NZUS96 KMTR 150143 RRA WRKTA1 ZOA CWSU HUB AVIATION FORECAST: UPDATED: 15/0200Z NEXT UPDATE: 15/18Z SFO BAY FORECAST: TYPICAL SUMMER CONDS PERSIST OVR SF BAY AREA...WITH RTN OF STRATUS NEAR 05Z AND BURN OFF BY LATE MORNING...18Z. DRY AIR AT SFC AND LACK OF ANY SIGNIFICANT UPSTREAM TROF SEEMS TO BE PREVENTING AN EARLY RETURN OF STRATUS. WITH THAT SAID...PIECES OF STRATUS WILL ADVECT OVR THE SFO APPROACH WITH SCT CLDS BY 03Z AND A CIG FORMING SOMETIME AROUND 06Z. LOCALLY...FAIRLY ZONAL FLOW CONTS NXT 24HRS WITH A TROF OVR PAC NW. THIS TROF WILL LIKELY BE TOO FAR AWAY TO GENERATE A SUBSTANTIALLY LATER CLEARING THAN YDA. SO...EXPECT CIGS TO CLEAR NEAR 18Z. WNDS WILL BE WLY NEAR 10KT UNTIL 21Z AND THEN INCR TO 20KT WITH A SEABREEZE. HAZARDS: TURBULENCE-NO MOD TURB OUTSIDE CONV ACTVTY OVR ZOA AIRSPACE NXT 24 HRS. ICING-NO MOD ICING OUTSIDE CONV ACTVTY OVR ZOA AIRSPACE NXT 24 HRS. IFR/MVFR- FIRES HAVE DMNSHD SOME OVR NRN CA AND THIS IS HELPING TO IMPROVE CONDS FOR AVIATION ACROSS CA/NV. WORST VISIBILITY WILL CONT TO BE ADJACENT TO LARGEST FIRES OVR NORTHERN CA...WITH SOME VIS BLW 3SM NEAR RBL-RDD. OVERALL WESTERLY LO-LVL FLOW WILL CAUSE VIS RESTRICTIONS IN THE 4-6SM RANGE OVR THE LAKE TAHOE-WRN NV-RNO AREA OVR THE NEXT 24HRS. STRATUS WILL FORM BY 06Z MOST CSTL LOCATIONS AND CLEAR BY 18Z. CONVECTIVE - MONSOONAL FLOW RESULTED IN HI DWPTS AND SCT TS OVR SRN SIERRAS TDA. AS TROF SWINGS TOWARD PAC NW...FLOW WILL SHFT A BIT MORE WLY OV ZOA...CUTTING OFF SOME MOISTURE TO THE AREA AND REDUCING TS COVERAGE. SO...ISOL TS WILL FORM AROUND 20Z OVR SRN SIERRAS AND DSPT BY 03Z. ZOA PACING AIRPORTS FCST: RNO- VFR. 27015G24KT AFT 21Z. LAS- VFR. VCTS AFT 20Z. PHX- VFR. LAX- VFR. BKN011 11Z-16Z. NK