I’m in ground too with plants in early-mid flower getting 1-2” rain over the next couple days. I’ll be shaking off buds and using leaf blower after rains stop. I’m not worried about heavy rains watering my plants because in past years the extra water at this time of year tends to swell bud growth, especially if it’s gonna be sunny for several days after rains. Just make sure plants are supported with stakes, strings, cables, etc. to prevent branch breakage. Remember that plants need food and sun for good buds but above all they do need water (plants are 80-90% water after all). So after rains:
—shake or blow buds dry
—spread branches and pull plate leaves for max airflow
—look for pests after rains and spray BT if caterpillars are a problem
—get beach umbrella for rain protection for future rains
Good luck!