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9 Nov 2024 - 00:10 EST
9 Nov 2024 - 05:10 UTC

Post-tropical Cyclone Julian at 38.1°N - 41.9°W

North Atlantic Ocean

Last observation: 02 Jun 2023 - 13:35 UTC

« 2021 Storms »

29 Aug 2021 - 30 Aug 2021

Approximately 1900 miles from the U.S. east coast


Storm images and information

NHC Storm Description:

30 Aug 2021 - 3:00 UTC ...JULIAN BECOMES AN EXTRATROPICAL CYCLONE... ...THIS IS THE LAST ADVISORY... As of 3:00 AM GMT Mon Aug 30 the center of Julian was located near 38.1, -41.9 with movement NE at 26 mph. The minimum central pressure was 995 mb with maximum sustained winds of about 60 mph.

29 Aug 2021 - 21:00 UTC ...JULIAN STRENGTHENS A LITTLE MORE... ...EXPECTED TO BECOME POST-TROPICAL ON MONDAY... As of 9:00 PM GMT Sun Aug 29 the center of Julian was located near 36.7, -44.6 with movement NE at 24 mph. The minimum central pressure was 995 mb with maximum sustained winds of about 60 mph.

29 Aug 2021 - 15:00 UTC ...TROPICAL STORM JULIAN FORMS OVER THE CENTRAL SUBTROPICAL ATLANTIC... ...EXPECTED TO BECOME POST-TROPICAL ON MONDAY... As of 11:00 AM AST Sun Aug 29 the center of Julian was located near 35.1, -46.8 with movement NE at 17 mph. The minimum central pressure was 998 mb with maximum sustained winds of about 50 mph.

29 Aug 2021 - 9:00 UTC ...DEPRESSION ACCELERATING NORTHEASTWARD... ...EXPECTED TO BECOME A TROPICAL STORM LATER TODAY... As of 5:00 AM AST Sun Aug 29 the center of Eleven was located near 34.0, -48.6 with movement NE at 15 mph. The minimum central pressure was 1009 mb with maximum sustained winds of about 35 mph.

29 Aug 2021 - 3:00 UTC ...NEW TROPICAL DEPRESSION FORMS OVER THE SUBTROPICAL CENTRAL ATLANTIC... ...EXPECTED TO BECOME A SHORT-LIVED TROPICAL STORM... As of 11:00 PM AST Sat Aug 28 the center of Eleven was located near 33.0, -49.7 with movement NE at 12 mph. The minimum central pressure was 1010 mb with maximum sustained winds of about 35 mph.

Post-tropical Cyclone Julian at 38.1°N - 41.9°W

GeoColor

True Color daytime, multispectral IR at night
30 Aug 2021 - 10:20 UTC

Last update > 1 hour

GLM FED

Lightning flash extent density over GeoColor
30 Aug 2021 - 10:46 UTC

Last update > 1 hour

Day Convection

RGB used to identify areas of rapid intensification
30 Aug 2021 - 10:30 UTC

Last update > 1 hour

Day Land Cloud

EUMETSAT Natural Color
30 Aug 2021 - 10:30 UTC

Last update > 1 hour

Night Microphysics

RGB to distinguish clouds from fog
30 Aug 2021 - 10:30 UTC

Last update > 1 hour

Air Mass RGB

RGB based on data from IR & water vapor
30 Aug 2021 - 10:30 UTC

Last update > 1 hour

Sandwich RGB

Blend combines IR band 13 with visual band 3
30 Aug 2021 - 10:30 UTC

Last update > 1 hour


Band 1

0.47 µm
Blue - Visible
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 2

0.64 µm
Red - Visible
30 Aug 2021 - 10:30 UTC

Last update > 1 hour

Band 3

0.86 µm
Veggie - Near IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 4

1.37 µm
Cirrus - Near IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 5

1.6 µm
Snow/Ice - Near IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 6

2.2 µm
Cloud Particle - Near IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 7

3.9 µm
Shortwave Window - IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 8

6.2 µm
Upper-Level Water Vapor - IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 9

6.9 µm
Mid-Level Water Vapor - IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 10

7.3 µm
Lower-level Water Vapor - IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 11

8.4 µm
Cloud Top - IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 12

9.6 µm
Ozone - IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 13

10.3 µm
Clean Longwave Window - IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 14

11.2 µm
Longwave Window - IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 15

12.3 µm
Dirty Longwave Window - IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour

Band 16

13.3 µm
CO₂ Longwave - IR
30 Aug 2021 - 10:40 UTC

Last update > 1 hour