In a typical summertime thunderstorm, warm, moist air rises rapidly into the atmosphere, where it hardens into ice crystals, which then collide and cause a buildup of electrical charges. At a certain threshold, the electrical charges are released onto the earth’s surface in the form of lightning strikes.

OKLAHOMA CITY, OKLAHOMA - MAY 18: Cason Wallace #22 celebrates with Isaiah Hartenstein #55 of the Oklahoma City Thunder during the third quarter of a game against the Denver Nuggets in Game Seven of the Western Conference Second Round NBA Playoffs at ...

The OKC Thunder will face the Golden State Warriors on the road at 9 p.m. CST Friday. OKC (29-5) cruised to a 124-95 home win over the Portland Trail Blazers on Wednesday. Isaiah Hartenstein is out Friday due to a right soleus strain. Golden State (18-16 ...