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6 Oct 2022 - 23:08 EDT
7 Oct 2022 - 03:08 UTC

Post-tropical Cyclone Gaston at 38.6°N - 38.2°W

Last observation: 26 Sep 2022 - 10:41 UTC

North Atlantic Ocean

« 2022 Storms »

20 Sep 2022 - 26 Sep 2022

Approximately 2100 miles from the U.S. east coast


Storm images and information

NHC Storm Description:

26 Sep 2022 - 3:00 UTC ...THIS IS THE LAST ADVISORY ON POST-TROPICAL GASTON... As of 3:00 AM GMT Mon Sep 26 the center of Gaston was located near 38.6, -38.2 with movement WSW at 9 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 40 mph.

25 Sep 2022 - 21:00 UTC ...GASTON WEAKENING AND SOON TO BE POST TROPICAL... As of 9:00 PM GMT Sun Sep 25 the center of Gaston was located near 39.1, -37.5 with movement W at 10 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 45 mph.

25 Sep 2022 - 15:00 UTC ...GASTON MOVING WESTWARD WITH NO CHANGE IN STRENGTH... As of 3:00 PM GMT Sun Sep 25 the center of Gaston was located near 39.4, -36.5 with movement W at 12 mph. The minimum central pressure was 997 mb with maximum sustained winds of about 50 mph.

25 Sep 2022 - 12:00 UTC ...CENTER OF GASTON REFORMS FURTHER WEST... ...TROPICAL STORM WARNINGS FOR THE AZORES HAVE BEEN DISCONTINUED... As of 12:00 PM GMT Sun Sep 25 the center of Gaston was located near 39.3, -35.8 with movement W at 10 mph. The minimum central pressure was 997 mb with maximum sustained winds of about 50 mph.

25 Sep 2022 - 9:00 UTC ...GASTON MOVING WEST-NORTHWESTWARD AWAY FROM THE AZORES... As of 9:00 AM GMT Sun Sep 25 the center of Gaston was located near 39.0, -34.5 with movement WNW at 10 mph. The minimum central pressure was 997 mb with maximum sustained winds of about 50 mph.

25 Sep 2022 - 6:00 UTC ...GASTON STILL MOVING GENERALLY WESTWARD... ...TROPICAL STORM CONDITIONS EXPECTED TO CONTINUE ACROSS THE WESTERN AZORES FOR A FEW MORE HOURS... As of 6:00 AM GMT Sun Sep 25 the center of Gaston was located near 38.8, -33.9 with movement W at 12 mph. The minimum central pressure was 997 mb with maximum sustained winds of about 50 mph.

25 Sep 2022 - 3:00 UTC ...GASTON CONTINUES WESTWARD... ...TROPICAL STORM CONDITIONS EXPECTED TO CONTINUE ACROSS THE WESTERN AZORES FOR THE NEXT SEVERAL HOURS... As of 3:00 AM GMT Sun Sep 25 the center of Gaston was located near 38.6, -33.4 with movement W at 12 mph. The minimum central pressure was 997 mb with maximum sustained winds of about 50 mph.

25 Sep 2022 - 0:00 UTC ...GASTON EXPECTED TO BRING TROPICAL STORM CONDITIONS TO THE WESTERN AZORES THROUGH THE EARLY MORNING HOURS... As of 12:00 AM GMT Sun Sep 25 the center of Gaston was located near 38.5, -32.8 with movement W at 12 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 40 mph.

24 Sep 2022 - 21:00 UTC ...GASTON CONTINUING WESTWARD... As of 9:00 PM GMT Sat Sep 24 the center of Gaston was located near 38.2, -31.8 with movement W at 12 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 40 mph.

24 Sep 2022 - 18:00 UTC ...GASTON TURNS WESTWARD... As of 6:00 PM GMT Sat Sep 24 the center of Gaston was located near 38.0, -31.0 with movement W at 7 mph. The minimum central pressure was 1001 mb with maximum sustained winds of about 45 mph.

24 Sep 2022 - 15:00 UTC ...GASTON MOVING WEST-SOUTHWESTWARD AWAY FROM THE AZORES... As of 3:00 PM GMT Sat Sep 24 the center of Gaston was located near 38.0, -30.8 with movement WSW at 9 mph. The minimum central pressure was 1001 mb with maximum sustained winds of about 45 mph.

24 Sep 2022 - 12:00 UTC ...GASTON EXPECTED TO BECOME POST-TROPICAL LATER TODAY... As of 12:00 PM GMT Sat Sep 24 the center of Gaston was located near 38.2, -30.1 with movement WSW at 7 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 50 mph.

24 Sep 2022 - 9:00 UTC ...TROPICAL STORM CONDITIONS OVER THE WESTERN AND CENTRAL AZORES SHOULD DIMINISH THIS EVENING... ...GASTON EXPECTED TO BECOME POST-TROPICAL LATER TODAY... As of 9:00 AM GMT Sat Sep 24 the center of Gaston was located near 38.6, -30.2 with movement WSW at 9 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 50 mph.

24 Sep 2022 - 6:00 UTC ...TROPICAL STORM CONDITIONS SPREADING OVER THE WESTERN AND CENTRAL AZORES... As of 6:00 AM GMT Sat Sep 24 the center of Gaston was located near 38.7, -29.7 with movement SW at 8 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 50 mph.

24 Sep 2022 - 3:00 UTC ...GASTON EXPECTED TO BRING TROPICAL STORM CONDITIONS OVER THE WESTERN AND CENTRAL AZORES TODAY... As of 3:00 AM GMT Sat Sep 24 the center of Gaston was located near 38.9, -29.5 with movement SW at 8 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 60 mph.

24 Sep 2022 - 0:00 UTC ...GASTON BRINGING GUSTY WINDS AND HEAVY RAINFALL TO THE AZORES... ...TROPICAL STORM CONDITIONS EXPECTED OVER THE WESTERN AND CENTRAL AZORES TODAY... As of 12:00 AM GMT Sat Sep 24 the center of Gaston was located near 39.1, -29.0 with movement S at 9 mph. The minimum central pressure was 995 mb with maximum sustained winds of about 60 mph.

23 Sep 2022 - 21:00 UTC ...GASTON BRINGING HEAVY RAINFALL TO THE AZORES... ...TROPICAL STORM CONDITIONS EXPECTED OVER THE WESTERN AND CENTRAL AZORES TONIGHT AND SATURDAY... As of 9:00 PM GMT Fri Sep 23 the center of Gaston was located near 39.6, -28.7 with movement S at 9 mph. The minimum central pressure was 995 mb with maximum sustained winds of about 60 mph.

23 Sep 2022 - 18:00 UTC ...GASTON MOVING TOWARDS THE CENTRAL AZORES... ...TROPICAL STORM CONDITIONS AND HEAVY RAINFALL EXPECTED OVER THE WESTERN AND CENTRAL AZORES TONIGHT AND SATURDAY... As of 6:00 PM GMT Fri Sep 23 the center of Gaston was located near 39.8, -28.5 with movement SE at 9 mph. The minimum central pressure was 995 mb with maximum sustained winds of about 65 mph.

23 Sep 2022 - 15:00 UTC ...GASTON STRENGTHENS WHILE MOVING TOWARDS THE CENTRAL AZORES... ...TROPICAL STORM CONDITIONS AND HEAVY RAINFALL EXPECTED OVER THE WESTERN AND CENTRAL AZORES TODAY AND SATURDAY... As of 3:00 PM GMT Fri Sep 23 the center of Gaston was located near 40.2, -29.1 with movement ESE at 7 mph. The minimum central pressure was 995 mb with maximum sustained winds of about 65 mph.

23 Sep 2022 - 12:00 UTC ...GASTON MOVING EAST-SOUTHEASTWARD TOWARDS THE CENTRAL AZORES... ...TROPICAL STORM CONDITIONS AND HEAVY RAINFALL EXPECTED OVER THE WESTERN AND CENTRAL AZORES TODAY AND SATURDAY... As of 12:00 PM GMT Fri Sep 23 the center of Gaston was located near 40.5, -29.2 with movement ESE at 7 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 60 mph.

23 Sep 2022 - 9:00 UTC ...TROPICAL STORM CONDITIONS AFFECTING THE WESTERNMOST AZORES ISLANDS... ...HEAVY RAINFALL EXPECTED OVER THE WEST AND CENTRAL AZORES TODAY AND SATURDAY... As of 9:00 AM GMT Fri Sep 23 the center of Gaston was located near 40.5, -29.6 with movement ESE at 9 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 60 mph.

23 Sep 2022 - 6:00 UTC ...TROPICAL STORM CONDITIONS AFFECTING THE WESTERNMOST AZORES ISLANDS... As of 6:00 AM GMT Fri Sep 23 the center of Gaston was located near 40.8, -29.9 with movement ESE at 14 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 65 mph.

23 Sep 2022 - 3:00 UTC ...TROPICAL STORM CONDITIONS AFFECTING PORTIONS OF THE AZORES... As of 3:00 AM GMT Fri Sep 23 the center of Gaston was located near 41.0, -31.0 with movement E at 12 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 65 mph.

23 Sep 2022 - 0:00 UTC ...TROPICAL STORM CONDITIONS EXPECTED OVER PORTIONS OF THE AZORES THIS MORNING... As of 12:00 AM GMT Fri Sep 23 the center of Gaston was located near 41.0, -31.4 with movement E at 17 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 65 mph.

22 Sep 2022 - 21:00 UTC ...GASTON APPROACHING THE WESTERN AZORES ISLANDS.. ...TROPICAL STORM CONDITIONS EXPECTED TO BEGIN LATER TONIGHT... As of 9:00 PM GMT Thu Sep 22 the center of Gaston was located near 41.1, -32.0 with movement ENE at 17 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 65 mph.

22 Sep 2022 - 18:00 UTC ...GASTON APPROACHING THE WESTERN AZORES ISLANDS.. ...TROPICAL STORM CONDITIONS EXPECTED TO BEGIN TONIGHT... As of 6:00 PM GMT Thu Sep 22 the center of Gaston was located near 41.1, -33.0 with movement ENE at 21 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 65 mph.

22 Sep 2022 - 15:00 UTC ...GASTON MAINTAINING ITS STRENGTH... ...TROPICAL STORM CONDITIONS EXPECTED TO BEGIN IN THE AZORES TONIGHT... As of 3:00 PM GMT Thu Sep 22 the center of Gaston was located near 40.9, -33.8 with movement ENE at 21 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 65 mph.

22 Sep 2022 - 12:00 UTC ...GASTON HEADING TOWARD THE WESTERNMOST AZORES ISLANDS... ...TROPICAL STORM CONDITIONS EXPECTED TO BEGIN TONIGHT... As of 12:00 PM GMT Thu Sep 22 the center of Gaston was located near 40.7, -34.5 with movement ENE at 17 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 65 mph.

22 Sep 2022 - 9:00 UTC ...GASTON HEADING TOWARD THE WESTERNMOST AZORES ISLANDS... ...TROPICAL STORM WARNING ISSUED FOR THE WESTERN AND CENTRAL ISLANDS... As of 9:00 AM GMT Thu Sep 22 the center of Gaston was located near 40.3, -35.4 with movement ENE at 17 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 65 mph.

22 Sep 2022 - 3:00 UTC ...GASTON MOVING EAST-NORTHEASTWARD OVER THE NORTH-CENTRAL ATLANTIC WITH NO CHANGE IN STRENGTH... As of 3:00 AM GMT Thu Sep 22 the center of Gaston was located near 39.6, -38.0 with movement ENE at 17 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 65 mph.

21 Sep 2022 - 21:00 UTC ...GASTON CONTINUING NORTHEASTWARD OVER THE NORTH-CENTRAL ATLANTIC... As of 9:00 PM GMT Wed Sep 21 the center of Gaston was located near 39.0, -40.0 with movement NE at 14 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 65 mph.

21 Sep 2022 - 15:00 UTC ...GASTON MAINTAINING ITS STRENGTH... As of 3:00 PM GMT Wed Sep 21 the center of Gaston was located near 38.3, -41.3 with movement NE at 16 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 65 mph.

21 Sep 2022 - 9:00 UTC ...GASTON STRONGER... As of 9:00 AM GMT Wed Sep 21 the center of Gaston was located near 37.5, -42.6 with movement NE at 16 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 65 mph.

21 Sep 2022 - 3:00 UTC ...GASTON STRENGTHENS SLIGHTLY OVER THE CENTRAL NORTH ATLANTIC... As of 3:00 AM GMT Wed Sep 21 the center of Gaston was located near 36.2, -43.6 with movement NNE at 18 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 50 mph.

20 Sep 2022 - 21:00 UTC ...DEPRESSION STRENGTHENS INTO TROPICAL STORM GASTON... As of 9:00 PM GMT Tue Sep 20 the center of Gaston was located near 34.7, -44.4 with movement NNE at 17 mph. The minimum central pressure was 1009 mb with maximum sustained winds of about 40 mph.

20 Sep 2022 - 15:00 UTC ...EIGHTH TROPICAL DEPRESSION OF THE SEASON FORMS OVER THE CENTRAL ATLANTIC... As of 11:00 AM AST Tue Sep 20 the center of Eight was located near 32.8, -45.7 with movement N at 10 mph. The minimum central pressure was 1013 mb with maximum sustained winds of about 35 mph.

Post-tropical Cyclone Gaston at 38.6°N - 38.2°W

GeoColor

True Color daytime, multispectral IR at night
26 Sep 2022 - 10:40 UTC

Last update > 1 hour

GLM FED

Lightning flash extent density over GeoColor
26 Sep 2022 - 10:46 UTC

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Day Convection

RGB used to identify areas of rapid intensification
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Night Microphysics

RGB to distinguish clouds from fog
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Sandwich RGB

Blend combines IR band 13 with visual band 3
26 Sep 2022 - 10:40 UTC

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AirMass RGB

RGB based on data from IR & water vapor
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Band 1

0.47 µm
Blue - Visible
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Band 2

0.64 µm
Red - Visible
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Band 3

0.86 µm
Veggie - Near IR
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Band 4

1.37 µm
Cirrus - Near IR
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Band 5

1.6 µm
Snow/Ice - Near IR
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Band 6

2.2 µm
Cloud Particle - Near IR
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Band 7

3.9 µm
Shortwave Window - IR
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Band 8

6.2 µm
Upper-Level Water Vapor - IR
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Band 9

6.9 µm
Mid-Level Water Vapor - IR
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Band 10

7.3 µm
Lower-level Water Vapor - IR
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Band 11

8.4 µm
Cloud Top - IR
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Band 12

9.6 µm
Ozone - IR
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Band 13

10.3 µm
Clean Longwave Window - IR
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Band 14

11.2 µm
Longwave Window - IR
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Band 15

12.3 µm
Dirty Longwave Window - IR
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Band 16

13.3 µm
CO₂ Longwave - IR
26 Sep 2022 - 10:40 UTC

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