Friday, April 20, 2018



Today’s Forecast for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains:
Good Morning.
All WARNINGS have expired.
Yesterday went pretty much as planned. We had light snow showers over much of the area or light rain showers in some areas. Only a couple of W/Stations had measurable moisture. At my W/S, I measured .01″, as did Rim Forest, and Sky Forest. Skyland W/S reported .02. The San Diego area received about .04″. A dusting of snow covered the local mountains in the Santa Barbara area.
Today, clear skies with warmer temperatures as High pressure builds over the West. Currently, a 1028mb area of High pressure is strengthening over the Eastern Pacific Ocean. Replacing the area of Low pressure that rolled through SoCal yesterday. As the High strengthens, we will see warmer temperatures across the SoCal region with local mountain temperatures from the upper 60s to the mid 70s by Sunday. The Valley will see temperatures in the upper 70s to low 80s today, and into the upper 80s by Monday. Winds will be variable through the period. I think we have turned a corner on the Weather. As discussed in a previous forecast, typically this time of year we look for Cut Off Lows developing off of the West Coast of SoCal. With the warmer temperatures and a possible Cut Off Low in the Forecast for the middle of next week, I think we are finally emerging to a more typical pattern for Spring. That being said, the mid week weather ahead will be uncertain as a Cut Off Low approaches the West Coast of SoCal. More on that as we head into next week. Predicting a Cut Off Low in the Spring, is like being a batter, waiting for a pitch. You know it’s coming, but how fast or where it’s going is the mystery. RC
Thank you for joining me @ , Rim Weather, San Bernardino Mountains, and or lake Gregory weather group.

Temperatures around the area for Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead: 60-65*/43-48*
Running Springs, GVL, and Big Bear: 55-60*/34-40*
San Bernardino: 75-80*/50-55*

On another note, there is a new source for local news that can be found at,

At the bottom of this page, I have added two pictures, and two videos, for a suggested rain gauge, and weather station, as well as videos on how to set them up properly.


If you click on the green Station name, it will take you to that WX/Station

LAKE GREGORY——–43/32….Elev..4617’…0.01″ RAIN*

VLY OF THE MOON–45/35….Elev..4974’…0.00″RAIN*

SKYLAND DR.————40/38….Elev 5036’….0.02″ RAIN*

CDR/PINES/PRK———37/34….Elev  5784’….0.00″ RAIN*

TWIN PEAKS————–44/37….Elev 5514’…..0.00″RAIN*

RIM FOREST————–36/34….Elev 5768’…..0.01″ RAIN*

ROCK CAMP,FS ———46/33…Elev 4920’……0.00″RAIN*

CEDAR RIDGE————41/34…Elev 5580’……0.00″ RAIN

BLUE JAY——————-42/29…Elev 5312′ …..0.00″ RAIN

SKYFOREST—————37/33…Elev 5863’……0.01″ RAIN*

RUNNING SPRINGS—–35/32..Elev 6283’……0.00″ RAIN*

GREEN VALLEY LAKE–38/29…Elev  7018’…..0.00″ RAIN*

BIG BEAR/-SHAY/MDW–41/27..Elev 6781’…….0.00″ RAIN*

WATERMAN CANYON—50/39..Elev  3208′ ….0.00 RAIN*

SAN BERNARDINO——-60/43..Elev 1278’……0.00″ RAIN*




This years rainfall total is at  18.44″ so far at my location.

The Rainfall year starts on July 01, and ends on June 30th.

Rainfall amounts from the latest storm were 0.01″.

Snow measured at my location was 0.00″.

Season snow total at my location : 4.25″

Last years season (2016-2017) rainfall total was, 45.90″ including melted snow moisture at my location.

The Total for the 2015-2016 Rainfall Year, was 32.38″ at my location on the South side of Lake Gregory.
Normal for the Crestline area is around ~40.00″.

Listed below are several local Weather Stations, current conditions.

Click on any of the Weather icons below to see that Stations forecast or information.

Note: Lakeside Resort is in Blue Jay.

Weather Underground PWS KCACREST13

Weather Underground PWS KCASANBE65

Weather Underground PWS KCASANBE73

Weather Underground PWS KCALAKEA16

Weather Underground PWS KCARUNNI8

Weather Underground PWS KCAGREEN21

Weather Underground PWS KCABIGBE23

Weather Underground PWS KCASANBE21

Ambient weather has several rain  gauges available. Below pictured are my pick for a rain gauge and the best Weather Station for the money.

They also have many other Weather Stations to pick from. I am partial to Davis instruments as I believe they are the most accurate and durable for the money.

On their website you will be able to find all of your weather related instruments and software needed to put your personal weather data online.

Click on the logo to access their website.

A Big Thank you, to all of you who have contributed to the costs of maintaining this website.  I really appreciate your support.

Ron Chalfant

If you are interested in learning more about the weather and how it works, at 6pm local time, Tim Vasquez has a 30-40 minute broadcast on YouTube videos that you can learn some of the details in weather forecasting. LINK:  Tim Vasquez. He also has written several books that are worth reading if you are interested in Weather, that can be found on Amazon.

Thank You, for visiting this Website. IF YOU LIKE THIS WEBSITE, PLEASE SHARE IT WITH YOUR FRIENDS, AND OR ADD A LINK TO YOUR WEBSITE, ( ). Donations can be made to help with the on going costs of maintaining this website and its equipment by clicking on the DONATE BUTTON at the top of this page.

Be sure to check the WEBCAM PAGE for visible weather conditions around our local area.
LAKE GREGORY  is open every day for Fishing and Boat Rentals.(click on the link)

For local dispatch information WWW.SOCALMOUNTAINS.COM

For California Fire info

*RC. The information on this site is determined from many sources and is the most probable solution for our local area.
Weather is a dynamic force and can change in a brief period of time.

Click the refresh button below to reload this page.