Tampa Bay Worst-Case Scenario Some portions are supposably interactive.
I got flamed on fark.com for posting what I already knew, before that link was posted.
In my opinion, after living their for 12 years and listening to the police and fire departments on the scanner(which your sister dispatches the FD's), getting a copy of the Comprehensive Emergency Management Plan (albeit 10 years ago), it looks like they know exactly what they are expecting.
The problem is they have to hope that the public cooperates. A number of hospitals their will do "vertical" evacuations. They have great color coded maps whose evacuation levels correspond to the SLOSH (Sea, Lake and Overland Surge from Hurricanes) expected surge. So, Level "A" (purple), covers the maximum expected (key word: expected) storm surge for a Category 1 hurricane.
If you mother can leave TODAY, it would be better, otherwise, if she's not in an evacuation zone, please, don't have her leave. Assuming a high category 4,
Pinellas County Evacuation Zones and Expected evacuating population there will be 647,190 people trying to leave Pinellas. It takes 4 days (see the interactive one above) to completely evacuate Pinellas. Pinellas has 3 bridges to the east (as I'm sure you know). They close at 40mph. I would hope that the I-275 is completely shutdown at I-75 in Manatee, and used for "southbound" to I-75. Pinellas doesn't need Manatee traffic going through. It has been stated elsewhere in the news that I-75 cannot be contraflowed. I-4 can. However, you will have the combined evacuating populations of Pinellas, Manatee and Hillsborough counties attempting to leave the Tampa Bay area on I-4. Ever seen it during rush hour? Some people on fark.com were trying to tell me about these "staged evacuations". People are like cats. Can you heard cats?
If anyone thinks it might hit Tampa Bay, and you live in Pinellas, leave today or tomorrow. Friday might be too late.