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Matthew Marching West through Caribbean

September 29, 2016   •   By UF Forecaster Deborah Alberto   •    Updated: 4 months ago

Multiple planes Thursday Night to yield better modeling Forecast to strengthen over next three days Turns north Saturday, impacts to U.S. uncertain Storm Center Live Stream Note: When we are not broadcasting live, you can watch a real-time feed of satellite, radar, and sometimes Hurricane Hunter data.  The data from theRead more

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FROM THE NATIONAL HURRICANE CENTER

ACTIVE STORMS ATLANTIC OUTLOOK HURRICANE HUNTERS FORECAST DISCUSSION


Sorry, the http://www.nhc.noaa.gov/nhc_at.xml feed is not available at this time.

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NHC Atlantic Outlook

Published: Friday September 30th, 2016 by nhcwebmaster@noaa.gov (NHC Webmaster)

Atlantic 2-Day Graphical Outlook Image
Atlantic 5-Day Graphical Outlook Image


ZCZC MIATWOAT ALL
TTAA00 KNHC DDHHMM

TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 AM EDT FRI SEP 30 2016

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

The National Hurricane Center is issuing advisories on Hurricane
Matthew, located over the east-central Caribbean Sea.

Tropical cyclone formation is not expected during the next 5 days.

$$
Forecaster Berg
NNNN





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NHC Atlantic Tropical Weather Discussion

Published: Friday September 30th, 2016 by nhcwebmaster@noaa.gov (nhcwebmaster)

000
AXNT20 KNHC 301008
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
608 AM EDT FRI SEP 30 2016

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, weather observations, radar and meteorological analysis.

Based on 0600 UTC surface analysis and satellite imagery through
1000 UTC.

...SPECIAL FEATURES...

Hurricane Matthew at 30/0900 UTC is centered near 14.0N 69.9W or
about 113 NM north-northwest of Curacao, moving west at 12 KT.
Maximum sustained winds are 70 KT with gusts to 85 KT. Estimated
minimum central pressure has fallen to 979 mb. Numerous strong
convection is observed from 12N to 16N between 68W and 72W. Scattered
moderate convection is elsewhere from 11N to 17N between 64W and
72W. Matthew will continue to strengthen during the next few days
as it moves WNW over the central Caribbean. Please refer to the
NHC forecast/advisory under AWIPS/WMO headers WTNT24 KNHC/TCMAT4,
or visit the NHC website at http://hurricanes.gov for additional
details.

...TROPICAL WAVES...

A tropical wave is in the E Atlantic extending from 8N to 18N
with axis near 28W, moving west at 10 kt over the past 24 hours.
The wave is in a region of favorable deep layer wind shear and in
a region of middle to upper level diffluence. However, both the
TPW imagery and Meteosat enhanced imagery show Saharan dry air
mainly W of the wave axis, which is limiting the convection to
scattered showers from 14N to 16N between 25W and 30W.

A tropical wave is in the central Atlantic extending from 7N to
17N with axis near 48W, moving west at 10-15 kt over the past 24
hours. The wave is in a region of unfavorable deep layer wind
shear and Saharan dry air is mainly W of its axis, which is
limiting convection to scattered showers from 10N-20N between 39W
and 47W.

...ITCZ/MONSOON TROUGH...

The Monsoon Trough extends over Africa reaching the east Atlantic
near 12N16W through 12N27W to 08N38W. The ITCZ begins near 08N38W
and continues to 08N58W. Aside from the convection associated
with the tropical waves, scattered showers are noted off the
coast of W Africa from 07N to 14N E of 21W. This convection may
be associated with the next tropical wave to move off Africa.

...DISCUSSION...

GULF OF MEXICO...

A broad deep layered cyclonic circulation centered over Kentucky
and associated trough with mean axis along 85W dominates the
eastern half of the Gulf of Mexico and provides support for a
cold front extending from 28N82W through 25N90W to 24N96W. Strong
upper level subsidence is occurring in the wake of the upper
trough in the north-central and northeast basin providing fair
weather. Unfavorable deep layer wind shear support similar weather
conditions in the NW Gulf. A large anticyclone over Mexico
dominates the flow over the western Gulf with moderate to strong
northwesterly flow aloft spreading mid level moisture across the
Bay of Campeche. Diffluent flow aloft between the upper
anticyclone and the trough provide support for scattered showers
and isolated thunderstorms ahead of the cold front and weaker
shower activity within 60 NM either side of a surface trough
extending from 24N96W to 20N96W. The cold front will continue to
move south across the eastern Gulf during today and then will
stall Saturday before dissipating Sunday. Convection will prevail
ahead of this boundary affecting the southern Gulf waters.

CARIBBEAN SEA...

The main feature of concern in the Caribbean is Hurricane
Matthew located south of Dominican Republic. Matthew remains
embedded within an area of divergent anticyclonic flow aloft as
it tracks westward. Please refer to the special features section
above for details. An upper-level trough extends across the
Florida Peninsula reaching the west Caribbean waters west of 77W.
The upper trough support scattered showers and tstms within 120 nm
off the SW coast of Cuba while diffluent flow aloft support
similar convection within 60 nm off the coast of Honduras.
Isolated showers are observed in the SW basin due to the proximity
of the EPAC Monsoon Trough. Scatterometer data depicts moderate to
fresh northeasterly winds across the basin west of 78W. Expect for
Matthew to intensify as it moves WNW over the central basin
through Sunday.

...HISPANIOLA...

High cloudiness continues to spread across the Dominican Republic
in advance of Hurricane Matthew. The forecast track of the
hurricane should keep the bulk of the heavy precipitation to the
south of Hispaniola. However an increase in the overall moisture
could lead to localized heavy rain in orographically favored
areas. As Matthew turns northward late SUN or MON, the potential
exists for additional heavy rains over Haiti. For additional
information on Matthew, please refer to the special features
section above.

ATLANTIC OCEAN...

Two tropical waves are moving across the basin. Please refer to
the section above for details. A broad mid-level trough extends
across the southeast CONUS and covers the west Atlantic waters W
of 75W, supporting scattered showers and thunderstorms between
70W-80W. The remainder of the basin is dominated by a surface
ridge anchored by a 1031 mb high in the north central Atlantic
near 41N35W.

For additional information please visit
http://www.hurricanes.gov/marine

$$
RAMOS



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Weather Reconnaissance Flights Plan of the Day

Published: Thursday September 29th, 2016 by nhcwebmaster@noaa.gov (nhcwebmaster)
 
 000
 NOUS42 KNHC 291413
 REPRPD
 WEATHER RECONNAISSANCE FLIGHTS
 CARCAH, NATIONAL HURRICANE CENTER, MIAMI, FL.
 1015 AM EDT THU 29 SEPTEMBER 2016
 SUBJECT: TROPICAL CYCLONE PLAN OF THE DAY (TCPOD)
          VALID 30/1100Z TO 01/1100Z OCTOBER 2016
          TCPOD NUMBER.....16-126
 
 I.  ATLANTIC REQUIREMENTS
     1. TROPICAL STORM MATTHEW
        FLIGHT 0NE - NOAA 49             FLIGHT TWO - TEAL 72
        A. 01/0000Z     ,                A. 30/2330Z
        B. NOAA9 0814A MATTHEW           B. AFXXX 0914A MATTHEW
        C. 30/1730Z                      C. 30/2145Z
        D. NA                            D. 13.9N 71.8W
        E. NA                            E. 30/2300Z TO 01/0200Z
        F. 41,000 TO 45,000 FT           F. SFC TO 15,000 FT
 
        FLIGHT THREE - TEAL 73
        A. 01/1130Z, 1730Z
        B. AFXXX 1014A MATTHEW
        C. 01/0930Z
        D. 13.9N 72.8W
        E. 01/1100Z TO 01/1730Z
        F. SFC TO 15,000 FT
 
     2. OUTLOOK FOR SUCCEEDING DAY: CONTINUE 6-HRLY FIXES.
     3. REMARKS: NOAA'S P-3 WILL FLY AN 8 HOUR RESEARCH MISSION
        DEPARTING AT 30/1400Z AND OPERATING AT 8,000 FT.
 
 II. PACIFIC REQUIREMENTS
     1. NEGATIVE RECONNAISSANCE REQUIREMENTS.
     2. SUCCEEDING DAY OUTLOOK.....NEGATIVE.
 
 $$
 JWP