Alert archive / California / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 13, NWS San Diego, CA

July 29, 2005Riverside County, San Diego County, California

NWS San Diego, CA issued this severe thunderstorm warning at Jul 29, 2005, 1:39 PM PDT for Riverside County, San Diego County, California. It was in force for 81 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 29, 2005, 1:39 PM PDT (20:39 UTC)
Expired
Jul 29, 2005, 3:00 PM PDT
In force
81 min
Issued by
NWS San Diego, CA
Area
Counties, with a storm outline in the text

Counties Riverside County, CA, San Diego County, CA

The radar

The San Diego radar (KNKX), 64 km from the middle of the area, began a volume at 20:40 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

San Diego, CA (KNKX), launched 12:00Z, 8.7 hours before the alert went out and 84 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 12:00Z on 2005-07-29Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, San Diego, CA at 12:00Z on 2005-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 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
1346 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
18 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 KSGX 292041
SVRSGX
CAC065-073-292200-
/O.NEW.KSGX.SV.W.0013.050729T2039Z-050729T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
139 PM PDT FRI JUL 29 2005

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME SOUTH CENTRAL RIVERSIDE COUNTY IN SOUTHEAST CALIFORNIA
  NORTH CENTRAL SAN DIEGO COUNTY IN SOUTHWEST CALIFORNIA

* UNTIL 300 PM PDT

* AT 131 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 7 MILES
  NORTHEAST OF WARNER SPRINGS...OR ABOUT 28 MILES SOUTHWEST OF PALM
  DESERT. THIS STORM WAS NEARLY STATIONARY.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  8 MILES EAST OF OAK GROVE AND 9 MILES SOUTH OF ANZA BY 300 PM PDT

THIS STORM IS ALSO PRODUCING VERY HEAVY RAIN WITH LIKELY FLASH
FLOODING IN THE AREA. PERSONS IN LOW LYING AREAS NEED TO SEEK
HIGHER GROUND. 

LAT...LON 3322 11657 3338 11641 3359 11666 3339 11680

$$
 
ECC
1 follow-up statement
000 
WWUS56 KSGX 292105
SVSSGX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN DIEGO CA
205 PM PDT FRI JUL 29 2005

CAC065-073-292200-
/O.CON.KSGX.SV.W.0013.000000T0000Z-050729T2200Z/
RIVERSIDE CA-SAN DIEGO CA-
205 PM PDT FRI JUL 29 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 300 PM PDT FOR NORTH
CENTRAL SAN DIEGO AND EXTREME SOUTH CENTRAL RIVERSIDE COUNTIES...

AT 155 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 7
MILES NORTHEAST OF WARNER SPRINGS...OR ABOUT 28 MILES SOUTH OF PALM
DESERT. THE THIS STORM WAS WAS NEARLY STATIONARY. THIS STORM IS
LIKELY PRODUCING VERY HEAVY RAIN WITH ASSOCIATED FLASH FLOODING. 

THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL NORTHERN SAN DIEGO COUNTY AT 250 PM PDT

LAT...LON 3322 11657 3338 11641 3359 11666 3339 11680

$$

ECC

The office that day

Everything else NWS San Diego, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 29, 11:40 AM PDTFlash Flood WarningSGXSan Diego3 hr
Jul 29, 12:55 PM PDTFlash Flood WarningSGXSan Bernardino3 hr
Jul 29, 1:20 PM PDTFlash Flood WarningSGXRiverside3 hr
Jul 29, 2:37 PM PDTFlash Flood WarningSGXSan Diego4 hr
Jul 29, 3:18 PM PDTSevere Thunderstorm WarningSGXSan Diego45 min
Jul 29, 3:39 PM PDTFlash Flood WarningSGXSan Bernardino3 hr
Jul 29, 3:52 PM PDTSevere Thunderstorm WarningSGXSan Diego47 min
Jul 29, 4:16 PM PDTSevere Thunderstorm WarningSGXSan Diego30 min

Nearby

Severe Thunderstorm Warnings in California, 2005Every severe thunderstorm warning in 2005

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.