Quantitative Precipitation Forecast


FSUS46 KLOX 042124
QPSLOX

Quantitative Precipitation Forecast
National Weather Service Los Angeles/Oxnard CA
223 PM PDT Sat May 04 2024

Precipitation forecasts in inches are provided in 3-hour
increments until 0500 followed by 6-hour increments until 1700.
Thunderstorm chances cover up to 1700 on day 1 only.

Light rainfall amounts greater than zero but less than a tenth of an
inch are shown as lgt.

The discussion covers the period from: Sat May 04 2024 through Fri May 10 2024.

&&

                                    17-20  20-23  23-02  02-05  |  05-11  11-17

San Luis Obispo County...

LSRC1:Cambria                          lgt    0.0    0.0    0.0   |   0.0   0.0
SMRC1:Santa Margarita                  lgt    0.0    0.0    0.0   |   0.0   0.0
NIPC1:Lopez Lake                       lgt    lgt    0.0    0.0   |   0.0   0.0

1-Hr Rates:              Coasts/Valleys   Foothills/Mountains
Expected Peak (in/hr):   0.05-0.10        0.05-0.15
Probability 0.50+ in/hr: <5%              <5%
Probability 1.00+ in/hr: <5%              <5%

Peak rates expected to occur between: 1200-1800

Chance of Thunderstorms: 0%

&&                                    17-20  20-23  23-02  02-05  |  05-11  11-17

Santa Barbara County...

SIYC1:Santa Maria                      lgt    lgt    0.0    0.0   |   0.0   0.0
SBTC1:Santa Barbara Potrero            lgt    lgt    0.0    0.0   |   0.0   0.0
GBRC1:Gibraltar Dam                    lgt    lgt    0.0    0.0   |   0.0   0.0
SMCC1:San Marcos Pass                  lgt    lgt    0.0    0.0   |   0.0   0.0
SBFC1:Santa Barbara City               lgt    lgt    0.0    0.0   |   0.0   0.0

1-Hr Rates:              Coasts/Valleys   Foothills/Mountains
Expected Peak (in/hr):   0.01-0.03        0.05-0.15
Probability 0.50+ in/hr: <5%              10%
Probability 1.00+ in/hr: <5%              <5%

Peak rates expected to occur between: 1400-1700

Chance of Thunderstorms: 0%

&&                                    17-20  20-23  23-02  02-05  |  05-11  11-17

Ventura County...

FGWC1:Fagan Canyon                     lgt    0.0    0.0    0.0   |   0.0   0.0
HRCC1:Hopper Canyon                    lgt    lgt    0.0    0.0   |   0.0   0.0
MTDC1:Matilija Dam                     lgt    lgt    0.0    0.0   |   0.0   0.0
VTUC1:Ventura City                     lgt    lgt    0.0    0.0   |   0.0   0.0
MORC1:Moorpark                         lgt    0.0    0.0    0.0   |   0.0   0.0
CRXC1:Circle X Ranch                   lgt    lgt    0.0    0.0   |   0.0   0.0

1-Hr Rates:              Coasts/Valleys   Foothills/Mountains
Expected Peak (in/hr):   0.01-0.03        0.01-0.05
Probability 0.50+ in/hr: <5%              <5%
Probability 1.00+ in/hr: <5%              <5%

Peak rates expected to occur between: 1400-1700

Chance of Thunderstorms: 0%

&&                                    17-20  20-23  23-02  02-05  |  05-11  11-17

Los Angeles County...

WFKC1:West Fork Heliport               0.0    0.0    0.1    lgt   |   0.0   0.0
BDDC1:Big Dalton Dam                   0.0    lgt    0.1    lgt   |   0.0   0.0
PCDC1:Pacoima Dam                      lgt    0.0    0.0    0.0   |   0.0   0.0
FLTC1:La Canada Flintridge             0.0    0.0    lgt    lgt   |   0.0   0.0
SAUC1:Saugus                           0.0    0.0    0.0    0.0   |   0.0   0.0
CQT:Downtown LA                        0.0    0.0    0.0    0.0   |   0.0   0.0
MLUC1:Malibu Big Rock Mesa             0.0    0.0    0.0    0.0   |   0.0   0.0

1-Hr Rates:              Coasts/Valleys   Foothills/Mountains
Expected Peak (in/hr):   0.01-0.03        0.10-0.20
Probability 0.50+ in/hr: <5%              15%
Probability 1.00+ in/hr: <5%              <5%

Peak rates expected to occur between: 2000-2300

Chance of Thunderstorms: 0%

&&

DISCUSSION:

An unseasonably cold storm system will brush the area over the
weekend. There a high-to-definite chance of rain across the area
this afternoon through early Sunday. Rainfall amounts will likely be
around a quarter inch or less, except a quarter to half inch across
the Coast Range of Central California and into the San Gabriel
Mountains.

NOTE: This a special issuance due to the threat of rain. Routine
issuances of this product will resume Nov 1. If widespread rain is
expected before then additional forecasts will be sent out.

$$