Atlantic/Gulf of Mexico/Caribbean
Atlantic Tropical Weather Outlook
552
ABNT20 KNHC 060516
TWOAT
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 AM EDT Mon Oct 6 2025
For the North Atlantic...Caribbean Sea and the Gulf of America:
Central Tropical Atlantic (AL95):
A broad area of low pressure associated with a low-latitude tropical
wave continues to produce a large area of disorganized cloudiness
and showers several hundred miles southwest of the Cabo Verde
Islands. Environmental conditions appear conducive for gradual
development of this system, and a tropical depression is likely to
form by midweek as it moves quickly across the central tropical
Atlantic, approaching the Leeward Islands by the latter part of this
week. Interests there should monitor the progress of this system.
* Formation chance through 48 hours...medium...50 percent.
* Formation chance through 7 days...high...70 percent.
$$
Forecaster Pasch
There are no tropical cyclones at this time.
No tropical cyclones as of Mon, 06 Oct 2025 11:04:30 GMT
Eastern Pacific
Eastern North Pacific Tropical Weather Outlook
000
ABPZ20 KNHC 061102
TWOEP
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Mon Oct 6 2025
For the eastern and central North Pacific east of 180 longitude:
Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Storm Octave, located in the eastern Pacific well to the
west-southwest of the southern tip of the Baja California Peninsula,
and on Hurricane Priscilla, located a couple hundred miles offshore
of southwestern Mexico.
South of Southern Mexico:
An area of low pressure is expected to form off the southern coast
of Mexico by midweek. Gradual development of this system is likely
thereafter, and a tropical depression could form during the latter
part of the week while moving slowly west-northwestward, near or
parallel to the coast of Mexico.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...60 percent.
$$
Forecaster Hagen
Summary for Hurricane Priscilla (EP1/EP162025)
...PRISCILLA CONTINUES TO STRENGTHEN... ...HEAVY RAINS AND GUSTY WINDS LIKELY OVER PARTS OF SOUTHWESTERN MEXICO TODAY... As of 2:00 AM MST Mon Oct 06 the center of Priscilla was located near 17.2, -107.3 with movement NNW at 5 mph. The minimum central pressure was 977 mb with maximum sustained winds of about 85 mph.
Hurricane Priscilla Public Advisory Number 7
Issued at 200 AM MST Mon Oct 06 2025 000 WTPZ31 KNHC 060841 TCPEP1 BULLETIN Hurricane Priscilla Advisory Number 7 NWS National Hurricane Center Miami FL EP162025 200 AM MST Mon Oct 06 2025 ...PRISCILLA CONTINUES TO STRENGTHEN... ...HEAVY RAINS AND GUSTY WINDS LIKELY OVER PARTS OF SOUTHWESTERN MEXICO TODAY... SUMMARY OF 200 AM MST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...17.2N 107.3W ABOUT 245 MI...395 KM SSW OF CABO CORRIENTES MEXICO ABOUT 430 MI...690 KM SSE OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H PRESENT MOVEMENT...NNW OR 340 DEGREES AT 5 MPH...7 KM/H MINIMUM CENTRAL PRESSURE...977 MB...28.85 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * Punta San Telmo to Punta Mita, Mexico A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, in this case during the next day or so. Interests in southern Baja California Sur should monitor the progress of Priscilla. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 200 AM MST (0900 UTC), the center of Hurricane Priscilla was located near latitude 17.2 North, longitude 107.3 West. Priscilla is moving toward the north-northwest near 5 mph (7 km/h). This general motion with a bend to the northwest at a slightly faster forward speed is expected over the next few days. On the forecast track, the center of the system is expected to move offshore of and parallel to the coast of southwestern Mexico and Baja California Sur through the early-to-middle part of this week. Maximum sustained winds have increased to near 85 mph (140 km/h) with higher gusts. Additional strengthening is forecast, and Priscilla is expected to become a category 2 hurricane, and could approach major hurricane status within the next couple of days before weakening likely commences by midweek. Hurricane-force winds extend outward up to 40 miles (65 km) from the center and tropical-storm-force winds extend outward up to 195 miles (315 km). The estimated minimum central pressure is 977 mb (28.85 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Priscilla can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDEP1 and WMO header WTPZ41 KNHC. WIND: Tropical storm conditions are possible within the watch area along the southwestern coast of Mexico today. RAINFALL: Outer bands from Priscilla will continue to bring heavy rain to portions of southwestern Mexico today. Across coastal portions of Michoacán and far western Guerrero, additional rainfall amounts of 2 to 4 inches are expected, with local amounts up to 6 inches. Across Colima, western Jalisco, and the rest of Guerrero along the coast, 1 to 3 inches of additional rainfall are expected. This rainfall will bring a risk of flash flooding, especially in areas of higher terrain. For a complete depiction of forecast rainfall and flash flooding associated with Priscilla, please see the National Weather Service Storm Total Rainfall Graphic, available at hurricanes.gov/graphics_ep1.shtml?rainqpf SURF: Swells generated by Priscilla have begun to affect portions of the coast of southwestern Mexico and will reach portions of the coast of west-central Mexico and the southern Baja California peninsula today. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 500 AM MST. Next complete advisory at 800 AM MST. $$ Forecaster Pasch
Hurricane Priscilla Forecast Advisory Number 7
Issued at 0900 UTC MON OCT 06 2025 000 WTPZ21 KNHC 060841 TCMEP1 HURRICANE PRISCILLA FORECAST/ADVISORY NUMBER 7 NWS NATIONAL HURRICANE CENTER MIAMI FL EP162025 0900 UTC MON OCT 06 2025 HURRICANE CENTER LOCATED NEAR 17.2N 107.3W AT 06/0900Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE NORTH-NORTHWEST OR 340 DEGREES AT 4 KT ESTIMATED MINIMUM CENTRAL PRESSURE 977 MB MAX SUSTAINED WINDS 75 KT WITH GUSTS TO 90 KT. 64 KT....... 0NE 35SE 0SW 0NW. 50 KT....... 40NE 50SE 40SW 0NW. 34 KT.......170NE 140SE 110SW 120NW. 4 M SEAS....210NE 330SE 210SW 180NW. 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 17.2N 107.3W AT 06/0900Z AT 06/0600Z CENTER WAS LOCATED NEAR 17.0N 107.2W FORECAST VALID 06/1800Z 17.9N 107.9W MAX WIND 80 KT...GUSTS 100 KT. 64 KT... 20NE 25SE 20SW 15NW. 50 KT... 50NE 55SE 45SW 30NW. 34 KT...170NE 140SE 120SW 130NW. FORECAST VALID 07/0600Z 18.8N 109.0W MAX WIND 85 KT...GUSTS 105 KT. 64 KT... 25NE 20SE 15SW 15NW. 50 KT... 60NE 60SE 45SW 35NW. 34 KT...160NE 130SE 120SW 130NW. FORECAST VALID 07/1800Z 19.7N 110.2W MAX WIND 90 KT...GUSTS 110 KT. 64 KT... 35NE 30SE 20SW 25NW. 50 KT... 60NE 60SE 50SW 40NW. 34 KT...150NE 130SE 110SW 120NW. FORECAST VALID 08/0600Z 20.7N 111.7W MAX WIND 95 KT...GUSTS 115 KT. 64 KT... 40NE 35SE 30SW 25NW. 50 KT... 60NE 60SE 55SW 50NW. 34 KT...130NE 120SE 110SW 110NW. FORECAST VALID 08/1800Z 21.7N 113.0W MAX WIND 85 KT...GUSTS 105 KT. 64 KT... 40NE 35SE 30SW 30NW. 50 KT... 60NE 60SE 50SW 50NW. 34 KT...120NE 110SE 100SW 110NW. FORECAST VALID 09/0600Z 22.8N 114.2W MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 30NE 30SE 20SW 25NW. 50 KT... 60NE 50SE 50SW 50NW. 34 KT...110NE 110SE 90SW 100NW. 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 10/0600Z 25.3N 116.0W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 40NE 30SE 30SW 40NW. 34 KT... 80NE 70SE 70SW 80NW. OUTLOOK VALID 11/0600Z 26.5N 116.4W...POST-TROPICAL MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 70NE 0SE 0SW 70NW. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.2N 107.3W INTERMEDIATE PUBLIC ADVISORY...WTNT31 KNHC/MIATCPEP1...AT 06/1200Z NEXT ADVISORY AT 06/1500Z $$ FORECASTER PASCH
Hurricane Priscilla Forecast Discussion Number 7
Issued at 200 AM MST Mon Oct 06 2025 000 WTPZ41 KNHC 060842 TCDEP1 Hurricane Priscilla Discussion Number 7 NWS National Hurricane Center Miami FL EP162025 200 AM MST Mon Oct 06 2025 Priscilla is gradually becoming better organized on satellite images over the past few hours. There is a rather impressive-looking convective band wrapping around the western, southern and eastern portions of the circulation, with cloud tops to -80 deg C or colder in the band. Cirrus cloud motions indicate that the upper-level outflow pattern is expanding at this time. The advisory intensity estimate is set at 75 kt based on a blend of subjective and objective intensity estimates from TAFB, SAB, and UW-CIMSS. The hurricane is moving a little west of north or 340/5 kt. A more northwestward track with some acceleration is expected by later today as mid-level ridging becomes better established over Mexico. There continues to be a fair amount of spread in the model guidance tracks, with the GFS on the southwestern side of the guidance envelope and the ECMWF and corrected consensus, HCCA, near the northeastern side. The official forecast is nudged ever so slightly to the right of the previous forecast based mainly on Priscilla's more northward motion over the past several hours. The NHC forecast is close to the latest ECMWF and Google DeepMind ensemble solutions. Vertical wind shear appears to be abating somewhat over the system. Priscilla will be moving over very warm waters for the next couple of days and the environment looks to be quite conducive for strengthening. As noted earlier, if Priscilla develops a tighter inner core, rapid intensification will become more likely. The official intensity forecast shows significant additional strengthening over the next 48 hours and is in line with the latest corrected consensus intensity model guidance. Steady weakening is likely to commence in 2-3 days due to the tropical cyclone crossing a sharp SST gradient and heading over cooler waters. KEY MESSAGES: 1. Tropical storm conditions are possible along portions of the coast of southwestern Mexico within the watch area today. Interests in the southern portion of Baja California Sur should also monitor the progress of Priscilla. 2. Heavy rainfall associated with Priscilla will impact coastal sections of southwestern Mexico today, which could result in flash flooding, particularly in areas of higher terrain. 3. Swells generated by Priscilla are affecting portions of the coast of southwestern Mexico and will reach the coasts of west-central Mexico and the southern Baja California peninsula today. These swells are likely to cause life-threatening surf and rip current conditions. FORECAST POSITIONS AND MAX WINDS INIT 06/0900Z 17.2N 107.3W 75 KT 85 MPH 12H 06/1800Z 17.9N 107.9W 80 KT 90 MPH 24H 07/0600Z 18.8N 109.0W 85 KT 100 MPH 36H 07/1800Z 19.7N 110.2W 90 KT 105 MPH 48H 08/0600Z 20.7N 111.7W 95 KT 110 MPH 60H 08/1800Z 21.7N 113.0W 85 KT 100 MPH 72H 09/0600Z 22.8N 114.2W 70 KT 80 MPH 96H 10/0600Z 25.3N 116.0W 50 KT 60 MPH 120H 11/0600Z 26.5N 116.4W 35 KT 40 MPH...POST-TROPICAL $$ Forecaster Pasch
Hurricane Priscilla Wind Speed Probabilities Number 7
Issued at 0900 UTC MON OCT 06 2025 000 FOPZ11 KNHC 060841 PWSEP1 HURRICANE PRISCILLA WIND SPEED PROBABILITIES NUMBER 7 NWS NATIONAL HURRICANE CENTER MIAMI FL EP162025 0900 UTC MON OCT 06 2025 AT 0900Z THE CENTER OF HURRICANE PRISCILLA WAS LOCATED NEAR LATITUDE 17.2 NORTH...LONGITUDE 107.3 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 75 KTS...85 MPH...140 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 06Z MON 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 MON 18Z MON 06Z TUE 18Z TUE 06Z WED 06Z THU 06Z FRI PERIODS TO TO TO TO TO TO TO 18Z MON 06Z TUE 18Z TUE 06Z WED 06Z THU 06Z FRI 06Z SAT FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT IS GUADALUPE 34 X X( X) X( X) X( X) X( X) 2( 2) 3( 5) PUNTA EUGENIA 34 X X( X) X( X) X( X) 2( 2) 8(10) 2(12) P ABREOJOS 34 X X( X) X( X) X( X) 7( 7) 7(14) 1(15) CABO SAN LUCAS 34 X 5( 5) 9(14) 16(30) 7(37) X(37) X(37) CABO SAN LUCAS 50 X X( X) 1( 1) 2( 3) 1( 4) X( 4) X( 4) SAN JOSE CABO 34 X 4( 4) 8(12) 12(24) 6(30) X(30) X(30) LA PAZ 34 X X( X) 4( 4) 7(11) 8(19) 2(21) X(21) LORETO 34 X X( X) X( X) 2( 2) 6( 8) 3(11) X(11) ISLAS MARIAS 34 4 6(10) 4(14) 2(16) X(16) X(16) X(16) MAZATLAN 34 X 2( 2) 1( 3) 2( 5) X( 5) X( 5) X( 5) SAN BLAS 34 3 3( 6) 2( 8) 1( 9) X( 9) X( 9) X( 9) P VALLARTA 34 2 2( 4) 1( 5) X( 5) X( 5) X( 5) X( 5) 15N 105W 34 4 1( 5) X( 5) X( 5) X( 5) X( 5) X( 5) BARRA NAVIDAD 34 2 2( 4) 1( 5) X( 5) X( 5) X( 5) X( 5) MANZANILLO 34 5 3( 8) 1( 9) X( 9) X( 9) X( 9) X( 9) 15N 110W 34 4 3( 7) 2( 9) X( 9) X( 9) X( 9) X( 9) 20N 110W 34 5 54(59) 36(95) 2(97) 1(98) X(98) X(98) 20N 110W 50 X 4( 4) 58(62) 16(78) 1(79) X(79) X(79) 20N 110W 64 X 1( 1) 29(30) 13(43) 1(44) X(44) X(44) ISLA SOCORRO 34 4 33(37) 34(71) 5(76) 1(77) X(77) X(77) ISLA SOCORRO 50 X 2( 2) 15(17) 6(23) 1(24) X(24) X(24) ISLA SOCORRO 64 X X( X) 4( 4) 3( 7) X( 7) X( 7) X( 7) ISLA CLARION 34 X X( X) 4( 4) 4( 8) 5(13) X(13) X(13) 20N 115W 34 X X( X) 3( 3) 7(10) 15(25) 1(26) X(26) 25N 115W 34 X X( X) X( X) 2( 2) 25(27) 25(52) X(52) 25N 115W 50 X X( X) X( X) X( X) 3( 3) 11(14) 1(15) 25N 115W 64 X X( X) X( X) X( X) 1( 1) 3( 4) X( 4) 25N 120W 34 X X( X) X( X) X( X) X( X) 3( 3) 1( 4) $$ FORECASTER PASCH
Hurricane Priscilla Graphics
5-Day Uncertainty Track last updated Mon, 06 Oct 2025 08:44:17 GMT
Wind Speed Probabilities last updated Mon, 06 Oct 2025 09:27:00 GMT
Summary for Tropical Storm Octave (EP5/EP152025)
...OCTAVE SLIGHTLY WEAKENS WHILE HEADING EASTWARD... As of 2:00 AM PDT Mon Oct 06 the center of Octave was located near 16.3, -122.2 with movement E at 7 mph. The minimum central pressure was 993 mb with maximum sustained winds of about 70 mph.
Tropical Storm Octave Public Advisory Number 25
Issued at 200 AM PDT Mon Oct 06 2025 000 WTPZ35 KNHC 060840 TCPEP5 BULLETIN Tropical Storm Octave Advisory Number 25 NWS National Hurricane Center Miami FL EP152025 200 AM PDT Mon Oct 06 2025 ...OCTAVE SLIGHTLY WEAKENS WHILE HEADING EASTWARD... SUMMARY OF 200 AM PDT...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...16.3N 122.2W ABOUT 920 MI...1480 KM WSW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...E OR 90 DEGREES AT 7 MPH...11 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 200 AM PDT (0900 UTC), the center of Tropical Storm Octave was located near latitude 16.3 North, longitude 122.2 West. Octave is moving toward the east near 7 mph (11 km/h). A turn toward the east-southeast is expected later today, continuing into Wednesday, followed by a turn toward the northeast and an acceleration by Thursday. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. A steady weakening trend is expected to continue through midweek. Tropical-storm-force winds extend outward up to 60 miles (95 km) from the center. The estimated minimum central pressure is 993 mb (29.33 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 800 AM PDT. $$ Forecaster Gibbs (CPHC)
Tropical Storm Octave Forecast Advisory Number 25
Issued at 0900 UTC MON OCT 06 2025 000 WTPZ25 KNHC 060839 TCMEP5 TROPICAL STORM OCTAVE FORECAST/ADVISORY NUMBER 25 NWS NATIONAL HURRICANE CENTER MIAMI FL EP152025 0900 UTC MON OCT 06 2025 TROPICAL STORM CENTER LOCATED NEAR 16.3N 122.2W AT 06/0900Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE EAST OR 90 DEGREES AT 6 KT ESTIMATED MINIMUM CENTRAL PRESSURE 993 MB MAX SUSTAINED WINDS 60 KT WITH GUSTS TO 75 KT. 50 KT....... 20NE 20SE 10SW 20NW. 34 KT....... 50NE 40SE 30SW 50NW. 4 M SEAS.... 60NE 75SE 75SW 75NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 16.3N 122.2W AT 06/0900Z AT 06/0600Z CENTER WAS LOCATED NEAR 16.3N 122.5W FORECAST VALID 06/1800Z 16.3N 121.3W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 20NE 20SE 10SW 20NW. 34 KT... 50NE 40SE 30SW 50NW. FORECAST VALID 07/0600Z 16.0N 120.2W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 10NE 20SE 15SW 0NW. 34 KT... 40NE 40SE 30SW 40NW. FORECAST VALID 07/1800Z 15.6N 119.0W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 40NE 40SE 40SW 30NW. FORECAST VALID 08/0600Z 15.5N 117.7W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 30NE 40SE 40SW 30NW. FORECAST VALID 08/1800Z 15.8N 116.1W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 30NE 40SE 40SW 30NW. FORECAST VALID 09/0600Z 16.7N 114.0W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 10NE 40SE 30SW 10NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 100 NM ON DAY 4 AND 125 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 10/0600Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.3N 122.2W NEXT ADVISORY AT 06/1500Z $$ FORECASTER GIBBS (CPHC)
Tropical Storm Octave Forecast Discussion Number 25
Issued at 200 AM PDT Mon Oct 06 2025 642 WTPZ45 KNHC 060843 TCDEP5 Tropical Storm Octave Discussion Number 25 NWS National Hurricane Center Miami FL EP152025 200 AM PDT Mon Oct 06 2025 Satellite imagery indicates that Octave has begun to weaken over the past several hours, with its central dense overcast diminishing in size and its cloud tops warming. This trend, combined with a 0602 UTC Metop-C ASCAT pass showing peak surface winds near 50 kt, supports setting the initial intensity at 60 kt, making Octave a tropical storm. The initial motion is eastward at around 6 kt, and this general motion is expected to continue through much of the day today. A gradual bend toward the east-southeast is forecast tonight through Wednesday in response to a mid- to upper-level trough extending southwestward off the U.S. West Coast and a much larger Hurricane Priscilla tracking northwestward well to the east. By late Wednesday, Octave is expected to turn toward the northeast as it begins to interact with and eventually become absorbed by Priscilla. There remains a decent amount of cross- and along-track spread among the guidance during the midweek period, largely due to uncertainties associated with this binary interaction. The new NHC forecast is very similar to the previous advisory and closely follows the consensus aid. Global models suggest Octave has likely peaked in intensity, which aligns with recent trends. Drier mid-level air entraining into the circulation and gradually increasing vertical wind shear will support continued weakening during the next couple of days. Thereafter, stronger shear combined with interaction with Priscilla should induce additional weakening. Octave is forecast to open up into a trough and be absorbed by Priscilla by the end of the forecast period. The intensity forecast remains close to the previous NHC advisory and near the middle portion of the guidance envelope. FORECAST POSITIONS AND MAX WINDS INIT 06/0900Z 16.3N 122.2W 60 KT 70 MPH 12H 06/1800Z 16.3N 121.3W 55 KT 65 MPH 24H 07/0600Z 16.0N 120.2W 50 KT 60 MPH 36H 07/1800Z 15.6N 119.0W 45 KT 50 MPH 48H 08/0600Z 15.5N 117.7W 45 KT 50 MPH 60H 08/1800Z 15.8N 116.1W 40 KT 45 MPH 72H 09/0600Z 16.7N 114.0W 35 KT 40 MPH 96H 10/0600Z...DISSIPATED $$ Forecaster Gibbs (CPHC)
Tropical Storm Octave Wind Speed Probabilities Number 25
Issued at 0900 UTC MON OCT 06 2025 000 FOPZ15 KNHC 060840 PWSEP5 TROPICAL STORM OCTAVE WIND SPEED PROBABILITIES NUMBER 25 NWS NATIONAL HURRICANE CENTER MIAMI FL EP152025 0900 UTC MON OCT 06 2025 AT 0900Z THE CENTER OF TROPICAL STORM OCTAVE WAS LOCATED NEAR LATITUDE 16.3 NORTH...LONGITUDE 122.2 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 06Z MON 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 MON 18Z MON 06Z TUE 18Z TUE 06Z WED 06Z THU 06Z FRI PERIODS TO TO TO TO TO TO TO 18Z MON 06Z TUE 18Z TUE 06Z WED 06Z THU 06Z FRI 06Z SAT FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT ISLA CLARION 34 X X( X) X( X) 1( 1) 3( 4) X( 4) X( 4) 15N 115W 34 X X( X) 1( 1) 2( 3) 18(21) X(21) X(21) 15N 115W 50 X X( X) X( X) X( X) 3( 3) X( 3) X( 3) 15N 120W 34 2 25(27) 13(40) 2(42) X(42) X(42) X(42) 15N 120W 50 X 3( 3) 3( 6) X( 6) 1( 7) X( 7) X( 7) 15N 120W 64 X 1( 1) X( 1) X( 1) X( 1) X( 1) X( 1) $$ FORECASTER GIBBS (CPHC)
Tropical Storm Octave Graphics
5-Day Uncertainty Track last updated Mon, 06 Oct 2025 08:44:55 GMT
Wind Speed Probabilities last updated Mon, 06 Oct 2025 09:21:43 GMT