Eastern North Pacific Tropical Weather Outlook

847 
ABPZ20 KNHC 251718
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Sat Jul 25 2026

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Hurricane
Fausto, located well east of the Hawaiian Islands, and on Tropical
Storm Genevieve, located well south of the southwestern coast of
Mexico.

Well Southwest of Hawaii:
A large area of disorganized showers and thunderstorms located well
southwest of the Hawaiian Islands is associated with a broad area of
low pressure. Environmental conditions appear conducive for gradual
development of this system while it moves generally westward at
about 10 mph toward the International Date Line, and a tropical
depression is likely to form in the western Pacific basin early next
week.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 7 days...high...70 percent.

&&
Products issued by the U.S. Joint Typhoon Warning Center can be
found at: www.metoc.navy.mil/jtwc/jtwc.html

Official tropical cyclone forecast information issued by the Japan
Meteorological Agency for the western Pacific basin can be found at:
www.jma.go.jp/jma/jma-eng/jma-center/rsmc-hp-pub-eg/RSMC_HP.html

$$
Forecaster Reinhart

Summary for Hurricane Fausto (EP1/EP062026)

...FAUSTO CONTINUES WESTWARD... ...EXPECTED TO MOVE INTO THE CENTRAL PACIFIC EARLY SUNDAY... As of 11:00 AM HST Sat Jul 25 the center of Fausto was located near 19.3, -137.6 with movement W at 14 mph. The minimum central pressure was 971 mb with maximum sustained winds of about 100 mph.

Hurricane Fausto Public Advisory Number 28

Issued at 1100 AM HST Sat Jul 25 2026 226 
WTPZ31 KNHC 252034
TCPEP1
 
BULLETIN
Hurricane Fausto Advisory Number  28
NWS National Hurricane Center Miami FL       EP062026
1100 AM HST Sat Jul 25 2026
 
...FAUSTO CONTINUES WESTWARD...
...EXPECTED TO MOVE INTO THE CENTRAL PACIFIC EARLY SUNDAY...
 
 
SUMMARY OF 1100 AM HST...2100 UTC...INFORMATION
-----------------------------------------------
LOCATION...19.3N 137.6W
ABOUT 1140 MI...1835 KM E OF HILO HAWAII
MAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H
PRESENT MOVEMENT...W OR 280 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...971 MB...28.68 INCHES
 
 
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
 
Interests in the Hawaiian Islands should monitor the progress of
Fausto.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 1100 AM HST (2100 UTC), the center of Hurricane Fausto was 
located near latitude 19.3 North, longitude 137.6 West. Fausto is 
moving toward the west near 14 mph (22 km/h), and this general 
motion is expected to continue for the next several days.
 
Maximum sustained winds are near 100 mph (155 km/h) with higher 
gusts. Gradual weakening is forecast during the next several days.
 
Hurricane-force winds extend outward up to 40 miles (65 km) from the
center and tropical-storm-force winds extend outward up to 185 miles
(295 km).
 
The estimated minimum central pressure is 971 mb (28.68 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
Key messages for Fausto can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDEP1 and WMO header WTPZ41 KNHC.
 
SURF: Surf generated by Fausto is expected to begin building across
east-facing shores of the eastern end of Hawaii on Sunday, spreading 
westward Sunday night into Monday, and continue building through 
Tuesday as Fausto approaches and moves into the area. These
swells are likely to cause life-threatening surf and rip current
conditions. Please consult products from your local weather office.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 500 PM HST.
 
$$
Forecaster Reinhart

Hurricane Fausto Forecast Advisory Number 28

Issued at 2100 UTC SAT JUL 25 2026 000
WTPZ21 KNHC 252033
TCMEP1
 
HURRICANE FAUSTO FORECAST/ADVISORY NUMBER  28
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP062026
2100 UTC SAT JUL 25 2026
 
HURRICANE CENTER LOCATED NEAR 19.3N 137.6W AT 25/2100Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT  12 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  971 MB
EYE DIAMETER  25 NM
MAX SUSTAINED WINDS  85 KT WITH GUSTS TO 105 KT.
64 KT....... 35NE  25SE  20SW  35NW.
50 KT....... 70NE  40SE  40SW  60NW.
34 KT.......160NE 130SE 100SW 160NW.
4 M SEAS....270NE 240SE 270SW 300NW.
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 19.3N 137.6W AT 25/2100Z
AT 25/1800Z CENTER WAS LOCATED NEAR 19.2N 137.0W
 
FORECAST VALID 26/0600Z 19.6N 139.2W
MAX WIND  80 KT...GUSTS 100 KT.
64 KT... 30NE  20SE  15SW  30NW.
50 KT... 60NE  40SE  40SW  60NW.
34 KT...150NE 120SE  90SW 150NW.
 
FORECAST VALID 26/1800Z 20.0N 141.6W
MAX WIND  75 KT...GUSTS  90 KT.
64 KT... 25NE  15SE  15SW  25NW.
50 KT... 60NE  40SE  30SW  50NW.
34 KT...140NE 110SE  80SW 140NW.
 
FORECAST VALID 27/0600Z 20.4N 144.3W
MAX WIND  70 KT...GUSTS  85 KT.
64 KT... 25NE  10SE  10SW  25NW.
50 KT... 50NE  30SE  30SW  50NW.
34 KT...130NE 110SE  70SW 130NW.
 
FORECAST VALID 27/1800Z 20.9N 147.0W
MAX WIND  65 KT...GUSTS  80 KT.
64 KT... 20NE   0SE   0SW  15NW.
50 KT... 40NE  30SE  20SW  40NW.
34 KT...120NE 100SE  60SW 120NW.
 
FORECAST VALID 28/0600Z 21.5N 149.6W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 40NE  20SE   0SW  30NW.
34 KT...110NE  80SE  50SW 110NW.
 
FORECAST VALID 28/1800Z 22.1N 152.3W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 30NE  10SE   0SW  20NW.
34 KT...100NE  60SE  40SW  90NW.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 100 NM
ON DAY 4 AND 125 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
 
OUTLOOK VALID 29/1800Z 23.0N 157.0W
MAX WIND  40 KT...GUSTS  50 KT.
34 KT... 70NE  20SE   0SW  50NW.
 
OUTLOOK VALID 30/1800Z 24.0N 162.0W
MAX WIND  30 KT...GUSTS  40 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 19.3N 137.6W
 
NEXT ADVISORY AT 26/0300Z
 
$$
FORECASTER REINHART

Hurricane Fausto Forecast Discussion Number 28

Issued at 1100 AM HST Sat Jul 25 2026 171 
WTPZ41 KNHC 252035
TCDEP1
 
Hurricane Fausto Discussion Number  28
NWS National Hurricane Center Miami FL       EP062026
1100 AM HST Sat Jul 25 2026
 
The satellite presentation of Fausto has not changed much since 
earlier this morning. The ragged, 25 n mi wide eye of the hurricane 
is surrounded by a ring of deep convection that has intermittently 
been disrupted by some intrusions of dry air. The latest D-MINT, 
D-PRINT, and AiDT estimates from UW-CIMSS are all hovering around 85 
kt, which is the basis for holding the initial intensity there for 
this advisory. A NOAA G-IV synoptic surveillance mission is 
currently underway to sample the environment around Fausto.

Fausto is moving into a drier mid-level environment over marginal 
sea-surface temperatures, and southwesterly vertical wind shear is 
expected to increase after 36 h while the system moves over the 
central Pacific basin. The intensity models unanimously agree that 
Fausto will weaken on its approach to the Hawaiian Islands. The NHC 
intensity forecast is similar to the previous one and remains near 
the simple (IVCN) and corrected (HCCA) consensus aids. A faster rate 
of weakening is shown from 60-120 h once environmental conditions 
become increasingly hostile. As Fausto moves toward the Hawaiian 
Islands, the wind field is predicted to shrink and become 
asymmetric, with the strongest winds becoming displaced to the 
northern side of the circulation. 

A narrow subtropical ridge over the eastern and central Pacific 
Ocean continues to steer the hurricane toward the west at 12 kt. 
Fausto is expected to maintain this westward heading through early 
next week, bringing the system into the central Pacific basin 
tomorrow and toward Hawaii thereafter. A mid-level trough over the 
north-central Pacific may weaken the steering ridge enough early 
next week to induce a more west-northwestward motion later in the 
period. The track guidance trended northward once again and is 
coming into better agreement that Fausto should pass near but to the 
north of the Hawaiian Islands, making its closest approach during 
the middle of next week. The NHC forecast was nudged north of the 
previous prediction between 60-120 h, toward the latest consensus 
aids (TVCN, HCCA) and Google Deep Mind ensemble mean (GDMI). 

Regardless of the exact track, there is high confidence that Fausto 
will produce large swells, increased surf, and dangerous rip 
currents while it approaches and passes near the Hawaiian Islands. 
Based on the predicted sheared nature of the storm, the risk of 
sustained tropical-force-winds on land should be low as long as the 
forecast track stays north of the islands. Interests in Hawaii 
should continue to monitor the latest forecast updates.
 
 
Key Messages:
 
1. Fausto is expected to weaken as it approaches the Hawaiian 
Islands early next week. While the chances of the strongest winds 
and heaviest rainfall remaining offshore north of the islands are 
increasing, interests across Hawaii should continue to monitor the 
progress of Fausto.
 
2. Confidence is high that swells generated by Fausto will reach the 
Hawaiian Islands well in advance of the cyclone, producing 
increasing surf and dangerous rip currents. Surf is expected to 
begin building across east-facing shores of the eastern end of the 
state on Sunday, spreading westward Sunday night into Monday, and 
continue building through Tuesday as Fausto approaches and moves 
into the area.
 
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  25/2100Z 19.3N 137.6W   85 KT 100 MPH
 12H  26/0600Z 19.6N 139.2W   80 KT  90 MPH
 24H  26/1800Z 20.0N 141.6W   75 KT  85 MPH
 36H  27/0600Z 20.4N 144.3W   70 KT  80 MPH
 48H  27/1800Z 20.9N 147.0W   65 KT  75 MPH
 60H  28/0600Z 21.5N 149.6W   55 KT  65 MPH
 72H  28/1800Z 22.1N 152.3W   50 KT  60 MPH
 96H  29/1800Z 23.0N 157.0W   40 KT  45 MPH
120H  30/1800Z 24.0N 162.0W   30 KT  35 MPH
 
$$
Forecaster Reinhart

Hurricane Fausto Wind Speed Probabilities Number 28

Issued at 2100 UTC SAT JUL 25 2026 225 
FOPZ11 KNHC 252034
PWSEP1
                                                                    
HURRICANE FAUSTO WIND SPEED PROBABILITIES NUMBER  28                
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP062026               
2100 UTC SAT JUL 25 2026                                            
                                                                    
AT 2100Z THE CENTER OF HURRICANE FAUSTO WAS LOCATED NEAR LATITUDE   
19.3 NORTH...LONGITUDE 137.6 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 
85 KTS...100 MPH...155 KM/H.                                        
                                                                    
Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH)                  
   PACIFIC  DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME      
   HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 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           
        18Z SAT 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       18Z SAT 06Z SUN 18Z SUN 06Z MON 18Z MON 18Z TUE 18Z WED
PERIODS         TO      TO      TO      TO      TO      TO      TO  
             06Z SUN 18Z SUN 06Z MON 18Z MON 18Z TUE 18Z WED 18Z THU
                                                                    
FORECAST HOUR    (12)   (24)    (36)    (48)    (72)    (96)   (120)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
LOCATION       KT                                                   
                                                                    
20N 135W       34 89   X(89)   X(89)   X(89)   X(89)   X(89)   X(89)
 
20N 140W       34 99   1(99)   X(99)   X(99)   X(99)   X(99)   X(99)
20N 140W       50 29  65(94)   X(94)   X(94)   X(94)   X(94)   X(94)
20N 140W       64  6  60(66)   X(66)   X(66)   X(66)   X(66)   X(66)
 
20N 145W       34  X   1( 1)  52(53)  14(67)   1(68)   X(68)   X(68)
20N 145W       50  X   X( X)  14(14)  14(28)   X(28)   X(28)   X(28)
20N 145W       64  X   X( X)   4( 4)   8(12)   X(12)   X(12)   X(12)
 
20N 150W       34  X   X( X)   X( X)   1( 1)   8( 9)   X( 9)   X( 9)
 
20N 151W       34  X   X( X)   X( X)   X( X)   6( 6)   X( 6)   X( 6)
 
26N 159W       34  X   X( X)   X( X)   X( X)   X( X)   1( 1)   2( 3)
 
LIHUE          34  X   X( X)   X( X)   X( X)   X( X)   1( 1)   2( 3)
 
25N 160W       34  X   X( X)   X( X)   X( X)   X( X)   1( 1)   5( 6)
 
NIHOA          34  X   X( X)   X( X)   X( X)   X( X)   X( X)   3( 3)
 
BUOY 51101     34  X   X( X)   X( X)   X( X)   X( X)   X( X)   4( 4)
 
$$                                                                  
FORECASTER REINHART

Hurricane Fausto Graphics



Hurricane Fausto 34-Knot Wind Speed Probabilities

Wind Speed Probabilities last updated Sat, 25 Jul 2026 21:22:51 GMT

Summary for Tropical Storm Genevieve (EP2/EP072026)

...GENEVIEVE NEARLY A HURRICANE AND FORECAST TO BECOME A MAJOR HURRICANE BY EARLY NEXT WEEK... As of 3:00 PM CST Sat Jul 25 the center of Genevieve was located near 11.5, -105.7 with movement WNW at 15 mph. The minimum central pressure was 993 mb with maximum sustained winds of about 70 mph.

Tropical Storm Genevieve Public Advisory Number 6

Issued at 300 PM CST Sat Jul 25 2026 000
WTPZ32 KNHC 252035
TCPEP2
 
BULLETIN
Tropical Storm Genevieve Advisory Number   6
NWS National Hurricane Center Miami FL       EP072026
300 PM CST Sat Jul 25 2026
 
...GENEVIEVE NEARLY A HURRICANE AND FORECAST TO BECOME A
MAJOR HURRICANE BY EARLY NEXT WEEK...
 
 
SUMMARY OF 300 PM CST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...11.5N 105.7W
ABOUT 510 MI...820 KM SSW OF ZIHUATANEJO MEXICO
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...WNW OR 300 DEGREES AT 15 MPH...24 KM/H
MINIMUM CENTRAL PRESSURE...993 MB...29.33 INCHES
 
 
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 300 PM CST (2100 UTC), the center of Tropical Storm Genevieve was 
located near latitude 11.5 North, longitude 105.7 West. Genevieve is 
moving toward the west-northwest near 15 mph (24 km/h) and a general 
west-northwestward to northwestward motion is expected during the 
next few days, keeping Genevieve well offshore of the coast of 
Mexico.
 
Maximum sustained winds have increased to near 70 mph (110 km/h) 
with higher gusts. Rapid intensification is forecast during the next 
couple of days. Genevieve is forecast to become a hurricane tonight 
and a major hurricane by Monday. 
 
Tropical-storm-force winds extend outward up to 125 miles (205 km)
from the center.
 
The estimated minimum central pressure is 993 mb (29.33 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
SURF:  Swells generated by Genevieve are expected to begin affecting 
portions of the southwestern coast of Mexico starting this weekend 
and will likely reach southern portions of the Baja California 
Peninsula on Monday. These swells are likely to cause 
life-threatening surf and rip current conditions.  Please consult 
products from your local weather office.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 900 PM CST.
 
$$
Forecaster Papin

Tropical Storm Genevieve Forecast Advisory Number 6

Issued at 2100 UTC SAT JUL 25 2026 000
WTPZ22 KNHC 252034
TCMEP2
 
TROPICAL STORM GENEVIEVE FORECAST/ADVISORY NUMBER   6
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP072026
2100 UTC SAT JUL 25 2026
 
TROPICAL STORM CENTER LOCATED NEAR 11.5N 105.7W AT 25/2100Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT  13 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  993 MB
MAX SUSTAINED WINDS  60 KT WITH GUSTS TO  70 KT.
50 KT....... 30NE  20SE   0SW   0NW.
34 KT.......110NE  90SE  30SW  70NW.
4 M SEAS....180NE 120SE  60SW  60NW.
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 11.5N 105.7W AT 25/2100Z
AT 25/1800Z CENTER WAS LOCATED NEAR 11.2N 105.1W
 
FORECAST VALID 26/0600Z 12.4N 107.5W
MAX WIND  70 KT...GUSTS  85 KT.
64 KT... 15NE  10SE   0SW   0NW.
50 KT... 40NE  30SE  15SW  20NW.
34 KT...120NE 110SE  50SW  90NW.
 
FORECAST VALID 26/1800Z 13.5N 109.5W
MAX WIND  85 KT...GUSTS 105 KT.
64 KT... 20NE  15SE  10SW  15NW.
50 KT... 50NE  35SE  25SW  35NW.
34 KT...140NE 130SE  50SW 100NW.
 
FORECAST VALID 27/0600Z 14.7N 111.3W
MAX WIND 105 KT...GUSTS 130 KT.
64 KT... 25NE  20SE  15SW  25NW.
50 KT... 55NE  50SE  30SW  40NW.
34 KT...130NE 130SE  60SW  90NW.
 
FORECAST VALID 27/1800Z 15.9N 112.9W
MAX WIND 115 KT...GUSTS 140 KT.
64 KT... 25NE  20SE  15SW  25NW.
50 KT... 55NE  50SE  35SW  45NW.
34 KT...130NE 130SE  70SW 100NW.
 
FORECAST VALID 28/0600Z 16.9N 114.3W
MAX WIND 110 KT...GUSTS 135 KT.
64 KT... 25NE  20SE  20SW  25NW.
50 KT... 55NE  50SE  40SW  45NW.
34 KT...120NE 120SE  70SW 110NW.
 
FORECAST VALID 28/1800Z 17.8N 115.8W
MAX WIND 105 KT...GUSTS 130 KT.
64 KT... 30NE  25SE  20SW  25NW.
50 KT... 60NE  55SE  40SW  50NW.
34 KT...120NE 120SE  80SW 110NW.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 100 NM
ON DAY 4 AND 125 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
 
OUTLOOK VALID 29/1800Z 19.0N 119.0W
MAX WIND  85 KT...GUSTS 105 KT.
50 KT... 60NE  50SE  40SW  55NW.
34 KT...120NE 110SE  90SW 110NW.
 
OUTLOOK VALID 30/1800Z 20.5N 122.5W
MAX WIND  65 KT...GUSTS  80 KT.
50 KT... 55NE  45SE  40SW  45NW.
34 KT...110NE 100SE  80SW  90NW.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 11.5N 105.7W
 
NEXT ADVISORY AT 26/0300Z
 
$$
FORECASTER PAPIN

Tropical Storm Genevieve Forecast Discussion Number 6

Issued at 300 PM CST Sat Jul 25 2026 000
WTPZ42 KNHC 252035
TCDEP2
 
Tropical Storm Genevieve Discussion Number   6
NWS National Hurricane Center Miami FL       EP072026
300 PM CST Sat Jul 25 2026
 
Genevieve continues to intensify this afternoon. The central dense 
overcast has persisted near the center and a plethora of curved 
bands continue to wrap around the western and southern semicircles 
of the storm. The Dvorak subjective intensity estimate from TAFB at 
18 UTC was still T3.5/55 kt. Since then, the objective satellite 
estimates have continued to rise. The most recent Advanced Dvorak 
Technique (ADT) estimate is now at 65 kt, with D-PRINT estimates 
over the past couple of hours oscillating between 55-60 kt. Given 
the continued improvement in Genevieve's structure, the initial 
intensity is being raised to 60 kt for this advisory. Scatterometer 
data around 16 UTC also indicated that Genevieve's wind field has 
expanded, especially on its eastern side.
 
The tropical storm continues to march on to the west-northwest,
estimated at 300/13 kt. There is not much new to report with the
forecast track evolution, as a deep-layer ridge located over the
southwestern United States extending into the Pacific should
maintain Genevieve's west-northwest to northwest motion through the
entire forecast period. The track guidance this afternoon continues 
to be tightly clustered close to the previous forecast track, 
though the model mean is a little bit slower beyond 72 h. Thus, 
the latest NHC track forecast is very close to the previous one, but 
is a little slower, roughly splitting the difference between the 
reliable HFIP Corrected Consensus Approach (HCCA) and Google 
DeepMind ensemble mean (GDMI) aids. 
 
Genevieve appears poised to undergo a period of rapid 
intensification (RI), if it is not already underway. The last 
microwave pass over the tropical cyclone was several hours ago, so 
it is unclear if the small inner core has fully closed off on the 
western side. Regardless, environmental parameters remain quite 
favorable, and SHIPS RI guidance (both the GFS and ECMWF versions) 
show between a 74 to 100 percent chance of a 45 kt increase in 
intensity over the next 36 h, with DTOPS RI guidance in the 90 
percent range over the same time span. Thus, a 45 kt increase in 
intensity is forecast over the next 36 h, with Genevieve predicted 
to peak as a 115 kt category 4 hurricane in 48 h. This intensity 
forecast is in between the higher HCCA guidance and lower GDMI and 
HAFS-A/B solutions. After 48 h, the combination of inner-core 
fluctuations, a brief increase in northwesterly shear, and gradually 
decreasing sea surface temperatures (SST) could lead to gradual 
weakening. This weakening rate will likely increase when Genevieve 
crosses the 26 C SST isotherm between days 4 and 5.
 
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  25/2100Z 11.5N 105.7W   60 KT  70 MPH
 12H  26/0600Z 12.4N 107.5W   70 KT  80 MPH
 24H  26/1800Z 13.5N 109.5W   85 KT 100 MPH
 36H  27/0600Z 14.7N 111.3W  105 KT 120 MPH
 48H  27/1800Z 15.9N 112.9W  115 KT 130 MPH
 60H  28/0600Z 16.9N 114.3W  110 KT 125 MPH
 72H  28/1800Z 17.8N 115.8W  105 KT 120 MPH
 96H  29/1800Z 19.0N 119.0W   85 KT 100 MPH
120H  30/1800Z 20.5N 122.5W   65 KT  75 MPH
 
$$
Forecaster Papin

Tropical Storm Genevieve Wind Speed Probabilities Number 6

Issued at 2100 UTC SAT JUL 25 2026 000
FOPZ12 KNHC 252035
PWSEP2
                                                                    
TROPICAL STORM GENEVIEVE WIND SPEED PROBABILITIES NUMBER   6        
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP072026               
2100 UTC SAT JUL 25 2026                                            
                                                                    
AT 2100Z THE CENTER OF TROPICAL STORM GENEVIEVE WAS LOCATED NEAR    
LATITUDE 11.5 NORTH...LONGITUDE 105.7 WEST WITH MAXIMUM SUSTAINED   
WINDS NEAR 60 KTS...70 MPH...110 KM/H.                              
                                                                    
Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH)                  
   PACIFIC  DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME      
   HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 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           
        18Z SAT 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       18Z SAT 06Z SUN 18Z SUN 06Z MON 18Z MON 18Z TUE 18Z WED
PERIODS         TO      TO      TO      TO      TO      TO      TO  
             06Z SUN 18Z SUN 06Z MON 18Z MON 18Z TUE 18Z WED 18Z THU
                                                                    
FORECAST HOUR    (12)   (24)    (36)    (48)    (72)    (96)   (120)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
LOCATION       KT                                                   
                                                                    
15N 110W       34  X  35(35)  52(87)   X(87)   X(87)   X(87)   X(87)
15N 110W       50  X   1( 1)  34(35)   1(36)   X(36)   X(36)   X(36)
15N 110W       64  X   X( X)  16(16)   X(16)   X(16)   X(16)   X(16)
 
ISLA CLARION   34  X   X( X)   X( X)   4( 4)  73(77)   2(79)   1(80)
ISLA CLARION   50  X   X( X)   X( X)   X( X)  40(40)   3(43)   1(44)
ISLA CLARION   64  X   X( X)   X( X)   X( X)  23(23)   2(25)   X(25)
 
15N 115W       34  X   X( X)   X( X)   3( 3)   8(11)   X(11)   X(11)
15N 115W       50  X   X( X)   X( X)   X( X)   2( 2)   X( 2)   X( 2)
15N 115W       64  X   X( X)   X( X)   X( X)   2( 2)   X( 2)   X( 2)
 
20N 115W       34  X   X( X)   X( X)   X( X)  20(20)   8(28)   1(29)
20N 115W       50  X   X( X)   X( X)   X( X)   3( 3)   1( 4)   X( 4)
20N 115W       64  X   X( X)   X( X)   X( X)   1( 1)   1( 2)   X( 2)
 
15N 120W       34  X   X( X)   X( X)   X( X)   X( X)   2( 2)   1( 3)
 
20N 120W       34  X   X( X)   X( X)   X( X)   1( 1)  53(54)  18(72)
20N 120W       50  X   X( X)   X( X)   X( X)   X( X)  24(24)  17(41)
20N 120W       64  X   X( X)   X( X)   X( X)   X( X)  12(12)   8(20)
 
20N 125W       34  X   X( X)   X( X)   X( X)   X( X)   X( X)  16(16)
20N 125W       50  X   X( X)   X( X)   X( X)   X( X)   X( X)   4( 4)
20N 125W       64  X   X( X)   X( X)   X( X)   X( X)   X( X)   1( 1)
 
25N 125W       34  X   X( X)   X( X)   X( X)   X( X)   X( X)   3( 3)
 
$$                                                                  
FORECASTER PAPIN

Tropical Storm Genevieve Graphics



Tropical Storm Genevieve 34-Knot Wind Speed Probabilities

Wind Speed Probabilities last updated Sat, 25 Jul 2026 21:28:39 GMT