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21 Nov 2024 - 07:03 EST
21 Nov 2024 - 12:03 UTC

Post-tropical Cyclone Four-E at 17.0°N - 129.4°W

North Pacific Ocean

Last observation: 22 Jul 2023 - 23:10 UTC

« 2023 Storms »

21 Jul 2023 - 22 Jul 2023


Storm images and information

NHC Storm Description:

22 Jul 2023 - 15:00 UTC ...DEPRESSION WEAKENS INTO A REMNANT LOW... ...THIS IS THE LAST ADVISORY FOR THIS SYSTEM... As of 8:00 AM PDT Sat Jul 22 the center of Four-E was located near 17.0, -129.4 with movement W at 12 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 30 mph.

22 Jul 2023 - 9:00 UTC ...DEPRESSION LIKELY TO WEAKEN TO A REMNANT LOW LATER TODAY... As of 2:00 AM PDT Sat Jul 22 the center of Four-E was located near 16.6, -128.2 with movement WNW at 15 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

22 Jul 2023 - 3:00 UTC ...POORLY ORGANIZED DEPRESSION LIMPING ACROSS THE TROPICAL EASTERN PACIFIC... As of 8:00 PM PDT Fri Jul 21 the center of Four-E was located near 16.1, -126.8 with movement WNW at 15 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

21 Jul 2023 - 21:00 UTC ...TROPICAL DEPRESSION FOUR-E BECOMING LESS ORGANIZED THIS AFTERNOON... As of 2:00 PM PDT Fri Jul 21 the center of Four-E was located near 15.8, -124.9 with movement WNW at 14 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

21 Jul 2023 - 15:00 UTC ...TROPICAL DEPRESSION FOUR-E MOVING WEST-NORTHWESTWARD... As of 8:00 AM PDT Fri Jul 21 the center of Four-E was located near 15.2, -123.6 with movement WNW at 13 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 35 mph.

21 Jul 2023 - 9:00 UTC ...NEW TROPICAL DEPRESSION FORMS... ...EXPECTED TO BE SHORT-LIVED... As of 2:00 AM PDT Fri Jul 21 the center of Four-E was located near 14.5, -122.2 with movement WNW at 10 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 35 mph.

Post-tropical Cyclone Four-E at 17.0°N - 129.4°W

GeoColor

True Color daytime, multispectral IR at night
22 Jul 2023 - 22:50 UTC

Last update > 1 hour

GLM FED

Lightning flash extent over GeoColor
22 Jul 2023 - 22:51 UTC

Last update > 1 hour

Day Convection

RGB used to identify areas of rapid intensification
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Day Night Cloud Micro Combo

Day: show phase of cloud tops; night: distinguish clouds from fog
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Air Mass RGB

RGB based on data from IR & water vapor
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Sandwich RGB

Blend combines IR band 13 with visual band 3
22 Jul 2023 - 22:40 UTC

Last update > 1 hour


Band 1

0.47 µm
Blue - Visible
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 2

0.64 µm
Red - Visible
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 3

0.86 µm
Veggie - Near IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 4

1.37 µm
Cirrus - Near IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 5

1.6 µm
Snow/Ice - Near IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 6

2.2 µm
Cloud Particle - Near IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 7

3.9 µm
Shortwave Window - IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 8

6.2 µm
Upper-Level Water Vapor - IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 9

6.9 µm
Mid-Level Water Vapor - IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 10

7.3 µm
Lower-level Water Vapor - IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 11

8.4 µm
Cloud Top - IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 12

9.6 µm
Ozone - IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 13

10.3 µm
Clean Longwave Window - IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 14

11.2 µm
Longwave Window - IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 15

12.3 µm
Dirty Longwave Window - IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 16

13.3 µm
CO₂ Longwave - IR
22 Jul 2023 - 22:40 UTC

Last update > 1 hour