TWOAT
TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
800 AM EDT THU AUG 13 2009
FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...
THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL
DEPRESSION TWO...LOCATED ABOUT 840 MILES WEST OF THE SOUTHERNMOST
CAPE VERDE ISLANDS.
1. SHOWERS AND THUNDERSTORMS CONTINUE IN ASSOCIATION WITH A BROAD AREA OF LOW PRESSURE AND A STRONG TROPICAL WAVE CENTERED ABOUT 250 MILES SOUTH-SOUTHEAST OF THE CAPE VERDE ISLANDS IN THE FAR EASTERN ATLANTIC OCEAN. CONDITIONS APPEAR TO BE FAVORABLE FOR FURTHER DEVELOPMENT DURING THE NEXT FEW DAYS...AND THERE IS A MEDIUM CHANCE...30 TO 50 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS WHILE THE LOW MOVES TO THE WEST AT 10 TO 15 MPH.
2. A WESTWARD-MOVING TROPICAL WAVE OVER THE EASTERN CARIBBEAN SEA AND
WESTERN ATLANTIC OCEAN IS PRODUCING DISORGANIZED SHOWERS AND
THUNDERSTORMS. UPPER-LEVEL WINDS ARE NOT FAVORABLE FOR SIGNIFICANT
DEVELOPMENT AND THERE IS A LOW CHANCE...LESS THAN 30 PERCENT...OF
THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS.
ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.
Tropical weather discussion
nws tpc/national hurricane center miami fl
805 am edt thu aug 13 2009
tropical weather discussion for north america...central
america...gulf of mexico...caribbean sea...northern sections
of south america...and atlantic ocean to the african coast
from the equator to 32n. The following information is based
on satellite imagery...meteorological analysis...weather
observations...and radar
a strong tropical wave is along 22w s of 16n near the cape verde
islands moving w near 15 kt. Recent visible satellite
imagery...as well as a 0746 utc quikscat pass indicate low-level
cyclonic circulation near the wave giving evidence of a 1010 mb
surface low analyzed along the wave axis near 12n. Numerous
moderate/scattered strong convection is from 8n-11n between
21w-28w...and from 12n-15n between 21w-26w. There is a 30-50
percent chance of this system to develop into a tropical cyclone
in the next 48 hrs
Zczc miatwoat all
ttaa00 knhc ddhhmm
tropical weather outlook
nws tpc/national hurricane center miami fl
200 pm edt thu aug 13 2009
for the north atlantic...caribbean sea and the gulf of mexico...
The national hurricane center is issuing advisories on tropical
depression two...located about 885 miles west of the southernmost
cape verde islands.
1. showers and thunderstorms associated with the broad low pressure
area and tropical wave centered about 250 miles south of the cape
verde islands are slowly becoming better organized. A tropical
depression could form from this system during the next couple of
days as it moves westward at 10 to 15 mph. There is a high
chance...greater than 50 percent...of this system becoming a
tropical cyclone during the next 48 hours.
2. Shower activity extending from the eastern caribbean sea across
hispaniola to the turks and caicos islands are associated with a
westward-moving tropical wave. There are no signs of organization
and upper-level winds are currently unfavorable for significant
development. There is a low chance...less than 30 percent...of
this system becoming a tropical cyclone during the next 48 hours.
Elsewhere...tropical cyclone formation is not expected during the
next 48 hours.
1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 100 NM EITHER SIDE OF A LINE FROM 11.7N 23.3W TO 12.9N 30.1W WITHIN THE NEXT 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME. WINDS IN THE AREA ARE ESTIMATED TO BE 20 TO 25 KNOTS. METSAT IM- AGERY AT 131800Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 11.7N 23.3W. THE SYSTEM IS MOVING WESTWARD AT 8 TO 13 KNOTS.
2. REMARKS:
A. SEA SURFACE TEMPERATURES ARE RANGING FROM 24 TO 27 DEGREES
CELSIUS ACROSS THE TROPICAL ATLANTIC. UPPER LEVEL WINDS OVER THE
SYSTEM ARE EASTERLY 20 TO 25 KTS. HOWEVER WINDS ARE DECREASING
WEST OF THE WAVE. AS THE WAVE CONTINUES TO TRACK TO THE WEST,
ENVIRONMENTAL CONDITIONS BECOME MORE CONDUCIVE FOR DEVELOPMENT.
3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED
BY 141900Z.//
Zczc miatwoat all
ttaa00 knhc ddhhmm
tropical weather outlook
nws tpc/national hurricane center miami fl
200 am edt fri aug 14 2009
for the north atlantic...caribbean sea and the gulf of mexico...
2. Shower and thunderstorm activity has increased over the past few
hours in association with a broad area of low pressure centered
about 175 miles south-southwest of the southern cape verde islands.
Conditions appear favorable for further development of this
system...and a tropical depression could form during the next day
or two as it moves westward at 10 to 15 mph. There is a high chance...greater than 50 percent...of this system becoming a tropical cyclone during the next 48 hours.