SDG&E Weather Briefing

Monday, September 16, 2019

Safety Talking Point

Be Prepared - Protect Yourself

  • Make sure you have an Emergency Reporting Instructions wallet card
  • Every facility at SDG&E has an Emergency Action and Fire Prevention Plan that highlights what to do in an emergency while at your facility. It lays out the roles and responsibilities of your Emergency Response Team (ERT)
  • Ask questions and clarify your role during an emergency

Executive Summary

  • There is a slight chance of thunderstorms later today in all districts; minimal impact expected at this time
  • A cooling trend will bring mild weather through the workweek with more extensive morning low clouds
  • Gusty west winds will persist through much of the week on mountain ridges and adjacent desert slopes
  • Warmer weather will accompany weak easterly winds this weekend, similar to what occurred last week
  • The FPI will be Normal along the coast and Elevated inland this week; increasing some this weekend

Forecast Discussion

A series of low pressure troughs over the West Coast will bring stronger onshore flow and a cooling trend today through Thursday. High temperatures today will be in the 70s and 80s west of the mountains, with all areas seeing temperatures in the 70s by mid to late week. Gusty west winds will persist on the mountain ridges and adjacent desert slopes, strongest in the evenings. No impacts expected from these winds. There is a slight chance of thunderstorms ahead of the low pressure system today, though impacts are forecast to be minimal if any thunderstorm develops. Winds will become weakly easterly by this weekend, which will bring warming and drying to the service territory.

Fire Discussion

The FPI will be Elevated inland and Normal for the coastal districts through the next seven days. The greatest fire potential this week will be on the mountain ridges and adjacent desert slopes where gusty west winds and low humidity will persist.

Today's Fire Potential Index (FPI)

ME RA EA NE OC NC BC CM
Elevated

13

Elevated

13

Elevated

12

Elevated

12

Normal

11

Normal

10

Normal

10

Normal

10

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

7-Day FPI Outlook

  Mon
9/16
Tue
9/17
Wed
9/18
Thu
9/19
Fri
9/20
Sat
9/21
Sun
9/22
ME Elevated

13

Elevated

13

Elevated

13

Elevated

13

Elevated

13

Elevated

13

Elevated

13

RA Elevated

13

Elevated

13

Elevated

13

Elevated

13

Elevated

13

Elevated

13

Elevated

13

EA Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

13

Elevated

13

NE Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

12

Elevated

13

Elevated

13

OC Normal

11

Normal

11

Normal

11

Normal

11

Normal

11

Elevated

12

Elevated

12

NC Normal

10

Normal

10

Normal

10

Normal

10

Normal

10

Normal

11

Normal

11

BC Normal

10

Normal

10

Normal

10

Normal

10

Normal

10

Normal

11

Normal

11

CM Normal

10

Normal

10

Normal

10

Normal

10

Normal

10

Normal

11

Normal

11

Forecast Weather Legend

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

Latest 7-Day Forecast

Mon
9/16
Tue
9/17
Wed
9/18
Thu
9/19
Fri
9/20
Sat
9/21
Sun
9/22
EXPECTED WEATHER CONDITIONS
partly cloudy
sunny
sunny
sunny
sunny
sunny
sunny
BEACHES
65/76 65/75 62/73 64/73 64/74 64/74 62/75
MESAS
66/81 66/79 64/77 64/76 64/77 64/78 63/80
MIRAMAR
65/83 63/82 62/79 62/77 62/78 62/82 62/81
INLAND ORANGE COUNTY
62/82 59/80 58/79 57/77 57/79 58/81 58/83
INLAND VALLEY
66/86 63/85 62/82 61/79 60/80 61/84 60/84
FOOTHILLS
65/88 55/85 56/83 52/77 52/79 54/85 56/86
MOUNTAINS
63/79 58/77 55/78 51/69 51/73 54/78 56/80
DESERTS
77/102 72/99 67/96 64/94 62/94 65/98 69/101
BACKCOUNTRY WINDS
35 35 35 35 25 30 25
CHANCE OF PRECIPITATION
10% 0% 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

Almanac

SAN DIEGO, CALIFORNIA

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