15 Jun 2025 - 19:41 EDT
15 Jun 2025 - 23:41 UTC

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

North Pacific Ocean

Last observation: 11 Jun 2025 - 23:10 UTC

« Active Storms »

8 Jun 2025 - 11 Jun 2025

Links and Animation
PTC Cosme - RGB Loops
PTC Cosme - Channel Loops

Storm images and information

Post-tropical Cyclone Cosme Tropical Pacific Eastern East Pacific GOES-West - All States Download images NHC Storm Maps Auto-refresh link for storm

NHC Storm Description:

PTC Cosme - The NHC has issued its final advisory on this system. Relevant sectors and Mesoscale views are shown here for 7 days beyond the final NHC advisory for reference.

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.

PTC Cosme
Tropical Pacific
Eastern East Pacific
GOES-West - All States

GeoColor GLM Flash Extent Density Air Mass RGB Day Night Cloud Micro Combo RGB Sandwich RGB Day Convection RGB 2 7 8 13 14

GeoColor

GeoColor is a multispectral product composed of True Color (using a simulated green component) during daytime, and an Infrared product that uses bands 7 and 13 at night. During the day, the imagery looks approximately as it would when viewed with human eyes from space. At night, the blue colors represent liquid water clouds such as fog and stratus, while gray to white indicate higher ice clouds, and the city lights come from a static database derived from the VIIRS Day Night Band.

GeoColor was developed at the Cooperative Institute for Research in the Atmosphere (CIRA) and the STAR Regional and Mesoscale Meteorology Branch (RAMMB). For a full description of the algorithm, please see this article.

Please credit CIRA/NOAA when using GeoColor imagery.

NOTE: Lighted areas shown in nighttime images are not real-time depictions of city lights. The layer is derived from a compilation of JPSS VIIRS Day Night Band images and is included for orientation purposes.

• CIRA GeoColor Product Quick Guide

GeoColor GLM Flash Extent Density Air Mass RGB Sandwich RGB 2 7 8 13