Atlantic Tropical Weather Outlook

224 
ABNT20 KNHC 141142
TWOAT

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
800 AM EDT Tue Oct 14 2025

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

Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Storm Lorenzo, located over the central tropical Atlantic.

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

$$
Forecaster Cangialosi

Summary for Tropical Storm Lorenzo (AT2/AL122025)

...LORENZO POORLY ORGANIZED OVER THE CENTRAL TROPICAL ATLANTIC... As of 5:00 AM AST Tue Oct 14 the center of Lorenzo was located near 17.3, -44.1 with movement NW at 15 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 60 mph.

Tropical Storm Lorenzo Public Advisory Number 5

Issued at 500 AM AST Tue Oct 14 2025 
671 
WTNT32 KNHC 140850
TCPAT2
 
BULLETIN
Tropical Storm Lorenzo Advisory Number   5
NWS National Hurricane Center Miami FL       AL122025
500 AM AST Tue Oct 14 2025
 
...LORENZO POORLY ORGANIZED OVER THE CENTRAL TROPICAL ATLANTIC...
 
 
SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...17.3N 44.1W
ABOUT 1330 MI...2145 KM W OF THE CABO VERDE ISLANDS
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...NW OR 310 DEGREES AT 15 MPH...24 KM/H
MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES
 
 
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 500 AM AST (0900 UTC), the center of Tropical Storm Lorenzo was
located near latitude 17.3 North, longitude 44.1 West. Lorenzo is
moving toward the northwest near 15 mph (24 km/h) and this motion is
expected to continue today, followed by a turn to the north tonight.
A northeastward motion is expected on Wednesday and Thursday.
 
Maximum sustained winds are near 60 mph (95 km/h) with higher gusts.
Little change in strength is forecast over the next few days.
 
Tropical-storm-force winds extend outward up to 175 miles (280 km)
from the center.
 
The estimated minimum central pressure is 1000 mb (29.53 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
None.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 1100 AM AST.
 
$$
Forecaster Hagen

Tropical Storm Lorenzo Forecast Advisory Number 5

Issued at 0900 UTC TUE OCT 14 2025 
797 
WTNT22 KNHC 140849
TCMAT2
 
TROPICAL STORM LORENZO FORECAST/ADVISORY NUMBER   5
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL122025
0900 UTC TUE OCT 14 2025
 
TROPICAL STORM CENTER LOCATED NEAR 17.3N  44.1W AT 14/0900Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT  13 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1000 MB
MAX SUSTAINED WINDS  50 KT WITH GUSTS TO  60 KT.
50 KT....... 30NE   0SE   0SW   0NW.
34 KT....... 90NE 150SE   0SW  80NW.
4 M SEAS....150NE 180SE  45SW  90NW.
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 17.3N  44.1W AT 14/0900Z
AT 14/0600Z CENTER WAS LOCATED NEAR 16.7N  43.4W
 
FORECAST VALID 14/1800Z 18.4N  44.8W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 30NE   0SE   0SW   0NW.
34 KT... 70NE 110SE   0SW  50NW.
 
FORECAST VALID 15/0600Z 20.5N  44.8W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 30NE  20SE   0SW   0NW.
34 KT... 60NE  90SE  20SW  40NW.
 
FORECAST VALID 15/1800Z 23.0N  43.5W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 30NE  30SE   0SW   0NW.
34 KT... 50NE  60SE  20SW  30NW.
 
FORECAST VALID 16/0600Z 25.5N  41.0W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 30NE  30SE  15SW   0NW.
34 KT... 50NE  50SE  30SW  30NW.
 
FORECAST VALID 16/1800Z 27.9N  37.4W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 20NE  30SE  15SW   0NW.
34 KT... 50NE  60SE  30SW  30NW.
 
FORECAST VALID 17/0600Z 29.4N  34.0W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 20NE  30SE  15SW   0NW.
34 KT... 50NE  60SE  30SW  30NW.
 
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 28.5N  30.0W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT... 40NE  40SE  30SW  30NW.
 
OUTLOOK VALID 19/0600Z 25.9N  32.5W...POST-TROPICAL
MAX WIND  40 KT...GUSTS  50 KT.
34 KT... 40NE  40SE  30SW  30NW.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.3N  44.1W
 
NEXT ADVISORY AT 14/1500Z
 
$$
FORECASTER HAGEN

Tropical Storm Lorenzo Forecast Discussion Number 5

Issued at 500 AM AST Tue Oct 14 2025 
000
WTNT42 KNHC 140851
TCDAT2
 
Tropical Storm Lorenzo Discussion Number   5
NWS National Hurricane Center Miami FL       AL122025
500 AM AST Tue Oct 14 2025
 
Lorenzo has the appearance of a sheared tropical cyclone, with the
estimated center exposed about 30 to 45 n mi outside the
northwestern edge of the cyclone's main convective mass.  GOES-19
proxy vis imagery suggests that Lorenzo's exposed low-level center
has been moving farther away from the convection to the northwest
over the past several hours.  Lorenzo is struggling, even though
SHIPS guidance and UW-CIMSS analyses indicate that the cyclone has
reached a lower wind shear environment compared to the stronger
shear it was experiencing yesterday, since the upper low to the west
of Lorenzo has moved farther away.  The latest subjective and
objective intensity estimates range from 31-45 kt.  The initial
intensity will be maintained at 50 kt for this advisory based on the
earlier evening ASCAT data, but if convection doesn't develop closer
to the low-level center soon, then the winds could start to
decrease.
 
The initial motion estimate is northwestward, or 310 degrees at 13
kt.  The northwest motion should continue today as Lorenzo
approaches a weakness in the subtropical ridge.  A turn to the north
is expected tonight, with a northeastward motion expected Wednesday
and Thursday as the storm moves around the northwestern periphery of
the subtropical ridge into the faster flow regime of the
mid-latitude westerlies.  The NHC forecast was nudged slightly
westward through the first 60 hours, and is very near the HFIP
Corrected Consensus (HCCA) model during that time period.
Thereafter, the forecast is more or less similar to the previous NHC
prediction, showing a partial clockwise loop from days 3-5, as
Lorenzo (or its remnants) rotate southeastward and then
southwestward around the aforementioned subtropical high.
 
Yesterday, some of the global and regional models like the GFS, HWRF
and HMON, as well as some of the ECMWF and Google DeepMind ensemble
members were holding onto Lorenzo through the 5-day period, even
indicating some strengthening over the next few days. However, the
latest cycle of global and regional models all show Lorenzo either
dissipating completely or becoming a remnant low by hour 72, with
fewer ECMWF and Google Deep Mind ensemble members holding onto the
system compared to the previous few cycles.  In fact, most of the
reliable model guidance shows a steady intensity for a day or so,
followed by weakening, and then dissipation in about 3 days.  The
new NHC intensity forecast is slightly lower than the previous
prediction, but will not bite off yet on the aforementioned model
solutions since Lorenzo is forecast to remain in relatively low
shear and warm ocean temperatures for the next few days.  The NHC
intensity forecast is at the high end of the intensity guidance
suite through hour 12, and then is above all of the intensity models
from hour 24 onward.  The intensity forecast is low confidence, and
it's possible that Lorenzo could dissipate sooner than forecast.
 
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  14/0900Z 17.3N  44.1W   50 KT  60 MPH
 12H  14/1800Z 18.4N  44.8W   50 KT  60 MPH
 24H  15/0600Z 20.5N  44.8W   50 KT  60 MPH
 36H  15/1800Z 23.0N  43.5W   55 KT  65 MPH
 48H  16/0600Z 25.5N  41.0W   55 KT  65 MPH
 60H  16/1800Z 27.9N  37.4W   50 KT  60 MPH
 72H  17/0600Z 29.4N  34.0W   50 KT  60 MPH
 96H  18/0600Z 28.5N  30.0W   45 KT  50 MPH
120H  19/0600Z 25.9N  32.5W   40 KT  45 MPH...POST-TROPICAL
 
$$
Forecaster Hagen

Tropical Storm Lorenzo Wind Speed Probabilities Number 5

Issued at 0900 UTC TUE OCT 14 2025 
000
FONT12 KNHC 140850
PWSAT2
                                                                    
TROPICAL STORM LORENZO WIND SPEED PROBABILITIES NUMBER   5          
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL122025               
0900 UTC TUE OCT 14 2025                                            
                                                                    
AT 0900Z THE CENTER OF TROPICAL STORM LORENZO WAS LOCATED NEAR      
LATITUDE 17.3 NORTH...LONGITUDE 44.1 WEST WITH MAXIMUM SUSTAINED    
WINDS NEAR 50 KTS...60 MPH...95 KM/H.                               
                                                                    
Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH)                  
   ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME      
   EASTERN  DAYLIGHT TIME (EDT)...SUBTRACT 4 HOURS FROM Z TIME      
   CENTRAL  DAYLIGHT TIME (CDT)...SUBTRACT 5 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 TUE 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 TUE 18Z TUE 06Z WED 18Z WED 06Z THU 06Z FRI 06Z SAT
PERIODS         TO      TO      TO      TO      TO      TO      TO  
             18Z TUE 06Z WED 18Z WED 06Z THU 06Z FRI 06Z SAT 06Z SUN
                                                                    
FORECAST HOUR    (12)   (24)    (36)    (48)    (72)    (96)   (120)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
LOCATION       KT                                                   
                                                                    
$$                                                                  
FORECASTER HAGEN

Tropical Storm Lorenzo Graphics


Tropical Storm Lorenzo 5-Day Uncertainty Track Image

5-Day Uncertainty Track last updated Tue, 14 Oct 2025 08:52:41 GMT

Tropical Storm Lorenzo 34-Knot Wind Speed Probabilities
Wind Speed Probabilities last updated Tue, 14 Oct 2025 09:22:27 GMT