SDG&E Weather Briefing

Thursday, February 20, 2020

Safety Talking Point

An Open Invitation to Danger:  For every action there is a reaction, and for every bad decision there may be consequences.  Make the right decisions to ensure the safety of yourself and your crew.  If you encounter a situation that you are unsure of, stop and take a time out to think about the safest way to proceed.  If you think the task may require more help, make the call.  Anyone, no matter the job classification, can stop the job for an unsafe condition.  Always better to be safe than sorry.

Executive Summary

  • Warm and dry today through Friday with weak Santa Ana winds in the backcountry
  • Much cooler with periods of rain and high elevation snow on Saturday; dry Sunday
  • Santa Ana winds will bring gusty backcountry winds on Tuesday and Wednesday
  • The FPI will remain Normal in all districts through the next seven days

Forecast Discussion

Weak Santa Ana winds will bring warm, dry weather to the service territory today through Friday. Daytime temperatures will climb into the 70’s in many areas under mostly sunny skies. Wind gusts of 25-35 mph are forecast across the wind-prone areas of the backcountry. No system impacts expected.

A cutoff low pressure system will bring much cooler weather and scattered showers on Saturday. Rainfall amounts are looking a little heavier than earlier forecasts indicated with 0.10-0.25” along the coast and 0.25-0.50” inland, locally up to 1.00 inch in the mountains. A few lightning strikes are possible Saturday afternoon as the coldest air aloft moves over the service territory, though system impacts should be minimal. Precipitation will fall as snow in the highest elevations, mainly above 5,500 ft. Some gusty west winds are likely on the highest ridges and desert slopes, but forecast wind speeds are well within typical values for this time of year and are not expected to cause any impacts.

The storm quickly departs Saturday night, with drier weather returning on Sunday. The jet stream will then drive cold air into the Great Basin on Tuesday and Wednesday of next week, setting the stage for moderate to locally strong Santa Ana winds across our backcountry. This will bring much warmer weather to the service territory along with gusty winds in the usual wind-prone areas. High temperatures are forecast to climb into the 70's and low 80's next week.

Fire Discussion

The FPI will remain Normal through the next seven days. 

Today's Fire Potential Index (FPI)

ME RA EA NE OC NC BC CM
Normal

8

Normal

8

Normal

6

Normal

6

Normal

6

Normal

6

Normal

6

Normal

6

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

7-Day FPI Outlook

  Thu
2/20
Fri
2/21
Sat
2/22
Sun
2/23
Mon
2/24
Tue
2/25
Wed
2/26
ME Normal

8

Normal

8

Normal

3

Normal

6

Normal

7

Normal

10

Normal

9

RA Normal

8

Normal

8

Normal

3

Normal

6

Normal

7

Normal

10

Normal

9

EA Normal

6

Normal

6

Normal

3

Normal

5

Normal

6

Normal

10

Normal

9

NE Normal

6

Normal

6

Normal

3

Normal

5

Normal

6

Normal

10

Normal

9

OC Normal

6

Normal

5

Normal

3

Normal

5

Normal

6

Normal

8

Normal

8

NC Normal

6

Normal

5

Normal

3

Normal

5

Normal

6

Normal

8

Normal

8

BC Normal

6

Normal

5

Normal

3

Normal

5

Normal

6

Normal

8

Normal

8

CM Normal

6

Normal

5

Normal

3

Normal

5

Normal

6

Normal

8

Normal

8

Forecast Weather Legend

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

Latest 7-Day Forecast

Thu
2/20
Fri
2/21
Sat
2/22
Sun
2/23
Mon
2/24
Tue
2/25
Wed
2/26
EXPECTED WEATHER CONDITIONS
sunny
sunny
sunny
sunny
sunny
windy
windy
BEACHES
52/70 52/66 55/59 49/62 52/65 52/73 50/76
MESAS
47/72 50/70 51/61 50/65 48/69 49/76 48/78
MIRAMAR
46/75 50/74 50/61 49/65 48/69 48/80 48/82
INLAND ORANGE COUNTY
48/75 51/73 48/60 49/65 49/70 50/80 48/82
INLAND VALLEY
46/76 50/74 49/59 48/66 47/71 47/79 46/81
FOOTHILLS
45/75 48/72 45/55 44/65 43/70 42/77 44/79
MOUNTAINS
45/62 47/62 40/46 41/58 43/62 44/58 41/57
DESERTS
47/77 50/78 46/66 46/76 48/79 47/78 44/78
BACKCOUNTRY WINDS
30 25 35 25 25 45 40
CHANCE OF PRECIPITATION
0% 0% 100% 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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