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000
AGXX40 KNHC 091920
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
320 PM EDT Sat May 9 2020

Marine Weather Discussion for the Gulf of Mexico, Caribbean Sea,
and Tropical North Atlantic from 07N to 19N between 55W and 64W
and the Southwest North Atlantic including the Bahamas

...GULF OF MEXICO...

A cold front from extends from the Florida Big Bend to 28N90W to
25N95W then transitions to a stationary front to 22N98W. A
surface trough is ahead of the front in the Bay of Campeche. The
front will move to the central Gulf waters today and gradually
stall through Sun. An area of low pressure is expected to
develop over the SW Gulf today, and track NE toward South
Florida on Sun. The stalled front will then transition back to a
cold front and exit the southeastern Gulf on Mon. Numerous
showers and scattered thunderstorms will impact most of the
southern and eastern Gulf waters this weekend.

...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN
55W AND 64W...

High pressure N of the area will support fresh to strong trade
winds across the central Caribbean, and gentle to moderate winds
over most of the remainder of the basin through Sun night. The
aerial extent of the strong trades will diminish and reduce to
the south-central Caribbean for the remainder period.

...SW N ATLANTIC INCLUDING THE BAHAMAS...

A cold front extending from 31N77W to 29N81W will move across
the waters N of the Bahamas through Sun. Weak low pressure in
the Gulf of Mexico will track NE across south Florida into the
Bahamas Sun through Mon night enhancing winds and generating
numerous showers and thunderstorms. In the wake of the low, a
cold front will move across the northern and central waters
through Mon night, then stall from near 29N65W to central Cuba
late Tue.

$$

.WARNINGS...Any changes impacting coastal NWS offices will be
coordinated through AWIPS II Collaboration Chat, or by
telephone:

.GULF OF MEXICO...
None.

.CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN
55W AND 64W...
None.

.SW N ATLANTIC INCLUDING THE BAHAMAS...
None.

$$

*For detailed zone descriptions, please visit:
http://www.nhc.noaa.gov/abouttafbprod.shtml#OWF

Note: gridded marine forecasts are available in the National
Digital Forecast Database (NDFD) at:
http://www.nhc.noaa.gov/marine/grids.php

For additional information, please visit:
http://www.nhc.noaa.gov/marine

$$

.Forecaster Ramos. National Hurricane Center.

 
 000
 NOUS42 KNHC 311430
 REPRPD
 WEATHER RECONNAISSANCE FLIGHTS
 CARCAH, NATIONAL HURRICANE CENTER, MIAMI, FL.
 1030 AM EDT TUE 31 MARCH 2020
 SUBJECT: WINTER STORM PLAN OF THE DAY (WSPOD)
          VALID 01/1100Z TO 02/1100Z APRIL 2020
          WSPOD NUMBER.....19-122
 
 I.  ATLANTIC REQUIREMENTS
     1. NEGATIVE RECONNAISSANCE REQUIREMENTS.
     2. OUTLOOK FOR SUCCEEDING DAY.....NEGATIVE.
 
 NOTE:  THIS IS THE LAST WSPOD OF THE SEASON UNLESS CONDITIONS
        DICTATE OTHERWISE.
 
 $$
 WJM
 
 NNNN
 

000
AXPZ20 KNHC 091543
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1503 UTC Sat May 9 2020

Tropical Weather Discussion for the eastern Pacific Ocean from
the Equator to 32N, east of 140W. The following information is
based on satellite imagery, weather observations, radar, and
meteorological analysis.

Based on 1200 UTC surface analysis and satellite imagery through
1500 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

A surface trough extends from Panama near 08N78W to 07N122W. The
ITCZ extends from there to 06N140W. Scattered moderate isolated
strong convection is noted north of 05N east of 90W, from 03N to
11N between 94W and 114W, and from 05N to 07W west of 138W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A weak ridge of high pressure extends from 30N128W through the
Revillagigedo Islands to 14N96W. As a result, winds this morning
off of Mexico and in the Gulf of California were only moderate
breeze or weaker. High pressure building over the Gulf of Mexico
will promote strong N gap winds across the Tehuantepec region
late tonight and continue through Mon night. Peak seas should
reach 10-12 ft due to N wind waves and SW swell. Elsewhere
tranquil conditions are expected across the area through at least
Wed night.

Long period SW swell will impact the waters through Monday. An
altimeter pass showed peak seas of 8 to 9 ft south of Mexico
late last night.

Haze and areas of smoke from agricultural fires in Mexico may
reduce visibilities near the coast from the Tehuantepec region to
near Cabo Corrientes.

OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND
WITHIN 750 NM OF ECUADOR...

A flat pressure gradient over the waters is forcing winds of
only fresh breeze or weaker. Winds will remain tranquil during
the next several days.

Large, long period SW swell will continue to impact the offshore
waters of Central America, Ecuador and Colombia through the
weekend before gradually fading. Peak seas observed by an
altimeter pass last night were around 10 ft between the Galapagos
and Ecuador.

Haze and areas of smoke may reduce visibilities near the coasts
of Costa Rica, El Salvador and Guatemala during the next few
days.

REMAINDER OF THE AREA...

A weak ridge of high pressure extends from 30N128W through the
Revillagigedo Islands to 14N96W. The relatively flat pressure
gradient from the ridge to the ITCZ is causing NE trades of
generally moderate breeze or weaker this morning. Peak seas are 8
to 10 ft east of 120W and south of 15N, primarily due to long-
period SW swell.

A weak cold front will reach our NW corner of 30N140W Sun morning
and progress to 30N132W to 24N140W Mon morning, before
dissipating by Tue morning. SW winds ahead and NW winds behind
the front should remain fresh breeze or weaker. A NW swell of 8
to 10 ft will impact the waters north of 25N west of 130W Sun
night through Tue morning. Elsewhere winds should remain tranquil
through at least Wed night.

Large, long period SW swell will continue to impact the high seas
waters south of 15N and east of 125W through the weekend before
gradually fading. Peak seas observed by an altimeter pass last
night were around 10 ft well west of the Galapagos.

$$
Landsea

000
AXNT20 KNHC 091736
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1230 PM EDT Sat May 9 2020

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 1200 UTC surface analysis and satellite imagery through
1700 UTC.

...MONSOON TROUGH/ITCZ...

The monsoon trough extends from 10N14W to 03N24W. The ITCZ
extends from 03N24W to 00N38W to 00N50W. Numerous moderate
scattered strong convection is noted from 02N-09N between 09W-
22W. Scattered moderate convection is seen within 300 nm of the
ITCZ between 32W-50W.

GULF OF MEXICO...

A cold front extends from Cedar Key Florida to 28N93W to 26N96W,
then transitions to a stationary front from 26N96W to the coast
of Mexico near 22N98W and inland to beyond 25N101W. As of 1500
UTC, a weak 1014 low is analyzed along the front near 25N96W.
Numerous strong convection is over the southwest Gulf of Mexico
from 19N-24N between 93.5W-96.5W. Scattered to numerous moderate
and isolated strong convection is elsewhere inside the points
bounded by 29N96W to 29N90W to 25N92W to 23N86W to 19N97W to
29N96W. A recent ASCAT pass shows strong NE winds over the
northern Gulf, north of the cold front and northwest of the
surface low near the Texas coast.

An area of strong winds are also seen off the NW coast of the
Yucatan Peninsula. Gentle to moderate winds are over the SE
Gulf, as an E-W surface ridge is seen extending along 25N from
73W-88W.

The cold front will move S to the central Gulf waters later
today and gradually stall through Sun. The weak low pressure
over the SW Gulf will track east-northeastward toward South
Florida on Sun. The stalled front will then transition back to a
cold front and exit the southeastern Gulf on Mon. Numerous
showers and thunderstorms will impact most of the southern and
eastern Gulf waters through the rest of this weekend.

CARIBBEAN SEA...

Mid- to upper-level ridging prevails over the eastern and
central Caribbean Sea. TPW imagery shows abundant moisture over
the western Caribbean. A weak surface trough over Cuba is
inducing scattered showers and isolated tstorms north of 20N
between 77W-88W.

Farther south, troughing extending from the east Pacific over
Central America is inducing scattered showers and tstorms from
the eastern coast of Honduras to Panama, and extending out
offshore to 60 nm from the Caribbean coast of Central America. A
recent ASCAT pass shows strong trades between 67W-75W, with
fresh trades elsewhere from 10.5N-18N between 63W-79W. Moderate
winds are seen elsewhere.

High pressure N of the area will support fresh to strong trade
winds across the central Caribbean, and gentle to moderate winds
over most of the remainder of the basin through Sun night. The
aerial extent of the strong trades will diminish and will be
confined to the south-central Caribbean through the middle of
next week.

ATLANTIC OCEAN...

A cold front has entered the waters east of northern Florida and
extends from 32N75W to Daytona Beach Florida to the western Gulf
of Mexico. Fresh winds prevail on both sides of the cold front
north of 28N between 69W-81W. Strong winds are north of 30N.
Only isolated showers are noted with this front. The front will
move across the waters N of the Bahamas through Sun.

A cold front extends from 32N46W to 28N52W to 25.5N61W. It
continues WSW as a stationary front from 25.5N61W to the Bahamas
near 23N75W. A surface trough is analyzed from 23N75W across
Cuba to 21N83W. Scattered moderate convection is seen over
portions of the central and southeastern Bahamas from 22N-24N
between 72.5W-76W. Scattered showers and isolated tstorms are
elsewhere within 60 nm of the surface trough and stationary
front. Isolated showers are along the cold front. A 1025 mb high
is centered near 29N37W. A weak surface trough extends across
the Canary Islands from 31N14W to 25N23W with isolated showers.

Weak low pressure in the Gulf of Mexico will track ENE across
South Florida into the Bahamas Sun through Mon night, enhancing
winds and generating numerous showers and thunderstorms. In the
wake of the low, a cold front will move across the waters east
of Florida and the northern Bahamas through Mon night, then
stall from near 29N65W to central Cuba late Tue.

$$
Hagen