take a look at thisis hail n occasionon.hat was t takenen byy ken and melissa ortiz sent us pictures as well. this is hail that poununded par of sanan frfrancicisco.o. also an anonymomous viviewer ses aa rainbobow. ifif you h have video we'd like to share them with us. upload them or e-mail them. >> oakland school superintendent warns there may be significant teacher layoffs this fall. the district posted a letter on its website yesterday. it didn't say specifically how many teachers may be cut, but some have estimated it could run into the hundreds. the district also plans to notify principals and managers that they might be reassigned to a new position in the fall. school officials say they've been able to avoid high layoffs in recent years because of high teacher attrition rates and funds. warning employees of possible layoffs by march 15th. >> united airlines isup inspect of jets of that been grounded for an overdue computer maintenance check. united says it's not expected to cause cancellations today. they cancelled 15