Of the major rivers in Los Angeles County, the Santa Clara River originates in Los Angeles County and then flows into Ventura County, and the Los Angeles and San Figure 6.2 includes a view of the Los Angeles basin and metropolitan area Los Angeles International Airport is in the direction of 125° from the north.

Figures 6.1– 6.4 show the main geographic features of the region approximately to the east, southeast, southwest, and west, respectively, as seen from the site of the Sulphur Mountain radar.

The City of Los Angeles extends mainly southeast of the Sulphur Mountain NEXRAD (KVTX) location. Several smaller creeks that originate in the surrounding mountains feed these two rivers, which have a total drainage area of approximately 4500 km 2. Two rivers discharge to the Pacific Ocean from Ventura County: the Ventura River’s outlet is located just north of the city, and the Santa Clara drains into the ocean just south of the city. The relatively flat Ventura County coast is located between the coastal mountain chains of the Santa Ynez Mountains to the north (i.e., near Santa Barbara) and the Santa Monica Mountains to the south (i.e., near Malibu). Mountain chains run not only roughly parallel to the coastline but also nearly east-west, making them almost perpendicular to the moist, southerly flow of approaching winter storms. The elevation ranges from sea level to 10,500 feet over a mere 50 miles, and the land surface varies from ocean to islands, mountains to valleys, desert to agricultural lands to major metropolitan areas. The geography and orography of the region for which the National Weather Service (NWS) Los Angeles-Oxnard (LOX) office is responsible are among the more varied in the United States. this is historic, and the volume is really overwhelming infrastructure all over the region,' Lieber told CBS2.Flash Flood Warning Process in Los Angeles and Ventura Countiesįorecasting flash floods in Los Angeles and Ventura Counties is a complex process that begins with an understanding of the geographical makeup of the counties and knowledge of the preferential regions of heavy rainfall (i.e., precipitation climatology) for the area of responsibility. 'We deployed a ton of pumping infrastructure, we unclogged drains, all the preparations, but. We will be deploying maximum pump capacity and surging workers into the system when it's safe so that as this epic storm abates service can be restored as soon as possible.'

New Yorkers should not attempt to travel until further notice. Our concern is for those who were in trains stuck after up to six inches of rain fell within hours, and top priority is working with first responders to safely evacuate everyone from the system. Torrential rains caused massive amounts of water to enter subways and flood roads, creating severe disruptions to service. 'This has been a historic and challenging night for the region, our customers and transit workers. Janno Lieber, MTA acting chairman and CEO, released the following statement early Thursday morning: We strongly recommend you avoid traveling at this time, if you can. Train service is extremely limited, if not even suspended, because of heavy rainfall and flooding across the region.

Flash flood watch