It weakened back to a tropical storm after its landfall in the Yucatán Peninsula and emerged into the Bay of Campeche, entering a very favorable environment for intensification hours later.
[1] On August 10, the National Hurricane Center (NHC) began monitoring a tropical disturbance near the Cabo Verde Islands.
[3] However, environmental conditions were becoming more conductive for development, and by August 13, the system was designated as Potential Tropical Cyclone Seven while located about 840 miles (1,350 km) east of the Leeward Islands.
[4][5] By 06:00 UTC the next day, the NHC initiated advisories on Tropical Depression Seven approximately 480 miles (770 km) east of the Leeward Islands.
[11] Approximately 11 hours later, Grace made landfall in Jamaica near Annotto Bay, Saint Mary Parish, with winds of 50 mph (80 km/h).
[12] After re-emerging into the Caribbean late on August 17, Grace continued to intensify due to favorable conditions and rapidly organized as it passed south of the Cayman Islands.
[14] The storm reached an initial peak intensity with winds of 80 mph (130 km/h) and a barometric pressure of 986 mbar (29.1 inHg) early on August 19.
[1][27] The mid-level center and remnants of Grace would later redevelop into Tropical Storm Marty in the Eastern Pacific on August 23.
Later that day, tropical storm warnings were issued for the islands of Antigua and Barbuda, Saint Kitts and Nevis, Montserrat, and Anguilla.
[35] Grace's impacts to Haiti were likely more extreme than typical for this kind of storm, due to the magnitude 7.2 earthquake that had occurred in the country just days earlier.
[36] When Grace was still a depression off the coast of Dominican Republic, a tropical storm watch was in effect for the entire island, as issued by the Government.
[38] After leaving the island, a tropical storm warning remained in effect until 09:00 UTC on August 18, when the Jamaican Government discontinued it.
[50][51] Soon after, A hurricane watch was put in effect from Puerto Veracruz to Cabo Rojo on the Gulf coast of Mexico, as Grace was nearing landfall in the Yucatan Peninsula.
[54] A few hours after exiting the Yucatan, the Meteorological Service of Mexico lifted the Tropical Storm Warning east of Progreso.
[59] Grace brought heavy rainfall to Haiti, reaching around 10 in (250 mm); this caused flooding in areas affected by a magnitude-7.2 earthquake in the country that previously killed thousands.
[1] On August 18, Grace made landfall in Jamaica, affecting the country exactly 70 years after a deadly strike by Hurricane Charlie in 1951.
[40] The Rio Cobre flooded the Bog Walk Gorge, but some motorists ignored warnings, forcing the fire department to rescue them.
[69] Strong winds caused losses to plantain and banana farmers in Portland and Saint Mary parishes.
However, with it tracking very close to land, it had a much stronger impact on Grand Cayman which experienced winds gusting up to hurricane intensity.
Several utility poles were toppled and damage to the electrical infrastructure caused Grand Cayman to lose power.
[57] Hurricane Grace caused relatively minor damage across the Yucatán Peninsula, with the most significant effects being power outages with more than 180,000 people losing service.
In Tulum, where the storm made landfall, damage was mostly limited to infrastructure, wire lines, trees, and some flooding; normal operations resumed the morning after Grace's passage.
Grace blew off windows, uprooted trees, toppled power cables and telegraph poles, leaving debris strewn around Tecolutla.
[53] Another died from airborne debris in Poza Rica while an eighth fatality occurred due to a landslide in the state capitol.
[82] Five people died in the state of Puebla: two from landslides, one from flying debris, one from a fallen tree, and one from a heart attack.
[86] Heavy rains from the remnants of Grace triggered a rockslide near Mazatlán, Sinaloa, killing one person.