RECREATION INTERESTS ALONG THE SALMON RIVER FROM SOMES BAR TO
CECILVILLE SHOULD BE ON THE LOOKOUT FOR RAPIDLY RISING WATER LEVELS
ALONG STREAMS AND CREEKS FEEDING INTO THE SALMON RIVER.

RC

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 5:25 PM PDTFlash Flood WarningMFRSiskiyou2 hr
Jul 14, 2:20 PM PDTFlash Flood WarningMFRModoc65 min

Nearby

Severe Thunderstorm Warnings in California, 1996Every severe thunderstorm warning in 1996

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.