Alert archive / California / Special Weather Statements in 2021
Special Weather Statement, NWS San Diego, CA
NWS San Diego, CA issued this special weather statement at Jul 18, 2021, 5:49 PM PDT for San Diego County, California. It was in force for 41 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 18, 2021, 5:49 PM PDT (00:49 UTC)
- Expired
- Jul 18, 2021, 6:30 PM PDT
- In force
- 41 min
- Issued by
- NWS San Diego, CA
County San Diego County, CA
The radar
The San Diego radar (KNKX), 85 km from the middle of the area, began a volume at 00:48 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, 0.8 hours before the alert went out and 102 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
- 2265 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
334
WWUS86 KSGX 190049
SPSSGX
Special Weather Statement
National Weather Service San Diego CA
549 PM PDT Sun Jul 18 2021
CAZ062-190130-
San Diego County Deserts CA-
549 PM PDT Sun Jul 18 2021
...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL SAN DIEGO COUNTY
UNTIL 630 PM PDT...
At 548 PM PDT, Doppler radar was tracking a strong thunderstorm near
Fish Creek Wash, or 13 miles south of Hwy 78 Between Borrego Springs
Rd And Ocotillo Wells, moving north at 15 mph.
Pea size hail and wind gusts up to 50 mph will be possible with this
storm. Minor flooding of normally dry washes is also possible.
Locations impacted include...
Hwy S2 Between Agua Caliente And Canebrake, Hwy S2 Vallecito Creek
Rd, Fish Creek Wash, Ocotillo Wells, Hwy S2 Between Canebrake And
Imperial County Line and Canebrake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.
&&
LAT...LON 3308 11608 3308 11609 3307 11610 3284 11611
3282 11622 3308 11633 3312 11608
TIME...MOT...LOC 0048Z 162DEG 13KT 3297 11614
$$
SSThe office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 6:12 PM PDT | Areal Flood Advisory | SGX | San Bernardino | 32 min |
| Jul 18, 6:38 PM PDT | Areal Flood Advisory | SGX | San Bernardino | 52 min |
| Jul 18, 6:44 PM PDT | Flash Flood Warning | SGX | San Bernardino | 31 min |
Nearby
Special Weather Statements in California, 2021Every special weather statement in 2021
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.