9 Oct 2025 - 01:25 EDT
9 Oct 2025 - 05:25 UTC

Post-tropical Cyclone Cosme at 16.4°N - 113.7°W

North Pacific Ocean

Last observation: 11 Jun 2025 - 23:10 UTC

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8 Jun 2025 - 11 Jun 2025

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PTC Cosme - RGB Loops
PTC Cosme - Channel Loops

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NHC Storm Description:

11 Jun 2025 - 15:00 UTC ...COSME HAS BECOME A REMNANT LOW... ...THIS IS THE LAST ADVISORY... As of 8:00 AM MST Wed Jun 11 the center of Cosme was located near 16.4, -113.7 with movement ENE at 7 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

11 Jun 2025 - 9:00 UTC ...COSME FORECAST TO BECOME A REMNANT LOW LATER THIS MORNING... As of 2:00 AM MST Wed Jun 11 the center of Cosme was located near 16.2, -114.5 with movement NE at 3 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 40 mph.

More storm history

11 Jun 2025 - 3:00 UTC ...COSME FORECAST TO BECOME A REMNANT LOW ON WEDNESDAY... As of 8:00 PM MST Tue Jun 10 the center of Cosme was located near 15.9, -114.9 with movement NNE at 5 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 45 mph.

10 Jun 2025 - 21:00 UTC ...COSME CONTINUES TO WEAKEN... ...EXPECTED TO BECOME A REMNANT LOW ON WEDNESDAY... As of 21:00 UTC TUE JUN 10 2025 the center of Cosme was located near 15.8, -115.1 with movement NNW at 3 mph. The minimum central pressure was 1001 mb with maximum sustained winds of about 50 mph.

10 Jun 2025 - 15:00 UTC ...COSME BEGINNING TO WEAKEN... ...EXPECTED TO BECOME POST-TROPICAL BY WEDNESDAY... As of 8:00 AM MST Tue Jun 10 the center of Cosme was located near 15.5, -114.6 with movement NW at 3 mph. The minimum central pressure was 996 mb with maximum sustained winds of about 65 mph.

10 Jun 2025 - 9:00 UTC ...COSME HOLDING STEADY... As of 2:00 AM MST Tue Jun 10 the center of Cosme was located near 15.3, -114.5 with movement WNW at 5 mph. The minimum central pressure was 993 mb with maximum sustained winds of about 70 mph.

10 Jun 2025 - 3:00 UTC ...COSME COULD STILL BECOME A HURRICANE OVERNIGHT BEFORE WEAKENING BEGINS LATER ON TUESDAY... As of 8:00 PM MST Mon Jun 09 the center of Cosme was located near 15.2, -114.2 with movement NW at 3 mph. The minimum central pressure was 992 mb with maximum sustained winds of about 70 mph.

9 Jun 2025 - 21:00 UTC ...COSME NEAR HURRICANE STRENGTH... As of 2:00 PM MST Mon Jun 09 the center of Cosme was located near 15.0, -113.9 with movement NW at 9 mph. The minimum central pressure was 992 mb with maximum sustained winds of about 70 mph.

9 Jun 2025 - 15:00 UTC ...COSME FORECAST TO BECOME A HURRICANE LATER TODAY... As of 15:00 UTC MON JUN 09 2025 the center of Cosme was located near 14.5, -113.3 with movement WNW at 6 mph. The minimum central pressure was 994 mb with maximum sustained winds of about 65 mph.

9 Jun 2025 - 9:00 UTC ...COSME STRENGTHENS SLIGHTLY WELL OFF THE COAST OF MEXICO... As of 2:00 AM MST Mon Jun 09 the center of Cosme was located near 14.2, -112.8 with movement WNW at 9 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 50 mph.

9 Jun 2025 - 3:00 UTC ...COSME POISED TO STRENGTHEN ON MONDAY... As of 8:00 PM MST Sun Jun 08 the center of Cosme was located near 13.7, -111.9 with movement NW at 9 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 45 mph.

8 Jun 2025 - 21:00 UTC ...DEPRESSION STRENGTHENS TO TROPICAL STORM COSME... As of 21:00 UTC SUN JUN 08 2025 the center of Cosme was located near 13.3, -111.0 with movement NW at 8 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 45 mph.

8 Jun 2025 - 15:00 UTC ...TROPICAL DEPRESSION THREE-E DEVELOPS WELL SOUTHWEST OF THE COAST OF SOUTHWESTERN MEXICO... As of 8:00 AM MST Sun Jun 08 the center of Three-E was located near 12.6, -110.6 with movement NW at 8 mph. The minimum central pressure was 1001 mb with maximum sustained winds of about 35 mph.