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26 Nov 2022 - 15:01 EST
26 Nov 2022 - 20:01 UTC

Post-tropical Cyclone Peter at 22.1°N - 67.0°W

Last observation: 23 Sep 2021 - 10:56 UTC

North Atlantic Ocean

« 2021 Storms »

19 Sep 2021 - 23 Sep 2021

Approximately 1100 miles from the U.S. east coast


Storm images and information

NHC Storm Description:

23 Sep 2021 - 3:00 UTC ...DEPRESSION PETERS OUT... ...THIS IS THE LAST ADVISORY ON PETER... As of 11:00 PM AST Wed Sep 22 the center of Peter was located near 22.1, -67.0 with movement NNW at 5 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 30 mph.

22 Sep 2021 - 21:00 UTC ...PETER EXPECTED TO BECOME A REMNANT LOW SOON... As of 5:00 PM AST Wed Sep 22 the center of Peter was located near 21.7, -66.7 with movement NNW at 5 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

22 Sep 2021 - 15:00 UTC ...PETER BARELY HANGING ON AS A TROPICAL CYCLONE... As of 11:00 AM AST Wed Sep 22 the center of Peter was located near 21.6, -66.9 with movement NNW at 7 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

22 Sep 2021 - 9:00 UTC ...POORLY ORGANIZED PETER EXPECTED TO TURN NORTHWARD TONIGHT... As of 5:00 AM AST Wed Sep 22 the center of Peter was located near 21.5, -66.1 with movement NW at 12 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

22 Sep 2021 - 3:00 UTC ...DEPRESSION CONTINUES TO STRUGGLE WITH STRONG SHEAR... As of 11:00 PM AST Tue Sep 21 the center of Peter was located near 20.8, -65.3 with movement NW at 7 mph. The minimum central pressure was 1009 mb with maximum sustained winds of about 35 mph.

21 Sep 2021 - 21:00 UTC ...PETER NOW A TROPICAL DEPRESSION... As of 5:00 PM AST Tue Sep 21 the center of Peter was located near 20.5, -65.0 with movement WNW at 8 mph. The minimum central pressure was 1009 mb with maximum sustained winds of about 35 mph.

21 Sep 2021 - 15:00 UTC ...PETER WEAKENING AS IT PASSES BY NORTH OF PUERTO RICO... As of 11:00 AM AST Tue Sep 21 the center of Peter was located near 19.9, -64.7 with movement WNW at 9 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 40 mph.

21 Sep 2021 - 9:00 UTC ...DISORGANIZED PETER PASSING TO THE NORTH OF THE VIRGIN ISLANDS... As of 5:00 AM AST Tue Sep 21 the center of Peter was located near 19.6, -63.8 with movement W at 12 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 50 mph.

21 Sep 2021 - 3:00 UTC ...RESILIENT PETER MAINTAINS ITS STRENGTH DESPITE STRONG SHEAR... ...EXPECTED TO PASS NORTH OF THE VIRGIN ISLANDS AND PUERTO RICO ON TUESDAY... As of 11:00 PM AST Mon Sep 20 the center of Peter was located near 19.8, -62.8 with movement WNW at 12 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 50 mph.

20 Sep 2021 - 21:00 UTC ...PETER REFUSES TO SUCCUMB TO STRONG WIND SHEAR... ...STORM EXPECTED TO PASS NORTH OF THE LEEWARD ISLANDS EARLY THIS WEEK... As of 5:00 PM AST Mon Sep 20 the center of Peter was located near 20.0, -61.8 with movement WNW at 14 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 50 mph.

20 Sep 2021 - 15:00 UTC ...PETER BATTLING INCREASINGLY HOSTILE WIND SHEAR... ...TROPICAL STORM EXPECTED TO PASS NORTH OF THE LEEWARD ISLANDS EARLY THIS WEEK... As of 11:00 AM AST Mon Sep 20 the center of Peter was located near 19.5, -60.9 with movement WNW at 15 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 50 mph.

20 Sep 2021 - 9:00 UTC ...RECONNAISSANCE AIRCRAFT FINDS PETER HAS CHANGED LITTLE... ...TROPICAL STORM EXPECTED TO PASS NORTH OF THE LEEWARD ISLANDS EARLY THIS WEEK... As of 5:00 AM AST Mon Sep 20 the center of Peter was located near 19.1, -59.5 with movement WNW at 14 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 50 mph.

20 Sep 2021 - 3:00 UTC ...AIR FORCE HURRICANE HUNTERS FIND PETER A LITTLE STRONGER... ...PETER EXPECTED TO PASS NORTH OF THE LEEWARD ISLANDS EARLY THIS WEEK... As of 11:00 PM AST Sun Sep 19 the center of Peter was located near 18.6, -58.5 with movement WNW at 14 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 50 mph.

19 Sep 2021 - 21:00 UTC ...PETER FENDING OFF STRONG WIND SHEAR... ...EXPECTED TO PASS NORTH OF THE LESSER ANTILLES EARLY THIS WEEK... As of 5:00 PM AST Sun Sep 19 the center of Peter was located near 18.4, -57.8 with movement WNW at 17 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 45 mph.

19 Sep 2021 - 15:00 UTC ...DISHEVELED PETER HEADING WEST-NORTHWESTWARD... ...EXPECTED TO PASS NORTH OF THE LESSER ANTILLES EARLY THIS WEEK... As of 11:00 AM AST Sun Sep 19 the center of Peter was located near 17.6, -56.5 with movement WNW at 17 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 45 mph.

19 Sep 2021 - 13:00 UTC ...CENTER OF PETER FOUND FARTHER SOUTH AND WEST... ...STILL EXPECTED TO PASS WELL NORTH OF THE LESSER ANTILLES... As of 9:00 AM AST Sun Sep 19 the center of Peter was located near 17.6, -56.0 with movement WNW at 15 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 45 mph.

19 Sep 2021 - 9:00 UTC ...DEPRESSION BECOMES THE SIXTEENTH NAMED STORM OF THE SEASON OVER THE OPEN ATLANTIC... As of 5:00 AM AST Sun Sep 19 the center of Peter was located near 18.0, -53.5 with movement NW at 15 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 40 mph.

19 Sep 2021 - 3:00 UTC ...TROPICAL DEPRESSION FORMS EAST OF THE NORTHERN LEEWARD ISLANDS... As of 11:00 PM AST Sat Sep 18 the center of Sixteen was located near 16.4, -53.1 with movement WNW at 14 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

Post-tropical Cyclone Peter at 22.1°N - 67.0°W

GeoColor

True Color daytime, multispectral IR at night
23 Sep 2021 - 10:50 UTC

Last update > 1 hour

GLM FED

Lightning flash extent density over GeoColor
23 Sep 2021 - 10:56 UTC

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Day Convection

RGB used to identify areas of rapid intensification
23 Sep 2021 - 10:50 UTC

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Night Microphysics

RGB to distinguish clouds from fog
23 Sep 2021 - 10:50 UTC

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Sandwich RGB

Blend combines IR band 13 with visual band 3
23 Sep 2021 - 10:50 UTC

Last update > 1 hour

AirMass RGB

RGB based on data from IR & water vapor
23 Sep 2021 - 10:50 UTC

Last update > 1 hour


Band 1

0.47 µm
Blue - Visible
23 Sep 2021 - 10:50 UTC

Last update > 1 hour

Band 2

0.64 µm
Red - Visible
23 Sep 2021 - 10:50 UTC

Last update > 1 hour

Band 3

0.86 µm
Veggie - Near IR
23 Sep 2021 - 10:50 UTC

Last update > 1 hour

Band 4

1.37 µm
Cirrus - Near IR
23 Sep 2021 - 10:50 UTC

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Band 5

1.6 µm
Snow/Ice - Near IR
23 Sep 2021 - 10:50 UTC

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Band 6

2.2 µm
Cloud Particle - Near IR
23 Sep 2021 - 10:50 UTC

Last update > 1 hour

Band 7

3.9 µm
Shortwave Window - IR
23 Sep 2021 - 10:50 UTC

Last update > 1 hour

Band 8

6.2 µm
Upper-Level Water Vapor - IR
23 Sep 2021 - 10:50 UTC

Last update > 1 hour

Band 9

6.9 µm
Mid-Level Water Vapor - IR
23 Sep 2021 - 10:50 UTC

Last update > 1 hour

Band 10

7.3 µm
Lower-level Water Vapor - IR
23 Sep 2021 - 10:50 UTC

Last update > 1 hour

Band 11

8.4 µm
Cloud Top - IR
23 Sep 2021 - 10:40 UTC

Last update > 1 hour

Band 12

9.6 µm
Ozone - IR
23 Sep 2021 - 10:50 UTC

Last update > 1 hour

Band 13

10.3 µm
Clean Longwave Window - IR
23 Sep 2021 - 10:50 UTC

Last update > 1 hour

Band 14

11.2 µm
Longwave Window - IR
23 Sep 2021 - 10:40 UTC

Last update > 1 hour

Band 15

12.3 µm
Dirty Longwave Window - IR
23 Sep 2021 - 10:50 UTC

Last update > 1 hour

Band 16

13.3 µm
CO₂ Longwave - IR
23 Sep 2021 - 10:50 UTC

Last update > 1 hour