Tropical Storm GRANT

Updated December 23, 2025 at 06:00 UTC

Located at 12.5°S, 99.7°E

Minimum Pressure: 995 mb

Maximum Winds: 45 kt

Radius of Maximum Wind: 20 nm

Environmental Pressure: 1006 mb

Storm Radius: 150 nm

Satellite Loop Latest GFS Forecast Latest ECMWF Forecast

Current Conditions

Latest Satellite Image

Wind Radii

Sea Temperatures CRW - MeanCRW - AnomalyOISST - MeanOISST - AnomalyTCHP - MeanTCHP - Anomaly

NRL 34/37 GHz Microwave Imagery 2025-12-22 23:42:00 UTC2025-12-22 23:32:53 UTC2025-12-22 23:31:00 UTC2025-12-22 22:00:37 UTC2025-12-22 18:43:41 UTC2025-12-22 12:22:00 UTC2025-12-22 12:03:06 UTC2025-12-22 10:52:00 UTC2025-12-22 10:45:18 UTC2025-12-22 09:49:00 UTC

NRL 89 GHz Microwave Imagery 2025-12-22 23:32:53 UTC2025-12-22 22:00:37 UTC2025-12-22 18:43:41 UTC2025-12-22 12:03:06 UTC2025-12-22 10:45:18 UTC

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Forecasts

Official Forecast

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Storm History

Storm Track Raw Data

Pressure and Wind History

This page uses data from the National Hurricane Center (NHC) and Joint Typhoon Warning Center (JTWC), with best track files through the Automated Tropical Cyclone Forecast (ATCF) system. Microwave imagery courtesy of the U.S. Naval Research Laboratory.