More rain in fore­cast this week for SLO County

The Tribune (SLO) - - Local - BY JOHN LIND­SEY

San Luis Obispo County saw plenty of rain last week, and more is on the way.

A se­ries of sur­face lows and frontal sys­tems will move into the Cen­tral Coast start­ing Mon­day and con­tin­u­ing into Thurs­day. The first low- pres­sure sys­tem will pro­duce strong to gale-force (25 to 38 mph) winds and rain show­ers on Mon­day.

To­tal rain­fall amounts are fore­cast to range be­tween 0.25 and 0.50 of an inch.

An­other, stronger sys­tem will pro­duce pe­ri­ods of mod­er­ate gale-force to fresh gale-force (32 to 46 mph with gust 50 mph) southerly winds along our coast­line and mod­er­ate to heavy rain through­out the Cen­tral Coast, es­pe­cially along the southerly fac­ing slopes.

Tues­day’s storm is ex­pected to pro­duce be­tween 1.25 and 2.50 inches of rain.

The third and most in­tense of the low-pres­sure sys­tems will gen­er­ate gale-force to fresh gale­force (32 to 46 mph with gust 55 mph) southerly winds along our coast­line later on Wed­nes­day into Thurs­day morn­ing.

That sys­tem is fore­cast to pro­duce be­tween 1.50 and 4.00 inches of rain with higher amounts in the Santa Lu­cia moun­tains.

If fore­cast mod­els ver­ify, be­tween 3 and 7 inches of rain is fore­cast Sun­day evening through Thurs­day with Big Sur re­ceiv­ing as much as 10 inches of rain over this pe­riod.

The strong­est winds and heav­i­est rain is ex­pected on Wed­nes­day night into Thurs­day morn­ing.

Please see https://twit­­for rain­fall graph­ics.

Look­ing ahead to the Martin Luther King Jr. hol­i­day week­end, Santa Lu­cia (north­east­erly) winds, dry weather and mostly clear to partly cloudy skies are fore­cast, with gen­er­ally aboveav­er­age daily tem­per­a­tures.


A pro­longed pe­riod of gale-force southerly winds along our coast­line will con­tinue through Thurs­day. These winds will gen­er­ate 6- to 8-foot (180de­gree, shal­low-wa­ter) seas from Sun­day night into Thurs­day.

Com­bined with these southerly seas will be a 7to 9-foot north­west­erly (295-de­gree, deep-wa­ter) swell (with a 13- to 23sec­ond pe­riod) Sun­day af­ter­noon and night, in- creas­ing to 10 to 12 feet (with an 18- to 20-se­cond pe­riod) on Mon­day.

This north­west­erly swell will de­crease to 9 to 11 feet (with a 16- to 18sec­ond pe­riod) on Tues­day.

An 8- to 10-foot north­west­erly (295-de­gree, deep-wa­ter) swell (with a 15- to 19-se­cond pe­riod) is fore­cast along our coast­line on Wed­nes­day.

A 13- to 15-foot west­north-west­erly (285-de­gree, deep-wa­ter) swell (with a 16- to 18-se­cond pe­riod) is fore­cast along our coast­line on Thurs­day, de­creas­ing to 11 to 13 feet (with a 14- to 16-se­cond pe­riod) on Fri­day.

High-swell con­di­tions should con­tinue through the fol­low­ing week.

John Lind­sey’s col­umn is spe­cial to The Tri­bune. He is PG&E’s Di­ablo Canyon marine me­te­o­rol­o­gist and a me­dia re­la­tions rep­re­sen­ta­tive. Email him at [email protected] or fol­low him on Twit­ter: @PGE_John.

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