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KF5JRV > WX 18.09.17 13:03l 91 Lines 3473 Bytes #999 (0) @ NA
BID : 4300_KF5JRV
Read: GUEST
Subj: NWS NHC Eastern N Pacific WX 9/18
Path: IW8PGT<CX2SA<XE1FH<N9PMO<NS2B<KF5JRV
Sent: 170918/1120Z 4300@KF5JRV.#NWAR.AR.USA.NA BPQK6.0.14
000
AXPZ20 KNHC 180953
TWDEP
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Mon Sep 18 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 0600 UTC surface analysis and satellite imagery through
0900 UTC.
...SPECIAL FEATURES...
Hurricane Otis at 18/0900 UTC: center near 18.5N 127.3W, moving
N or 355 degrees, 05 knots. The estimated minimum central
pressure is 976 mb. The maximum sustained wind speeds are 85
knots with gusts to 105 knots. Convective precipitation:
scattered moderate to strong from 20N to 23N between 111W and
112W. Please read the latest NHC Forecast/Advisory under
AWIPS/WMO headers MIATCMEP5/WTPZ25 KNHC for additional details.
Tropical Storm Norma at 18/0900 UTC: center near 21.4N 111.8W,
or about 140 miles SW of Cabo San Lucas Mexico, moving WNW or
285 degrees, 04 knots. The estimated minimum central pressure is
1000 mb. The maximum sustained wind speed is 45 knots with gusts
to 55 knots. Convective precipitation: scattered moderate to
isolated strong within 180 nm N quadrant. Please read the latest
NHC Forecast/Advisory under AWIPS/WMO headers MIATCMEP2/WTPZ22
KNHC for additional details.
...TROPICAL WAVES...
A tropical wave is along 90W/91W from 22N southward, moving
westward 10 knots. Convective precipitation: scattered to
numerous strong within 75 nm to the NE of the line 15N98W 14N94W
13N93W 11N90W, in the coastal waters from El Salvador to Mexico.
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
The monsoon trough passes through the coastal sections of Panama
near 08N78W, to 11N91W, to 07N107W and 08N115W. It continues
from 15N134W beyond 11N140W. Convective precipitation: SCATTERED
MODERATE ISOLATED STRONG WITHIN 180 NM S OF TROUGH BETWEEN 93W
AND 96W...WITHIN 300 NM N OF TROUGH BETWEEN 102W AND 105W...AND
WITHIN 210 NM S OF TROUGH W OF 128W.
...DISCUSSION...
OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
Please refer to the special features section for more
information about Tropical Storm Norma.
Gulf of California...Moderate to strong southerly winds
associated with Tropical Storm Norma are observed across the
Gulf waters S OF 25N where southerly swells are expected to
combine with the wind waves in order to create seas to 10 ft
tonight. These southerly winds will diminish to a moderate
breeze during the rest of the day today.
OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND
WITHIN 750 NM OF ECUADOR...
Light to gentle winds will continue N of the monsoon trough
through early Tue when the monsoon trough will lift further
northward. Moderate SW winds and 4 to 7 ft seas will prevail S
of the monsoon trough axis through Thu.
REMAINDER OF THE AREA...
Please refer to the special features section for more
information about Hurricane Otis. A NW-to-SE orientated surface
ridge separates the areas of cyclonic wind flow that are around
the tropical cyclones.
Long period NW swell in the form of 8 to 9 ft seas will arrive
near 30N122W on Tuesday in the early afternoon, and continue to
propagate southward, and be to the NW of the line from 30N118W
to 26N120W to 26N125W to 16N125W to 16N140W early on Wednesday
morning, and then to the NW of the line from 30N116W to 22N118W
to 15N130W to 15N140W early on Thursday morning.
$$
mt
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