Tropical Storm Henriette Public Advisory Number 9

1 month 1 week ago
Issued at 1100 PM HST Tue Aug 05 2025 000 WTPZ33 KNHC 060853 TCPEP3 BULLETIN Tropical Storm Henriette Advisory Number 9 NWS National Hurricane Center Miami FL EP082025 1100 PM HST Tue Aug 05 2025 ...HENRIETTE MOVING WEST-NORTHWESTWARD FAR TO THE EAST OF HAWAII... SUMMARY OF 1100 PM HST...0900 UTC...INFORMATION ----------------------------------------------- LOCATION...17.8N 128.2W ABOUT 1760 MI...2835 KM E OF HILO HAWAII MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 15 MPH...24 KM/H MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM HST (0900 UTC), the center of Tropical Storm Henriette was located near latitude 17.8 North, longitude 128.2 West. Henriette is moving toward the west near 15 mph (24 km/h). This general motion is expected to continue for the next few days. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Some slight weakening is forecast during the next 24 hours, followed by little change in strength during the next couple of days. Tropical-storm-force winds extend outward up to 80 miles (130 km) from the center. The estimated minimum central pressure is 1003 mb (29.62 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 500 AM HST. $$ Forecaster Jelsema (CPHC)
NHC Webmaster

Tropical Storm Henriette Forecast Advisory Number 9

1 month 1 week ago
Issued at 0900 UTC WED AUG 06 2025 647 WTPZ23 KNHC 060852 TCMEP3 TROPICAL STORM HENRIETTE FORECAST/ADVISORY NUMBER 9 NWS NATIONAL HURRICANE CENTER MIAMI FL EP082025 0900 UTC WED AUG 06 2025 TROPICAL STORM CENTER LOCATED NEAR 17.8N 128.2W AT 06/0900Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT 13 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT. 34 KT....... 70NE 40SE 40SW 70NW. 4 M SEAS....120NE 45SE 60SW 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 17.8N 128.2W AT 06/0900Z AT 06/0600Z CENTER WAS LOCATED NEAR 17.7N 127.4W FORECAST VALID 06/1800Z 18.1N 130.4W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 70NE 40SE 40SW 70NW. FORECAST VALID 07/0600Z 18.4N 133.4W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 30SE 30SW 60NW. FORECAST VALID 07/1800Z 18.7N 136.4W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 30SE 30SW 60NW. FORECAST VALID 08/0600Z 19.2N 139.4W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 30SE 30SW 60NW. FORECAST VALID 08/1800Z 19.9N 142.3W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 30SE 30SW 60NW. FORECAST VALID 09/0600Z 20.9N 145.2W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 30SE 30SW 60NW. 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 23.3N 149.9W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 40SE 30SW 50NW. OUTLOOK VALID 11/0600Z 26.1N 154.1W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 25NE 0SE 0SW 20NW. 34 KT... 60NE 50SE 40SW 60NW. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.8N 128.2W NEXT ADVISORY AT 06/1500Z $$ FORECASTER JELSEMA (CPHC)
NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 month 1 week ago
658
ABPZ20 KNHC 060520
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Tue Aug 5 2025

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

Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Storm Henriette, located well east of the Hawaiian Islands.
Henriette is expected to move into the Central Pacific basin
Thursday night.

South of Southern Mexico (EP91):
Showers and thunderstorms associated with an area of low pressure
located a few hundred miles south of the Gulf of Tehuantepec
continue to show signs of organization. Environmental conditions
are conducive for development of this system, and a tropical
depression is expected to form during the next day or two while the
low moves west-northwestward around 15 mph. For additional
information, including gale warnings, please see High Seas Forecasts
issued by the National Weather Service.
* Formation chance through 48 hours...high...90 percent.
* Formation chance through 7 days...high...90 percent.

&&

High Seas Forecasts issued by the National Weather Service
can be found under AWIPS header NFDHSFEPI, WMO header FZPN02
KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php

$$
Forecaster Jelsema
NHC Webmaster

Tropical Storm Henriette Forecast Discussion Number 8

1 month 1 week ago
Issued at 500 PM HST Tue Aug 05 2025 565 WTPZ43 KNHC 060244 TCDEP3 Tropical Storm Henriette Discussion Number 8 NWS National Hurricane Center Miami FL EP082025 500 PM HST Tue Aug 05 2025 The satellite presentation of Henriette had remained rather ragged for several hours since the previous advisory, however, a new burst of deep convection has now developed just to the west of the low-level center of the cyclone. The latest subjective Dvorak current intensity estimates from TAFB and SAB were 3.0/45 kt and 2.5/35 kt respectively. Meanwhile, the objective estimates from UW-CIMSS have ranged from 34 to 47 kt during the past several hours. Earlier today, a 05/1815Z Metop-C ASCAT pass showed several 45 knot wind barbs to the north of the low level center and a 05/2133Z AMRS2 pass revealed a nice inner core structure of the cyclone. Based on these data, the initial intensity for this advisory has been held at 45 kt. The cyclone is moving west-northwest, or 290 degrees, at 14 kt. A slight turn toward the west is expected tonight, with this motion then continuing for the next several days as Henriette is steered by a strengthening subtropical ridge to the north. By 72 hours, a turn toward the west-northwest is anticipated as an amplifying longwave trough northwest of Hawaii erodes the western extent of the subtropical ridge steering the cyclone. The official track forecast closely follows a blend of the latest consensus guidance, and is very close to the previous advisory. Henriette will remain in a low shear environment during the next several days, while sea surface temperatures gradually cool to near or slightly below 24C and the mid-level moisture decreases below 50 percent. Despite the cooling water and drying mid-levels, the large circulation of the system and the well-established inner core should keep Henriette rather resilient in the very low shear environment during the next several days. The intensity forecast only calls for slight weakening during this time followed by little change in strength. By late in the forecast period, sea surface temperatures will begin to increase, and if the cyclone manages to survive the trip over the cooler water as suggested by the GFS and ECMWF models, some re-intensification is possible and the official forecast reflects this. The intensity forecast is near the middle of the intensity guidance envelope and most closely aligned with the IVCN intensity aid. FORECAST POSITIONS AND MAX WINDS INIT 06/0300Z 17.6N 126.9W 45 KT 50 MPH 12H 06/1200Z 17.9N 129.1W 45 KT 50 MPH 24H 07/0000Z 18.3N 132.1W 45 KT 50 MPH 36H 07/1200Z 18.6N 135.1W 40 KT 45 MPH 48H 08/0000Z 19.0N 138.1W 40 KT 45 MPH 60H 08/1200Z 19.6N 141.0W 40 KT 45 MPH 72H 09/0000Z 20.5N 143.8W 40 KT 45 MPH 96H 10/0000Z 22.8N 148.9W 40 KT 45 MPH 120H 11/0000Z 25.1N 153.2W 45 KT 50 MPH $$ Forecaster Jelsema (CPHC)
NHC Webmaster

Tropical Storm Henriette Public Advisory Number 8

1 month 1 week ago
Issued at 500 PM HST Tue Aug 05 2025 695 WTPZ33 KNHC 060243 TCPEP3 BULLETIN Tropical Storm Henriette Advisory Number 8 NWS National Hurricane Center Miami FL EP082025 500 PM HST Tue Aug 05 2025 ...HENRIETTE CONTINUES WEST-NORTHWESTWARD FAR TO THE EAST OF HAWAII... SUMMARY OF 500 PM HST...0300 UTC...INFORMATION ---------------------------------------------- LOCATION...17.6N 126.9W ABOUT 1850 MI...2975 KM E OF HILO HAWAII MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM HST (0300 UTC), the center of Tropical Storm Henriette was located near latitude 17.6 North, longitude 126.9 West. Henriette is moving toward the west-northwest near 16 mph (26 km/h). A slight turn toward the west at a similar forward speed is expected tonight, with this general motion then expected to continue for the next few days. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Some slight weakening is forecast during the next couple of days. Tropical-storm-force winds extend outward up to 80 miles (130 km) from the center. The estimated minimum central pressure is 1003 mb (29.62 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 1100 PM HST. $$ Forecaster Jelsema (CPHC)
NHC Webmaster

Tropical Storm Henriette Wind Speed Probabilities Number 8

1 month 1 week ago
Issued at 0300 UTC WED AUG 06 2025 556 FOPZ13 KNHC 060243 PWSEP3 TROPICAL STORM HENRIETTE WIND SPEED PROBABILITIES NUMBER 8 NWS NATIONAL HURRICANE CENTER MIAMI FL EP082025 0300 UTC WED AUG 06 2025 AT 0300Z THE CENTER OF TROPICAL STORM HENRIETTE WAS LOCATED NEAR LATITUDE 17.6 NORTH...LONGITUDE 126.9 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 45 KTS...50 MPH...85 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 00Z WED 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 00Z WED 12Z WED 00Z THU 12Z THU 00Z FRI 00Z SAT 00Z SUN PERIODS TO TO TO TO TO TO TO 12Z WED 00Z THU 12Z THU 00Z FRI 00Z SAT 00Z SUN 00Z MON FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT 20N 130W 34 3 4( 7) 1( 8) X( 8) X( 8) X( 8) X( 8) 20N 135W 34 X 2( 2) 12(14) 3(17) X(17) X(17) X(17) 20N 140W 34 X X( X) 1( 1) 7( 8) 26(34) X(34) X(34) 20N 140W 50 X X( X) X( X) 1( 1) 6( 7) X( 7) X( 7) 20N 140W 64 X X( X) X( X) X( X) 1( 1) X( 1) X( 1) 20N 145W 34 X X( X) X( X) X( X) 9( 9) 6(15) X(15) 20N 145W 50 X X( X) X( X) X( X) 1( 1) 2( 3) X( 3) 20N 150W 34 X X( X) X( X) X( X) X( X) 3( 3) X( 3) 25N 150W 34 X X( X) X( X) X( X) X( X) 6( 6) 10(16) 25N 150W 50 X X( X) X( X) X( X) X( X) X( X) 3( 3) $$ FORECASTER JELSEMA (CPHC)
NHC Webmaster

Tropical Storm Henriette Forecast Advisory Number 8

1 month 1 week ago
Issued at 0300 UTC WED AUG 06 2025 000 WTPZ23 KNHC 060242 TCMEP3 TROPICAL STORM HENRIETTE FORECAST/ADVISORY NUMBER 8 NWS NATIONAL HURRICANE CENTER MIAMI FL EP082025 0300 UTC WED AUG 06 2025 TROPICAL STORM CENTER LOCATED NEAR 17.6N 126.9W AT 06/0300Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 14 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT. 34 KT....... 70NE 40SE 40SW 70NW. 4 M SEAS....150NE 60SE 75SW 120NW. 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 17.6N 126.9W AT 06/0300Z AT 06/0000Z CENTER WAS LOCATED NEAR 17.4N 126.2W FORECAST VALID 06/1200Z 17.9N 129.1W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 70NE 40SE 40SW 70NW. FORECAST VALID 07/0000Z 18.3N 132.1W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 70NE 40SE 40SW 60NW. FORECAST VALID 07/1200Z 18.6N 135.1W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 30SE 30SW 60NW. FORECAST VALID 08/0000Z 19.0N 138.1W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 30SE 30SW 60NW. FORECAST VALID 08/1200Z 19.6N 141.0W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 30SE 30SW 60NW. FORECAST VALID 09/0000Z 20.5N 143.8W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 30SE 30SW 50NW. 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 10/0000Z 22.8N 148.9W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 40SE 30SW 50NW. OUTLOOK VALID 11/0000Z 25.1N 153.2W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 60NE 50SE 40SW 50NW. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.6N 126.9W NEXT ADVISORY AT 06/0900Z $$ FORECASTER JELSEMA (CPHC)
NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 month 1 week ago
570
ABPZ20 KNHC 052320
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Tue Aug 5 2025

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

Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Storm Henriette, located well west-southwest of the Baja California
Peninsula. Henriette is expected to move into the Central Pacific
basin Thursday night or early Friday.

South of Southern Mexico (EP91):
Showers and thunderstorms associated with an area of low pressure
located a few hundred miles south of the Gulf of Tehuantepec are
showing signs of organization. Environmental conditions are
conducive for development of this system, and a tropical depression
is likely to form during the next couple of days while it moves
west-northwestward around 15 mph.
* Formation chance through 48 hours...high...80 percent.
* Formation chance through 7 days...high...90 percent.

$$
Forecaster Jelsema
NHC Webmaster

Tropical Storm Henriette Forecast Discussion Number 7

1 month 1 week ago
Issued at 1100 AM HST Tue Aug 05 2025 000 WTPZ43 KNHC 052041 TCDEP3 Tropical Storm Henriette Discussion Number 7 NWS National Hurricane Center Miami FL EP082025 1100 AM HST Tue Aug 05 2025 This morning's satellite presentation consists of a convective curved band on the west side of the cyclone and a cluster of strong thunderstorms with cold cloud tops of -70 Celsius just to the west of Henriette's surface circulation center. The initial intensity is held at 45 kt for this advisory and is based on a blend of the TAFB and SAB subjective and CIMSS objective intensity estimates. Little change in strength is expected during the next couple of days, although 5-kt fluctuations are possible, while Henriette moves over slightly cooler water and through an increasingly inhibiting thermodynamic environment. Toward the end of the week, the thermodynamic environment is expected to become even more hostile while Henriette moves over the subtropical central Pacific waters. Therefore, some weakening of the cyclone is forecast through day 5. The official intensity forecast is based on the IVCN intensity consensus model and the Decay-SHIPS statistical aid. Henriette's initial motion is estimated to be west-northwestward, or 295/13 kt, and a west-northwestward or westward motion should continue through day 4 while the cyclone is steered by a strong mid-level ridge stretching across the subtropical Central Pacific. Over the weekend, Henriette is expected to turn gradually northwestward in response to an amplifying mid- to upper-tropospheric trough approaching the Hawaiian Islands from the Central North Pacific. The NHC track forecast is based on the various consensus aids and is basically an update of the previous advisory. FORECAST POSITIONS AND MAX WINDS INIT 05/2100Z 17.0N 125.6W 45 KT 50 MPH 12H 06/0600Z 17.4N 127.7W 45 KT 50 MPH 24H 06/1800Z 17.9N 130.4W 45 KT 50 MPH 36H 07/0600Z 18.4N 133.3W 40 KT 45 MPH 48H 07/1800Z 18.8N 136.3W 40 KT 45 MPH 60H 08/0600Z 19.4N 139.4W 40 KT 45 MPH 72H 08/1800Z 20.1N 142.2W 40 KT 45 MPH 96H 09/1800Z 22.3N 147.4W 35 KT 40 MPH 120H 10/1800Z 24.5N 152.0W 35 KT 40 MPH $$ Forecaster Roberts
NHC Webmaster

Tropical Storm Henriette Wind Speed Probabilities Number 7

1 month 1 week ago
Issued at 2100 UTC TUE AUG 05 2025 628 FOPZ13 KNHC 052040 PWSEP3 TROPICAL STORM HENRIETTE WIND SPEED PROBABILITIES NUMBER 7 NWS NATIONAL HURRICANE CENTER MIAMI FL EP082025 2100 UTC TUE AUG 05 2025 AT 2100Z THE CENTER OF TROPICAL STORM HENRIETTE WAS LOCATED NEAR LATITUDE 17.0 NORTH...LONGITUDE 125.6 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 45 KTS...50 MPH...85 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 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 18Z TUE 06Z WED 18Z WED 06Z THU 18Z THU 18Z FRI 18Z SAT PERIODS TO TO TO TO TO TO TO 06Z WED 18Z WED 06Z THU 18Z THU 18Z FRI 18Z SAT 18Z SUN FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT 20N 130W 34 X 5( 5) 1( 6) X( 6) X( 6) X( 6) X( 6) 20N 135W 34 X 1( 1) 2( 3) 14(17) 1(18) X(18) X(18) 20N 135W 50 X X( X) X( X) 3( 3) X( 3) X( 3) X( 3) 20N 140W 34 X X( X) X( X) 1( 1) 32(33) 1(34) X(34) 20N 140W 50 X X( X) X( X) X( X) 7( 7) X( 7) X( 7) 20N 140W 64 X X( X) X( X) X( X) 2( 2) X( 2) X( 2) 20N 145W 34 X X( X) X( X) X( X) 3( 3) 9(12) X(12) 25N 150W 34 X X( X) X( X) X( X) X( X) 1( 1) 9(10) $$ FORECASTER ROBERTS
NHC Webmaster

Tropical Storm Henriette Public Advisory Number 7

1 month 1 week ago
Issued at 1100 AM HST Tue Aug 05 2025 000 WTPZ33 KNHC 052040 TCPEP3 BULLETIN Tropical Storm Henriette Advisory Number 7 NWS National Hurricane Center Miami FL EP082025 1100 AM HST Tue Aug 05 2025 ...HENRIETTE HEADING WEST-NORTHWESTWARD OVER THE CENTRAL EAST PACIFIC... SUMMARY OF 1100 AM HST...2100 UTC...INFORMATION ----------------------------------------------- LOCATION...17.0N 125.6W ABOUT 1095 MI...1765 KM WSW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM HST (2100 UTC), the center of Tropical Storm Henriette was located near latitude 17.0 North, longitude 125.6 West. Henriette is moving toward the west-northwest near 16 mph (26 km/h), and this general motion is expected to continue during the next few days. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Some slight weakening is expected later this week. Tropical-storm-force winds extend outward up to 70 miles (110 km) from the center. The estimated minimum central pressure is 1003 mb (29.62 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 500 PM HST. $$ Forecaster Roberts
NHC Webmaster

Tropical Storm Henriette Forecast Advisory Number 7

1 month 1 week ago
Issued at 2100 UTC TUE AUG 05 2025 697 WTPZ23 KNHC 052040 TCMEP3 TROPICAL STORM HENRIETTE FORECAST/ADVISORY NUMBER 7 NWS NATIONAL HURRICANE CENTER MIAMI FL EP082025 2100 UTC TUE AUG 05 2025 TROPICAL STORM CENTER LOCATED NEAR 17.0N 125.6W AT 05/2100Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 295 DEGREES AT 14 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT. 34 KT....... 60NE 50SE 50SW 60NW. 4 M SEAS....150NE 60SE 75SW 120NW. 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 17.0N 125.6W AT 05/2100Z AT 05/1800Z CENTER WAS LOCATED NEAR 16.8N 124.9W FORECAST VALID 06/0600Z 17.4N 127.7W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 60NE 50SE 50SW 60NW. FORECAST VALID 06/1800Z 17.9N 130.4W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 60NE 50SE 50SW 60NW. FORECAST VALID 07/0600Z 18.4N 133.3W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 65NE 40SE 40SW 60NW. FORECAST VALID 07/1800Z 18.8N 136.3W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 40SE 40SW 60NW. FORECAST VALID 08/0600Z 19.4N 139.4W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 40SE 40SW 60NW. FORECAST VALID 08/1800Z 20.1N 142.2W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 40SE 30SW 50NW. 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 09/1800Z 22.3N 147.4W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 60NE 40SE 30SW 40NW. OUTLOOK VALID 10/1800Z 24.5N 152.0W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 60NE 40SE 30SW 40NW. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.0N 125.6W NEXT ADVISORY AT 06/0300Z $$ FORECASTER ROBERTS
NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 month 1 week ago
000
ABPZ20 KNHC 051725
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Tue Aug 5 2025

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

Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Storm Henriette, located well west-southwest of the Baja California
Peninsula. Henriette is expected to move into the Central Pacific
basin Thursday night or Friday morning.

South of Southern Mexico:
Showers and thunderstorms associated with an area of low pressure
located a couple hundred miles offshore of the coast of Central
America have become a little better organized. Environmental
conditions are conducive for development of this system, and a
tropical depression is likely to form during the next couple of days
while it moves west-northwestward around 15 mph.
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 7 days...high...90 percent.

$$
Forecaster Roberts
NHC Webmaster
Checked
5 years 11 months ago
National Hurricane Center (NHC) Pacific Map
Active tropical cyclones in the Eastern North Pacific
Subscribe to National Hurricane Center (NHC) Pacific Map feed