Pacific Ocean: Tropical Storm 08E #Henriette 091600Z near 15.8N 142.6W, moving WSW at 11 knots (JTWC) – 090813 1830z

Tropical Storm Henriette

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National Weather Service Forecast Office

Honolulu, Hawai`i

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National Weather Service

Central Pacific Hurricane Center

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IWTPA33 PHFO 091443
TCPCP3

BULLETIN
TROPICAL STORM HENRIETTE ADVISORY NUMBER  25
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   EP082013
500 AM HST FRI AUG 09 2013

…HENRIETTE WEAKENS TO A TROPICAL STORM…

SUMMARY OF 500 AM HST…1500 UTC…INFORMATION
———————————————-
LOCATION…15.9N 142.4W
ABOUT 875 MI…1410 KM ESE OF HILO HAWAII
ABOUT 1080 MI…1740 KM ESE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS…70 MPH…110 KM/H
PRESENT MOVEMENT…WSW OR 250 DEGREES AT 13 MPH…20 KM/H
MINIMUM CENTRAL PRESSURE…995 MB…29.38 INCHES

WATCHES AND WARNINGS
——————–
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

DISCUSSION AND 48-HOUR OUTLOOK
——————————
AT 500 AM HST…1500 UTC…THE CENTER OF TROPICAL STORM HENRIETTE
WAS LOCATED NEAR LATITUDE 15.9 NORTH…LONGITUDE 142.4 WEST.
HENRIETTE IS MOVING TOWARD THE WEST-SOUTHWEST NEAR 13 MPH…
20 KM/H…AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE
NEXT COUPLE OF DAYS…WITH AN INCREASE IN FORWARD SPEED. ON THE
FORECAST TRACK…HENRIETTE WILL PASS WELL SOUTH OF THE MAIN
HAWAIIAN ISLANDS ON SUNDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 70 MPH…110 KM/H…WITH HIGHER
GUSTS. WEAKENING IS FORECAST DURING THE NEXT 48 HOURS…WITH
HENRIETTE EXPECTED TO WEAKEN TO A DEPRESSION EARLY SATURDAY.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 45 MILES…75 KM
FROM THE CENTER.

THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 995 MB…29.38 INCHES.

HAZARDS AFFECTING LAND
———————-
NONE.

NEXT ADVISORY
————-
NEXT COMPLETE ADVISORY…1100 AM HST.

$$

FORECASTER BIRCHARD>

Joint Typhoon Warning Center (JTWC)

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WTPN31 PHNC 091600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL STORM 08E (HENRIETTE) WARNING NR 025    
   DOWNGRADED FROM HURRICANE 08E
01 ACTIVE TROPICAL CYCLONE IN EASTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY

WARNING POSITION:
091200Z — NEAR 16.1N 141.8W
MOVEMENT PAST SIX HOURS – 250 DEGREES AT 11 KTS
POSITION ACCURATE TO WITHIN 020 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS – 060 KT, GUSTS 075 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS – 020 NM NORTHEAST QUADRANT
015 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
020 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 040 NM NORTHEAST QUADRANT
020 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
040 NM NORTHWEST QUADRANT
REPEAT POSIT: 16.1N 141.8W

FORECASTS:
12 HRS, VALID AT:
100000Z — 15.2N 144.3W
MAX SUSTAINED WINDS – 050 KT, GUSTS 065 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS – 010 NM NORTHEAST QUADRANT
005 NM SOUTHEAST QUADRANT
005 NM SOUTHWEST QUADRANT
010 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 040 NM NORTHEAST QUADRANT
020 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
040 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 255 DEG/ 13 KTS

24 HRS, VALID AT:
101200Z — 14.4N 146.9W
MAX SUSTAINED WINDS – 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS – 040 NM NORTHEAST QUADRANT
010 NM SOUTHEAST QUADRANT
010 NM SOUTHWEST QUADRANT
040 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 260 DEG/ 15 KTS

36 HRS, VALID AT:
110000Z — 13.8N 149.9W
MAX SUSTAINED WINDS – 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS – 040 NM NORTHEAST QUADRANT
000 NM SOUTHEAST QUADRANT
000 NM SOUTHWEST QUADRANT
040 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 265 DEG/ 16 KTS

EXTENDED OUTLOOK:
48 HRS, VALID AT:
111200Z — 13.5N 153.1W
MAX SUSTAINED WINDS – 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 72 HR POSIT: 265 DEG/ 17 KTS

72 HRS, VALID AT:
121200Z — 13.0N 160.0W
MAX SUSTAINED WINDS – 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER

REMARKS:
091600Z POSITION NEAR 15.8N 142.6W. TROPICAL STORM 08E (HENRIETTE),
LOCATED APPROXIMATELY 789 NM EAST-SOUTHEASTWARD OF HILO, HAS TRACKED
WEST-SOUTHWESTWARD AT 11 KNOTS OVER THE PAST SIX HOURS. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 091200Z IS 25 FEET. NEXT WARNINGS AT
092200Z, 100400Z, 101000Z AND 101600Z. //
NNNN

MARITIME

WHHW70 PHFO 091335
MWWHFO

URGENT – MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
335 AM HST FRI AUG 9 2013

…LOCALLY STRONG TRADE WINDS AROUND MAUI COUNTY AND THE BIG
ISLAND TODAY…

.HIGH PRESSURE NORTH OF THE STATE WILL PRODUCE LOCALLY STRONG
TRADE WINDS AROUND MAUI COUNTY AND THE BIG ISLAND.

PHZ119>121-123-124-100245-
/O.CON.PHFO.SC.Y.0093.000000T0000Z-130810T0400Z/
MAALAEA BAY-PAILOLO CHANNEL-ALENUIHAHA CHANNEL-
BIG ISLAND LEEWARD WATERS-BIG ISLAND SOUTHEAST WATERS-
335 AM HST FRI AUG 9 2013

…SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS
EVENING…

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS
EVENING.

* WINDS AND SEAS…EAST WINDS 20 TO 25 KNOTS. SEAS 6 TO 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 25 TO 33 KNOTS
AND/OR SEAS 10 FEET OR GREATER ARE EXPECTED TO PRODUCE CONDITIONS
HAZARDOUS TO SMALL CRAFT. INEXPERIENCED MARINERS…ESPECIALLY
THOSE OPERATING SMALLER VESSELS…SHOULD AVOID NAVIGATING IN
THESE CONDITIONS.

&&

$$

FOSTER

METAREA12 / HURRICANE_ADVISORY / 1431
WTPA23 PHFO 091431
TCMCP3

TROPICAL STORM HENRIETTE FORECAST/ADVISORY NUMBER  25
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   EP082013
1500 UTC FRI AUG 09 2013

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

TROPICAL STORM CENTER LOCATED NEAR 15.9N 142.4W AT 09/1500Z
POSITION ACCURATE WITHIN  20 NM

PRESENT MOVEMENT TOWARD THE WEST-SOUTHWEST OR 250 DEGREES AT  11 KT

ESTIMATED MINIMUM CENTRAL PRESSURE  995 MB
MAX SUSTAINED WINDS  60 KT WITH GUSTS TO  75 KT.
50 KT……. 20NE  15SE  20SW  20NW.
34 KT……. 40NE  20SE  30SW  40NW.
12 FT SEAS..120NE  60SE  60SW 150NW.
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 15.9N 142.4W AT 09/1500Z
AT 09/1200Z CENTER WAS LOCATED NEAR 16.1N 141.8W

FORECAST VALID 10/0000Z 15.2N 144.3W
MAX WIND  50 KT…GUSTS  60 KT.
50 KT… 10NE   5SE   5SW  10NW.
34 KT… 40NE  20SE  20SW  40NW.

FORECAST VALID 10/1200Z 14.4N 146.9W
MAX WIND  40 KT…GUSTS  50 KT.
34 KT… 40NE  10SE  10SW  40NW.

FORECAST VALID 11/0000Z 13.8N 149.9W
MAX WIND  35 KT…GUSTS  45 KT.
34 KT… 40NE   0SE   0SW  40NW.

FORECAST VALID 11/1200Z 13.5N 153.1W
MAX WIND  30 KT…GUSTS  40 KT.

FORECAST VALID 12/1200Z 13.0N 160.0W…POST-TROP/REMNT LOW
MAX WIND  25 KT…GUSTS  35 KT.

EXTENDED OUTLOOK. NOTE…ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 175 NM ON DAY 5…AND FOR INTENSITY NEAR 15 KT EACH DAY

OUTLOOK VALID 13/1200Z…DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 15.9N 142.4W

NEXT ADVISORY AT 09/2100Z

..

FORECASTER BIRCHARD

NOAA: Atlantic hurricane season on track to be above-normal; May be very active (link)

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