As delegates and the media gather for the 2012 Republican National Convention in Tampa, Fla., Aug. 27-30, an passing visitor, "Isaac," will have a little say.
Isaac is forecast to reach the eastern Gulf of Mexico on Monday, coinciding with the scheduled start of the Republican National Convention.
The Republican National Convention will convene on Monday morning and immediately be postponed until Tuesday afternoon. The decision was made to protect people attending the event as Isaac impacts parts of Florida early this week.
This track will be a glancing blow to the Tampa area. Heavy rain, thunderstorms, gusty winds, urban flooding and above-normal tides will affect the Florida west coast as well as a significant portion of the peninsula as Isaac approaches and passes by to the west over the Gulf. Such a track will also bring the potential for a few tornadoes.
Tropical Storm Isaac, which moved swiftly along as a minimal tropical storm much of this week, will reach the Florida Straits later this weekend and beginning strengthening into a hurricane.
AccuWeather.com Hurricane Center meteorologists anticipate the storm reaching the Gulf of Mexico by Monday. Upon entering the Gulf, a gradual turn more to the north is anticipated.
People from the Florida Panhandle to coastal Mississippi should be preparing for a possible direct hit from a Category 2 (or stronger) hurricane at this time.
A strengthening hurricane over the eastern Gulf of Mexico will bring building seas and rip currents to a large part of Florida's western coastline. The "backwash flow" or west to southwest winds from a strengthening system moving to the north will produce above-normal tides in Tampa.
At present forward speed (approximately 18 mph), the greatest impact in the Tampa area is likely to occur Monday into Tuesday with conditions potentially deteriorating during Sunday night, depending on the nature of spiral bands preceding the system.
Rainfall totals in excess of 4 inches are expected to inundate Tampa Sunday night into Tuesday. The steadiest rain will pour down on Monday with spottier, yet still soaking showers and thunderstorms to follow Monday night into Tuesday.
A larger version of the latest forecast track map for Isaac (with times in EDT) can be found on the AccuWeather Hurricane Center.
Tropical storm-force wind gusts (likely around 50 mph) will buffet Tampa Monday into Monday night. Winds of this strength could down tree branches and toss about loose lawn items.
Isolated tornadoes will become a concern Monday night into Tuesday as the center of Isaac passes by to the northwest, on a path to strike the northern Gulf Coast as a hurricane around Tuesday evening.
This story was originally published on Tuesday, Aug. 21, 2012, at 9:00 a.m. and has been updated Saturday, Aug. 25.
Tropical Depression Two has formed in the Atlantic and could become the next tropical storm of the season by midweek.
Warm and humid air in place over much of the Northeast at midweek will contribute to the risk of drenching, gusty and locally severe thunderstorms on Wednesday.
After temperatures briefly climb to typical midsummer levels, another cooldown will roll into the Midwest and expand to the East for the last part of July.
With the recent heat fading away, more relief will greet the Northwest by midweek in the form of rain.
After pounding Taiwan, Typhoon Matmo is now bringing heavy rain and gusty winds to eastern China.
A potent storm system moving out of the Northwest United States will bring an elevated risk of tornadoes to parts of Alberta and Saskatchewan on Thursday.
Seattle, WA (1991)
99 degrees, all-time record high for July.
Heat Wave: Location New Record(F): Old Record(F)/Year: Washington, D.C. 101 100/1987 Philadelphia, PA 99T 99/1978 Atlantic City, NJ 100 96/1987 Harrisburg, PA 103 98/1987 Baltimore, MD 103 98/1987 (Custom House)
New Zealand (1995)
Extreme cold - a bay in Littleton Harbor froze for the first time in "living memory".