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This storm is unnamed. If the information appears to be out of date, its name may have changed, so visit the main page for the latest information.

FOUR Current Status

Current Wind Speed 35 knots / 40 MPH

Max Predicted Wind Speed 65 knots / 75 MPH at

FOUR Land Hazards

Northwest Pacific Weather Warnings
Taiwan Central Weather Bureau: no warnings
Hong Kong Observatory: no warnings

FOUR Tracker

FOUR Satellite Loop

visible satellite loop of TROPICAL STORM FOUR from wisc.edu

visible satellite loop of TROPICAL STORM FOUR from wisc.edu

FOUR Alternate Tracking Map

FOUR Spaghetti Models

Spaghetti models for FOUR can be found here:

FOUR spaghetti models page »

FOUR Watches and Warnings

TROPICAL STORM FOUR Tropical Cyclone Update

TROPICAL STORM FOUR Public Advisory

WTPN31 PGTW 021500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL STORM 04W (FOUR) WARNING NR 004//
RMKS/
1. TROPICAL STORM 04W (FOUR) WARNING NR 004    
   UPGRADED FROM TROPICAL DEPRESSION 04W
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   021200Z --- NEAR 26.2N 146.3E
     MOVEMENT PAST SIX HOURS - 320 DEGREES AT 07 KTS
     POSITION ACCURATE TO WITHIN 060 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
   RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT
                            035 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
   REPEAT POSIT: 26.2N 146.3E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   030000Z --- 27.2N 145.4E
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            050 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 340 DEG/ 06 KTS
    ---
   24 HRS, VALID AT:
   031200Z --- 28.3N 145.0E
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            020 NM SOUTHWEST QUADRANT
                            010 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            060 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 005 DEG/ 06 KTS
    ---
   36 HRS, VALID AT:
   040000Z --- 29.4N 145.1E
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            020 NM SOUTHWEST QUADRANT
                            020 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 035 DEG/ 05 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   041200Z --- 30.2N 145.8E
   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            020 NM SOUTHWEST QUADRANT
                            020 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            050 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 72 HR POSIT: 060 DEG/ 05 KTS
    ---
   72 HRS, VALID AT:
   051200Z --- 31.1N 147.7E
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 010 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            010 NM SOUTHWEST QUADRANT
                            010 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            060 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   VECTOR TO 96 HR POSIT: 030 DEG/ 05 KTS
    ---
   LONG RANGE OUTLOOK:
    ---
   96 HRS, VALID AT:
   061200Z --- 32.9N 148.9E
   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT
                            090 NM SOUTHEAST QUADRANT
                            060 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   VECTOR TO 120 HR POSIT: 005 DEG/ 06 KTS
    ---
   120 HRS, VALID AT:
   071200Z --- 35.1N 149.1E
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
                            060 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
    ---
REMARKS:
021500Z POSITION NEAR 26.5N 146.1E.
02JUL25. TROPICAL STORM 04W (FOUR), LOCATED APPROXIMATELY 226 NM
EAST-SOUTHEAST OF CHICHI JIMA, HAS TRACKED NORTHWESTWARD AT 07
KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 021200Z IS 1002 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 021200Z IS 15 FEET. NEXT WARNINGS AT
022100Z, 030300Z, 030900Z AND 031500Z.
//
NNNN

Public Advisory not available for this storm.

TROPICAL STORM FOUR Forecast Discussion

Forecast Discussion not available for this storm.

FOUR storm path from JTWC

Time Speed Location Status
35 knots 26.2, 146.3
45 knots 27.2, 145.4
50 knots 28.3, 145.0
55 knots 29.4, 145.1
60 knots 30.2, 145.8
65 knots 31.1, 147.7
60 knots 32.9, 148.9
40 knots 35.1, 149.1


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