469 FXUS 07KRnteragency Fire Forecast and Warning Unit Afternoon General Forecast 1530 PDT Thursday, August 20, 1998 Discussion: A weak trough of low pressure is over the north state this afternoon, and a few cumulus are starting to build for what will probably be isolated evening thunderstorms. The trough will move out of N CA on Friday, bringing mostly clear skies, warmer temps and light winds through the weekend. Another weak low will approach the coast early next week for a return to near normal temps and moderate south to westerly breezes. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ZONE 1 -- COASTAL STRIP - FROM COAST TO 10 MILES INLAND Tonight: Sky/Weather: Clear to partly cloudy. CWR: Near 0% LAL: 1. Wind: Valleys/Lower Slopes: NW 5-15 mph, decreasing to light and variable after sunset. Upper Slopes/Ridges: W to NW 7-15 mph Friday: Sky/Weather: Areas of morning fog/low clouds, becoming mostly sunny in the afternoon. Max Temps: 60s to mid 70s Min Humidity: 45-60% CWR: 0%. LAL: 1. Wind: Valleys/Lower Slopes: Light and variable in the morning, increasing to NW to North 7- 15 mph in the afternoon. Upper Slopes/Ridges: NW to N 8-18 mph. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ZONE 2 -- SIX RIVERS NF, HOOPA, AND ALL OF HUU EAST OF THE COASTAL STRIP ZONE 3 -- WESTERN KLAMATH NF ZONE 4 -- CENTRAL SISKIYOU COUNTY, INCLUDING SCOTT AND SHASTA VALLEYS ZONE 5 -- SISKIYOU CO. FROM CASCADE CREST EASTWARD AND HWY-89 NORTHWARD AND MODOC COUNTY EXCEPT THE SURPRISE VALLEY ZONE 6 -- ALL OF TRINITY NF, AND CDF AREAS OF EASTERN TRINITY COUNTY (ALSO INCLUDES SW SHU/NW TGU ABOVE 2000 FEET ZONE 7 -- SHASTA NF FROM MT EDDY-HWY 89 SOUTHWARD; INCLUDES WHISKEYTOWN NP AND FRENCH GULCH AREA ZONE 10 -- MENDOCINO COUNTY EAST OF THE COASTAL STRIP, INCLUDING COVELO AND UPPER LAKE RD'S OF MENDOCINO NF ZONE 11 -- CORNING AND STONYFORD RD'S OF MENDOCINO NF AND WESTERN TGU WHERE ABOVE 2000 FT Tonight: Sky/Weather: Partly cloudy with a 30% chance of evening showers or thunderstorms Zones 3 through 7, decreasing to 15-20% in Zones 2, 10, and 11. CWR: 20% north to 10% south this evening. LAL: 2-3 Wind: Valleys/Lower Slopes: SW to NW 5-15 mph, becoming light and variable after sunset. Upper Slopes/Ridges: S to W 7-15 mph. Friday: Sky/Weather: Mostly sunny. Patchy night/morning coastal fog and low clouds. Max Temps: Mid 70s to lower 90s. Min Humidity: 19-36%. CWR: Near 0% LAL: 1. Wind: Valleys/Lower Slopes: Increasing to SW to NW 5-12 mph in afternoon. Upper Slopes/Ridges: S to W 6-15 mph. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ZONE 8 -- EASTERN SHASTA, TEHAMA, AND BUTTE COUNTIES ABOVE 2000 FT, WESTERN 2/3 OF LASSEN NP, AND PLUMAS CO. WEST OF EVANS PK-GRIZZLY PK- BECKWOURTH PK LINE ZONE 9 -- LASSEN COUNTY EXCEPT THE BLM AREA COVERED BY RENO FIRE WX AND PLUMAS COUNTY EAST OF AN EVANS PKGRIZZLY PK-BECKWOURTH PK LINE Tonight: Sky/Weather: Partly cloudy with a chance of afternoon/evening thunderstorms: 20% north end to 5% south end of Zones. CWR: 10% north end to under 5% south end both zones. LAL: 2 until sunset, then LAL 1. Wind: Valleys/Lower Slopes: Variable to 7 mph morning, mainly SE to SW 7-15 mph in afternoon. Upper Slopes/Ridges: SE to SW 8-16 mph. Friday: Sky/Weather: Scattered clouds at times, mainly far north, otherwise sunny. Max Temps: Mid 70s to upper 80s. Min Humidity: 17-33%. CWR: 0%. LAL: 1. Wind: Valleys/Lower Slopes: SW to NW increasing to 7-15 mph in afternoon. Upper Slopes/Ridges: S to W 8-18 mph. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ZONE 12 -- SACRAMENTO VALLEY AND FOOTHILLS (SHASTA, TEHAMA, GLENN, AND BUTTE COUNTIES BELOW 2000 FT) Tonight: Sky/Weather: Partly cloudy skies becoming mostly fair after sunset. CWR: Near 0% LAL: 1. Wind: SE to S 7-14 mph, decreasing to light and variable after sunset. Friday: Sky/Weather: Sunny skies. Max Temps: Upper 80s to mid 90s Min Humidity: 19-34% CWR: 0%. LAL: 1. Wind: Light and variable in the morning, increasing to 612 mph in the afternoon. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Saturday: Sky/Weather: Mostly sunny with increasing fog near the coast and in sheltered drainages. Max Temps: warmer 2-5 degrees Min Humidity: little change to lower 4% CWR: 0% LAL: 1. Wind: Valleys/Lower Slopes: SW to NW, increasing to 5-12 mph in afternoon. Upper Slopes/Ridges: W to NW 6-15 mph. Outlook for Sunday through Tuesday: Night and morning coastal fog/low clouds. Mostly fair skies inland, with temps rising to 3-8 degrees above normal Sunday, then cooling Mon and Tues to just above normal. LAL 1. Light and variable winds Sunday will turn to S to SW 5-15 mph by Tues. 6-10 day outlook August 26 through August 30: Temperatures a little above normal, precipitation near normal. END/Svetz