21 Jan 2025 - 14:43 EST
21 Jan 2025 - 19:43 UTC

Post-tropical Cyclone Greg at 12.0°N - 158.5°W

North Pacific Ocean

Last observation: 18 Aug 2023 - 11:05 UTC

« 2023 Storms »

14 Aug 2023 - 18 Aug 2023

Approximately 600 miles from Hawaii

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PTC Greg - RGB Loops
PTC Greg - Channel Loops

Storm images and information

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NHC Storm Description:

18 Aug 2023 - 3:00 UTC ...GREG BECOMES A POST-TROPICAL REMNANT LOW FAR SOUTH OF HAWAII... ...THIS WILL BE THE LAST ADVISORY... As of 5:00 PM HST Thu Aug 17 the center of Greg was located near 12.0, -158.5 with movement W at 17 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

17 Aug 2023 - 21:00 UTC ...WEAKENING GREG WILL LIKELY SOON BECOME POST-TROPICAL... As of 11:00 AM HST Thu Aug 17 the center of Greg was located near 12.2, -157.1 with movement W at 13 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

More storm history

17 Aug 2023 - 15:00 UTC ...TROPICAL STORM GREG WEAKENS AS IT MOVES WESTWARD... As of 5:00 AM HST Thu Aug 17 the center of Greg was located near 11.9, -155.6 with movement W at 13 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 40 mph.

17 Aug 2023 - 9:00 UTC ...TROPICAL STORM GREG CONTINUES TO MOVE TO THE WEST... As of 11:00 PM HST Wed Aug 16 the center of Greg was located near 12.1, -154.5 with movement W at 13 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 45 mph.

17 Aug 2023 - 3:00 UTC ...TROPICAL STORM GREG CONTINUES ON A WESTWARD PATH... As of 5:00 PM HST Wed Aug 16 the center of Greg was located near 12.1, -153.5 with movement W at 13 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 45 mph.

16 Aug 2023 - 21:00 UTC ...TROPICAL STORM GREG WEAKENS SLIGHTLY AND CONTINUES ON A WESTWARD PATH... As of 11:00 AM HST Wed Aug 16 the center of Greg was located near 11.9, -152.5 with movement W at 14 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 45 mph.

16 Aug 2023 - 15:00 UTC ...TROPICAL STORM GREG CONTINUES ON A WESTWARD PATH... As of 5:00 AM HST Wed Aug 16 the center of Greg was located near 11.8, -151.1 with movement W at 14 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 50 mph.

16 Aug 2023 - 9:00 UTC ...GREG CONTINUES TO TREK WESTWARD... As of 11:00 PM HST Tue Aug 15 the center of Greg was located near 11.8, -149.6 with movement W at 14 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 50 mph.

16 Aug 2023 - 3:00 UTC ...TROPICAL STORM GREG CONTINUES MOVING WESTWARD... As of 5:00 PM HST Tue Aug 15 the center of Greg was located near 11.5, -148.3 with movement W at 14 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 50 mph.

15 Aug 2023 - 21:00 UTC ...TROPICAL STORM GREG MOVING STEADILY WESTWARD... As of 11:00 AM HST Tue Aug 15 the center of Greg was located near 11.2, -147.2 with movement W at 14 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 50 mph.

15 Aug 2023 - 15:00 UTC ...TROPICAL STORM GREG MOVING STEADILY WESTWARD... As of 5:00 AM HST Tue Aug 15 the center of Greg was located near 11.1, -145.9 with movement W at 14 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 50 mph.

15 Aug 2023 - 9:00 UTC ...GREG STRENGTHENS SLIGHTLY AS IT CONTINUES WESTWARD... As of 11:00 PM HST Mon Aug 14 the center of Greg was located near 11.2, -144.6 with movement W at 14 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 50 mph.

15 Aug 2023 - 3:00 UTC ...LITTLE CHANGE IN GREG AS IT CONTINUES TO MOVE TO THE WEST... As of 5:00 PM HST Mon Aug 14 the center of Greg was located near 11.3, -143.1 with movement W at 12 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 45 mph.

14 Aug 2023 - 21:00 UTC ...GREG MOVES WESTWARD IN THE CENTRAL PACIFIC BASIN... As of 11:00 AM HST Mon Aug 14 the center of Greg was located near 11.3, -141.7 with movement W at 12 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 45 mph.

14 Aug 2023 - 15:00 UTC ...GREG ENTERS THE CENTRAL PACIFIC BASIN... As of 5:00 AM HST Mon Aug 14 the center of Greg was located near 11.3, -140.9 with movement W at 13 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 40 mph.

14 Aug 2023 - 9:00 UTC ...DEPRESSION STRENGTHENS INTO TROPICAL STORM GREG... ...NEXT ADVISORY WILL BE ISSUED BY THE CENTRAL PACIFIC HURRICANE CENTER... As of 11:00 PM HST Sun Aug 13 the center of Greg was located near 11.3, -139.8 with movement W at 13 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 40 mph.

14 Aug 2023 - 3:00 UTC ...TROPICAL DEPRESSION FORMS OVER THE FAR WESTERN PORTION OF THE EAST PACIFIC BASIN... As of 5:00 PM HST Sun Aug 13 the center of Eight-E was located near 11.4, -138.6 with movement WNW at 14 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.