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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 If the information appears to be out of date, its name may have changed, so visit the main page for the latest information.
ONE-C Current Status
...DEPRESSION REMAINS WELL SOUTH OF THE HAWAIIAN ISLANDS...
Current Wind Speed 30 knots / 35 MPH
Max Predicted Wind Speed 50 knots / 60 MPH at
ONE-C Land Hazards
ONE-C Tracker
ONE-C Satellite Loop
ONE-C Alternate Tracking Map
ONE-C Spaghetti Models
Spaghetti models for ONE-C can be found here:
ONE-C Watches and Warnings
Tropical Depression ONE-C Tropical Cyclone Update
Tropical Depression ONE-C Public Advisory
279 WTPA31 PHFO 272130 TCPCP1 BULLETIN Tropical Depression One-C Advisory Number 3 NWS Central Pacific Hurricane Center Honolulu HI CP012025 Issued by NWS National Hurricane Center Miami FL 1100 AM HST Sun Jul 27 2025 ...DEPRESSION REMAINS WELL SOUTH OF THE HAWAIIAN ISLANDS... SUMMARY OF 1100 AM HST...2100 UTC...INFORMATION ----------------------------------------------- LOCATION...11.0N 147.4W ABOUT 995 MI...1600 KM SE OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM HST (2100 UTC), the center of Tropical Depression One-C was located near latitude 11.0 North, longitude 147.4 West. The depression is moving toward the west near 12 mph (19 km/h) and this motion is expected to continue for the next few days. On the forecast track, the system is expected to stay well south of the Hawaiian Islands. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Gradual strengthening is forecast during the next couple of days. The estimated minimum central pressure is 1008 mb (29.77 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 500 PM HST. $$ Forecaster Kelly
Public Advisory not available for this storm.
Tropical Depression ONE-C Forecast Discussion
000 WTPA41 PHFO 272035 TCDCP1 Tropical Depression One-C Discussion Number 3 NWS Central Pacific Hurricane Center Honolulu HI CP012025 Issued by NWS National Hurricane Center Miami FL 1100 AM HST Sun Jul 27 2025 The system continues to become better organized this morning, with deep convection in curved banding generally to the west of the center. Recent imagery shows that convection has been developing the last few hours near the low-level center, with some increased curvature. Subjective Dvorak satellite intensity estimates from HFO and SAB were T/2.0 this cycle. A scatterometer pass is expected shortly which should give a better idea of the surface winds. Using the Dvorak estimates, the intensity is held at 30 kt. The system is moving westward at about 270/10 kt. A westward motion is expected the next several days as the cyclone moves on the south side of a mid-level ridge. There continues to be some spread in the along track guidance, although there is high confidence on the system remaining well south of the Hawaiian islands. The NHC track forecast is similar to the previous, and lies closest to the HCCA corrected consensus aids. Environmental conditions appear favorable for some gradual strengthening the next couple of days. The hurricane regional models remain at the higher end of the guidance envelope, and the latest NHC forecast is near the previous. Beyond 48 h, a gradual weakening trend should begin as the system moves over slightly cooler sea surface temperatures, a drier airmass, and vertical wind shear is expected to increase. The gradual weakening trend will cause the system to become a remnant low by day 5, potentially even opening into a trough. FORECAST POSITIONS AND MAX WINDS INIT 27/2100Z 11.0N 147.4W 30 KT 35 MPH 12H 28/0600Z 11.1N 148.6W 35 KT 40 MPH 24H 28/1800Z 11.2N 150.4W 45 KT 50 MPH 36H 29/0600Z 11.2N 152.7W 50 KT 60 MPH 48H 29/1800Z 11.2N 155.3W 50 KT 60 MPH 60H 30/0600Z 11.5N 158.2W 45 KT 50 MPH 72H 30/1800Z 11.8N 161.6W 40 KT 45 MPH 96H 31/1800Z 12.5N 168.8W 35 KT 40 MPH 120H 01/1800Z 13.9N 176.0W 30 KT 35 MPH...POST-TROP/REMNT LOW $$ Forecaster Kelly
ONE-C storm path from NHC
| Time | Speed | Location | Status |
|---|---|---|---|
| 30 knots | 11.0, -147.4 | ||
| 35 knots | 11.1, -148.6 | ||
| 45 knots | 11.2, -150.4 | ||
| 50 knots | 11.2, -152.7 | ||
| 50 knots | 11.2, -155.3 | ||
| 45 knots | 11.5, -158.2 | ||
| 40 knots | 11.8, -161.6 | ||
| 35 knots | 12.5, -168.8 | ||
| 30 knots | 13.9, -176.0 | POST-TROPICAL CYCLONE |
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