From their website:
Full Wind Restrictions (sustained wind speeds exceeding 50 mph for a continuous period of 10 mins or more; or wind gusts persistently exceed 50 mph over a period of 15 mins) only automobiles, pickup trucks, flatbed trailers, commercial buses and heavy-laden tractor/trailers are permitted to cross the bridge. Tractor-box trailer combinations will not be permitted to cross any bridge if the gross weight is less than 64,000 pounds.
Traffic Holds/Bridge Closure (sustained wind speeds exceeding 55 mph for a continuous period of 10 mins or more; or wind gusts persistently exceed 55 mph over a period of 15 mins) In the event of a sudden increase of sustained wind speeds or wind gusts that could jeopardize life or property, the MDTA may elect to discontinue the movement of all traffic across the bridge.
So I can see them limiting two-way traffic tomorrow, but not fully close. That's only happened a few times during hurricanes/tropical storms.