Climbing in Bishop after the rain

We were planning on heading to Bishop to do some bouldering over Thanksgiving weekend. I've been stalking the weather reports and it is calling for rain on Thursday.

I know with sandstone it is best to wait a few days, but wasn't sure how long to wait for granite.

I know it depends on how much rain and the weather conditions that follow... I'm just looking for some pointers/rough time frames/advice.

Thanks!

i may be wrong but isnt bishop bouldering mostly granite? You should be fine.

Granite does not absorb water and therefore is not weakened by it. The Happies/Sads are volcanic tuff, which I don't think absorbs much water either. So as soon as the skies clear you should be good to go.

They are granite, I mostly climb sandstone and have gotten used to the wait for them to dry out, but wasn't sure about tougher rocks.

Thanks so much for your reply! :o)

Tuff does most definitely like to drink and is definitely weaker after moisture and all rock is weaker when moist. Tuff is just another type of granite.

AndyMac wrote:Tuff does most definitely like to drink and is definitely weaker after moisture and all rock is weaker when moist. Tuff is just another type of granite.

You don't have to wait. Get out there and pull

You will find that many of the pockets in the volcanic rock at Happies/Sads will be full of cold water though ;)

In a light rain you could maybe climb at the Peabodys, Cave Boulder, Bowling Pin.

was at the Happys last week. it raind all night on friday, but stopped around 4am. we let the rock dry out, and were climbing by about 11am on saturday

Looks like it will be dry

forecast.weather.gov/MapCli…