Tropical Storm Helene (2012)

[1] Early on August 7, the National Hurricane Center (NHC) began to monitor the disturbance, noting the possibility of tropical cyclogenesis in the coming days.

[7][1] By 12:00 UTC that day, Hurricane Hunters Reconnaissance aircraft failed to discover a well-defined or persistent circulation, signifying the depression's reabsorption into its parent wave.

[10] The next day, however, convection associated with the wave began to diminish, though started wind shear to become more favorable, land interaction with Central America halted further development.

[11] By August 14, shower and thunderstorm activity returned to normal, however, further organization was halted as the wave crossed through northeastern Nicaragua and eastern Honduras the following day.

[14] By 12:00 UTC the next day, surface observations and radar data depicted a better-defined circulation, with the NHC estimating the regeneration of Tropical Depression Seven occurred around this time.

[1] Early on August 18, satellite observations depicted a deteriorating cloud pattern, despite a well-defined circulation and environmental conditions conducive for development.

[22] The system also brought increased moisture and shower activity to Belize, with rain peaking at around 0.75 inches (19.05 mm) in northern parts of the country.

[23] Upon reformation, the Government of Mexico issued a Tropical Storm Warning from Barra de Naulta, Veracruz to La Cruz, Tamaulipas.

[25] As Helene approached land, the Sistema Nacional de Protección Civil (SINAPROC) declared a red alert for southern Tamaulipas and northern Veracruz.

[26] Personnel from civil protection programs were stationed in the municipalities of Pueblo Viejo, Tampico Alto, and Pánuco to monitor weather conditions and provide aid to residents.

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Tropical depression (≤38 mph, ≤62 km/h)
Tropical storm (39–73 mph, 63–118 km/h)
Category 1 (74–95 mph, 119–153 km/h)
Category 2 (96–110 mph, 154–177 km/h)
Category 3 (111–129 mph, 178–208 km/h)
Category 4 (130–156 mph, 209–251 km/h)
Category 5 (≥157 mph, ≥252 km/h)
Unknown
Storm type
triangle Extratropical cyclone , remnant low, tropical disturbance, or monsoon depression