Daily Report - Yosemite National Park
Tuesday, October 3rd, 2017
Today: Sunny. Highs 54 to 64 at 5000 feet...45 to 55 at 8000 feet.
Tonight: Mostly clear. Near the crest, a 40 percent chance of snow showers in the evening. Lows 33 to 43 at 5000 feet...22 to 32 at 8000 feet.
Tomorrow: Sunny. Highs 57 to 67 at 5000 feet...50 to 58 at 8000 feet.
Additional Point Forecast Weather Links:
NEW AND HAPPENING TODAY
There are no new submissions for today, Tuesday, October 3rd, 2017.
Yosemite Forum Tuesday, October 10
"How - and why - Yosemite changed America" by Dr. Craig Jones, University of Colorado, Boulder
The national park concept first appeared in 1864 in Yosemite. Was this because Yosemite just happened to be the first large glacial gorge in the Sierra to gain national attention? Or is Yosemite in fact special, and if so, why? This talk will examine Yosemite’s influence in shaping American culture, and derives from Dr. Jones’ new book “The mountains that remade America: Science, society, and the Sierra Nevada”.
The Forum will take place Tuesday, October 10th from 3:30 to 4:30 pm in the Yosemite Valley Auditorium. Please contact Greg Stock at 379-1420 for additional information. (G. Stock)
2017 Was A Record Water Year On The Merced River
The total amount of water flowing past the USGS Merced River Pohono Bridge gauge in water year 2017 was the most recorded since gauge installation in 1916 (101 years of record). Flows totaled 1.16 million acre-feet surpassing the previous record of 1.06 million acre-feet recorded in 1983. The water year is defined as October 1st of the previous year through September 30th of the current year. Other large years in descending order were 1995, 2011, and 1969. (J. Roche)
Yosemite Hydroclimate Conference Thursday & Friday
Yosemite National Park is pleased to host the 17th annual Yosemite Hydroclimate conference. The event features talks on climate and hydrology research in Yosemite and the Sierra Nevada Mountains, and related discussion of drought, forest fire and wildlife habitat.
The Yosemite Hydroclimate Conference will be held October 5th and 6th in the Garden Terrace Room at Yosemite Valley Lodge. All are welcome. The agenda can be found at:
Fire Update September 29th, 2017
There are multiple fires burning in Yosemite National Park's wilderness. Weather has moderated with lower temperatures and higher relative humidities. Updates will be issued on Fridays.
Location: 1 mile east of Yosemite Ski and Snowboard Area and 3/4 mile south of Glacier Point Road
Size: 6,340 acres Cause: Lightning Containment: 85% Fuels: Red fir
Fire activity was minimal yesterday due to cooler temperatures. Crews will continue to monitor. Glacier Point road is open, subject to smoke along the road from Badger Pass to Sentinel Dome Parking Area.
Location: .75 miles east of the community of Wawona
Size: 6,970 acres Cause: Lightning Containment: 85% Fuels: Mixed conifer and red fir
Fire remains quiet near the community of Wawona on the west and south flank of the fire. Sections of the north flank and the entire east flank are continuing to burn in the wilderness Fire activity has been minimal this week.
Location: North Side of Hetch Hetchy Reservoir
Size: 1/2 acre Cause: Lightning Spread Potential: Low Fuels: Sparse ground fuels
Location: Right on Porcupine creek
Size: 1/10 acre Cause: Lightning Spread Potential: Low Fuels: Ground fuels
Single green tree burning at the base with 10x10 ground fire with continuous wet fuels.
Location: N 37° 40.391' x W 119° 32.505' elevation of 7,570'
Size: 1/10 acre Cause: Lightning Spread Potential: Low Fuels: Ground fuels
On north aspect of the ridge in a lightning struck snag with some ground fuel on fire. Empire fire operations will monitor this fire.
Location: N 37° 42.965' x W 119° 29.588' at approximately 7800 feet elevation
Size: 60 acres Cause: Lightning Spread Potential: Low/ Moderate
Fuels: Red fir/ Lodgepole Strategy: Monitor
Location: N 37° 49.336' x W 119° 34.720' at approximately 8154 feet elevation off Tioga road.
Size: 4.8 acres Cause: Lightning Spread Potential: Low
Fuels: Lodgepole/Red fir Strategy: Monitor
Location: 37 45.3 by119 38.5 at approximately 8154 feet elevation off Tioga road.
Size: 10 x 10 Cause: Lightning Spread Potential: Low
Fuels: Low brush Strategy: Monitor (M. Ruggiero)
CONSTRUCTION & TRAFFIC DELAYS
Wawona Road Delays - Update 9-27-17
Around South Entrance: There will be 30-minute delays with single lane traffic control 6AM to 8PM as paving operations continue, so there will be extensive truck traffic around South Entrance as crews continue grading and paving the roadways and parking lots. The 30-minute delays will continue thru September and October as crews continue grading and paving operations.
Between the Rostrum and the Wawona Tunnel: There will be up to 15-minute delays 8PM to 6AM as crews continue with culvert-shoulder-ditch repairs.
El Portal Road Delays - Update 9-27-17
Crews have started working days and nights, completing storm-slide repairs on the El Portal Road between the western park boundary (Yosemite View Lodge) and the Big Oak Flat Intersection. The following delays should be anticipated while traveling the El Portal Road between the western park boundary and the Big Oak Flat Intersection:
8pm to 10pm – delays limited to 15 minutes
10pm to 6am – delays limited to 30 minutes
6am to 8am – delays limited to 15 minutes
8am to 3:30pm -- delays limited to 30 minutes
3:30pm to 5:30pm -- delays limited to 15 minutes (M. Pieper)
Big Oak Flat Road Construction
Road crews will be working from the long tunnel on BOF /HWY 120, working westward, starting September 20th. Expect short delays. Please drive slowly in the work zone, watching for workers, equipment and debris on the road. This project is expected to last up to 4 weeks, with operations being done on Monday- Thursday, 0700-1600 and some Fridays. (B. Brantley)
Yosemite Valley Parking and Road Construction Update
Contractors began repaving the Sentinel Bridge Parking area and adjacent road on Wednesday 9/27. Sentinel Drive will be restricted to one-lane, one-way southbound traffic during work hours. Traffic that would normally travel northbound on Sentinel Drive will detour eastbound on Southside Drive to Stoneman Bridge and loop back on Northside Drive through Ahwahnee Meadow to the roundabout. The shuttle bus will stop on the bridge to let passengers off and pick up passengers. Sentinel Drive will open to two-way traffic during non-work hours. Contractors expect to finish work in this area on 10/6.
Night work will continue under a new schedule on the El Portal Road between the Big Oak Flat intersection and Pohono Bridge. Work will take place from 8pm to 6am, with alternating one-way traffic and a pilot car. Delays will be a maximum of ½ hour.
Work will continue at the four-way intersection at Half Dome Village near Stoneman Bridge. Flaggers will route traffic headed to Half Dome Village in a one-way clockwise loop going eastbound on the Happy Isle Loop Rd then coming back northbound on Curry Village Dr. Contractors hope to pave and finish work in this area the first week in October.
Construction work at the Camp 4 parking area will continue and campers will park across the street at the Yosemite Falls parking area. Northside Drive between the Yosemite Falls crossing and Camp 4 will remain limited to one westbound lane. Eastbound traffic will continue to travel through Yosemite Lodge. The contractors hope to complete this work by Thanksgiving if the weather is good. If not, the parking area and roads will be open for the holidays. (L. Acree)