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8 Nov 2024 - 03:38 EST
8 Nov 2024 - 08:38 UTC

Post-tropical Cyclone Twenty-One at 13.6°N - 84.8°W

Nicaragua

Last observation: 24 Oct 2023 - 23:10 UTC

« 2023 Storms »

Tracking started: 23 Oct 2023 - 21:00 UTC


Storm images and information

NHC Storm Description:

24 Oct 2023 - 15:00 UTC ...TROPICAL DEPRESSION DISSIPATES INLAND... ...THIS IS THE LAST ADVISORY... As of 11:00 AM EDT Tue Oct 24 the center of Twenty-one was located near 13.6, -84.8 with movement WNW at 3 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 25 mph.

24 Oct 2023 - 9:00 UTC ...TROPICAL DEPRESSION PRODUCING HEAVY RAINFALL OVER NICARAGUA... As of 5:00 AM EDT Tue Oct 24 the center of Twenty-One was located near 13.1, -84.0 with movement NW at 6 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 30 mph.

24 Oct 2023 - 3:00 UTC ...CENTER OF TROPICAL DEPRESSION LOCATED NEAR THE COAST OF NICARAGUA... ...HEAVY RAINFALL REMAINS THE PRIMARY THREAT... As of 11:00 PM EDT Mon Oct 23 the center of Twenty-one was located near 12.4, -83.4 with movement NW at 5 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 30 mph.

23 Oct 2023 - 21:00 UTC ...TROPICAL DEPRESSION FORMS NEAR THE SOUTHERN COAST OF NICARAGUA... ...HEAVY RAINFALL IS THE PRIMARY THREAT... As of 5:00 PM EDT Mon Oct 23 the center of Twenty-One was located near 11.6, -83.5 with movement W at 5 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 30 mph.

Post-tropical Cyclone Twenty-One at 13.6°N - 84.8°W

GeoColor

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

Last update > 1 hour

GLM FED

Lightning flash extent over GeoColor
24 Oct 2023 - 22:51 UTC

Last update > 1 hour

Day Convection

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

Last update > 1 hour

Day Night Cloud Micro Combo

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

Last update > 1 hour

Air Mass RGB

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

Last update > 1 hour

Sandwich RGB

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

Last update > 1 hour


Band 1

0.47 µm
Blue - Visible
24 Oct 2023 - 22:40 UTC

Last update > 1 hour

Band 2

0.64 µm
Red - Visible
24 Oct 2023 - 22:40 UTC

Last update > 1 hour

Band 3

0.86 µm
Veggie - Near IR
24 Oct 2023 - 22:40 UTC

Last update > 1 hour

Band 4

1.37 µm
Cirrus - Near IR
24 Oct 2023 - 22:40 UTC

Last update > 1 hour

Band 5

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

Last update > 1 hour

Band 6

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

Last update > 1 hour

Band 7

3.9 µm
Shortwave Window - IR
24 Oct 2023 - 22:40 UTC

Last update > 1 hour

Band 8

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

Last update > 1 hour

Band 9

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

Last update > 1 hour

Band 10

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

Last update > 1 hour

Band 11

8.4 µm
Cloud Top - IR
24 Oct 2023 - 22:40 UTC

Last update > 1 hour

Band 12

9.6 µm
Ozone - IR
24 Oct 2023 - 22:40 UTC

Last update > 1 hour

Band 13

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

Last update > 1 hour

Band 14

11.2 µm
Longwave Window - IR
24 Oct 2023 - 22:40 UTC

Last update > 1 hour

Band 15

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

Last update > 1 hour

Band 16

13.3 µm
CO₂ Longwave - IR
24 Oct 2023 - 22:40 UTC

Last update > 1 hour