Clear skies, increased moisture from recent storm systems, and diurnal cooling associated with the presence of a retrograding upper level high pressure area over the central California region allowed for radiational nighttime/morning dense fog to develop in parts of the San Joaquin Valley.

Dense Fog in E CENTRAL S.J. VALLEY, CALIFORNIA
From 05-DEC-16 23:45:00 to 06-DEC-16 07:53:00 (PST-8)
Reported by: ASOS

Between 2345 PST and 0753 PST the Fresno Air Terminal (KFAT) ASOS reported visibility less than 1/4 mile.

Dense Fog in SE S.J. VALLEY, CALIFORNIA
From 05-DEC-16 22:55:00 to 06-DEC-16 08:30:00 (PST-8)
Reported by: AWOS

Between 2255 PST and 0830 PST the Visalia Municipal Airport (KVIS) AWOS reported visibility less than 1/4 mile.

Dense Fog in SE S.J. VALLEY, CALIFORNIA
From 06-DEC-16 06:00:00 to 06-DEC-16 06:00:00 (PST-8)
Reported by: Broadcast Media

Several school districts cancelling bus service and/or opening late due to dense fog.

Dense Fog in W CENTRAL S.J. VALLEY, CALIFORNIA
From 07-DEC-16 06:00:00 to 07-DEC-16 06:00:00 (PST-8)
Reported by: Broadcast Media

Several school districts cancelling bus service and/or opening late due to dense fog.

Dense Fog in W CENTRAL S.J. VALLEY, CALIFORNIA
From 06-DEC-16 06:00:00 to 06-DEC-16 06:00:00 (PST-8)
Reported by: Broadcast Media

Several school districts cancelling bus service and/or opening late due to dense fog.

Dense Fog in E CENTRAL S.J. VALLEY, CALIFORNIA
From 06-DEC-16 06:00:00 to 06-DEC-16 06:00:00 (PST-8)
Reported by: Broadcast Media

Several school districts cancelling bus service and/or opening late due to dense fog.

Dense Fog in SW S.J. VALLEY, CALIFORNIA
From 06-DEC-16 06:00:00 to 06-DEC-16 06:00:00 (PST-8)
Reported by: Broadcast Media

Several school districts cancelling bus service and/or opening late due to dense fog.

Dense Fog in E CENTRAL S.J. VALLEY, CALIFORNIA
From 07-DEC-16 06:00:00 to 07-DEC-16 06:00:00 (PST-8)
Reported by: Broadcast Media

Several school districts cancelling bus service and/or opening late due to dense fog.

Dense Fog in SW S.J. VALLEY, CALIFORNIA
From 07-DEC-16 06:00:00 to 07-DEC-16 06:00:00 (PST-8)
Reported by: Broadcast Media

Several school districts cancelling bus service and/or opening late due to dense fog.

Dense Fog in SE S.J. VALLEY, CALIFORNIA
From 07-DEC-16 06:00:00 to 07-DEC-16 06:00:00 (PST-8)
Reported by: Broadcast Media

Several school districts cancelling bus service and/or opening late due to dense fog.

Dense Fog in W CENTRAL S.J. VALLEY, CALIFORNIA
From 06-DEC-16 07:22:00 to 06-DEC-16 07:22:00 (PST-8)
Reported by: Law Enforcement

California Highway Patrol reported visibilities less than 1/4 mile in Dos Palos.

Dense Fog in W CENTRAL S.J. VALLEY, CALIFORNIA
From 06-DEC-16 08:04:00 to 06-DEC-16 08:04:00 (PST-8)
Reported by: Law Enforcement

California Highway Patrol reported visibilities around 800 feet in Selma.

Dense Fog in SW S.J. VALLEY, CALIFORNIA
From 06-DEC-16 05:34:00 to 06-DEC-16 05:34:00 (PST-8)
Reported by: Law Enforcement

California Highway Patrol reported law enforcement pacing was taking place on State Route 198 between Tulare county line (near Highway 99) and State Route 43.

Dense Fog in E CENTRAL S.J. VALLEY, CALIFORNIA
From 06-DEC-16 03:35:00 to 06-DEC-16 07:30:00 (PST-8)
Reported by: ASOS

Between 0335 PST and 0730 PST the Merced Regional Airport (KMCE) ASOS reported visibility less than 1/4 mile.

Dense Fog in E CENTRAL S.J. VALLEY, CALIFORNIA
From 06-DEC-16 04:15:00 to 06-DEC-16 07:45:00 (PST-8)
Reported by: AWOS

Between 0415 PST and 0745 PST the Merced Castle Airport (KMER) AWOS reported visibility less than 1/4 mile.

Dense Fog in E CENTRAL S.J. VALLEY, CALIFORNIA
From 05-DEC-16 19:30:00 to 06-DEC-16 07:35:00 (PST-8)
Reported by: ASOS

Between 0415 PST and 0745 PST the Madera Airport (KMAE) ASOS reported visibility less than 1/4 mile.

Dense Fog in SW S.J. VALLEY, CALIFORNIA
From 06-DEC-16 00:20:00 to 06-DEC-16 08:20:00 (PST-8)
Reported by: ASOS

Between 0020 PST and 0820 PST the Hanford Municipal Airport (KHJO) ASOS reported visibility less than 1/4 mile.

Dense Fog in SE S.J. VALLEY, CALIFORNIA
From 06-DEC-16 22:35:00 to 07-DEC-16 10:20:00 (PST-8)
Reported by: AWOS

Between 2235 PST and 1020 PST the Visalia Municipal Airport (KVIS) AWOS reported visibility less than 1/4 mile.

Dense Fog in SW S.J. VALLEY, CALIFORNIA
From 06-DEC-16 21:50:00 to 07-DEC-16 09:10:00 (PST-8)
Reported by: ASOS

Between 2150 PST and 0910 PST the Hanford Municipal Airport (KHJO) ASOS reported visibility less than 1/4 mile.

Dense Fog in E CENTRAL S.J. VALLEY, CALIFORNIA
From 07-DEC-16 07:50:00 to 07-DEC-16 08:10:00 (PST-8)
Reported by: ASOS

Between 0750 PST and 0810 PST the Merced Regional Airport (KMCE) ASOS reported visibility less than 1/4 mile.

Dense Fog in E CENTRAL S.J. VALLEY, CALIFORNIA
From 07-DEC-16 05:35:00 to 07-DEC-16 07:45:00 (PST-8)
Reported by: AWOS

Between 0535 PST and 0745 PST the Merced Castle Airport (KMER) AWOS reported visibility less than 1/4 mile.

Dense Fog in E CENTRAL S.J. VALLEY, CALIFORNIA
From 07-DEC-16 01:55:00 to 07-DEC-16 09:53:00 (PST-8)
Reported by: ASOS

Between 0155 PST and 0953 PST the Fresno Air Terminal (KFAT) ASOS reported visibility less than 1/4 mile.