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Hurricane Information


CPHC Central Pacific

Active tropical cyclones in the Central Pacific

Central Pacific Tropical Weather Outlook

ACPN50 PHFO 280531
TWOCP

Tropical Weather Outlook
NWS Central Pacific Hurricane Center Honolulu HI
800 PM HST Thu Jul 27 2017

For the central North Pacific...between 140W and 180W:

No tropical cyclones are expected during the next 5 days.

$$
Forecaster Houston

NHC Eastern North Pacific

Active tropical cyclones in the Eastern North Pacific

Eastern North Pacific Tropical Weather Outlook


000
ABPZ20 KNHC 280528
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Thu Jul 27 2017

For the eastern North Pacific…east of 140 degrees west longitude:

The National Hurricane Center is issuing advisories on Tropical
Storm Hilary, located several hundred miles west-southwest of the
southern tip of the Baja California peninsula, and on Tropical Storm
Irwin, located about 1000 miles west-southwest of the southern tip
of the Baja California peninsula.

Tropical cyclone formation is not expected during the next 5 days.

$$
Forecaster Roberts

Summary for Tropical Storm Hilary (EP4/EP092017)

…HILARY WEAKENS TO A TROPICAL STORM… As of 8:00 PM PDT Thu Jul 27 the center of Hilary was located near 18.3, -117.3 with movement WNW at 8 mph. The minimum central pressure was 992 mb with maximum sustained winds of about 70 mph.

Tropical Storm Hilary Public Advisory Number 27

Issued at 800 PM PDT Thu Jul 27 2017

NHC Tropical Weather Discussion (East Pacific)

National Hurricane Center – Tropical Weather Discussion (East Pacific)

NHC East Pacific Tropical Weather Discussion

000
AXPZ20 KNHC 280300
TWDEP Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Thu Jul 27 2017
Tropical Weather Discussion for the eastern Pacific Ocean from
the Equator to 32N, east of 140W. The following information is
based on satellite imagery, weather observations, radar, and
meteorological analysis.

Based on 0000 UTC surface analysis and satellite imagery through 0215 UTC.

SPECIAL FEATURES

Hurricane Hilary was downgraded to a tropical storm at 28/0300 UTC. At this time, Hilary is centered near 18.3N 117.3W or about 485 nm SW of the southern tip of Baja California moving WNW at 7 kt. Estimated minimum central pressure is 992 mb. Maximum sustained wind speed is 60 kt with gusts to 75 kt. Numerous moderate convection is within 60 nm S quadrant. See latest NHC forecast/ advisory under AWIPS/WMO headers MIATCMEP4/WTPZ24 for more details.

Tropical Storm Irwin is centered near 14.9N 124.6W at 28/0300 UTC or about 950 nm WSW of the southern tip of Baja California moving W at 2 kt. Estimated minimum central pressure is 1000 mb. Maximum sustained wind speed is 50 kt with gusts to 60 kt. Some fluctuations in intensity are likely the rest of today and tomorrow. Numerous moderate and scattered strong convection is within 90 nm of center, except NW quadrant. See latest NHC forecast/ advisory under AWIPS/WMO headers MIATCMEP5/WTPZ25 for more details.

…INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH… The monsoon trough extends from 10N86W to 08N95W to 09N105W to 12N110W. The ITCZ axis extends from 10N132W to 07N140W. Scattered moderate isolated strong convection is within 150 nm south of trough between 88W and 92W, and within 150 nm north of trough between 94W and 97W. Scattered moderate convection is near the western end of the monsoon trough from 08N to 14N between 108W and 115W. This convective activity was previously associated with a tropical wave. Scattered moderate isolated strong convection is on either side of the ITCZ axis from 07N to 10N W of 132W.

DISCUSSION

OFFSHORE WATERS WITHIN 250 NM OF MEXICO… Gentle to moderate NW winds are expected to continue within 120 nm of the Baja California peninsula through Friday. Seas of at least 8 ft associated with tropical cyclone Hilary will continue to impact the forecast zones offshore of Baja California through the upcoming weekend. As Hilary moves away from this area, expect moderate to fresh NW winds just off the coast of Baja California, and across the southern Gulf of California Sun night into Mon. A ridge will build between the Baja California Peninsula and tropical cyclones Hilary and Irwin.

Nocturnal fresh northerly winds are forecast across the Gulf of Tehuantepec through Friday morning with seas peaking around 8 ft during the period of strongest winds. Cross equatorial long period southerly swell with seas of 7-8 ft will reach the offshore waters between the Gulf of Tehuantepec and Cabo Corrientes on Sun, and the waters between Los Cabos and Cabo Corrientes on Mon. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR… Across the Gulf of Papagayo, expect fresh winds each night with the assistance of the nocturnal drainage flow the next few days, occasionally building maximum seas 7 to 8 ft in a mix of E wind waves and long period SW swell.

Gentle to moderate S to SW winds are expected the next few days. Long period cross-equatorial SW swell will continue to propagate into the forecast waters through Saturday, reaching the waters between Ecuador and the Galapagos Islands tonight with building seas of 8-9 ft.

REMAINDER OF THE AREA… High pressure is located N of the area with a ridge axis extending across the northern forecast waters N of 20N. The pressure gradient between this system and the active zone of tropical cyclone activity will maintain moderate to fresh N to NE winds W of 120W through Saturday. Long period cross equatorial SW swell of 8-9 ft will spread across the waters S of 10N and E of 110W, persisting into the weekend. $$
GR

National Hurricane Center Graphical Tropical Weather Outlooks

National Hurricane Center Graphical Tropical Weather Outlooks

NHC Atlantic Outlook


Atlantic 2-Day Graphical Outlook Image
Atlantic 5-Day Graphical Outlook Image


ZCZC MIATWOAT ALL
TTAA00 KNHC DDHHMM

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 AM EDT Fri Jul 28 2017

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

1. A large area of cloudiness and disorganized shower activity is
associated with a broad low pressure system located about 800 miles
west-southwest of the Cabo Verde Islands. Slow development is
possible over the next several days while the system moves
slowly westward or west-northwestward.
* Formation chance through 48 hours…low…near 0 percent.
* Formation chance through 5 days…low…30 percent.

Forecaster Beven


NHC Eastern North Pacific Outlook


Eastern North Pacific 2-Day Graphical Outlook Image
Eastern North Pacific 5-Day Graphical Outlook Image


ZCZC MIATWOEP ALL
TTAA00 KNHC DDHHMM

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Thu Jul 27 2017

For the eastern North Pacific…east of 140 degrees west longitude:

The National Hurricane Center is issuing advisories on Tropical
Storm Hilary, located several hundred miles west-southwest of the
southern tip of the Baja California peninsula, and on Tropical Storm
Irwin, located about 1000 miles west-southwest of the southern tip
of the Baja California peninsula.

Tropical cyclone formation is not expected during the next 5 days.

$$
Forecaster Roberts
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