Thread: Tropical Storm Guillermo - E of Hilo, HI

It DID get stronger!

And stronger!

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hurricane guillermo special advisory number 12
nws tpc/national hurricane center miami fl ep102009
1030 pm pdt fri aug 14 2009

...guillermo rapidly intensifies...now a major hurricane...

At 1030 pm pdt...0530 utc...the center of hurricane guillermo was
located near latitude 18.4 north...longitude 130.8 west or about
1385 miles...2230 km...west of the southern tip of baja california.

Guillermo is moving toward the west-northwest near 16 mph...26 km/hr
...and this motion is expected to continue for the next 48 hours.

Satellite imagery indicates that maximum sustained winds have
increased to near 115 mph...185 km/hr...with higher gusts. Slow
weakening is forecast to begin saturday as guillermo moves over
cooler waters.

Hurricane force winds extend outward up to 30 miles...45 km...from
the center...and tropical storm force winds extend outward up to 120
miles...195 km.

Estimated minimum central pressure is 960 mb...28.35 inches.

...summary of 1030 pm pdt information...
Location...18.4n 130.8w
maximum sustained winds...115 mph
present movement...west-northwest or 285 degrees at 16 mph
minimum central pressure...960 mb

the next advisory will be issued by the national hurricane center at
200 am pdt.

$$
forecaster brennan

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hurricane guillermo special advisory number 12
nws tpc/national hurricane center miami fl ep102009
1030 pm pdt fri aug 14 2009

...guillermo rapidly intensifies...now a major hurricane...

At 1030 pm pdt...0530 utc...the center of hurricane guillermo was
located near latitude 18.4 north...longitude 130.8 west or about
1385 miles...2230 km...west of the southern tip of baja california.

Guillermo is moving toward the west-northwest near 16 mph...26 km/hr
...and this motion is expected to continue for the next 48 hours.

Satellite imagery indicates that maximum sustained winds have
increased to near 115 mph...185 km/hr...with higher gusts. Slow
weakening is forecast to begin saturday as guillermo moves over
cooler waters.

Hurricane force winds extend outward up to 30 miles...45 km...from
the center...and tropical storm force winds extend outward up to 120
miles...195 km.

Estimated minimum central pressure is 960 mb...28.35 inches.

...summary of 1030 pm pdt information...
Location...18.4n 130.8w
maximum sustained winds...115 mph
present movement...west-northwest or 285 degrees at 16 mph
minimum central pressure...960 mb

the next advisory will be issued by the national hurricane center at
200 am pdt.

$$
forecaster brenna

IN all the excitement over Ana's debut,, I didn't post the overnight advisory on guillermo!

to follow, with apologies -

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hurricane guillermo advisory number 13
nws tpc/national hurricane center miami fl ep102009
200 am pdt sat aug 15 2009

...major hurricane guillermo moving west-northwestward...expected to
begin weakening later today...

At 200 am pdt...0900 utc...the center of hurricane guillermo was
located near latitude 18.7 north...longitude 131.9 west or about
1450 miles...2330 km...west of the southern tip of baja california.

Guillermo is moving toward the west-northwest near 16 mph...26
km/hr. This general motion is expected to continue for the next 48
hours...with a slight decrease in forward speed expected on sunday.

Maximum sustained winds remain near 115 mph...185 km/hr...with
higher gusts. Slow weakening is expected to begin later today...
With additional weakening expected on sunday as guillermo moves
over cooler waters.

Hurricane force winds extend outward up to 35 miles...55 km...from
the center...and tropical storm force winds extend outward up to 105
miles...165 km.

Estimated minimum central pressure is 960 mb...28.35 inches.

...summary of 200 am pdt information...
Location...18.7n 131.9w
maximum sustained winds...115 mph
present movement...west-northwest or 285 degrees at 16 mph
minimum central pressure...960 mb

the next advisory will be issued by the national hurricane center at
800 am pdt.

$$
forecaster brennan

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hurricane guillermo advisory number 14
nws tpc/national hurricane center miami fl ep102009
800 am pdt sat aug 15 2009

...powerful guillermo a little stronger...

At 800 am pdt...1500 utc...the center of hurricane guillermo was
located near latitude 18.9 north...longitude 133.2 west or about
1525 miles...2460 km...west of the southern tip of baja california.

Guillermo is moving toward the west-northwest near 15 mph...24
km/hr. This general motion is expected to continue over the next
couple of days.

Maximum sustained winds are near 125 mph...205 km/hr...with higher
gusts. Gradual weakening is expected to commence this
evening...with further weakening expected on sunday and monday as
guillermo moves over cooler waters.

Hurricane force winds extend outward up to 40 miles...65 km...from
the center...and tropical storm force winds extend outward up to 115
miles...185 km.

Estimated minimum central pressure is 954 mb...28.17 inches.

...summary of 800 am pdt information...
Location...18.9n 133.2w
maximum sustained winds...125 mph
present movement...west-northwest or 285 degrees at 15 mph
minimum central pressure...954 mb

the next advisory will be issued by the national hurricane center at
200 pm pdt.

$$
forecaster roberts/beven

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hurricane guillermo advisory number 15
nws tpc/national hurricane center miami fl ep102009
issued by nws central pacific hurricane center honolulu hi
200 pm pdt sat aug 15 2009

...guillermo continues west-northwestward...

At 200 pm pdt...2100 utc...the center of hurricane guillermo was
located near latitude 19.2 north...longitude 134.5 west or about
1605 miles...2585 km...west of the southern tip of baja
california.

Guillermo is moving toward the west-northwest near 14 mph...22
km/hr. This general motion is expected to continue over the next
couple of days.

Maximum sustained winds are near 110 mph...175 km/hr...with
higher gusts. Gradual weakening is expected over the next
couple of days as guillermo moves over cooler waters.

Hurricane force winds extend outward up to 35 miles...55
km...from the center...and tropical storm force winds extend
outward up to 105 miles...165 km.

Estimated minimum central pressure is 958 mb...28.29 inches.

...summary of 200 pm pdt information...
Location...19.2n 134.5w
maximum sustained winds...110 mph
present movement...west-northwest or 290 degrees at 14 mph
minimum central pressure...958 mb

the next advisory will be issued by the national hurricane
center at 800 pm pdt.

$$
forecaster craig

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tropical storm guillermo advisory number 21
nws central pacific hurricane center honolulu hi ep102009
1100 pm hst sun aug 16 2009

...guillermo weakens to a tropical storm...

At 1100 pm hst...0900 utc...the center of tropical storm
guillermo was located near latitude 20.8 north...longitude 142.6
west or about 815 miles east of hilo hawaii.

Guillermo is moving toward the west-northwest near 15 mph.
Guillermo will gradually turn to a northwest track over the next 48
hours.

Maximum sustained winds are near 70 mph with higher gusts. The
storm will continue weakening over the next 48 hours.

Tropical storm force winds extend outward up to 105 miles from the
center.

Estimated minimum central pressure is 990 mb...29.23 inches.

...summary of 1100 pm hst information...
Location...20.8n 142.6w
maximum sustained winds...70 mph
present movement...west-northwest or 285 degrees at 15 mph
minimum central pressure...990 mb

the next advisory will be issued by the central pacific hurricane
center at 500 am hst.

$$
forecaster donaldson