Fiji: Tropical Cyclone ELLA (19P) 101500Z near 14.4S 176.8W, moving WNW 11 kt (JTWC) – Updated 10 May 2017 1620z (GMT/UTC)

Tropical Cyclone ELLA (19P)

MAXIMUM SIGNIFICANT WAVE HEIGHT AT 10/1200Z IS 16 FEET. (JTWC)

Joint Typhoon Warning Center (JTWC)

sh1917 JTWC 10

19P_101200sair ella 10

Google Earth Overlay

WTPS32 PGTW 101500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 19P (ELLA) WARNING NR 004//
RMKS/
1. TROPICAL CYCLONE 19P (ELLA) WARNING NR 004
02 ACTIVE TROPICAL CYCLONES IN SOUTHPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY

WARNING POSITION:
101200Z — NEAR 14.3S 176.4W
MOVEMENT PAST SIX HOURS – 285 DEGREES AT 11 KTS
POSITION ACCURATE TO WITHIN 030 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS – 050 KT, GUSTS 065 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS – 010 NM NORTHEAST QUADRANT
025 NM SOUTHEAST QUADRANT
000 NM SOUTHWEST QUADRANT
000 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 075 NM NORTHEAST QUADRANT
080 NM SOUTHEAST QUADRANT
055 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
REPEAT POSIT: 14.3S 176.4W

FORECASTS:
12 HRS, VALID AT:
110000Z — 14.6S 178.0W
MAX SUSTAINED WINDS – 050 KT, GUSTS 065 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS – 015 NM NORTHEAST QUADRANT
015 NM SOUTHEAST QUADRANT
010 NM SOUTHWEST QUADRANT
000 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 080 NM NORTHEAST QUADRANT
080 NM SOUTHEAST QUADRANT
065 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 250 DEG/ 06 KTS

24 HRS, VALID AT:
111200Z — 15.0S 179.2W
MAX SUSTAINED WINDS – 050 KT, GUSTS 065 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS – 015 NM NORTHEAST QUADRANT
020 NM SOUTHEAST QUADRANT
010 NM SOUTHWEST QUADRANT
000 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 090 NM NORTHEAST QUADRANT
080 NM SOUTHEAST QUADRANT
065 NM SOUTHWEST QUADRANT
040 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 245 DEG/ 05 KTS

36 HRS, VALID AT:
120000Z — 15.4S 179.9E
MAX SUSTAINED WINDS – 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS – 080 NM NORTHEAST QUADRANT
070 NM SOUTHEAST QUADRANT
065 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 260 DEG/ 03 KTS

EXTENDED OUTLOOK:
48 HRS, VALID AT:
121200Z — 15.5S 179.3E
MAX SUSTAINED WINDS – 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS – 080 NM NORTHEAST QUADRANT
070 NM SOUTHEAST QUADRANT
065 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 290 DEG/ 03 KTS

72 HRS, VALID AT:
131200Z — 15.1S 178.2E
MAX SUSTAINED WINDS – 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
RADIUS OF 034 KT WINDS – 060 NM NORTHEAST QUADRANT
070 NM SOUTHEAST QUADRANT
065 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 290 DEG/ 04 KTS

LONG RANGE OUTLOOK:

96 HRS, VALID AT:
141200Z — 14.5S 176.6E
MAX SUSTAINED WINDS – 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER

REMARKS:
101500Z POSITION NEAR 14.4S 176.8W.
TROPICAL CYCLONE 19P (ELLA), LOCATED APPROXIMATELY 215 NM WEST-
SOUTHWEST OF AVATA, SAMOA, HAS TRACKED WEST-NORTHWESTWARD AT 11
KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE
IMAGERY DEPICTS FURTHER CONSOLIDATION WITH DEEP CENTRAL CONVECTION
AND COOLING CLOUD TOPS. THE INITIAL POSITION IS EXTRAPOLATED FROM A
100950Z METOP-A ASCAT IMAGE SHOWING A WELL-DEFINED LOW LEVEL
CIRCULATION CENTER. THE INITIAL INTENSITY ASSESSMENT OF 50 KNOTS IS
ALSO BASED ON THE AFOREMENTIONED ASCAT IMAGE IN AGREEMENT WITH
AGENCY DVORAK ESTIMATES RANGING FROM T3.0 TO T3.5 (45 TO 55 KNOTS).
ENVIRONMENTAL ANALYSIS SHOWS A MARGINAL ENVIRONMENT WITH WARM SSTS
NEAR 29 CELSIUS AND LOW VERTICAL WIND SHEAR BEING OFFSET BY A POOR
OUTFLOW ENVIRONMENT. CURRENTLY TC ELLA IS TRACKING WEST-
NORTHWESTWARD GUIDED BY A MID-LEVEL RIDGE. TC ELLA WILL CONTINUE
TRACKING WESTWARD OVER THE NEXT 36 HOURS UNTIL A TROUGH MOVES INTO
THE REGION FROM THE WEST SLIGHTLY ERODING THE STEERING RIDGE AND
INTRODUCING MODERATE WIND SHEAR. THE SYSTEM WILL WEAKEN AS IT TURNS
TO THE NORTHWEST AND FULLY DISSIPATE BY TAU 96. NUMERICAL MODEL
GUIDANCE IS IN GOOD AGREEMENT WITH THE TRACK MOTION UP TO TAU 36.
THEREAFTER, MODEL SOLUTIONS ARE MIXED AS TO WHETHER THE SYSTEM WILL
CONTINUE WESTWARD OR TURN SOUTHWARD AROUND THE RIDGE AXIS INTO THE
TROUGH. DUE TO THESE DIFFERENCES IN MODEL GUIDANCE THERE IS LOW
CONFIDENCE IN THE FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT
101200Z IS 16 FEET. NEXT WARNINGS AT 110300Z AND 111500Z.//
NNNN

RSMC Nadi Tropical Cyclone Warning Centre (FIJI)

TROPICAL CYCLONE FORECAST TRACK MAP

Tropical Cyclone ELLA

Tropical Cyclone Warning Number 66 issued 1320 UTC Wednesday 10 May 2017

Current and Past Cyclone Details Forecast Cyclone Details
(at 24, 48 and 72 hours from issue)
Current Location and Intensity Number
Very Destructive Hurricane Force Winds
Destructive Storm Force Winds
Damaging Gale Force Winds
Past Track and Movement
Past Location and Intensity Number
Forecast Location and Intensity Number
Very Destructive Wind Boundary
Destructive Wind Boundary
Gale Force Wind Boundary
Most Likely Future Track
Range of Likely Tracks over 72 hours

The forecast path shown above is the Nadi’s best estimate of the cyclone’s future movement and intensity. There is always some uncertainty associated with tropical cyclone forecasting and the grey zone indicates the range of likely tracks.
Name:  Tropical Cyclone ELLA

Details:

Time (UTC) Intensity Category Latitude
(decimal deg.)
Longitude
(decimal deg.)
Estimated Position
Accuracy (km)
0hr 12 pm May 10 2 14.3S 176.1W 130
+6hr 6 pm May 10 2 14.5S 176.9W 155
+12hr 12 am May 11 2 14.8S 177.7W 185
+18hr 6 am May 11 2 15.1S 178.4W 215
+24hr 12 pm May 11 2 15.3S 178.9W 240
+36hr 12 am May 12 2 15.8S 179.8W 300
+48hr 12 pm May 12 2 16.0S 179.5E 360
+60hr 12 am May 13 2 16.2S 178.8E 450
+72hr 12 pm May 13 2 16.2S 178.1E 535

Fiji time is UTC +12 hours.
For example, 0000 UTC Saturday is 1200 Saturday Fiji time.
For example, 1800 UTC Saturday is 0600 Sunday Fiji time.

Category Cyclone 1 has mean winds 34-47 knots with a central pressure greater than 985 hPa
Category Cyclone 2 has mean winds 48-63 knots with a central pressure 985-970 hPa
Category Cyclone 3 has mean winds 64-85 knots with a central pressure 970-945 hPa
Category Cyclone 4 has mean winds 86-107 knots with a central pressure 945-910 hPa
Category Cyclone 5 has mean winds greater than 107 knots with a central pressure less than 910 hPa

The next TC Threat Track Map is scheduled to be issued within six hours.

Special Weather Bulletin Number THREE for Fiji ON TROPICAL CYCLONE
ELLA
ISSUED FROM RSMC NADI at 2:14am on Thursday the 11th of May 2017 (Local Time)

TROPICAL CYCLONE ALERT

TROPICAL CYCLONE ELLA CENTRE 985HPA CATEGORY 2 WAS LOCATED NEAR 14
DECIMAL 3 SOUTH 176 DECIMAL 1 WEST OR ABOUT 440 KM NORTHEAST OF VANUA
BALAVU AT MIDNIGHT. THE CYCLONE IS CURRENTLY MOVING WEST AT ABOUT 16
KM/HR TOWARDS FIJI. CLOSE TO ITS CENTRE, THE CYCLONE IS ESTIMATED TO
HAVE AVERAGE WINDS OF 95KM/HR AND MOMENTARY GUST TO 130KM/HR.
ON THIS TRACK, THE CYCLONE MAY BRING DAMAGING GALE FORCE WINDS OVER
VANUA LEVU, TAVEUNI AND NEARBY SMALLER ISLANDS, LAU AND LOMAIVITI
GROUP FROM TOMORROW.

FOR LAU AND LOMAIVITI GROUP, VANUA LEVU, TAVEUNI AND NEARBY SMALLER
ISLANDS:
EXPECT STRONG SOUTHEAST WINDS WITH AVERAGE SPEEDS OF 45 KM/HR WITH
GUSTS TO 80 KM/HR, EXPECTED TO INCREASE FURTHER TO DAMAGING GALE
FORCE WINDS OF 85KM/HR WITH GUSTS TO 110KM/HR FROM TOMORROW.
OCCASIONAL SHOWERS AND FEW THUNDERSTORMS. SHOWERS EXPECTED TO
INCREASE TO RAIN AND BECOME FREQUENT AND HEAVY WITH THUNDERSTORMS
FROM TOMORROW.

FOR THE REST OF FIJI:
MODERATE TO FRESH SOUTHEASTERLY WINDS, BECOMING STRONG SOUTHEAST
WINDS WITH AVERAGE SPEEDS OF 45 KM/HR AND GUSTS TO 80 KM/HR EXPECTED
FOR TOMORROW NIGHT. FINE APART FROM ISOLATED SHOWERS AND
THUNDERSTORMS, SHOWERS BECOMING FREQUENT AND HEAVY FROM TOMORROW
NIGHT.
The following information is provided especially for the mariners:
FOR NORTHERN VANUA LEVU, LAU, KORO SEA, VATU-I-RA AND KADAVU PASSAGE:
STRONG SOUTHEAST WINDS 20 TO 30 KNOTS WITH GUSTS TO 45 KNOTS. ROUGH
SEAS. MODERATE SOUTHEAST SWELLS. WINDS EXPECTED TO INCREASE FURTHER
TO GALE FORCE WINDS OF 40 KNOTS WITH GUSTS TO 55 KNOTS WITH HIGH SEAS
FROM TOMORROW. MODERATE TO HEAVY SOUTHEAST SWELLS.

FOR THE REST OF FIJI WATERS:
SOUTHEAST WINDS 15 TO 20 KNOTS WITH GUSTS TO 30 KNOTS. MODERATE TO
ROUGH SEAS. MODERATE SOUTHEAST SWELLS. WINDS EXPECTED TO INCREASE TO
20 TO 25 KNOTS FROM LATER TOMORROW WITH ROUGH SEAS. MODERATE
SOUTHEAST SWELLS.

THE NEXT SPECIAL WEATHER BULLETIN FOR FIJI ON TROPICAL CYCLONE ELLA
WILL BE ISSUED AT AROUND 102000UTC OR EARLIER.

SW Pacific: TSR Storm Alert issued at 10 May, 2017 12:00 GMT

Tropical Storm ELLA is currently located near 14.3 S 176.4 W with maximum 1-min sustained winds of 50kts (58 mph). ELLA is forecast to affect land to the following likelihood(s) at the given lead time(s):
Yellow Alert City(s) and Town(s)
    Mata-Utu (13.3 S, 176.2 W)
        probability for TS is 70% currently

Green Alert Country(s) or Province(s)
    Fiji
        probability for TS is 50% in about 36 hours
Green Alert City(s) and Town(s)
    Naduri (16.4 S, 179.2 E)
        probability for TS is 45% in about 48 hours

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.

201719P ELLA TSR

DoctorAdvice4U ELLA FIJI

(Image: DoctorAdvice4U)

sp201719_5day ELLA wunderground 10

(5 Day Track Map from @wunderground)

sp201719_sat_anim 10

(Image: derground)

MARITIME/SHIPPING

STORM WARNING 068 ISSUED FROM RSMC NADI May 101310 UTC.

TROPICAL CYCLONE ELLA CENTRE 985HPA CATEGORY 2 WAS LOCATED NEAR 14.3
SOUTH 176.1 WEST AT 101200 UTC.
POSITION POOR.
REPEAT POSITION 14.3S 176.1W AT 101200 UTC.
CYCLONE MOVING WEST AT 9 KNOTS. CYCLONE INTENSIFYING.
EXPECT SUSTAINED WINDS OF 50 KNOTS CLOSE TO THE CENTRE INCREASING TO
60 KNOTS BY 111200 UTC.

EXPECT WINDS OVER 47 KNOTS WITHIN 20 NAUTICAL MILES OF CENTRE AND
EXPECT WINDS OVER 33 KNOTS WITHIN 70 NAUTICAL MILES IN NE QUADRANT
AND WITHIN 90 NAUTICAL MILES IN SE QUADRANT
AND WITHIN 90 NAUTICAL MILES IN SW QUADRANT
AND WITHIN 60 NAUTICAL MILES IN NW QUADRANT

FORECAST POSITION NEAR 14.8S 177.7W AT 110000 UTC
AND NEAR 15.3S 178.9W AT 111200 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 066.

GALE WARNING 069 ISSUED FROM RSMC NADI May 101313 UTC.

EX TROPICAL CYCLONE DONA CENTRE [1000HPA] WAS LOCATED NEAR 24.1S 168.4E AT
101200UTC. POSITION POOR. EX TROPICAL CYCLONE DONA MOVING SOUTH AT 03 KNOTS.

EXPECT NORTHEAST TO SOUTHEAST WINDS UPTO 35 KNOTS.

THIS WARNING CANCELS AND REPLACES WARNING 067.

Special Weather Bulletin Number THREE for Fiji ON TROPICAL CYCLONE
ELLA
ISSUED FROM RSMC NADI at 2:14am on Thursday the 11th of May 2017 (Local Time)

EXTRACT

The following information is provided especially for the mariners:
FOR NORTHERN VANUA LEVU, LAU, KORO SEA, VATU-I-RA AND KADAVU PASSAGE:
STRONG SOUTHEAST WINDS 20 TO 30 KNOTS WITH GUSTS TO 45 KNOTS. ROUGH
SEAS. MODERATE SOUTHEAST SWELLS. WINDS EXPECTED TO INCREASE FURTHER
TO GALE FORCE WINDS OF 40 KNOTS WITH GUSTS TO 55 KNOTS WITH HIGH SEAS
FROM TOMORROW. MODERATE TO HEAVY SOUTHEAST SWELLS.

FOR THE REST OF FIJI WATERS:
SOUTHEAST WINDS 15 TO 20 KNOTS WITH GUSTS TO 30 KNOTS. MODERATE TO
ROUGH SEAS. MODERATE SOUTHEAST SWELLS. WINDS EXPECTED TO INCREASE TO
20 TO 25 KNOTS FROM LATER TOMORROW WITH ROUGH SEAS. MODERATE
SOUTHEAST SWELLS.

THE NEXT SPECIAL WEATHER BULLETIN FOR FIJI ON TROPICAL CYCLONE ELLA
WILL BE ISSUED AT AROUND 102000UTC OR EARLIER.

Do not use any information on this site for life or death decisions. All information is intended as supplementary to official sources. Kindly refer to your country’s official weather agency/government website for local warnings, advisories and bulletins.

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