Cyclocane

( cyclocane is a CYCLOne and hurriCANE tracker by hayley )

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NAMTHEUN Current Status

Current Wind Speed 35 knots / 40 MPH

Max Predicted Wind Speed 35 knots / 40 MPH at 2021-10-17T12:00:00.000Z

NAMTHEUN Land Hazards

Northwest Pacific Weather Warnings

Taiwan Central Weather Bureau: no warnings
Hong Kong Observatory: no warnings

NAMTHEUN Tracker

NAMTHEUN Satellite Loop

NAMTHEUN Alternate Tracking Map

NAMTHEUN Spaghetti Models

Spaghetti models for NAMTHEUN can be found here:

NAMTHEUN spaghetti models page »

NAMTHEUN Watches and Warnings

TROPICAL STORM NAMTHEUN Tropical Cyclone Update

TROPICAL STORM NAMTHEUN Public Advisory

WTPN32 PGTW 171500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL STORM 23W (NAMTHEUN) WARNING NR 031//
RMKS/
1. TROPICAL STORM 23W (NAMTHEUN) WARNING NR 031
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   171200Z --- NEAR 36.1N 167.1E
     MOVEMENT PAST SIX HOURS - 350 DEGREES AT 13 KTS
     POSITION ACCURATE TO WITHIN 030 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   BECOMING EXTRATROPICAL
   RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            090 NM NORTHWEST QUADRANT
   REPEAT POSIT: 36.1N 167.1E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   180000Z --- 39.3N 169.0E
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   EXTRATROPICAL
   RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            090 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 050 DEG/ 27 KTS
    ---
   24 HRS, VALID AT:
   181200Z --- 42.5N 174.7E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   EXTRATROPICAL
    ---
REMARKS:
171500Z POSITION NEAR 36.9N 167.6E.
17OCT21. TROPICAL STORM (TS) 23W (NAMTHEUN), LOCATED APPROXIMATELY
984 NM NORTHEAST OF MINAMI TORI SHIMA, HAS TRACKED NORTHWARD AT 13
KNOTS OVER THE PAST SIX HOURS. ALTHOUGH DEEP CONVECTION IS SPARSE,
ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS STRONG MID-
LEVEL TURNING ASSOCIATED WITH AN UPPER-LEVEL TROUGH POSITIONED OVER
THE PARTIALLY-EXPOSED LOW-LEVEL CIRCULATION. A 171017Z METOP-B MHS
89GHZ MICROWAVE IMAGE DEPICTS SHALLOW BANDING WRAPPING INTO A
DEFINED CENTER WITH EXTENSIVE DRY AIR SURROUNDING THE SYSTEM AND
ENTRAINING INTO THE SOUTH QUADRANT. A 171020Z ASCAT-B BULLSEYE IMAGE
SHOWS AN ASYMMETRIC WIND FIELD SURROUNDING A DEFINED CENTER WITH 30-
35 KNOT WINDS OVER THE EAST AND NORTH QUADRANTS. THE INITIAL
POSITION AND INTENSITY ARE BASED ON THE ASCAT IMAGE WITH HIGH
CONFIDENCE. BASED ON THE AFOREMENTIONED IMAGERY, TS 23W HAS
MAINTAINED SUBTROPICAL CHARACTERISTICS BUT IS ALSO INTERACTING WITH
THE BAROCLINIC ZONE JUST TO THE NORTH WITH COLD AIR STRATOCUMULUS
ADVECTING OVER THE WESTERN SEMICIRCLE. THUS, EXTRA-TROPICAL
TRANSITION HAS COMMENCED AND IS EXPECTED TO COMPLETE WITHIN THE NEXT
12 HOURS AS THE SYSTEM ACCELERATES NORTH-NORTHEASTWARD TO
NORTHEASTWARD. TS 23W WILL GAIN FRONTAL CHARACTERISTICS AND APPROACH
THE MIDLATITUDE JET BY TAU 12. OVERALL, THERE IS HIGH CONFIDENCE IN
THE JTWC TRACK AND INTENSITY FORECASTS. 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 171200Z IS 17 FEET.//
NNNN

Public Advisory not available for this storm.

TROPICAL STORM NAMTHEUN Forecast Discussion

Forecast Discussion not available for this storm.

NAMTHEUN storm path from JTWC

Time	Speed	Location	Status
2021-10-17T12:00:00.000Z	35 knots	36.1, 167.1
2021-10-18T00:00:00.000Z	35 knots	39.3, 169.0
2021-10-18T12:00:00.000Z	30 knots	42.5, 174.7

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