Hurricane Allen - August 1-14,
A tropical disturbance moved off the African coast on July 30th.
By the 1st, two competing surface
circulations merged, and a tropical depression
formed. By the morning of the 2nd, the system strengthened
into a tropical
storm, and then rapidly into a hurricane by that evening. The
already a category
3 hurricane when it passed just north of Barbados on the 4th.
Continuing its rapid west-northwest clip,
the pressure fell rapidly to
911 hPa south of Puerto Rico, strengthening into a category 5
The center barely missed the Haitian coast on the 6th, turning slightly
more to the west
before striking land.
Moving over the northwest Caribbean, the low
deepened to 899 hPa...then a record for a hurricane in the
Caribbean Sea. The storm weakened as its large circulation
interacted with the Yucatan Peninsula, before
it restrengthened in the central Gulf of Mexico when the
pressure fell to 909 hPa...again a category 5
hurricane on the night of the 8th. A high pressure ridge
across the South weakened, allowing the
slow down its rapid motion as it approached Texas. It then moved
Texas on the 10th, weakening into a tropical storm and then a tropical
depression as it moved across
northern Mexico and the Big Bend of Texas. Below
is the track of this cyclone,
provided by the
National Hurricane Center.
On the graphics below are the storm total rainfall for Allen.
Data was provided by the National Climatic Data Center
in Asheville, North Carolina and by the Comision del Agua, parent
agency of the
Mexican National Weather Service.
Note the maximum across South Texas, mainly along and to the
the cyclone's track.