Tropical Storm Isaac powered through an already struggling Haiti Saturday morning, killing at least three people including a 10-year-old girl.
Although the storm is now churning toward Cuba, flooding is rampant in some areas and at least 5,000 Haitians had to be evacuated as a result.
Video of the storm is at the bottom of this page.
Isaac has weakened somewhat but is still packing heavy rain and 60 mph winds, impacting Haiti and the Dominican Republic.
"From last night, we're in misery," said Jean-Gymar Joseph, a resident of Cite Soleil, north of Port-au-Prince. "All our children are sleeping in the mud, in the rain."
Operation Blessing International arrived in Haiti ahead of Isaac. Teams have set up just outside the capital of Port-au-Prince to help storm victims.
With the sun out Friday, Operation Blessing President Bill Horan said many Haitians were "oblivious to the fact that there's a hurricane coming" -- especially those still living in some 400,000 makeshift shelters after the 2010 earthquake.
Operation Blessing President Bill Horan is in Haiti and talked with CBN News more about the situation there and how his group will be reaching out to storm victims. Click play to listen.
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"One of the things that the Operation Blessing team has been heavily engaged in for the last 48 hours is, we've got our guys with megaphones walking around these tent camps warning them that this is a serious storm," he told CBN News Friday.
"And if they have any alternate place to stay ... with a structure more substantial than a tent that they would do that," Horan added.
There's also concern of another cholera outbreak. More than 7,000 people in Haiti have died since 2010 when the disease grew rampant because of contaminated water.
"We're warning them over and over that it's even more critical than ever, don't drink any water unless it's treated," Horan said. "We know there's going to be a big spike in cholera."
Watch video below from Operation Blessing's David Darg as Isaac made landfall overnight in Haiti.
Forecasters have already issued a hurricane warning for the Florida Keys, and severe weather is expected in the state through Monday and Tuesday, just as final preparations are made for the Republican Party's national convention in Tampa.
State officials said they are keeping a close eye on the situation.
"Looks like we'll have some rain and some wind. But really the time to have a discussion about this is after (Isaac) leaves Cuba," Florida Gov. Rick Scott said.
The mayor of Tampa said he will call off the GOP convention if the storm hits.
Republicans are still pushing forward with plans for the gathering where Republican presidential candidate Mitt Romney is expected to be named the party's official nominee.