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1 Dec 2021 - 08:09 EST
1 Dec 2021 - 13:09 UTC

Post-tropical Cyclone Kate at 28.5°N - 52.9°W

North Atlantic Ocean

« 2021 Storms »

28 Aug 2021 - 1 Sep 2021

Approximately 1500 miles from the U.S. east coast


Storm images and information

NHC Storm Description:

1 Sep 2021 - 21:00 UTC ...KATE NO LONGER HAS A WELL-DEFINED CIRCULATION... ...THIS IS THE FINAL ADVISORY... As of 5:00 PM AST Wed Sep 1 the center of Kate was located near 28.5, -52.9 with movement NNW at 15 mph. The minimum central pressure was 1012 mb with maximum sustained winds of about 30 mph.

1 Sep 2021 - 15:00 UTC ...STRUGGLING KATE NOT EXPECTED TO LAST MUCH LONGER... As of 11:00 AM AST Wed Sep 1 the center of Kate was located near 26.8, -52.3 with movement NNW at 12 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

1 Sep 2021 - 9:00 UTC ...TENACIOUS COMPACT KATE STILL HOLDING ON AS A TROPICAL CYCLONE OVER THE CENTRAL ATLANTIC... As of 5:00 AM AST Wed Sep 1 the center of Kate was located near 25.7, -51.7 with movement NNW at 9 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

1 Sep 2021 - 3:00 UTC ...KATE UNLIKELY TO LAST FOR ANY MORE THAN ANOTHER DAY OR SO... As of 11:00 PM AST Tue Aug 31 the center of Kate was located near 25.4, -51.3 with movement NNW at 10 mph. The minimum central pressure was 1009 mb with maximum sustained winds of about 30 mph.

31 Aug 2021 - 21:00 UTC ...KATE STILL A POORLY ORGANIZED DEPRESSION... As of 5:00 PM AST Tue Aug 31 the center of Kate was located near 24.6, -50.9 with movement N at 7 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

31 Aug 2021 - 15:00 UTC ...POORLY ORGANIZED KATE NOW A TROPICAL DEPRESSION... As of 11:00 AM AST Tue Aug 31 the center of Kate was located near 23.5, -50.8 with movement N at 5 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

31 Aug 2021 - 9:00 UTC ...POORLY ORGANIZED KATE MOVING SLOWLY OVER THE CENTRAL ATLANTIC... As of 5:00 AM AST Tue Aug 31 the center of Kate was located near 23.0, -50.9 with movement N at 5 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 40 mph.

30 Aug 2021 - 21:00 UTC ...KATE REMAINS A SHEARED TROPICAL CYCLONE OVER THE OPEN WATERS OF THE CENTRAL ATLANTIC... As of 5:00 PM AST Mon Aug 30 the center of Kate was located near 22.7, -50.9 with movement N at 10 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 40 mph.

30 Aug 2021 - 15:00 UTC ...DEPRESSION STRENGTHENS INTO TROPICAL STORM KATE... ...EXPECTED TO MOVE OVER THE OPEN WATERS OF THE CENTRAL ATLANTIC... As of 11:00 AM AST Mon Aug 30 the center of Kate was located near 21.5, -50.9 with movement N at 8 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 45 mph.

30 Aug 2021 - 13:30 UTC ...DEPRESSION STRENGTHENS TO A TROPICAL STORM... As of 9:30 AM AST Mon Aug 30 the center of Kate was located near 21.3, -50.9 with movement N at 8 mph. The minimum central pressure was 1003 mb with maximum sustained winds of about 45 mph.

30 Aug 2021 - 9:00 UTC ...TROPICAL DEPRESSION CONTINUES WITH LITTLE CHANGE IN INTENSITY UNDER STRONG UPPER-LEVEL WINDS... As of 5:00 AM AST Mon Aug 30 the center of Ten was located near 20.8, -50.6 with movement N at 8 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

30 Aug 2021 - 3:00 UTC ...TROPICAL DEPRESSION GETTING BLASTED BY STRONG UPPER-LEVEL WINDS... As of 11:00 PM AST Sun Aug 29 the center of Ten was located near 20.1, -50.6 with movement N at 8 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

29 Aug 2021 - 21:00 UTC ...TROPICAL DEPRESSION HEADING INTO A MORE HOSTILE ENVIRONMENT FOR THE NEXT DAY OR TWO... As of 5:00 PM AST Sun Aug 29 the center of Ten was located near 19.7, -50.4 with movement N at 12 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

29 Aug 2021 - 15:00 UTC ...TROPICAL DEPRESSION MOVING NORTHWARD OVER THE CENTRAL TROPICAL ATLANTIC... As of 11:00 AM AST Sun Aug 29 the center of Ten was located near 18.8, -50.2 with movement N at 12 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

29 Aug 2021 - 9:00 UTC ...DEPRESSION BATTLING STRONG UPPER LEVEL WINDS... ...COULD STILL BECOME A TROPICAL STORM TODAY OR TOMORROW... As of 5:00 AM AST Sun Aug 29 the center of Ten was located near 17.3, -49.8 with movement N at 10 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

29 Aug 2021 - 3:00 UTC ...DEPRESSION EXPECTED TO BECOME A TROPICAL STORM ON SUNDAY... As of 11:00 PM AST Sat Aug 28 the center of Ten was located near 16.6, -49.9 with movement N at 10 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

28 Aug 2021 - 21:00 UTC ...DEPRESSION STILL STRUGGLING WHILE MOVING NORTHWARD... As of 5:00 PM AST Sat Aug 28 the center of Ten was located near 15.6, -50.0 with movement N at 8 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

28 Aug 2021 - 15:00 UTC ...POORLY ORGANIZED DEPRESSION NOW HEADING NORTH... As of 11:00 AM AST Sat Aug 28 the center of Ten was located near 14.8, -50.1 with movement N at 8 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

28 Aug 2021 - 9:00 UTC ...NEW DEPRESSION FORMS OVER THE CENTRAL TROPICAL ATLANTIC... ...EXPECTED TO BECOME A TROPICAL STORM LATER TODAY... As of 5:00 AM AST Sat Aug 28 the center of Ten was located near 14.0, -49.9 with movement NNW at 7 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

Storm no longer tracked

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2 Sep 2021 - 04:50 UTC

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GLM FED

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Sandwich RGB

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Day Land Cloud

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AirMass RGB

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Band 1

0.47 µm
Blue - Visible
2 Sep 2021 - 04:50 UTC

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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
2 Sep 2021 - 04:50 UTC

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Band 8

6.2 µm
Upper-Level Water Vapor - IR
2 Sep 2021 - 04:50 UTC

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Band 9

6.9 µm
Mid-Level Water Vapor - IR
2 Sep 2021 - 04:50 UTC

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Band 10

7.3 µm
Lower-level Water Vapor - IR
2 Sep 2021 - 04:50 UTC

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Band 11

8.4 µm
Cloud Top - IR
2 Sep 2021 - 04:50 UTC

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Band 12

9.6 µm
Ozone - IR
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Band 13

10.3 µm
Clean Longwave Window - IR
2 Sep 2021 - 04:50 UTC

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Band 14

11.2 µm
Longwave Window - IR
2 Sep 2021 - 04:50 UTC

Last update > 1 hour

Band 15

12.3 µm
Dirty Longwave Window - IR
2 Sep 2021 - 04:50 UTC

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Band 16

13.3 µm
CO₂ Longwave - IR
2 Sep 2021 - 04:50 UTC

Last update > 1 hour