SDG&E Weather Briefing

Thursday, August 10, 2023

Safety Talking Point

Pause for a Second – Make Sure It’s Safe!

  • Regardless of what you are driving, your Circle of Safety should include a thorough check of your bin doors. 
  • Just a quick look and tug will reduce the chances of the bin door opening while you are driving. 
  • Bin doors can cause major injury or property damage when left unsecured. 
  • Make the “bin door check” a part of your Circle of Safety as well as securing all other items that could fall off of the vehicle while underway.

Executive Summary

  • Morning drizzle/light rain fades across northwestern portions of the territory, with partly cloudy skies expected this afternoon.
    • A stray shower cannot be ruled out this afternoon.
    • An isolated/shower storm is possible tomorrow over the mountains.
  • Mild temperatures persist through the weekend.
  • Dry weather and above average high temperatures is expected next week.
  • Breezy westerly wind gusts will be possible daily over mountain ridges & desert slopes.
  • The FPI will be Elevated for all inland districts through the end of the forecast period.

Forecast Discussion

This morning areas of drizzle/light rain were noted over OC and northwestern SD County, in line with expectations. This activity is currently filtering out of the region. Partly cloudy skies and mild temperatures are expected today across the area, though a stray shower cannot be ruled out this afternoon given the copious amounts of moisture. Over the next 36 hours moisture levels will drop across the county, ending the precipitation threat for the time being. Some instability will be present across the mountains tomorrow, and while an isolated shower/storm is possible, current thinking is that this is unlikely due to drier air aloft. Temperatures are expected to remain mild through the weekend whilst skies trend towards more sun than clouds. By the beginning of next week weak troughing will begin to be replaced by ridging. Models continue to diverge on the exact timing and strength of ridging; the remnants of Eugene will still be meandering in the region, with weak steering flow models will continue to struggle resolving this feature. Regardless, above average temperatures are expected beginning around the middle of next week. The hottest temperatures anomalies are expected away from the immediate coast. Dry weather is expected then with a continuation of daily breezy sea breeze winds over the usual wind prone areas. 

Fire Discussion

A continuation of cloud cover and mild temperatures is expected through this weekend as the remnants of Eugene linger nearby. As the end of the weekend approaches temperatures are expected to gradually warm whilst skies become more and more clear. Next week, a ridge of high pressure will attempt to build over the area, resulting in above average high temperatures for areas away from the immediate coast. Breezy westerly wind gusts are expected to continue daily over the usual wind prone areas. Grasses are fully cured; live fuel moisture remains seasonal. The FPI will be Elevated for inland districts through the end of the forecast period. Conditions that generally warrant a PSPS event are not forecast for the next seven days.

Today's Fire Potential Index (FPI)

ME RA EA NE OC NC BC CM
Elevated

12

Elevated

12

Elevated

12

Elevated

12

Normal

10

Normal

10

Normal

10

Normal

10

< 12 | Normal 12 - 13 | Elevated 14 | Elevated < 15 | Extreme

7-Day FPI Outlook

  Thu
8/10
Fri
8/11
Sat
8/12
Sun
8/13
Mon
8/14
Tue
8/15
Wed
8/16
ME Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

13

RA Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

13

EA Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

12

NE Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

12

OC Normal

10

Normal

10

Normal

10

Normal

11

Normal

11

Normal

11

Normal

11

NC Normal

10

Normal

10

Normal

10

Normal

10

Normal

11

Normal

11

Normal

11

BC Normal

10

Normal

10

Normal

10

Normal

10

Normal

11

Normal

11

Normal

11

CM Normal

10

Normal

10

Normal

10

Normal

10

Normal

11

Normal

11

Normal

11

Forecast Weather Legend

< 12 | Normal 12 - 14 | Elevated 15 - 17 | Extreme

Latest 7-Day Forecast

Thu
8/10
Fri
8/11
Sat
8/12
Sun
8/13
Mon
8/14
Tue
8/15
Wed
8/16
EXPECTED WEATHER CONDITIONS
partly cloudy
partly cloudy
sunny
partly cloudy
sunny
sunny
sunny
BEACHES
68/75 68/75 67/76 66/75 66/76 66/78 67/80
MESAS
67/77 66/78 66/79 64/79 64/80 65/82 66/85
MIRAMAR
67/78 65/78 64/79 63/79 64/80 64/82 65/84
INLAND ORANGE COUNTY
65/78 65/79 63/80 63/81 63/83 64/84 65/87
INLAND VALLEY
67/83 67/84 64/85 63/86 64/86 65/89 66/92
FOOTHILLS
62/84 62/84 58/87 58/88 59/90 61/94 63/97
MOUNTAINS
59/74 56/75 57/79 60/82 64/84 66/88 69/91
DESERTS
77/100 74/101 74/102 76/104 79/106 81/109 84/112
BACKCOUNTRY WINDS
25 25 25 25 25 25 30
CHANCE OF PRECIPITATION
10% 5% 0% 0% 0% 0% 0%

Forecast Weather Legend

High Heat (above 95F) Illness Prevention measures are mandated by Safety Standard G 8366: Pre-shift meeting to review preventive, cool down, and communication measures; Shade & 1 quart of cool water per hour per crew member required. Supervisors to observe for employee heat illnesses, or use a buddy system or regular communication with sole employees. Shading indicates Heat Illness Prevention (heat wave at or above 80F) measures are mandated by Safety Standard G 8366: Shade & 1 quart of cool water per hour per crew member required. Supervisors to observe for employee heat illinesses.
Shading Indicates low temperatures in this region are expected to be at 40 degrees Fahrenheit or lower Shading Indicates low temperatures in this region are expected to be at 32 degrees Fahrenheit or lower

Tide Report

LA JOLLA, SCRIPPS PIER, CALIFORNIA

AAA Almanac

SAN DIEGO, CALIFORNIA

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