Twenty-Se
Western Pacific
Tropical Depression · WP272026
10.5°N,
168.0°E
Moving northeast at 10 mph
Max Winds
35 mph
Pressure
1002 mb
Forecast Points
8
JMA Winds (10-min avg)
35.0 kt
JMA Pressure
1000.0 hPa
JMA (10-min average): Typhoon No. 2629
· Koguma
Plain Language Summary
At 12 PM Monday Marshall Islands time, Tropical Depression Koguma was about 125 miles north of Kwajalein, moving northeast at about 10 mph. Maximum sustained winds were 35 mph (JTWC's one-minute average).
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Forecast intensity
JTWC forecast maximum sustained winds (mph) by hour.
JTWC Warning #1 05 Oct 00:00 UTC
WTPN33 PGTW 050300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 27W (KOGUMA) WARNING NR 001//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/040851ZOCT2026//
AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.//
RMKS/
1. TROPICAL DEPRESSION 27W (KOGUMA) WARNING NR 001
03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
050000Z --- NEAR 10.5N 168.0E
MOVEMENT PAST SIX HOURS - 035 DEGREES AT 09 KTS
POSITION ACCURATE TO WITHIN 030 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 10.5N 168.0E
---
FORECASTS:
12 HRS, VALID AT:
051200Z --- 11.7N 168.0E
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
000 NM SOUTHWEST QUADRANT
055 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 345 DEG/ 07 KTS
---
24 HRS, VALID AT:
060000Z --- 13.0N 167.6E
MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
070 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 330 DEG/ 08 KTS
---
36 HRS, VALID AT:
061200Z --- 14.4N 166.8E
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 320 DEG/ 09 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
070000Z --- 15.7N 165.6E
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
VECTOR TO 60 HR POSIT: 310 DEG/ 09 KTS
---
60 HRS, VALID AT:
071200Z --- 16.9N 164.1E
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
090 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 295 DEG/ 11 KTS
---
72 HRS, VALID AT:
080000Z --- 17.8N 162.0E
MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
040 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT
100 NM SOUTHEAST QUADRANT
080 NM SOUTHWEST QUADRANT
110 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 295 DEG/ 14 KTS
---
LONG RANGE OUTLOOK:
---
96 HRS, VALID AT:
090000Z --- 19.9N 156.5E
MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT
070 NM SOUTHEAST QUADRANT
070 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT
140 NM SOUTHEAST QUADRANT
130 NM SOUTHWEST QUADRANT
150 NM NORTHWEST QUADRANT
VECTOR TO 120 HR POSIT: 300 DEG/ 14 KTS
---
120 HRS, VALID AT:
100000Z --- 22.6N 151.0E
MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT
045 NM SOUTHEAST QUADRANT
040 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT
100 NM SOUTHEAST QUADRANT
090 NM SOUTHWEST QUADRANT
100 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 190 NM NORTHEAST QUADRANT
180 NM SOUTHEAST QUADRANT
160 NM SOUTHWEST QUADRANT
190 NM NORTHWEST QUADRANT
---
REMARKS:
050300Z POSITION NEAR 10.8N 168.0E.
05OCT26. TROPICAL DEPRESSION 27W (KOGUMA), LOCATED APPROXIMATELY
109 NM NORTH OF KWAJALEIN, HAS TRACKED NORTHEASTWARD AT 09 KNOTS
OVER THE PAST SIX HOURS. MINIMUM CENTRAL PRESSURE AT 050000Z IS 1002
MB.MAXIMUM SIGNIFICANT WAVE HEIGHT AT 050000Z IS 10 FEET.
NEXT WARNINGS AT 050900Z, 051500Z, 052100Z AND 060300Z.
REFER TO TYPHOON 15E (NOLO) WARNINGS (WTPN31 PGTW)
FOR SIX-HOURLY UPDATES. REFER TO SUPER TYPHOON 26W (CHOI-WAN)
WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.
WARNINGS AT 070900Z, 071500Z, 072100Z AND 080300Z.
2. THIS CANCELS AND SUPERSEDES REF A (WTPN21 PGTW 040900).//
NNNN
Products not available for West Pacific storms
- NEXRAD radar — no radar coverage over the open West Pacific.
- Storm-surge inundation — no public storm-surge model for this basin.
- Wind-speed probabilities — JTWC does not publish them.
- Watches and warnings — issued by local agencies (PAGASA, JMA, CWA), not JTWC.
- Reconnaissance aircraft — no routine aircraft reconnaissance in the West Pacific.
- Rapid-intensification and shear diagnostics — SHIPS-based guidance is not published for this basin.
These are data-availability limits for the West Pacific basin, not omissions.
Source: U.S. Navy/Air Force Joint Typhoon Warning Center (JTWC), via the UCAR Tropical Cyclone Guidance Project. JTWC data is in the public domain. · Updated 2026-10-05 02:10 UTC · JMA analysis: Source: Japan Meteorological Agency (10-minute average winds).