NOAA GOES Image Viewer website
27 Nov 2021 - 13:12 EST
27 Nov 2021 - 18:12 UTC

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

North Atlantic Ocean

« 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.

Storm no longer tracked

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

Night Microphysics

RGB to distinguish clouds from fog
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

Day Land Cloud

EUMETSAT Natural Color
30 Aug 2021 - 10:30 UTC

Last update > 1 hour

AirMass RGB

RGB based on data from IR & water vapor
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