Alert archive / California / Flash Flood Warnings in 2015
Flash Flood Warning 13, NWS San Diego, CA
NWS San Diego, CA issued this flash flood warning at Jul 19, 2015, 5:59 PM PDT for San Diego County, California. It was in force for 2 hr. 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 19, 2015, 5:59 PM PDT (00:59 UTC)
- Expired
- Jul 19, 2015, 8:00 PM PDT
- In force
- 2 hr
- Issued by
- NWS San Diego, CA
- Area
- Storm-based polygon
- Flood severity
- None
County San Diego County, CA
The radar
The San Diego radar (KNKX), 29 km from the middle of the area, began a volume at 01:00 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 00:00Z, 1.0 hours before the alert went out and 49 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
- 426 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 725 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -42 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.9
The text
As transmitted, in the capitals the NWS used until 2016.
758
WGUS56 KSGX 200059
FFWSGX
CAC073-200300-
/O.NEW.KSGX.FF.W.0013.150720T0059Z-150720T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
559 PM PDT SUN JUL 19 2015
THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL SAN DIEGO COUNTY IN SOUTHWESTERN CALIFORNIA...
* UNTIL 800 PM PDT
* AT 556 PM PDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
HEAVY RAIN FALLING ACROSS THE WARNED AREA. FLASH FLOODING IS
ALREADY OCCURRING. IN ADDITION...EXCESSIVE RAINFALL WILL LIKELY
RESULT IN DEBRIS FLOWS WITHIN AND DOWNSTREAM OF THE 2013 MOUNTAIN
FIRE BURN SCAR IN THE SAN JACINTO WILDERNESS. THE DEBRIS FLOW CAN
CONSIST OF ROCK...MUD...VEGETATION AND OTHER LOOSE MATERIALS.
* SOME LOCATIONS THAT WILL LIKELY EXPERIENCE FLOODING INCLUDE...
POWAY...RAMONA...ALPINE...VALLEY CENTER...TIERRASANTA...
ESCONDIDO...SAN MARCOS...SANTEE...SAN DIEGO COUNTRY ESTATES...
DESCANSO...PALOMAR MOUNTAIN...HWY 79 BETWEEN SANTA YSABEL AND
WARNER SPRINGS...SAN PASQUAL...HWY 78 BETWEEN RAMONA AND SANTA
YSABEL...LAKE HENSHAW...S7 - EAST GRADE RD...SCRIPPS RANCH...
LAKESIDE...PALOMAR MOUNTAIN STATE PARK AND HWY S2 BETWEEN HWY 79
AND HWY 78.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH.
&&
LAT...LON 3288 11661 3285 11705 3322 11718 3335 11684
3324 11658 3308 11665
$$
PG1 follow-up statement
750
WGUS76 KSGX 200251
FFSSGX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN DIEGO CA
751 PM PDT SUN JUL 19 2015
CAC073-200300-
/O.EXP.KSGX.FF.W.0013.000000T0000Z-150720T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN DIEGO CA-
751 PM PDT SUN JUL 19 2015
...THE FLASH FLOOD WARNING FOR CENTRAL SAN DIEGO COUNTY WILL EXPIRE
AT 800 PM PDT...
THE HEAVY RAIN HAS ENDED. HOWEVER...CONTINUING LIGHT RAIN SHOWERS
COULD CONTINUE TO PRODUCE MINOR FLOODING FOR THE NEXT SEVERAL HOURS.
LAT...LON 3288 11661 3285 11705 3322 11718 3335 11684
3324 11658 3308 11665
$$
PGThe office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 6:29 PM PDT | Areal Flood Advisory | SGX | Riverside, San Diego | 3 hr |
| Jul 19, 6:32 PM PDT | Areal Flood Advisory | SGX | San Diego | 4 hr |
| Jul 19, 9:12 PM PDT | Areal Flood Advisory | SGX | Orange, Riverside, San Bernardino | 6 hr |
Nearby
Flash Flood Warnings in California, 2015Every flash flood warning in 2015
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.