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Hurricane Information


CPHC Central Pacific

Active tropical cyclones in the Central Pacific

Central Pacific Tropical Weather Outlook

ACPN50 PHFO 242348
TWOCP

Tropical Weather Outlook
NWS Central Pacific Hurricane Center Honolulu HI
200 PM HST Sun Sep 24 2017

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

No tropical cyclones are expected during the next 5 days.

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Forecaster TS

NHC Eastern North Pacific

Active tropical cyclones in the Eastern North Pacific

Eastern North Pacific Tropical Weather Outlook


000
ABPZ20 KNHC 242303
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Sun Sep 24 2017

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

The National Hurricane Center is issuing advisories on Tropical
Storm Pilar, located near the southwest coast of Mexico.

A broad area of low pressure continues to produce disorganized
showers and thunderstorms over the far eastern Pacific. Some
gradual development of this system is possible before it moves
inland over Central America in a few days.
* Formation chance through 48 hours…low…30 percent.
* Formation chance through 5 days…medium…40 percent.

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Forecaster Pasch

Summary for Tropical Storm Pilar (EP3/EP182017)

…PILAR JUST OFF THE COAST OF WESTERN MEXICO… …PRODUCING HEAVY RAINS AND GUSTY WINDS… As of 9:00 PM MDT Sun Sep 24 the center of Pilar was located near 21.8, -106.3 with movement N at 9 mph. The minimum central pressure was 1003 mb with maximum sustained winds of about 40 mph.

Tropical Storm Pilar Public Advisory Number 6

Issued at 900 PM MDT Sun Sep 24 2017

NHC Tropical Weather Discussion (East Pacific)

National Hurricane Center – Tropical Weather Discussion (East Pacific)

NHC East Pacific Tropical Weather Discussion

000
AXPZ20 KNHC 250248
TWDEP Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Mon Sep 25 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 0200 UTC.

SPECIAL FEATURES

Tropical Storm Pilar is centered near near 21.8N 106.3W, or about 15 nm NNE of Las Tres Marias, 1003 MB, at 0300 UTC moving N or 350 DEG at 8 KT. Maximum sustained winds 35 KT gusts 45 KT. Scattered moderate to strong convection is within 120 nm of the coast of Mexico from 21N to 24N. Pilar is expected to slowly track toward the NNW to N through Tuesday night and move along or just offshore of the coastline. Interaction with land will lead to a gradual weakening of Pilar, and is expected to become a tropical depression by Mon evening and then dissipate by Tue evening. Heavy rainfall causing flash floods and mudslides will be possible for Mexican states from Colima, Jalisco and Nayarit, and southern Sinaloa through Monday night. See the latest NHC Forecast/ Advisory under AWIPS/WMO headers MIATCMEP3/WTNT23 KNHC for more details.

..INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH… The monsoon trough extends from 09N76W TO 08N80W to low pres near 14N92.5W 1007 MB TO 11N115W to low pres near 13.5N124W TO 11N133W to beyond 11N140W. Scattered moderate to strong convection is N of 06.5N to the coast between 80W and 89W, and from 10N to 15.5N between 91W and 110W, and within 90 nm S of the trough axis between 116W and 136W.

DISCUSSION

OFFSHORE WATERS WITHIN 250 NM OF MEXICO… A high pressure ridge building SE across the waters north of 25N will aid in freshening NW winds west of Baja California Norte overnight. Elsewhere, expect increasing winds and seas spreading northwestward from near Cabo Corrientes to the southern Gulf of California as Tropical Storm Pilar slowly tracks NNW and weakens during the next few days. Fresh SW to W monsoonal winds well offshore of the Gulf of Tehuantepec will maintain SW wind waves moving into the SE waters with seas 5-7 ft.

OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR…

An active monsoon trough near the coast of Central America from Guatemala to Panama will remain the focus for active convection in coastal waters the next few days. Expect moderate SW to W winds to prevail south of the trough through Tuesday night. Farther south, gentle to moderate south to southwest winds will persist south of 05N through Tuesday night. Long period southerly
swell will decay and allow seas west of Ecuador and south of the
Equator to subside from around 7 ft to around 6 ft during the next couple of days.

REMAINDER OF THE AREA…

NW swell generated by strong winds north of the area are producing 6 to 7 ft seas N of 24N between 116W and 125W. Seas in the area will continue to subside as the NW swell decay. Fresh to strong winds around low pres embedded in the monsoon trough near 13.5N124W are supporting a surrounding area of 8 to 10 ft seas in mixed swell. The low will shift to the ENE during the next few days. Otherwise, high pres centered well N of the area and low pressure associated with the monsoon trough will maintain moderate to occasionally fresh trade winds W of 120W through tonight. Low pressure passing north of the area will weaken the high, allowing trades to decrease during the second half of the week. $$
Stripling

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
800 PM EDT Sun Sep 24 2017

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

The National Hurricane Center is issuing advisories on Hurricane
Maria, located several hundred miles south-southeast of Cape
Hatteras, North Carolina, and on Hurricane Lee, located over the
central Atlantic Ocean.

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

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Forecaster Pasch
NNNN


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
500 PM PDT Sun Sep 24 2017

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

The National Hurricane Center is issuing advisories on Tropical
Storm Pilar, located near the southwest coast of Mexico.

1. A broad area of low pressure continues to produce disorganized
showers and thunderstorms over the far eastern Pacific. Some
gradual development of this system is possible before it moves
inland over Central America in a few days.
* Formation chance through 48 hours…low…30 percent.
* Formation chance through 5 days…medium…40 percent.

Forecaster Pasch