It’s been a week of very active weather here in Lassen County – lightning, strong winds and torrential downpours have been the norm for the past several evenings. Today, however, will be unique with the National Weather Service office in Reno predicting a double-round of thunderstorms this afternoon and evening.
Forecasters are expecting scattered showers and isolated thunderstorms over Lassen County late this morning, and then a short break where temperatures will get a chance to climb back up before a second round of showers and thunderstorms in the late afternoon and evening.
Some of these thunderstorms may produce heavy rainfall in the afternoon. Temperatures here in the valley should top out around 85.
Thunderstorm coverage should taper off after midnight with just a few isolated nocturnal storms.
Look for a repeat of today’s weather on Thursday with scattered showers and isolated thunderstorms in the late morning, then showers and isolated thunderstorms in the afternoon.
A FLASH FLOOD WATCH July 8th, 2015 10:00a.m. – 10:00p.m.
A Flash Flood Watch will be in effect from 10:00 this morning through 10:00 this evening for the following areas; greater Lake Tahoe area; Lassen – eastern Plumas – eastern Sierra counties; Mono and Surprise Valley California; greater Reno – Carson City – Minden area; Mineral and southern Lyon counties; northern Washoe County and western Nevada basin and range including Pyramid Lake.
Thunderstorms with heavy rainfall are forecast to develop over the Sierra late this morning… and expand north and east into northeast California and western Nevada during the afternoon and evening. The highest risks of flash flooding south of Highway 50 are from roughly 10 am to 4 PM… while the highest risks north of Highway 50 are from about 2 PM to 10 PM.
Given that many areas have received substantial rainfall over the past 3 to 5 days… flash flooding will be quick to occur if storms with heavy rainfall redevelop today. The watch indicates that the ingredients are there to create storms with heavy rainfall and flash flooding… but not a guarantee those storms will develop. If excessive cloud cover forms this morning… that will limit how strong storms may get and lower the flash flood risk.
A Flash Flood Watch means that flooding of small streams… creeks and other drainage areas is possible within the watch area. Recent burn areas are at particularly high risk of flash flooding. People in the watch area should monitor weather.Gov/Reno for updates and be prepared for immediate action should heavy rains and flooding occur or a Flash Flood Warning be issued.
For more information you can always find current conditions at LassenWeatherNetwork.com.
