WPAC: MALOU - Post-Tropical

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WPAC: MALOU - Post-Tropical

#1 Postby Hayabusa » Tue Oct 19, 2021 9:01 pm

Well the one beyond the Marianas got tagged first, I thought it would be the one over the Philippine sea.
98W INVEST 211020 0000 10.0N 160.0E WPAC 15 0

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Last edited by Hayabusa on Fri Oct 29, 2021 7:59 am, edited 5 times in total.
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Re: WPAC: INVEST 98W

#2 Postby Hayabusa » Tue Oct 19, 2021 9:05 pm

Euro 12Z
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Euro 18Z
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Re: WPAC: INVEST 98W

#3 Postby Hayabusa » Tue Oct 19, 2021 9:21 pm

Being tagged around this area at this time of the year something something reminds me :grrr:
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Re: WPAC: INVEST 98W

#4 Postby Hayabusa » Wed Oct 20, 2021 2:45 pm

ABPW10 PGTW 201900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR/HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
SOUTH PACIFIC OCEANS REISSUED/201900Z-210600ZOCT2021//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
A. TROPICAL CYCLONE SUMMARY: NONE.
B. TROPICAL DISTURBANCE SUMMARY:
(1) THE AREA OF CONVECTION (INVEST 98W) IS CURRENTLY
LOCATED NEAR 11.7N 154.4E, APPROXIMATELY 574NM EAST OF GUAM.
ANIMATED ENHANCED INFRARED SATELLITE IMAGERY AND A PARTIAL
ASMR2 36GHZ 201545Z PASS DEPICT FLARING CONVECTION DISPLACED
TO THE NORTHWEST OF THE LOW LEVEL CIRCULATION (LLC). ANALYSIS
INDICATES A FAVORABLE ENVIRONMENT INCREASING POLEWARD OUTFLOW,
LOW VERTICAL WIND SHEAR (05-10 KTS), AND WARM SEA SURFACE
TEMPERATURES (30-31 C). GLOBAL MODELS ARE IN GOOD AGREEMENT ON
FURTHER DEVELOPMENT AS THIS SYSTEM TRACKS WESTWARD, WITH SOME
SMALL DISPARITY BETWEEN WHETHER IT WILL REACH WARNING CRITERIA
BEFORE OR AFTER PASSING GUAM. MAXIMUM SUSTAINED SURFACE WINDS
ARE ESTIMATED AT 10-15 KNOTS. MINIMUM SEA LEVEL PRESSURE IS
ESTIMATED TO BE NEAR 1010 MB. THE POTENTIAL FOR THE DEVELOPMENT
OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS
IS UPGRADED TO LOW.


12Z
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Re: WPAC: INVEST 98W

#5 Postby Hayabusa » Fri Oct 22, 2021 3:13 pm

Back to low
ABPW10 PGTW 221500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL /HARBOR/HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND/SOUTH
PACIFIC OCEANS REISSUED/221500Z-230600ZOCT2021//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
A. TROPICAL CYCLONE SUMMARY: NONE.
B. TROPICAL DISTURBANCE SUMMARY:
(1) AN AREA OF CONVECTION (INVEST 98W) HAS PERSISTED NEAR 9.6N
143.8E, APPROXIMATELY 225 NM SOUTH-SOUTHWEST OF GUAM. ANIMATED
ENHANCED INFRARED SATELLITE IMAGERY DEPICTS A BROAD LOW-LEVEL
CIRCULATION (LLC) WITH FLARING, DISORGANIZED CONVECTION OVER THE
SOUTH AND EAST QUADRANTS. A 220635Z SSMIS 91GHZ MICROWAVE IMAGE
REVEALS A WEAKLY-DEFINED LLC. A 221034Z ASCAT-A IMAGE SHOWS A BROAD
CIRCULATION WITH 05-15 KNOT WINDS SURROUNDING A WEAK CORE. UPPER-
LEVEL ANALYSIS INDICATES A MARGINALLY FAVORABLE ENVIRONMENT WITH
WEAK EQUATORWARD OUTFLOW AND LOW VERTICAL WIND SHEAR. SEA SURFACE
TEMPERATURES OF 30C ARE CONDUCIVE FOR FURTHER DEVELOPMENT. GLOBAL
MODELS INDICATE THIS DISTURBANCE WILL GRADUALLY DEVELOP AS IT TRACKS
NORTHWESTWARD OVER THE NEXT TWO DAYS WITH MORE SIGNIFICANT
DEVELOPMENT ANTICIPATED WEST OF GUAM. MAXIMUM SUSTAINED SURFACE
WINDS ARE ESTIMATED AT 10 TO 15 KNOTS. MINIMUM SEA LEVEL PRESSURE IS
ESTIMATED TO BE NEAR 1008 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A
SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW.

12Z
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Re: WPAC: INVEST 98W

#6 Postby Weather Dude » Fri Oct 22, 2021 11:35 pm

The last couple GFS runs actually make this into a solid recurving typhoon. We'll see, typhoons in October don't mess around.
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Re: WPAC: INVEST 98W

#7 Postby Hayabusa » Sat Oct 23, 2021 12:34 am

Up to medium
ABPW10 PGTW 230600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS/230600Z-240600ZOCT2021//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
A. TROPICAL CYCLONE SUMMARY: NONE.
B. TROPICAL DISTURBANCE SUMMARY:
(1) THE AREA OF CONVECTION (INVEST 98W) PREVIOUSLY LOCATED
NEAR 9.6N 143.8E IS NOW LOCATED NEAR 11.2N 142.4E, APPROXIMATELY 189
NM SOUTHWEST OF GUAM. ANIMATED ENHANCED MUTLISPECTRAL
SATELLITE IMAGERY (MSI) DEPICTS WIDESPREAD CONVECTION IN THE
NORTHERN AND SOUTHERN SEMI-CIRCLES WRAPPING INTO A FULLY-EXPOSED,
BROAD, LOW-LEVEL CIRCULATION (LLC). ENVIRONMENTAL ANALYSIS INDICATES
FAVORABLE CONDITIONS WITH IMPROVED DUAL-CHANNEL OUTFLOW DUE TO A COL
REGION POSITIONED TO THE WEST AND AN UPPER-LEVEL TROUGH TO THE
NORTHEAST. LOW (5-15 KT) VWS AND SEA SURFACE TEMPERATURES OF 30C ARE
CONDUCIVE FOR FURTHER DEVELOPMENT. GLOBAL MODELS ARE IN AGREEMENT
THAT 98W WILL TRACK TO THE NORTH-NORTHWEST OVER THE NEXT 72 HOURS
HOWEVER, THEY ARE SPLIT IN MODELING INTENSITY WITH GFS BEING THE
MOST AGGRESSIVE, FORECASTING TROPICAL DEPRESSION STRENGTH BY TAU 36.
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 23 KNOTS.
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1007 MB. THE
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE
WITHIN THE NEXT 24 HOURS IS UPGRADED TO MEDIUM.
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Re: WPAC: Tropical Depression 'a' (98W)

#8 Postby Hayabusa » Sat Oct 23, 2021 8:23 am

Image
TD a
Issued at 2021/10/23 13:10 UTC
Analisys at 10/23 12 UTC
Category TD
Scale -
Intensity -
Center Position N11°25′(11.4°)
E140°35′(140.6°)
Direction and speed of movement WNW Slow
Central pressure 1008hPa
Maximum wind speed near the center 15m/s(30kt)
Maximum wind gust speed 23m/s(45kt)
Forecast at 10/24 12 UTC
Category TS
Intensity -
Center of probability circle N14°10′(14.2°)
E140°25′(140.4°)
Direction and speed of movement N 15km/h(7kt)
Central pressure 998hPa
Maximum wind speed near the center 18m/s(35kt)
Maximum wind gust speed 25m/s(50kt)
Radius of probability circle 150km(80NM)
Forecast at 10/25 12 UTC
Category STS
Intensity -
Center of probability circle N17°25′(17.4°)
E138°10′(138.2°)
Direction and speed of movement NNW 20km/h(10kt)
Central pressure 990hPa
Maximum wind speed near the center 25m/s(50kt)
Maximum wind gust speed 35m/s(70kt)
Radius of probability circle 240km(130NM)
Forecast at 10/26 12 UTC
Category STS
Intensity -
Center of probability circle N18°50′(18.8°)
E137°35′(137.6°)
Direction and speed of movement NNW Slow
Central pressure 980hPa
Maximum wind speed near the center 30m/s(60kt)
Maximum wind gust speed 45m/s(85kt)
Radius of probability circle 370km(200NM)
Storm warning area WIDE440km(240NM)
Forecast at 10/27 12 UTC
Category TY
Intensity Strong
Center of probability circle N20°40′(20.7°)
E137°20′(137.3°)
Direction and speed of movement N Slow
Central pressure 975hPa
Maximum wind speed near the center 35m/s(65kt)
Maximum wind gust speed 50m/s(95kt)
Radius of probability circle 520km(280NM)
Storm warning area WIDE600km(325NM)
Forecast at 10/28 12 UTC
Category TY
Intensity Strong
Center of probability circle N24°20′(24.3°)
E139°30′(139.5°)
Direction and speed of movement NNE 20km/h(10kt)
Central pressure 970hPa
Maximum wind speed near the center 35m/s(70kt)
Maximum wind gust speed 50m/s(100kt)
Radius of probability circle 700km(390NM)
Storm warning area WIDE800km(440NM)
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Re: WPAC: Tropical Depression 'a' (98W)

#9 Postby Hayabusa » Sat Oct 23, 2021 4:43 pm

TCFA
Image
WTPN21 PGTW 232130
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE FORMATION ALERT (INVEST 98W)//
RMKS/
1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN
190 NM EITHER SIDE OF A LINE FROM 10.2N 141.4E TO 18.0N 139.8E
WITHIN THE NEXT 12 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY
ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME.
WINDS IN THE AREA ARE ESTIMATED TO BE 18 TO 23 KNOTS. METSAT
IMAGERY AT 232100Z INDICATES THAT A CIRCULATION CENTER IS LOCATED
NEAR 11.4N 140.1E. THE SYSTEM IS MOVING WEST-NORTHWESTWARD AT 07
KNOTS.
2. REMARKS: THE AREA OF CONVECTION (INVEST 98W) PREVIOUSLY LOCATED
NEAR 11.2N 142.4E IS NOW LOCATED NEAR 11.4N 140.1E, APPROXIMATELY
298 NM WEST-SOUTHWEST OF GUAM. ANIMATED MULTISPECTRAL SATELLITE
IMAGERY (MSI) AND A 231857Z SSMIS 91 GHZ MICROWAVE IMAGE DEPICT DEEP
CONVECTION WRAPPING INTO A LOW LEVEL CIRCULATION CENTER (LLCC).
ENVIRONMENTAL ANALYSIS INDICATES FAVORABLE CONDITIONS FOR
DEVELOPMENT, WITH RADIAL OUTFLOW ALOFT, LOW (10-15 KTS) VERTICAL
WIND SHEAR (VWS), AND WARM (30-31 C) SEA SURFACE TEMPERATURES (SST).
NUMERICAL MODELS AGREE THAT 98W WILL TRACK NORTHWARD AS IT
INTENSIFIES OVER THE NEXT 24-36 HOURS. MAXIMUM SUSTAINED SURFACE
WINDS ARE ESTIMATED AT 18 TO 23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS
ESTIMATED TO BE NEAR 1007 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A
SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS HIGH.
3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY
242130Z.
//
NNNN
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Re: WPAC: Tropical Depression 'a' (98W)

#10 Postby Hayabusa » Sat Oct 23, 2021 4:43 pm

12Z multi
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Re: WPAC: Tropical Depression 25W

#11 Postby Hayabusa » Sat Oct 23, 2021 7:04 pm

25W TWENTYFIVE 211024 0000 12.5N 139.6E WPAC 30 1007
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Re: WPAC: Tropical Depression 25W

#12 Postby Hayabusa » Sat Oct 23, 2021 9:17 pm

Image
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Re: WPAC: Tropical Depression 25W

#13 Postby Yellow Evan » Sat Oct 23, 2021 9:46 pm

Getting close but the JTWC pulled the trigger on it too early.
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Re: WPAC: Tropical Depression 25W

#14 Postby Hayabusa » Sun Oct 24, 2021 2:45 am

Latest Euro ensemble
Image
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Re: WPAC: Tropical Depression 25W

#15 Postby Yellow Evan » Sun Oct 24, 2021 2:21 pm

TXPQ21 KNES 241810
TCSWNP

A. 25W (NONAME)

B. 24/1730Z

C. 13.6N

D. 139.2E

E. THREE/HIMAWARI-8

F. T2.0/2.0

G. IR/EIR/SWIR

H. REMARKS...THIS INTENSITY ESTIMATE WAS DERIVED USING 4 KM IR DATA. 4/10
BANDING YIELDS A DT OF 2.5. THE MET AND PT ARE 2.0 BASED ON A DEVELOPMENT
TREND OVER THE PAST 24 HOURS. FT IS BASED ON MET DUE TO THE BANDING
FEATURES APPEARING BROKEN AND NOT CLEAR CUT.

I. ADDL POSITIONS

NIL


...COVERDALE
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Re: WPAC: MALOU - Tropical Storm

#16 Postby Hayabusa » Sun Oct 24, 2021 8:15 pm

Image
WTPQ50 RJTD 250000
RSMC TROPICAL CYCLONE ADVISORY
NAME TS 2120 MALOU (2120) UPGRADED FROM TD
ANALYSIS
PSTN 250000UTC 16.1N 138.8E FAIR
MOVE NW 12KT
PRES 1002HPA
MXWD 035KT
GUST 050KT
30KT 240NM NORTHEAST 120NM SOUTHWEST
FORECAST
12HF 251200UTC 17.8N 137.9E 25NM 70%
MOVE NNW 10KT
PRES 998HPA
MXWD 040KT
GUST 060KT
24HF 260000UTC 18.2N 137.5E 35NM 70%
MOVE NW SLOWLY
PRES 992HPA
MXWD 050KT
GUST 070KT
48HF 270000UTC 19.8N 137.7E 75NM 70%
MOVE N SLOWLY
PRES 970HPA
MXWD 070KT
GUST 100KT
72HF 280000UTC 22.8N 138.9E 140NM 70%
MOVE NNE 08KT
PRES 950HPA
MXWD 085KT
GUST 120KT
96HF 290000UTC 27.9N 142.2E 230NM 70%
MOVE NNE 15KT
PRES 950HPA
MXWD 085KT
GUST 120KT
120HF 300000UTC 34.5N 150.0E 360NM 70% EXTRATROPICAL LOW =
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Re: WPAC: MALOU - Tropical Storm

#17 Postby dexterlabio » Wed Oct 27, 2021 9:53 am

This is now a typhoon.
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