One Stop Shop (OSS) Update - January 10th, 2011


UPDATE: Monday, January 10th, 2011

The bad weather season is here again, and there’s a good chance you’ll encounter hazardous conditions when traveling in Northern California and Southern Oregon, even when it isn’t snowing or raining. OSS can be used to get an idea of where conditions are less than ideal. We took the following screenshots several days ago, on January 7th, 2011.

When you first open OSS, the default layer is DOT Field Elements. Included are icons representing cameras along the road (CCTV), changeable message signs (CMS), road weather information systems (RWIS), incidents, chain requirements and construction. Here we turned several of those sub-layers off in order to look at just CMS, Incidents (which are shown only for California), and Chain Requirements:

OSS Screenshot (1/7/2011): Showing CMS locations, incidents in California, and chain requirements.

Notice that CMS with active messages are shown with yellow lettered icons, while those without active messages have grey text. Incidents are shown with red triangles, and chain control messages are indicated by tire icons with chains.

We’ll zoom in and take a closer look at I-5 and California State Route 299:

OSS Screenshot (1/7/2011): CMS and Incident Report icons are shown along SR-299 and I-5 in California.

There was an incident near I-5 to the south of Redding. Clicking on the icon revealed further detail, and it appeared that this incident was not on the interstate:

OSS Screenshot (1/7/2011): Clicking on an Incident Report icon brings up more information about the incident.

The incident on SR-299 east of Redding was a collision:

OSS Screenshot (1/7/2011): An Incident Report showing a traffic collision with minor injuries along SR-299.

The CMS near Burney indicated that SR 299 westbound was blocked. We’re not sure, but this may have been due to the collision:

OSS Screenshot (1/7/2011): A CMS notice near Burney, CA letting drivers know that the Westbound lane of SR-299 is blocked due to the accident.

Let’s look at CMS messages on I-5. There were a number active messages from south of Redding to the Oregon border. The CMS near Cottonwood indicated, “Dense Fog, Reduce Speed”:

OSS Screenshot (1/7/2011): A CMS along I-5 warns travelers of dense fog near Cottonwood, CA.

There are several cameras nearby. The following image certainly showed dense fog:

OSS Screenshot (1/7/2011): A CCTV camera along I-5 shows heavy fog and confirms what the nearby CMS stated.

Further up at Riverside Avenue, conditions weren’t much better:

OSS Screenshot (1/7/2011): A CCTV camera along I-5 at the Riverside Ave. exit shows more fog.

This CMS just to the south of Redding also indicated dense fog:

OSS Screenshot (1/7/2011): The CMS along I-5 directly south of Redding also warns of dense fog and recommends drivers reduce their speeds.

And the nearby CCTV camera confirmed the conditions:

OSS Screenshot (1/7/2011): CCTV camera directly south of Redding shows heavy fog in the area.

Here was I-5 at SR-44:

OSS Screenshot (1/7/2011): A CCTV camera shows low visibility at the intersection of SR-44 with I-5.

Fog was a problem north of Redding as well:

OSS Screenshot (1/7/2011):  A CCTV camera north of Redding shows a thick fog along I-5.

A bit further north on I-5, conditions looked a bit better near Fawndale:

OSS Screenshot (1/7/2011): A CCTV camera near Fawndale, CA, shows improved conditions.

The Pit River Bridge also looked clear:

OSS Screenshot (1/7/2011): A CCTV camera overlooking Pit River Bridge shows clear roads and skies.

Here was the view from near Dunsmuir:

OSS Screenshot (1/7/2011):  A CCTV camera near the I-5 exit to Dunsmuir shows good weather and clear roads.

You might think all is clear from the past several images and with inactive CMS, but you’ll notice more fog near the Weed Airport:

OSS Screenshot (1/7/2011):A CCTV camera at Weed Airport shows fog.

And, near Yreka, there were more active CMS messages indicating dense fog:

OSS Screenshot (1/7/2011): A CMS urging drivers to reduce speeds due to dense fog near Yreka, CA.

Nearby cameras confirmed this:

OSS Screenshot (1/7/2011): A nearby CCTV camera displays the fog that the CMS was warning of near Yreka, CA.

And the camera in Yreka definitely showed dense fog:

OSS Screenshot (1/7/2011): A CCTV camera in Yreka shows dense fog and poor visibility.

As did the camera at Anderson Grade, on the way up Siskiyou Pass:

OSS Screenshot (1/7/2011): As we reach Siskiyou Pass a CCTV camera shows more dense fog and poor driving conditions.

Warnings continued up to the pass:

OSS Screenshot (1/7/2011): A CMS warning of dense fog along I-5 in Siskiyou Pass and recommending drivers reduce their speeds.

And while conditions didn’t look too bad here:

OSS Screenshot (1/7/2011): A CCTV camera near Hilt, CA, shows improved conditions.


OSS Screenshot (1/7/2011): A CCTV camera at Siskiyou Summit in Oregon shows clear roads.

And, here:

OSS Screenshot (1/7/2011): A CCTV camera along I-5 at Siskiyou Summit shows good driving conditions.

It looked like there was more fog as you headed toward Ashland, Oregon:

OSS Screenshot (1/7/2011): A CCTV camera near Ashland, OR, shows more fog as drivers descend Siskiyou Pass.

If the fog was really as thick as it appeared here, you’d want to be extra cautious if driving through this area south of Medford:

OSS Screenshot (1/7/2011): A CCTV camera near Medford, OR, shows extremely dense fog and almost no visibility.

And, even though it looked a bit better here, there certainly was more fog to drive through:

OSS Screenshot (1/7/2011): A CCTV camera shows a light fog as drivers enter Medford, OR.

As always, use caution when driving this time of year. And, feel free to give OSS a try before traveling to get a better idea of the conditions you might face. Regardless, keep in mind that conditions can change quickly.