Alert archive / California / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 3, NWS Los Angeles, CA

July 13, 1990Riverside County, California

NWS Los Angeles, CA issued this severe thunderstorm warning at Jul 13, 1990, 11:05 PM PDT for Riverside County, California. It was in force for 115 min.

The area

The counties it named.

The facts

Issued
Jul 13, 1990, 11:05 PM PDT (06:05 UTC)
Expired
Jul 14, 1990, 1:00 AM PDT
In force
115 min
Issued by
NWS Los Angeles, CA
Area
Whole counties

County Riverside County, CA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

San Diego, CA (KNKX), launched 00:00Z, 6.1 hours before the alert went out and 154 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, San Diego, CA at 00:00Z on 1990-07-14Temperature 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, San Diego, CA at 00:00Z on 1990-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2692 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

Everything else NWS Los Angeles, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 13, 9:36 PM PDTFlash Flood WarningLOXSan Bernardino3 hr
Jul 13, 9:36 PM PDTSevere Thunderstorm WarningLOXSan Bernardino3 hr
Jul 13, 11:05 PM PDTFlash Flood WarningLOXSan Bernardino115 min
Jul 13, 11:05 PM PDTFlash Flood WarningLOXRiverside115 min
Jul 13, 11:05 PM PDTSevere Thunderstorm WarningLOXSan Bernardino115 min
Jul 14, 1:00 AM PDTFlash Flood WarningLOXSan Bernardino2 hr
Jul 14, 1:00 AM PDTFlash Flood WarningLOXRiverside2 hr
Jul 14, 1:00 AM PDTSevere Thunderstorm WarningLOXRiverside2 hr
Jul 14, 1:00 AM PDTSevere Thunderstorm WarningLOXSan Bernardino2 hr

Nearby

Severe Thunderstorm Warnings in California, 1990Every severe thunderstorm warning in 1990

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.