washington anticipate hurricane irma devastate part unite state u.s. officials prepare massive response storm head federal emergency management agency fema say friday irma set hit florida early saturday night part florida expect lose electricity days long 100,000 people may need shelter fema administrator brock long warn news conference hurricane irma continue threat go devastate unite state either florida southeastern state long say irma category hurricane dangerous measure national hurricane center downgrade category early friday pummel islands caribbean unite state experience three category storm since 1851 irma far large last one hit unite state 1992 hurricane andrew accord long warn people ignore evacuation order need get listen heed warn long say officials thousands personnel ready respond millions meals liters water place nearby long say national weather service say friday last day evacuate wind would start reach unsafe speed florida airlines add extra flight florida thursday announce plan halt service southern florida airports start friday afternoon u.s. health human service secretary tom price call irma remarkably dangerous storm window get right spot ... close rapidly price say main hospital st. thomas u.s. virgin islands close damage irma critically ill patients evacuate puerto rico islands friday u.s. house representatives vote 316-90 approve measure double fund 15.25 billion fema local block grant handle natural disasters senate pass measure thursday 80-17. fema disaster assistance fund could run money friday without action president donald trump expect sign measure friday measure also extend life national flood insurance program dec. 5. set expire sept. 30. hurricane irma 'devastate part u.s. emergency service head