Alert archive / California / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 12, NWS San Diego, CA
NWS San Diego, CA issued this severe thunderstorm warning at Jul 28, 2005, 1:47 PM PDT for San Diego County, California. It was in force for 91 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 28, 2005, 1:47 PM PDT (20:47 UTC)
- Expired
- Jul 28, 2005, 3:18 PM PDT
- In force
- 91 min
- Issued by
- NWS San Diego, CA
- Area
- Counties, with a storm outline in the text
County San Diego County, CA
The radar
The San Diego radar (KNKX), 58 km from the middle of the area, began a volume at 20:47 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 8.8 hours before the alert went out and 70 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1119 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS56 KSGX 282048 SVRSGX CAC073-282215- /O.NEW.KSGX.SV.W.0012.050728T2047Z-050728T2215Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SAN DIEGO CA 147 PM PDT THU JUL 28 2005 THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTH CENTRAL SAN DIEGO COUNTY IN SOUTHWEST CALIFORNIA * UNTIL 315 PM PDT * AT 137 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 8 MILES NORTHWEST OF BOULEVARD...OR ABOUT 32 MILES EAST OF LAKESIDE...AND MOVING NORTH AT 10 TO 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... MOUNT LAGUNA BY 200 PM PDT LAT...LON 3261 11647 3264 11622 3296 11646 3301 11662 $$ ATKIN/SMALL
2 follow-up statements
000 WWUS56 KSGX 282131 SVSSGX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 230 PM PDT THU JUL 28 2005 CAC073-282215- /O.CON.KSGX.SV.W.0012.000000T0000Z-050728T2215Z/ SAN DIEGO CA- 230 PM PDT THU JUL 28 2005 ...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 315 PM PDT FOR CENTRAL SAN DIEGO COUNTY... AT 230 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL... AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR PINE VALLEY...OR ABOUT 26 MILES EAST OF LAKESIDE...AND WAS EXPANDING ACROSS CUYAMACA PEAK AND JULIAN. LAT...LON 3270 11652 3270 11618 3313 11649 3313 11672 $$ MACKECHNIE
000 WWUS56 KSGX 282218 SVSSGX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 317 PM PDT THU JUL 28 2005 CAC073-282227- /O.EXP.KSGX.SV.W.0012.000000T0000Z-050728T2215Z/ SAN DIEGO CA- 317 PM PDT THU JUL 28 2005 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SAN DIEGO COUNTY EXPIRES AT 315 PM PDT... LAT...LON 3270 11652 3270 11618 3313 11649 3313 11672 $$ MACKECHNIE
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 San Diego, CA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 28, 9:30 AM PDT, 4 hours 17 minutes earlier.
Area forecast discussion, Jul 28, 9:30 AM PDT, 4 hours 17 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN DIEGO CA 930 AM PDT THU JUL 28 2005 .SYNOPSIS...INCREASING MOISTURE IN SOUTHEAST FLOW WILL CAUSE AFTERNOON AND EVENING THUNDERSTORMS IN THE MOUNTAINS AND DESERTS FOR THE NEXT SEVERAL DAYS. A FEW THUNDERSTORMS COULD DRIFT WEST OF THE MOUNTAINS THIS WEEKEND. A SHALLOW MARINE LAYER WILL CONTINUE AREAS OF LOW CLOUDS AND FOG NEAR THE COAST DURING THE NIGHTS AND MORNINGS. && .DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES... THERE WERE AREAS OF COASTAL LOW CLOUDS AND FOG THAT EXTENDED LOCALLY INTO THE WRN SAN VALLEYS THIS MORNING. THE 12Z NKX SOUNDING WAS SIMILAR TO 24 HOURS PREVIOUS WITH MOIST SW FLOW IN THE MID LEVELS AND ABOUT 1.5 INCHES OF PW. THE SOUNDING HAD AN INVERSION BASED NEAR 1100 FT. ONSHORE GRADIENTS WITH ABOUT 5 MB SAN-IPL. THE UPPER HI IS FORECAST TO REMAIN IN A FAVORABLE LOCATIONS TO CAUSE PERSISTENT S TO SE FLOW ALOFT WITH MID LEVEL MOISTURE. IT LOOKS LIKE THIS MID LEVEL MOISTURE MAY DECREASE SLIGHTLY FRI AND THEN INCREASE OVER THE WEEKEND. THIS WILL CONTINUE A GOOD CHANCE OF THUNDERSTORMS OVER THE MOUNTAINS EACH AFTERNOON WITH A SMALLER CHANCE IN THE DESERTS. A FEW THUNDERSTORMS COULD DRIFT W OF THE MOUNTAINS SAT AND SUN AND THERE WILL ALSO BE A BETTER CHANCE OF FLASH FLOODING OVER THE WEEKEND. A SHALLOW MARINE LAYER WILL CONTINUE AREAS OF COASTAL LOW CLOUDS AND FOG IN THE NIGHTS AND MORNINGS...DECREASING AS THE MONSOONAL FLOW INCREASES. RELATIVELY MINOR TEMP CHANGES EXCEPT LOCALLY LOWER MAX TEMPS AND HIGHER MIN TEMPS AS CLOUD COVER AND HUMIDITIES INCREASE...ESPECIALLY IN THE MOUNTAINS AND DESERTS. LONGER RANGE PROGS INDICATE LITTLE CHANGE IN THIS PATTERN THROUGH MOST OF NEXT WEEK. && .AVIATION...AREAS OF LOW CLOUDS MAINLY SAN DIEGO COUNTY COASTAL SECTIONS THIS MORNING WITH BASES NEAR 1000 FEET AND TOPS NEAR 1600 CLEARING RAPIDLY. SCATTERED THUNDERSTORMS OVER THE MOUNTAINS AND DESERTS WILL DEVELOP LATER THIS MORNING...AND PROBABLY EVERY AFTERNOON FOR THE NEXT SEVERAL DAYS AS THE MONSOON PERSISTS. THE SUBTROPICAL AIR MASS AND MOIST EASTERLY FLOW IN THE MID LEVELS SHOULD MINIMIZE MARINE LAYER FORMATION AND INTRUSION OVER THE NEXT SEVERAL DAYS. && .SGX WATCHES/WARNINGS/ADVISORIES...HAZARDOUS WEATHER OUTLOOK FOR MONSOONAL THUNDERSTORMS...SEE LAXHWOSGX. PUBLIC...ATKIN AVIATION...CLARK
Hazardous weather outlook, Jul 28, 4:00 AM PDT, 9 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN DIEGO CA 400 AM PDT THU JUL 28 2005 CAZ055-056-058-060-062-282300- SAN BERNARDINO COUNTY MOUNTAINS- RIVERSIDE COUNTY MOUNTAINS- SAN DIEGO COUNTY MOUNTAINS- APPLE AND LUCERNE VALLEYS- SAN DIEGO COUNTY DESERTS- 400 AM PDT THU JUL 28 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SAN BERNARDINO COUNTY MOUNTAINS RIVERSIDE COUNTY MOUNTAINS SAN DIEGO COUNTY MOUNTAINS APPLE AND LUCERNE VALLEYS SAN DIEGO COUNTY DESERTS IN EXTREME SOUTHWESTERN CALIFORNIA. .DAY ONE... TODAY THROUGH TONIGHT. MODERATE FLASH FLOOD POTENTIAL RATING. THUNDERSTORMS WITH ISOLATED FLASH FLOODING...STRONG GUSTY WINDS...AND HAIL ARE POSSIBLE. .DAYS TWO THROUGH SEVEN... FRIDAY THROUGH WEDNESDAY. FOR FRIDAY AND SATURDAY...HIGH FLASH FLOOD POTENTIAL RATING. THUNDERSTORMS WITH AREAS OF HEAVY RAIN ARE POSSIBLE...AND THE THREAT OF FLASH FLOODING COULD BE SIGNIFICANT. THUNDERSTORMS MAY ALSO HAVE STRONG GUSTY WINDS AND HAIL. FOR SUNDAY THROUGH WEDNESDAY...AFTERNOON AND EVENING THUNDERSTORMS WILL CONTINUE WITH THE POSSIBILITY OF FLASH FLOODING...STRONG GUSTY WINDS...AND HAIL. .SPOTTER INFORMATION STATEMENT... SKYWARN WEATHER SPOTTER ACTIVATION IS NOT REQUESTED FOR THIS AREA... HOWEVER WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. CAZ061-282300- COACHELLA VALLEY- 400 AM PDT THU JUL 28 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR COACHELLA VALLEY IN EXTREME SOUTHWESTERN CALIFORNIA. .DAY ONE... TODAY THROUGH TONIGHT. THUNDERSTORMS POSSIBLE WITH DANGEROUS LIGHTNING...SMALL HAIL... STRONG GUSTY WINDS...BRIEF HEAVY RAIN AND LOCAL FLASH FLOODING. .DAYS TWO THROUGH SEVEN... FRIDAY THROUGH WEDNESDAY. FOR FRIDAY AND SATURDAY...MODERATE FLASH FLOOD POTENTIAL RATING. THUNDERSTORMS WITH ISOLATED FLASH FLOODING ARE POSSIBLE. THUNDERSTORMS MAY ALSO HAVE STRONG GUSTY WINDS AND HAIL. FOR SUNDAY THROUGH WEDNESDAY...AFTERNOON AND EVENING THUNDERSTORMS WILL CONTINUE WITH THE POSSIBILITY OF FLASH FLOODING...STRONG GUSTY WINDS...AND HAIL. .SPOTTER INFORMATION STATEMENT... SKYWARN WEATHER SPOTTER ACTIVATION IS NOT REQUESTED FOR THIS AREA... HOWEVER WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. NOTE...THE HAZARDOUS WEATHER OUTLOOK NOW INCORPORATES THE FLASH FLOOD POTENTIAL INDEX THAT WAS ISSUED SEPARATELY IN PREVIOUS YEARS. THE FLASH FLOOD POTENTIAL INDEX WILL BE INCLUDED IN THE HAZARDOUS WEATHER OUTLOOK IF IT EXCEEDS THE LOW CATEGORY IN THE FIRST TWO DAYS. THIS PRODUCT WILL BE UPDATED DAILY AT 4 AM AND 4 PM OR AS NEEDED THROUGH SEPTEMBER 30. MARTIN
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 1:30 PM PDT | Flash Flood Warning | SGX | San Diego | 2 hr |
| Jul 28, 3:23 PM PDT | Flash Flood Warning | SGX | San Diego | 67 min |
| Jul 28, 3:53 PM PDT | Flash Flood Warning | SGX | San Bernardino | 97 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.