* Astronomy

Tropical Storm Emily is shown here in the Atlantic Ocean several hundred kilometres north of the Brazilian coast on July 12, 2005. The image was captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellite at 12:55 UTC.
The fledgling storm didn't have the characteristic look of a tropical storm at the time; it appeared to be just a collection of severe thunderstorms.


Expand
At the time of this observation, however, winds were around 40 knots (75 km/h), sufficient to classify it as a tropical storm. Emily was heading westward at around 15 knots (roughly 28 km/h).
On July 13, Emily was gathering power as it moves into the Caribbean and to organising into a full-fledged hurricane with predicted top wind speeds around 100 knots (185 km/hr) before making landfall on Mexico’s Yucatan Peninsula some time around July 16.


Expand
The Tropical Rainfall Measuring Mission (TRMM) satellite captured this image of Tropical Storm Emily at 16:44 UTC on 13 July 2005 as it was approaching the Windward Islands. The image shows a top-down-view of the rain intensity obtained from TRMM's sensors.
Rain rates in the centre of the swath are from the TRMM Precipitation Radar (PR), the only radar that can measure precipitation from space.
Rain rates in the outer swath are from the TRMM Microwave Imager (TMI). The rain rates are overlaid on infrared (IR) data from the TRMM Visible Infrared Scanner (VIRS).
At the time of this image, Emily was a tropical storm with sustained winds estimated at 60 mph and moving westward at near 20 mph.


3 day prediction