What does this sentence mean?

[Fazzu]

From the BBC website:

President George W Bush has defended the government's response to Hurricane Katrina and pledged more help on a trip marking the storm's first anniversary.

Isn't Hurricane and Katrina the same?

[Irushka]

Hurricane named Katrina.
Actualy, It's femal name.

I wonder, why does natural calamity ussualy get humans names, more often femal?

[Philly]

Hi Fazzu

As Irushka stated: hurricane is the general word for a type of storm, Katrina is the name of the specific storm. Katrina is also a female name.
.
.
Hi Irushka

You'll be pleased to hear that hurricanes now have male names as well. The most recent hurricane in the Caribbean is Hurricane Ernesto.
.

[Irushka]

Thank you, Philly.
It makes me happy

[Ouisch]

The World Meteorological Organization first started naming hurricanes after women (saying both storms and women were unpredictable) in 1953. After enough protests to that logic, they began alternating between male and female names for hurricanes in 1978. Hurricane Bob (1979) was the first storm to bear a male name. In 2003 they added Hispanic and French names to the mix, to reflect the ethnicities of the folks who live up and down the Atlantic coast. If a storm has been particularly devestating (think Camille, Hugo and Andrew), the name is permanently retired.

[englishstudent]

As I understand it, they are called "hurricanes" in
the Atlantic and North American region. They
are called "typhoons" in other places. [The word
"typhoon", as you may know, comes from the
Chinese "tai feng" (Japanese "tai fuu"), or
from Greek "Typhon".]

Other words used for "storm" - tornado, twister, whirlwind,
cyclone.

You can find the difference between them on some weather
related website. I remember reading a while ago about
how the name differs according the intensity, but I am
not able to remember it now.

[Fazzu]

Hurricane named Katrina.
Actualy, It's femal name.

I didn't know Hurricanes' too got names!

Thanks guys for the interesting informations.I totally enjoyed reading the information given by Ouisch and Englishstudent!