Tropical Cyclone FEHI 08P
New Caledonia, Norfolk Island & New Zealand be aware!
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 291800Z IS 20 FEET. – JTWC
Joint Typhoon Warning Center (JTWC)
Tropical Cyclone 08P (Fehi) Warning #08
Issued at 29/2100Z
WTPS31 PGTW 292100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 08P (FEHI) WARNING NR 008
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
—
WARNING POSITION:
291800Z — NEAR 23.4S 163.9E
MOVEMENT PAST SIX HOURS – 165 DEGREES AT 23 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS – 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS – 120 NM NORTHEAST QUADRANT
125 NM SOUTHEAST QUADRANT
105 NM SOUTHWEST QUADRANT
110 NM NORTHWEST QUADRANT
REPEAT POSIT: 23.4S 163.9E
—
FORECASTS:
12 HRS, VALID AT:
300600Z — 27.9S 164.0E
MAX SUSTAINED WINDS – 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS – 105 NM NORTHEAST QUADRANT
255 NM SOUTHEAST QUADRANT
155 NM SOUTHWEST QUADRANT
010 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 180 DEG/ 23 KTS
—
24 HRS, VALID AT:
301800Z — 32.4S 164.2E
MAX SUSTAINED WINDS – 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
BECOMING EXTRATROPICAL
RADIUS OF 034 KT WINDS – 205 NM NORTHEAST QUADRANT
260 NM SOUTHEAST QUADRANT
105 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 160 DEG/ 26 KTS
—
36 HRS, VALID AT:
310600Z — 37.2S 166.4E
MAX SUSTAINED WINDS – 050 KT, GUSTS 065 KT
WIND RADII VALID OVER OPEN WATER ONLY
BECOMING EXTRATROPICAL
RADIUS OF 050 KT WINDS – 035 NM NORTHEAST QUADRANT
005 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
020 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 250 NM NORTHEAST QUADRANT
295 NM SOUTHEAST QUADRANT
165 NM SOUTHWEST QUADRANT
135 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 150 DEG/ 29 KTS
—
EXTENDED OUTLOOK:
48 HRS, VALID AT:
311800Z — 42.3S 170.1E
MAX SUSTAINED WINDS – 050 KT, GUSTS 065 KT
WIND RADII VALID OVER OPEN WATER ONLY
EXTRATROPICAL
RADIUS OF 050 KT WINDS – 100 NM NORTHEAST QUADRANT
065 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
045 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 320 NM NORTHEAST QUADRANT
335 NM SOUTHEAST QUADRANT
275 NM SOUTHWEST QUADRANT
280 NM NORTHWEST QUADRANT
—
REMARKS:
292100Z POSITION NEAR 24.5S 163.9E.
TROPICAL CYCLONE 08P (FEHI), LOCATED APPROXIMATELY 145 NM WEST-
SOUTHWEST OF NOUMEA, NEW CALEDONI, HAS TRACKED SOUTH-
SOUTHEASTWARD AT 23 KNOTS OVER THE PAST SIX HOURS. ANIMATED
INFRARED SATELLITE IMAGERY DEPICTS A PARTIALLY EXPOSED LOW LEVEL
CIRCULATION CENTER (LLCC) WITH DECREASING AND HIGHLY SHEARED DEEP
CONVECTIVE ACTIVITY. THE INITIAL POSITION IS PLACED WITH LOW
CONFIDENCE BASED ON THE EIR IMAGERY LOOP AND IS SUPPORTED BY
291839Z GPM 91 GHZ MICROWAVE IMAGE DEPICTING AN EXPOSED LLCC WITH
FLARING DEEP CONVECTION TO THE SOUTH AND EAST OF THE CENTER. THE
INITIAL INTENSITY HAS MAINTAINED AT 40 KNOTS AND IS BASED ON MULTI-
AGENCY DVORAK CURRENT INTENSITY ESTIMATES RANGING OF T2.0 (30
KNOTS) FROM KNES AND PGTW, HEDGED SLIGHTLY HIGHER BASED ON A
291235Z ASCAT SCATTEROMETER PASS INDICATING 40 KNOT WINDS IN THE
SOUTHERN HEMISPHERE OF THE SYSTEM, AN ADVANCED DVORAK TECHNIQUE
ESTIMATE OF T2.7 (39 KNOTS) AND A MULTI-SENSOR SATELLITE CONSENSUS
ESTIMATE OF 47 KNOTS. ENVIRONMENTAL ANALYSIS INDICATES THAT TC FEHI
HAS LIKELY COMPLETED TRANSITION TO A SUB-TROPICAL SYSTEM. TC FEHI
CURRENTLY LIES UNDER STRONG (35-40 KNOTS) VWS AND IS TRACKING OVER
ONLY MARGINAL (26-27 DEGREES C) SSTS. AN AMSU THERMAL CROSS SECTION
INDICATES A STRONG WARM ANOMALY IN THE NEAR-SURFACE LAYER, WITH A
WEAK WARM ANOMALY PRESENT IN THE UPPER LEVELS, SUPPORTING THE
ASSESSMENT THAT TC FEHI IS IN FACT SUB-TROPICAL. THE STRONG VWS IS
BEING OFFSET BY STRONG DIVERGENCE ALOFT WHICH IS HELPING TO
MAINTAIN THE INTENSITY AS THE SYSTEM MOVES RAPIDLY SOUTHWARD ALONG
THE WESTERN OF A SUBTROPICAL RIDGE (STR) TO THE EAST, AHEAD OF AN
APPROACHING MID-LATITUDE TROUGH. TC FEHI IS FORECAST TO CONTINUE
TRACKING RAPIDLY SOUTHWARD BEFORE TURNING MORE SOUTHEASTWARD BEYOND
TAU 24. TC FEHI IS FORECAST TO SLOWLY INTENSITY FROM TAU 24 TO 48,
AS IT BEGINS TO UNDERGO EXTRA TROPICAL TRANSITION (ETT) AS IT
INTERACTS WITH THE BAROCLINIC ZONE AHEAD OF THE APPROACHING MID-
LATITUDE TROUGH. THE SYSTEM IS EXPECTED TO BECOME COMPLETELY
EMBEDDED IN THE BAROCLINIC ZONE AND COMPLETE ETT BY TAU 48, AS A 50
KNOT SYSTEM. AVAILABLE NUMERICAL GUIDANCE IS IN TIGHT AGREEMENT
THROUGH THE FORECAST PERIOD, LENDING HIGH CONFIDENCE TO THE JTWC
TRACK FORECAST. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 291800Z IS 20
FEET. NEXT WARNINGS AT 300300Z, 300900Z, 301500Z AND 302100Z.//
NNNN
TROPICAL DISTURBANCE ADVISORY NUMBER A9 ISSUED FROM RSMC NADI
Jan 292022 UTC.
TROPICAL CYCLONE FEHI CENTRE 988HPA WAS LOCATED NEAR 22.7S 163.9E AT
291800 UTC. POSITION POOR BASED ON HR HIMAWARI 8 EIR AND PERIPHERAL
SURFACE REPORTS. TROPICAL CYCLONE FEHI MOVING SOUTH SOUTHEAST AT
ABOUT 21 KNOTS. MAXIMUM 10-MINUTE AVERAGE WINDS NEAR THE CENTRE
ESTIMATED AT ABOUT 35 KNOTS.
OVERALL ORGANISATION HAS NOT CHANGED MUCH IN THE PAST 06 HOURS. DEEP
CONVECTION DISPLACED TO SOUTHEAST OF PARTIALLY EXPOSED LLCC. SYSTEM
LIES EAST OF AN UPPER SHORT WAVE TROUGH IN A MODERATE TO HIGH SHEARED
ENVIRONMENT. SYSTEM IS BEING STEERED TO SOUTHEAST BY THE
NORTHWESTERLY DEEP LAYER MEAN WIND. OUTFLOW GOOD TO THE SOUTH
SOUTHEAST BUT RESTRICTED ELSEWHERE. SST AROUND 27 DEGREES CELCIUS.
DVORAK ANALYSIS BASED ON SHEAR PATTERN WITH LLCC APPROXIMATELY 45
NAUTICAL MILES FROM EDGE OF DEEP CONVECTION, GIVING DT=3.0 MET=2.5
AND PT=2.5. FT BASED ON DT, THUS YIELDING, 3.0/3.0/S0.0/24HRS
FORECASTS :
AT 12 HRS VALID AT 300600 UTC 25.6S 164.2E MOV S AT 18 KT WITH 35 KT
CLOSE TO CENTRE
AT 24 HRS VALID AT 301800 UTC 28.7S 164.0E MOV S AT 15 KT WITH 35 KT
CLOSE TO CENTRE
OUTLOOK :
AT 36 HRS VALID AT 310600 UTC 31.4S 164.4E MOV S AT 15 KT WITH 35 KT
CLOSE TO CENTRE
AT 48 HRS VALID AT 311800 UTC 34.6S 165.1E MOV S AT 15 KT WITH 35 KT
CLOSE TO CENTRE
THE NEXT TROPICAL DISTURBANCE ADVISORY ON TROPICAL CYCLONE FEHI WILL
BE ISSUED AROUND 302000 UTC.
TROPICAL STORM RISK (TSR)
SW Pacific: Storm Alert issued at 29 Jan, 2018 18:00 GMT
Tropical Storm FEHI is currently located near 23.4 S 163.9 E with maximum 1-min sustained winds of 40kts (46 mph). FEHI is forecast to affect land to the following likelihood(s) at the given lead time(s):
Yellow Alert Country(s) or Province(s)
New Zealand
probability for TS is 100% in about 48 hours
Norfolk Island
probability for TS is 75% within 12 hours
New Caledonia
probability for TS is 60% currently
Yellow Alert City(s) and Town(s)
Greymouth (42.5 S, 171.2 E)
probability for TS is 100% in about 48 hours
Christchurch (43.5 S, 172.6 E)
probability for TS is 100% in about 48 hours
Dunedin (45.9 S, 170.5 E)
probability for TS is 90% in about 48 hours
Kingston (29.1 S, 168.0 E)
probability for TS is 75% within 12 hours
Wellington (41.3 S, 174.8 E)
probability for TS is 75% in about 48 hours
Invercargill (46.4 S, 168.4 E)
probability for TS is 70% in about 48 hours
New Plymouth (39.1 S, 174.1 E)
probability for TS is 65% in about 48 hours
Green Alert City(s) and Town(s)
Bourail (21.6 S, 165.5 E)
probability for TS is 45% currently
Note that
Yellow Alert (Elevated) is CAT 1 or above to between 10% and 30% probability, or TS to above 50% probability.
Green Alert (Low) is TS to between 31% and 50% probability.
CAT 1 means Tropical Cyclone strength winds of at least 74 mph, 119 km/h or 64 knots 1-min sustained.
TS means Tropical Storm strength winds of at least 39 mph, 63 km/h or 34 knots 1-min sustained.
For graphical forecast information and further details please visit http://www.tropicalstormrisk.com/
WEATHER UNDERGROUND
(Above image: @wunderground)
MARITIME/SHIPPING
GALE WARNING 023 ISSUED FROM RSMC NADI Jan 291921 UTC.
TROPICAL CYCLONE FEHI CENTRE 988HPA CATEGORY 1 WAS LOCATED NEAR 22.7
SOUTH 163.9 EAST AT 291800 UTC.
POSITION POOR.
REPEAT POSITION 22.7S 163.9E AT 291800 UTC.
CYCLONE MOVING SOUTH SOUTHEAST AT 21 KNOTS. CYCLONE WEAKENING.
EXPECT SUSTAINED WINDS OF 35 KNOTS CLOSE TO THE CENTRE.
EXPECT WINDS OVER 33 KNOTS WITHIN 150 NAUTICAL MILES IN NE QUADRANT
AND WITHIN 180 NAUTICAL MILES IN SE QUADRANT
AND WITHIN 180 NAUTICAL MILES IN SW QUADRANT
AND WITHIN 060 NAUTICAL MILES IN NW QUADRANT
FORECAST POSITION NEAR 25.6S 164.2E AT 300600 UTC
AND NEAR 28.7S 164.0E AT 301800 UTC.
ALL VESSELS WITHIN 300 NAUTICAL MILES OF CENTRE ARE REQUESTED TO SEND
REPORTS EVERY THREE HOURS TO RSMC NADI. VOS REPORTING SHIPS USE
NORMAL CHANNELS. OTHER VESSELS FAX PLUS 679 6720190 OR EMAIL NADITCC
AT MET DOT GOV DOT FJ
THIS WARNING CANCELS AND REPLACES WARNING 020.
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