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Tropical Cyclone DIANE Tropical Cyclone ESAMI Tropical Cyclone 12P Situation Map

Tropical Cyclone Formation

Tropical Cyclone Genesis is the technical term for the process of storm formation that leads ultimately to what are called hurricanes, typhoons, or tropical cyclones in various parts of the world.

This occurs when, in the Northern Hemisphere, the Intertropical Convergence Zone, or ITCZ, shifts northward out of the doldrums and atmospheric conditions become favorable for tropical cyclone formation after about the middle of May.

A series of low-pressure ripples develops within the ITCZ. These are known as tropical waves and progress from east to west. In the late season, they typically shift their movement toward the west-nothwest, or even northwest, after crossing 45° or 50° W longitude. Full Article

Tropical Cyclone DIANE Forecast Graphic
Tropical Cyclone DIANE Forecast Track (Joint Typhoon Warning Center)
Tropical Cyclone DIANE Storm-Centered Infrared
Tropical Cyclone DIANE Storm-Centered Infrared (Aviation Color Enhancement)
Tropical Cyclone DIANE Storm-Centered Visible
Tropical Cyclone DIANE Warning Text (JTWC)
WTXS31 PGTW 260900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 10S (DIANE) WARNING NR 004//
RMKS/
1. TROPICAL CYCLONE 10S (DIANE) WARNING NR 004    
   02 ACTIVE TROPICAL CYCLONES IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   260600Z --- NEAR 25.0S 68.3E
     MOVEMENT PAST SIX HOURS - 140 DEGREES AT 24 KTS
     POSITION ACCURATE TO WITHIN 040 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF 
     SATELLITE AND EXTRAPOLATION
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT
                            130 NM SOUTHEAST QUADRANT
                            130 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   REPEAT POSIT: 25.0S 68.3E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   261800Z --- 25.8S 70.2E
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT
                            220 NM SOUTHEAST QUADRANT
                            200 NM SOUTHWEST QUADRANT
                            120 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 140 DEG/ 04 KTS
    ---
   24 HRS, VALID AT:
   270600Z --- 26.4S 70.8E
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT
                            220 NM SOUTHEAST QUADRANT
                            220 NM SOUTHWEST QUADRANT
                            130 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 195 DEG/ 04 KTS
    ---
   36 HRS, VALID AT:
   271800Z --- 27.2S 70.6E
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
                            220 NM SOUTHEAST QUADRANT
                            200 NM SOUTHWEST QUADRANT
                            090 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 210 DEG/ 07 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   280600Z --- 28.5S 69.8E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
260900Z POSITION NEAR 25.2S 68.8E.
26JAN20. TROPICAL CYCLONE (TC) 10S (DIANE), LOCATED APPROXIMATELY 
676 NM EAST-SOUTHEAST OF PORT LOUIS, MAURITIUS, HAS TRACKED 
SOUTHEASTWARD AT 24 KNOTS (KTS) OVER THE PAST SIX HOURS. ANIMATED 
MULTISPECTRAL SATELLITE IMAGERY SHOWS PERSISTENT DEEP CONVECTION 
OVERHEAD OF A TIGHTLY-WRAPPED LOW LEVEL CIRCULATION CENTER. A 
260214Z SSMIS 37 GHZ MICROWAVE IMAGE DEPICTS THAT THE MAJORITY OF 
THE DEEP CONVECTION IS LOCATED IN THE SOUTHERN SEMICIRCLE WITH 
MINIMAL CURVED BANDING IN THE NORTHERN SEMICIRCLE. A 260342Z METOP-A 
ASCAT IMAGE PROVIDES GOOD CONFIDENCE IN THE INITIAL INTENSITY OF 45 
KTS, SHOWING SWATHS OF 40-44 KT WINDS NEAR THE SYSTEM CENTER. THE 
INITIAL INTENSITY IS SET BELOW DVORAK CURRENT INTENSITY ESTIMATES OF 
T3.5 BY PGTW, FMEE, AND KNES BASED ON THE DIRECT ASCAT PASS. TC 10S 
IS LOCATED UNDER THE NORTHERN PERIPHERY OF A BROAD UPPER-LEVEL 
TROUGH AND IS EXPERIENCING HIGH (35-40 KTS) VERTICAL WIND SHEAR. 
HOWEVER, THE SHEAR EFFECT IS SLIGHTLY MITIGATED AS THE SHEAR 
DIRECTION AND STORM MOTION ARE IN PHASE. TC 10S IS TRANSITING 
THROUGH A REGION OF MARGINAL (25-26 CELSIUS) SEA SURFACE TEMPERATURE 
(SST) WITH AN ESTABLISHED POLEWARD OUTFLOW CHANNEL WHICH IS 
CURRENTLY BEING ENHANCED BY THE TROUGH. THESE CONDITIONS HAVE 
ALLOWED TC 10S TO MAINTAIN ITS RELATIVELY WELL-FORMED STRUCTURE OVER 
THE PAST SIX HOURS. TC 10S IS TRACKING ALONG THE SOUTHERN PERIPHERY 
OF A NEAR-EQUATORIAL RIDGE TO THE NORTH. THE MARGINAL ENVIRONMENT 
WILL ALLOW THE SYSTEM TO MAINTAIN ITS CURRENT INTENSITY AS IT TRACKS 
EAST-SOUTHEASTWARD THROUGH TAU 12. AFTER THAT, TC 10S WILL SLOW AND 
GRADUALLY TURN TO A SOUTH-SOUTHWESTWARD TRACK BY TAU 48 AS A 
SUBTROPICAL RIDGE BUILDS IN TO THE EAST AND SOUTH. THROUGHOUT THE 
FORECAST PERIOD, ENVIRONMENTAL CONDITIONS ARE EXPECTED TO BECOME 
INCREASINGLY UNFAVORABLE WITH HIGHER VERTICAL WIND SHEAR (>45 KTS) 
AND COOLING SEA SURFACE TEMPERATURES (24-25 CELSIUS). THUS, TC 10S 
WILL STEADILY WEAKEN AFTER TAU 12, WITH DISSIPATION OCCURRING AROUND 
TAU 48. NUMERICAL MODEL GUIDANCE REMAINS IN GOOD AGREEMENT WITH A 
105 NM CROSS-TRACK SPREAD IN SOLUTIONS BY TAU 48. THUS, THERE IS 
HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE 
HEIGHT AT 260600Z IS 20 FEET. NEXT WARNINGS AT 262100Z AND 270900Z. 
REFER TO TROPICAL CYCLONE 11S (ESAMI) WARNINGS (WTXS32 PGTW) FOR 
UPDATES.//
NNNN
Tropical Cyclone DIANE JMV 3.0 Data (JTWC)
WTXS51 PGTW 260900    
WARNING    ATCG MIL 10S SIO 200126084512
2020012606 10S DIANE      004  02 140 24 SATL XTRP 040
T000 250S 0683E 045 R034 115 NE QD 130 SE QD 130 SW QD 080 NW QD 
T012 258S 0702E 045 R034 110 NE QD 220 SE QD 200 SW QD 120 NW QD 
T024 264S 0708E 040 R034 110 NE QD 220 SE QD 220 SW QD 130 NW QD 
T036 272S 0706E 035 R034 080 NE QD 220 SE QD 200 SW QD 090 NW QD 
T048 285S 0698E 030 
AMP
    036HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    048HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
SUBJ:  TROPICAL CYCLONE 10S (DIANE) WARNING NR 004    
1. TROPICAL CYCLONE 10S (DIANE) WARNING NR 004    
   02 ACTIVE TROPICAL CYCLONES IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   260600Z --- NEAR 25.0S 68.3E
     MOVEMENT PAST SIX HOURS - 140 DEGREES AT 24 KTS
     POSITION ACCURATE TO WITHIN 040 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF 
     SATELLITE AND EXTRAPOLATION
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT
                            130 NM SOUTHEAST QUADRANT
                            130 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   REPEAT POSIT: 25.0S 68.3E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   261800Z --- 25.8S 70.2E
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT
                            220 NM SOUTHEAST QUADRANT
                            200 NM SOUTHWEST QUADRANT
                            120 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 140 DEG/ 04 KTS
    ---
   24 HRS, VALID AT:
   270600Z --- 26.4S 70.8E
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT
                            220 NM SOUTHEAST QUADRANT
                            220 NM SOUTHWEST QUADRANT
                            130 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 195 DEG/ 04 KTS
    ---
   36 HRS, VALID AT:
   271800Z --- 27.2S 70.6E
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
                            220 NM SOUTHEAST QUADRANT
                            200 NM SOUTHWEST QUADRANT
                            090 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 210 DEG/ 07 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   280600Z --- 28.5S 69.8E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
260900Z POSITION NEAR 25.2S 68.8E.
1020012106 190S 413E  20
1020012112 195S 420E  20
1020012118 195S 428E  20
1020012200 189S 430E  20
1020012206 173S 430E  20
1020012212 167S 435E  20
1020012218 170S 448E  20
1020012300 172S 461E  25
1020012306 178S 477E  20
1020012312 181S 489E  20
1020012318 182S 503E  30
1020012400 184S 523E  30
1020012406 187S 538E  30
1020012412 191S 554E  35
1020012418 195S 571E  40
1020012500 201S 587E  45
1020012506 206S 603E  45
1020012512 214S 620E  45
1020012518 220S 640E  45
1020012600 232S 665E  50
1020012600 232S 665E  50
1020012606 250S 683E  45
NNNN

Satellite Imagery

Satellite Animations

Tropical Cyclone ESAMI Forecast Graphic
Tropical Cyclone ESAMI Forecast Track (Joint Typhoon Warning Center)
Tropical Cyclone ESAMI Storm-Centered Infrared
Tropical Cyclone ESAMI Storm-Centered Infrared (Aviation Color Enhancement)
Tropical Cyclone ESAMI Storm-Centered Visible
Tropical Cyclone ESAMI Warning Text (JTWC)
WTXS32 PGTW 260900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 11S (ESAMI) WARNING NR 004//
RMKS/
1. TROPICAL CYCLONE 11S (ESAMI) WARNING NR 004    
   02 ACTIVE TROPICAL CYCLONES IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   260600Z --- NEAR 27.9S 77.3E
     MOVEMENT PAST SIX HOURS - 130 DEGREES AT 22 KTS
     POSITION ACCURATE TO WITHIN 045 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF 
     SATELLITE AND EXTRAPOLATION
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            045 NM SOUTHWEST QUADRANT
                            045 NM NORTHWEST QUADRANT
   REPEAT POSIT: 27.9S 77.3E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   261800Z --- 29.9S 78.6E
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
                            100 NM SOUTHEAST QUADRANT
                            070 NM SOUTHWEST QUADRANT
                            090 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 140 DEG/ 07 KTS
    ---
   24 HRS, VALID AT:
   270600Z --- 30.9S 79.6E
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   RADIUS OF 034 KT WINDS - 010 NM NORTHEAST QUADRANT
                            100 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 170 DEG/ 03 KTS
    ---
   36 HRS, VALID AT:
   271800Z --- 31.4S 79.7E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
260900Z POSITION NEAR 28.4S 77.6E.
26JAN20. TROPICAL CYCLONE (TC) 11S (ESAMI), LOCATED APPROXIMATELY 
1190 NM EAST-SOUTHEAST OF PORT LOUIS, MAURITIUS, HAS TRACKED 
SOUTHEASTWARD AT 22 KNOTS (KTS) OVER THE PAST SIX HOURS. ANIMATED 
MULTISPECTRAL SATELLITE IMAGERY (MSI) REVEALS A LOW LEVEL CIRCULATION 
WITH CONVECTION BEING SHEARED TO THE NORTHEAST. A 260401Z GMI 36 GHZ 
MICROWAVE IMAGE DEPICTS A WELL-DEFINED LOW LEVEL CIRCULATION CENTER 
(LLCC) WITH CONVECTIVE BANDING WRAPPING IN FROM THE NORTH AND A 
FORMATIVE MICROWAVE EYE FEATURE. THE MSI ALONG WITH EXTRAPOLATIONS OF 
A PARTIAL 260342Z METOP-A ASCAT PASS AND THE AFOREMENTIONED MICROWAVE 
IMAGE LEND GOOD CONFIDENCE IN THE INITIAL POSITION. THE 260342Z ASCAT 
DEPICTED 35-40 KT WINDS PRESENT IN THE EASTERN QUADRANT OF THE LLCC, 
PLACING GOOD CONFIDENCE IN THE INITIAL INTENSITY OF 40 KTS. TC 11S IS 
IN AN OVERALL UNFAVORABLE ENVIRONMENT WITH HIGH (25-30 KT) VERTICAL 
WIND SHEAR (VWS), UNFAVORABLE (25-26 CELSIUS) SEA SURFACE TEMPERATURE 
(SST), AND MARGINAL OUTFLOW ALOFT. NOTABLY, THE OUTFLOW OF TC 10S HAS 
BEEN IMPACTING TC 11S, INHIBITING FURTHER DEVELOPMENT IN THE WESTERN 
SEMICIRCLE. TC 11S IS TRACKING ALONG THE PERIPHERY OF WEAK EQUATORIAL 
RIDGING TO THE NORTH AND EAST. THROUGH TAU 24, TC 11S WILL TRANSIT 
SOUTH-SOUTHEASTWARD, WEAKENING AS VWS CONTINUES TO INCREASE AND SST 
COOL BELOW 25 DEGREES CELSIUS. THESE UNFAVORABLE CONDITIONS WILL 
CAUSE THE SYSTEM TO BEGIN DISSIPATING AT TAU 24 AS IT BEGINS TO CURVE 
SOUTHWESTWARD DUE TO INTERACTION WITH A BUILDING RIDGE TO THE SOUTH. 
TC 11S WILL DISSIPATE OVER WATER BY TAU 36 AS IT INTERACTS WITH THE 
OUTER PERIPHERY OF TC 10S APPROACHING FROM THE NORTHWEST. NUMERICAL 
MODELS ARE IN FAIR AGREEMENT, LENDING GOOD CONFIDENCE TO THE JTWC 
FORECAST TRACK WHICH LIES NEAR THE MULTI-MODEL CONSENSUS. MAXIMUM 
SIGNIFICANT WAVE HEIGHT AT 260600Z IS 12 FEET. NEXT WARNINGS AT 
262100Z AND 270900Z. REFER TO TROPICAL CYCLONE 10S (DIANE) WARNINGS 
(WTXS31 PGTW) FOR UPDATES.//
NNNN
Tropical Cyclone ESAMI JMV 3.0 Data (JTWC)
WTXS52 PGTW 260900    
WARNING    ATCG MIL 11S SIO 200126082102
2020012606 11S ESAMI      004  02 130 22 SATL XTRP 045
T000 279S 0773E 040 R034 070 NE QD 040 SE QD 045 SW QD 045 NW QD 
T012 299S 0786E 035 R034 060 NE QD 100 SE QD 070 SW QD 090 NW QD 
T024 309S 0796E 035 R034 010 NE QD 100 SE QD 030 SW QD 030 NW QD 
T036 314S 0797E 030 
AMP
    024HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    036HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
SUBJ:  TROPICAL CYCLONE 11S (ESAMI) WARNING NR 004    
1. TROPICAL CYCLONE 11S (ESAMI) WARNING NR 004    
   02 ACTIVE TROPICAL CYCLONES IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   260600Z --- NEAR 27.9S 77.3E
     MOVEMENT PAST SIX HOURS - 130 DEGREES AT 22 KTS
     POSITION ACCURATE TO WITHIN 045 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF 
     SATELLITE AND EXTRAPOLATION
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            045 NM SOUTHWEST QUADRANT
                            045 NM NORTHWEST QUADRANT
   REPEAT POSIT: 27.9S 77.3E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   261800Z --- 29.9S 78.6E
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
                            100 NM SOUTHEAST QUADRANT
                            070 NM SOUTHWEST QUADRANT
                            090 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 140 DEG/ 07 KTS
    ---
   24 HRS, VALID AT:
   270600Z --- 30.9S 79.6E
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   RADIUS OF 034 KT WINDS - 010 NM NORTHEAST QUADRANT
                            100 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 170 DEG/ 03 KTS
    ---
   36 HRS, VALID AT:
   271800Z --- 31.4S 79.7E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
260900Z POSITION NEAR 28.4S 77.6E.
1120012112 198S 517E  20
1120012118 198S 528E  20
1120012200 195S 536E  20
1120012206 189S 543E  20
1120012212 189S 557E  20
1120012218 190S 570E  20
1120012300 197S 583E  20
1120012306 208S 602E  20
1120012312 212S 624E  20
1120012318 216S 634E  20
1120012400 219S 654E  30
1120012406 223S 672E  35
1120012412 228S 689E  35
1120012418 232S 706E  40
1120012500 237S 718E  45
1120012506 242S 727E  45
1120012512 248S 737E  40
1120012518 256S 746E  40
1120012600 265S 754E  40
1120012606 279S 773E  40
NNNN

Satellite Imagery

Satellite Animations

Tropical Cyclone 12P Forecast Graphic
Tropical Cyclone 12P Forecast Track (Joint Typhoon Warning Center)
Tropical Cyclone 12P Storm-Centered Infrared
Tropical Cyclone 12P Storm-Centered Infrared (Aviation Color Enhancement)
Tropical Cyclone 12P Storm-Centered Visible
Tropical Cyclone 12P Warning Text (JTWC)
WTPS31 PGTW 261500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 12P (TWELVE) WARNING NR 005//
RMKS/
1. TROPICAL CYCLONE 12P (TWELVE) WARNING NR 005    
   01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   261200Z --- NEAR 22.4S 166.4W
     MOVEMENT PAST SIX HOURS - 145 DEGREES AT 05 KTS
     POSITION ACCURATE TO WITHIN 030 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   REPEAT POSIT: 22.4S 166.4W
    ---
   FORECASTS:
   12 HRS, VALID AT:
   270000Z --- 22.7S 166.3W
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
261500Z POSITION NEAR 22.5S 166.4W.
26JAN20. TROPICAL CYCLONE (TC) 12P (TWELVE), LOCATED APPROXIMATELY 
279 NM SOUTHEAST OF NIUE, HAS TRACKED SOUTHEASTWARD AT 05 KNOTS (KTS) 
OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY 
SHOWS AN EXPOSED LOW LEVEL CIRCULATION CENTER (LLCC) WITH CONVECTION 
LOCATED TO THE EAST. BASED ON A 261200Z HIMAWARI INFRARED SATELLITE 
IMAGE SHOWING THE EXPOSED LLCC, THE INITIAL POSITION IS PLACED WITH 
HIGH CONFIDENCE. THE INITIAL INTENSITY OF 25 KNOTS IS SET WITH GOOD 
CONFIDENCE, SUPPORTED BY A 260743Z METOP-A BULLSEYE ASCAT PASS WHICH 
DEPICTS 25-29 KT WINDS AS THE SYSTEM?S HIGHEST ASSOCIATED WINDS. 
ENVIRONMENTAL ANALYSIS REVEALS UNFAVORABLE VERTICAL WIND SHEAR (25-30 
KTS), WARM SEA SURFACE TEMPERATURES (26-27 CELSIUS), AND MARGINAL 
UPPER LEVEL OUTFLOW. TC 12P IS TRACKING ALONG THE WESTERN PERIPHERY 
OF A SUBTROPICAL RIDGE LOCATED TO THE EAST AND HAS FULLY DISSIPATED. 
AS TC 12P TRACKS SOUTH-SOUTHEASTWARD, IT WILL CONTINUE TO EXPERIENCE 
UNFAVORABLE CONDITIONS. DYNAMIC MODEL GUIDANCE IS IN MODERATE 
AGREEMENT WITH GFS AND GFS ENSEMBLE AS THE NOTABLE OUTLIERS. OVERALL, 
THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. THIS IS THE 
FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR 
HI. THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. 
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 261200Z IS 12 FEET.//
NNNN
Tropical Cyclone 12P JMV 3.0 Data (JTWC)
WTPS51 PGTW 261500    
WARNING    ATCG MIL 12P SWP 200126133041
2020012612 12P TWELVE     005  01 145 05 SATL 030
T000 224S 1664W 025 
T012 227S 1663W 025 
AMP 000HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    012HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
SUBJ:  TROPICAL CYCLONE 12P (TWELVE) WARNING NR 005    
1. TROPICAL CYCLONE 12P (TWELVE) WARNING NR 005    
   01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   261200Z --- NEAR 22.4S 166.4W
     MOVEMENT PAST SIX HOURS - 145 DEGREES AT 05 KTS
     POSITION ACCURATE TO WITHIN 030 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   REPEAT POSIT: 22.4S 166.4W
    ---
   FORECASTS:
   12 HRS, VALID AT:
   270000Z --- 22.7S 166.3W
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
261500Z POSITION NEAR 22.5S 166.4W.
26JAN20. TROPICAL CYCLONE 12P (TWELVE), LOCATED APPROXIMATELY 279 NM SOUTHEAST OF NIUE, HAS TRACKED SOUTHEASTWARD AT 05 KNOTS OVER THE PAST SIX HOURS. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 261200Z IS 12 FEET.//
1220012212 143S1730W  15
1220012218 140S1725W  15
1220012300 139S1715W  15
1220012306 140S1709W  15
1220012312 141S1705W  15
1220012318 142S1700W  15
1220012400 144S1697W  15
1220012406 147S1695W  25
1220012412 152S1693W  30
1220012418 162S1692W  30
1220012500 174S1692W  30
1220012506 189S1688W  30
1220012512 203S1681W  35
1220012518 211S1674W  35
1220012600 218S1668W  35
1220012606 220S1667W  30
1220012612 224S1664W  25
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Global Tropics Hazards and Benefits Outlook
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