Atlantic Tropical Weather Outlook


000
ABNT20 KNHC 141129
TWOAT

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
700 AM EST Thu Nov 14 2024

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

Active systems:
The National Hurricane Center is issuing advisories on recently
formed Tropical Depression Nineteen, located over the western
Caribbean Sea.

Tropical cyclone formation is not expected in the next 7 days.

&&
Public Advisories on Tropical Depression Nineteen are issued
under WMO header WTNT34 KNHC and under AWIPS header MIATCPAT4.
Forecast/Advisories on Tropical Depression Nineteen are
issued under WMO header WTNT24 KNHC and under AWIPS header
MIATCMAT4.

$$
Forecaster Kelly

Summary for Tropical Depression Nineteen (AT4/AL192024)

...LIFE-THREATENING FLASH FLOODING EXPECTED IN HONDURAS THROUGH  THE WEEKEND...
 As of 7:00 AM EST Thu Nov 14
 the center of Nineteen was located near 15.9, -82.2
 with movement W at 15 mph.
 The minimum central pressure was 1004 mb
 with maximum sustained winds of about 35 mph.

Tropical Depression Nineteen Public Advisory Number 3A

Issued at 700 AM EST Thu Nov 14 2024  

000
WTNT34 KNHC 141148
TCPAT4
 
BULLETIN
Tropical Depression Nineteen Intermediate Advisory Number 3A
NWS National Hurricane Center Miami FL       AL192024
700 AM EST Thu Nov 14 2024
 
...LIFE-THREATENING FLASH FLOODING EXPECTED IN HONDURAS THROUGH 
THE WEEKEND...
 
 
SUMMARY OF 700 AM EST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...15.9N 82.2W
ABOUT 250 MI...400 KM E OF ISLA GUANAJA HONDURAS
ABOUT 90  MI...150 KM NE OF CABO GRACIAS A DIOS ON NIC/HON BORDER
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...W OR 265 DEGREES AT 15 MPH...24 KM/H
MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
None.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Hurricane Watch is in effect for...
* Punta Castilla to the Honduras/Nicaragua Border
* The Bay Islands of Honduras
 
A Tropical Storm Warning is in effect for...
* Punta Sal to the Honduras/Nicaragua Border
* The Bay Islands of Honduras
 
A Tropical Storm Watch is in effect for...
* Honduras/Nicaragua Border to Puerto Cabezas
 
A Hurricane Watch means that hurricane conditions are possible
within the watch area.  A watch is typically issued 48 hours
before the anticipated first occurrence of tropical-storm-force
winds, conditions that make outside preparations difficult or
dangerous.
 
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area within 36 hours.
 
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.
 
Interests elsewhere in Honduras, Guatemala, Belize and the 
Yucatan Peninsula should monitor the progress of this system.  

For storm information specific to your area, please monitor 
products issued by your national meteorological service.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 700 AM EST (1200 UTC), the center of Tropical Depression Nineteen
was located near latitude 15.9 North, longitude 82.2 West. The
depression is moving toward the west near 15 mph (24 km/h). This
motion should continue through today, taking the system across the
western Caribbean Sea. The depression is expected to stall and
meander near the north coast of Honduras late Friday and through the
weekend.
 
Maximum sustained winds are near 35 mph (55 km/h) with higher
gusts. Some strengthening is forecast during the next 48 hours. The
depression is forecast to become a tropical storm later today and
continue strengthening, if it remains over water.
 
The estimated minimum central pressure is 1004 mb (29.65 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
Key Messages for Tropical Depression Nineteen can be found in the
Tropical Cyclone Discussion under AWIPS header MIATCDAT4 and WMO
header WTNT44 KNHC and on the web at
hurricanes.gov/text/MIATCDAT4.shtml
 
RAINFALL: Through early next week, rainfall amounts of 10 to 20
inches with isolated storm totals around 30 inches area expected
over northern Honduras. This rainfall will lead to widespread areas
of life-threatening and potentially catastrophic flash flooding and
mudslides, especially along and near the Sierra La Esperanza.
 
Elsewhere across the rest of Honduras, Belize, El Salvador, eastern
Guatemala, and western Nicaragua, Tropical Depression Nineteen is
expected to produce 5 to 10 inches of rain with localized totals
around 15 inches through early next week. This will result in areas
of flash flooding, perhaps significant, along with the potential of
mudslides.
 
For a complete depiction of forecast rainfall associated with
Tropical Depression Nineteen, please see the National Weather
Service Storm Total Rainfall Graphic, available at
hurricanes.gov/refresh/graphics_at4+shtml/205755.shtml?
rainqpf#contents
 
WIND: Hurricane conditions are possible within the watch area by
Friday. Tropical storm conditions are expected in the warning area
and possible in the watch area beginning later today.
 
STORM SURGE: Storm surge could raise water levels by as much as 1
to 3 feet above normal tide levels along the immediate coast in
areas of onshore winds along the northern coast of Honduras. Near
the coast, the surge will be accompanied by large and destructive
waves.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 1000 AM EST.
 
$$
Forecaster Kelly
 

Tropical Depression Nineteen Forecast Advisory Number 3

Issued at 0900 UTC THU NOV 14 2024  

000
WTNT24 KNHC 140846
TCMAT4
 
TROPICAL DEPRESSION NINETEEN FORECAST/ADVISORY NUMBER   3
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL192024
0900 UTC THU NOV 14 2024
 
TROPICAL DEPRESSION CENTER LOCATED NEAR 15.9N  81.7W AT 14/0900Z
POSITION ACCURATE WITHIN  40 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 265 DEGREES AT  14 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1004 MB
MAX SUSTAINED WINDS  30 KT WITH GUSTS TO  40 KT.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT.  RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.
 
REPEAT...CENTER LOCATED NEAR 15.9N  81.7W AT 14/0900Z
AT 14/0600Z CENTER WAS LOCATED NEAR 15.9N  81.2W
 
FORECAST VALID 14/1800Z 15.9N  83.1W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 40NE   0SE   0SW  40NW.
 
FORECAST VALID 15/0600Z 16.0N  84.4W
MAX WIND  40 KT...GUSTS  50 KT.
34 KT... 70NE  40SE  40SW  70NW.
 
FORECAST VALID 15/1800Z 16.1N  85.1W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 20NE  10SE  10SW  20NW.
34 KT... 80NE  40SE  50SW  90NW.
 
FORECAST VALID 16/0600Z 15.9N  85.3W...NEAR THE COAST
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 30NE  10SE  10SW  30NW.
34 KT... 90NE  40SE  40SW  90NW.
 
FORECAST VALID 16/1800Z 15.9N  85.3W...NEAR THE COAST
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 40NE  10SE  10SW  30NW.
34 KT... 90NE  40SE  40SW  90NW.
 
FORECAST VALID 17/0600Z 15.9N  85.8W...INLAND
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 30NE  10SE  10SW  30NW.
34 KT... 80NE  40SE  40SW  80NW.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 125 NM
ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
 
OUTLOOK VALID 18/0600Z 17.1N  87.8W...OVER WATER
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 30NE  10SE  10SW  30NW.
34 KT... 80NE  40SE  40SW  70NW.
 
OUTLOOK VALID 19/0600Z 20.4N  89.7W...INLAND
MAX WIND  45 KT...GUSTS  55 KT.
34 KT...110NE  70SE  60SW  80NW.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 15.9N  81.7W
 
INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 14/1200Z
 
NEXT ADVISORY AT 14/1500Z
 
$$
FORECASTER HAGEN
 
 

Tropical Depression Nineteen Forecast Discussion Number 3

Issued at 400 AM EST Thu Nov 14 2024  

000
WTNT44 KNHC 140848
TCDAT4
 
Tropical Depression Nineteen Discussion Number   3
NWS National Hurricane Center Miami FL       AL192024
400 AM EST Thu Nov 14 2024
 
The satellite presentation of the system has gradually been 
improving.  The latest subjective intensity estimates from TAFB and 
SAB are both T-2.0/30 kt.  Based on the subjective Dvorak estimates 
and the improvement in the convective structure noted on satellite 
imagery, the system is upgraded to a tropical depression.  This is 
supported by data from the Indian Oceansat scatterometer, which 
shows a well-defined circulation.  The intensity is set to 30 kt 
based on the Dvorak estimates.
 
Tropical Depression Nineteen has been moving faster, just south of 
due west, or 265/14 kt, although it should begin slowing down later 
today.  A mid-level ridge centered to the north of the depression 
over the Straits of Florida should keep it on a westward track until 
Friday, taking the system near the north coast of eastern Honduras, 
and possibly inland.  After that, the ridge is expected to break 
down, and the models agree that the cyclone will meander in weak 
steering currents late Friday through the weekend.  This expected 
slow motion will cause the system to produce heavy rains over the 
same region, likely causing life-threatening flooding over portions 
of Central America.  By early next week, ridging should become 
re-established over Florida and the eastern Gulf of Mexico, which 
should cause the system to move northwestward across Belize and the 
Yucatan Peninsula.  Very little change was made to the first 3 days 
of the track forecast.  Beyond day 3, there has been a notable 
westward shift in the track guidance.  The NHC forecast is a bit 
west of the previous forecast beyond day 3, but not as far west as 
the bulk of the latest model guidance.
 
Environmental conditions are conducive for intensification during 
the next day or two while the system remains over water, with low 
vertical wind shear and relatively high mid-level humidities. 
However, there is a significant amount of uncertainty in how much 
land interaction with Honduras occurs.  The majority of the models 
are showing the center move just barely inland over Honduras, or 
parking it right on the coastline, between hour 48 and 72. However, 
if the system stays offshore, as shown by the latest HWRF model 
solution, it could take advantage of the conducive atmospheric and 
oceanic conditions and continue to strengthen.  The latest NHC 
intensity forecast is similar to the previous one through 36 h, but 
then is about 5 kt lower than the previous forecast since this 
forecast shows a bit more land interaction beyond 36 h.  The latest 
NHC intensity forecast is above the high end of the guidance 
envelope beyond 36 h.
 
KEY MESSAGES:
 
1. Through early next week, heavy rainfall will cause significant,
life-threatening flash flooding and mudslides across portions of
Central America, particularly Honduras, Belize, El Salvador, eastern
Guatemala, and western Nicaragua.
 
2. The disturbance is forecast to be near hurricane strength when
it moves near the eastern coast of Honduras on Friday and Saturday.
Hurricane watches and tropical storm warnings are in effect for
portions of that area.
 
3. The system is forecast to approach Belize and the Yucatan
Peninsula of Mexico at or near hurricane strength by early next week
where there is a risk of dangerous storm surge and damaging winds.
Residents in these areas should monitor the latest forecast updates
and ensure that they have their hurricane plan in place.
 
4. It is too soon to determine what impacts the system could bring
to portions of the eastern Gulf of Mexico, including Florida, the
Florida Keys, and Cuba during the middle portion of next week.
Residents in these areas should regularly monitor updates to the
forecast.
 
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  14/0900Z 15.9N  81.7W   30 KT  35 MPH
 12H  14/1800Z 15.9N  83.1W   35 KT  40 MPH
 24H  15/0600Z 16.0N  84.4W   40 KT  45 MPH
 36H  15/1800Z 16.1N  85.1W   50 KT  60 MPH
 48H  16/0600Z 15.9N  85.3W   55 KT  65 MPH...NEAR THE COAST
 60H  16/1800Z 15.9N  85.3W   55 KT  65 MPH...NEAR THE COAST
 72H  17/0600Z 15.9N  85.8W   50 KT  60 MPH...INLAND
 96H  18/0600Z 17.1N  87.8W   55 KT  65 MPH...OVER WATER
120H  19/0600Z 20.4N  89.7W   45 KT  50 MPH...INLAND
 
$$
Forecaster Hagen
 

Tropical Depression Nineteen Wind Speed Probabilities Number 3

Issued at 0900 UTC THU NOV 14 2024


729 
FONT14 KNHC 140848
PWSAT4
                                                                    
TROPICAL DEPRESSION NINETEEN WIND SPEED PROBABILITIES NUMBER   3    
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL192024               
0900 UTC THU NOV 14 2024                                            
                                                                    
AT 0900Z THE CENTER OF TROPICAL DEPRESSION NINETEEN WAS LOCATED NEAR
LATITUDE 15.9 NORTH...LONGITUDE 81.7 WEST WITH MAXIMUM SUSTAINED    
WINDS NEAR 30 KTS...35 MPH...55 KM/H.                               
                                                                    
Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH)                  
   ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME      
   EASTERN  STANDARD TIME (EST)...SUBTRACT 5 HOURS FROM Z TIME      
   CENTRAL  STANDARD TIME (CST)...SUBTRACT 6 HOURS FROM Z TIME      
                                                                    
WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS                 
                                                                    
CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST     
   ...34 KT (39 MPH... 63 KM/H)...                                  
   ...50 KT (58 MPH... 93 KM/H)...                                  
   ...64 KT (74 MPH...119 KM/H)...                                  
FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS               
                                                                    
PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE               
    OP  IS THE PROBABILITY OF THE EVENT BEGINNING DURING            
        AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY)               
   (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN           
        06Z THU AND THE FORECAST HOUR (CUMULATIVE PROBABILITY)      
                                                                    
PROBABILITIES ARE GIVEN IN PERCENT                                  
X INDICATES PROBABILITIES LESS THAN 1 PERCENT                       
PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN
THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT.             
PROBABILITIES FOR 34...50...64 KT SHOWN WHEN THE 5-DAY              
64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT.                 
                                                                    
                                                                    
  - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - -   
                                                                    
               FROM    FROM    FROM    FROM    FROM    FROM    FROM 
  TIME       06Z THU 18Z THU 06Z FRI 18Z FRI 06Z SAT 06Z SUN 06Z MON
PERIODS         TO      TO      TO      TO      TO      TO      TO  
             18Z THU 06Z FRI 18Z FRI 06Z SAT 06Z SUN 06Z MON 06Z TUE
                                                                    
FORECAST HOUR    (12)   (24)    (36)    (48)    (72)    (96)   (120)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
LOCATION       KT                                                   
                                                                    
FRONTERA MX    34  X   X( X)   X( X)   X( X)   X( X)   X( X)   3( 3)
 
MERIDA MX      34  X   X( X)   X( X)   X( X)   X( X)   1( 1)   5( 6)
 
COZUMEL MX     34  X   X( X)   1( 1)   1( 2)   3( 5)   3( 8)   6(14)
 
BELIZE CITY    34  X   X( X)   2( 2)   4( 6)  10(16)   9(25)   6(31)
BELIZE CITY    50  X   X( X)   X( X)   1( 1)   1( 2)   2( 4)   3( 7)
 
PUERTO BARRIOS 34  X   X( X)   1( 1)   5( 6)   9(15)   5(20)   3(23)
 
GUANAJA        34  X   6( 6)  25(31)  14(45)  21(66)   3(69)   1(70)
GUANAJA        50  X   1( 1)   4( 5)   7(12)  10(22)   2(24)   1(25)
GUANAJA        64  X   X( X)   1( 1)   X( 1)   3( 4)   X( 4)   1( 5)
 
PUERTO CABEZAS 34  X   X( X)   X( X)   2( 2)   4( 6)   X( 6)   X( 6)
 
S SALVADOR     34  X   X( X)   X( X)   1( 1)   X( 1)   1( 2)   1( 3)
 
TEGUCIGALPA    34  X   X( X)   X( X)   2( 2)   5( 7)   1( 8)   1( 9)
 
P SAN JOSE     34  X   X( X)   X( X)   X( X)   1( 1)   1( 2)   2( 4)
 
SAN ANDRES     34  X   X( X)   X( X)   2( 2)   1( 3)   1( 4)   X( 4)
 
CP SAN ANTONIO 34  X   X( X)   X( X)   1( 1)   X( 1)   1( 2)   3( 5)
 
GRAND CAYMAN   34  X   1( 1)   1( 2)   X( 2)   3( 5)   X( 5)   X( 5)
 
$$                                                                  
FORECASTER HAGEN                                                    

Tropical Depression Nineteen Graphics


Tropical Depression Nineteen 5-Day Uncertainty Track Image
5-Day Uncertainty Track last updated Thu, 14 Nov 2024 11:49:03 GMT

Tropical Depression Nineteen 34-Knot Wind Speed Probabilities
Wind Speed Probabilities last updated Thu, 14 Nov 2024 09:22:46 GMT