Not a chance. 12"- 20" maybe. 30-40" is a whole different animal. To produce in excess of 20", the storm has to stall completely and sit there dumping rain for 3-5 full days like Harvey did in 2017. Once this one clears the cost, it is projected to move on north fairly quickly. It'll be a rain event for sure, but 40" in the 24 hrs it's impacting the peninsula will be a record if it occurs. I disagree with the global warming BS statement in the excerpt below but to provide some perspective, these are the highest storm related rainfall events in the past 70 yrs:

" the three highest-volume rainfall events in the U.S. in the last 70 years have occurred since 2016: Hurricane Harvey in Texas/Louisiana in 2017, Hurricane Florence in North Carolina in 2018, and a March 2016 storm in Louisiana. It is highly unusual to get three such extreme events in one three-year period, and the odds of this occuring were increased by global warming, which boosts the amount of water vapor in the air and increases the frequency and intensity of heavy precipitation events.

Dr. Kunkel’s ratings were based on four-day rainfall totals over an area of 14,000 square miles (an area 40% larger than the state of Maryland). Harvey delivered an average of 25.6 inches of rain over an area of 14,000 square miles, while Florence was a somewhat distant second place, with an average of 17.5 inches of rain over a like-sized area."

Current rainfall projection for Tampa between today and this Saturday is 12-14" and Tampa currently has the highest rainfall projection for anywhere in the US related to IAN as of NOAA's updated projections 2 hrs ago.