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8 Dec 2021 - 20:32 EST
9 Dec 2021 - 01:32 UTC

Post-tropical Cyclone Marco at 28.8°N - 91.2°W

Near Terrebonne Parish, LA

« 2020 Storms »

20 Aug 2020 - 25 Aug 2020


Storm images and information

NHC Storm Description:

25 Aug 2020 - 9:00 UTC ...MARCO BECOMES A REMNANT LOW JUST SOUTH OF LOUISIANA... ...THIS IS THE LAST ADVISORY... As of 4:00 AM CDT Tue Aug 25 the center of Marco was located near 28.8, -91.2 with movement W at 10 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 30 mph.

25 Aug 2020 - 3:00 UTC ...MARCO WEAKENS TO A TROPICAL DEPRESSION... ...HEAVY RAIN STILL POSSIBLE TONIGHT ACROSS PORTIONS OF THE CENTRAL GULF COAST... As of 10:00 PM CDT Mon Aug 24 the center of Marco was located near 29.0, -89.8 with movement W at 9 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

24 Aug 2020 - 23:00 UTC ...MARCO MAKES LANDFALL NEAR THE MOUTH OF THE MISSISSIPPI... ...EXPECTED TO BECOME A TROPICAL DEPRESSION LATER TONIGHT... As of 6:00 PM CDT Mon Aug 24 the center of Marco was located near 29.0, -89.2 with movement WNW at 8 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 40 mph.

24 Aug 2020 - 21:00 UTC ...MARCO EXPECTED TO CONTINUE TO PRODUCE GUSTY WINDS AND HEAVY RAINFALL OVER PORTIONS OF THE NORTHERN GULF COAST THROUGH THIS EVENING... As of 4:00 PM CDT Mon Aug 24 the center of Marco was located near 29.0, -88.9 with movement NW at 7 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 40 mph.

24 Aug 2020 - 18:00 UTC ...MARCO WEAKENS... ...GUSTY WINDS AND HEAVY RAINFALL STILL POSSIBLE OVER PORTIONS OF THE NORTHERN GULF COAST THROUGH TONIGHT... As of 1:00 PM CDT Mon Aug 24 the center of Marco was located near 28.7, -88.6 with movement NW at 6 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 40 mph.

24 Aug 2020 - 15:00 UTC ...MARCO CONTINUES TO PRODUCE HEAVY RAINFALL AND GUSTY WINDS ALONG PORTIONS OF THE NORTHERN GULF COAST... As of 10:00 AM CDT Mon Aug 24 the center of Marco was located near 28.5, -88.5 with movement NNW at 8 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 50 mph.

24 Aug 2020 - 12:00 UTC ...MARCO PRODUCING HEAVY RAINFALL AND GUSTY WINDS ALONG PORTIONS OF THE NORTHERN GULF COAST... As of 7:00 AM CDT Mon Aug 24 the center of Marco was located near 28.1, -88.4 with movement NW at 10 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 50 mph.

24 Aug 2020 - 9:00 UTC ...HURRICANE WARNINGS DISCONTINUED FOR MARCO BUT DANGEROUS STORM SURGE STILL ANTICIPATED... As of 4:00 AM CDT Mon Aug 24 the center of Marco was located near 27.6, -88.2 with movement NW at 10 mph. The minimum central pressure was 1003 mb with maximum sustained winds of about 60 mph.

24 Aug 2020 - 6:00 UTC ...A WEAKER MARCO CONTINUES MOVING TO THE NORTH-NORTHWEST... As of 1:00 AM CDT Mon Aug 24 the center of Marco was located near 27.2, -87.9 with movement NNW at 12 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 65 mph.

24 Aug 2020 - 3:00 UTC ...HURRICANE HUNTERS FIND MARCO HAS WEAKENED... ...HURRICANE AND STORM SURGE WARNINGS REMAIN IN EFFECT FOR PORTIONS OF THE NORTHERN GULF COAST... As of 10:00 PM CDT Sun Aug 23 the center of Marco was located near 26.8, -87.6 with movement NNW at 12 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 70 mph.

24 Aug 2020 - 0:00 UTC ...MARCO EXPECTED TO MOVE NEAR THE LOUISIANA COAST ON MONDAY... As of 7:00 PM CDT Sun Aug 23 the center of Marco was located near 26.4, -87.6 with movement NNW at 13 mph. The minimum central pressure was 991 mb with maximum sustained winds of about 75 mph.

23 Aug 2020 - 21:00 UTC ...MARCO EXPECTED TO BRING LIFE-THREATENING STORM SURGE AND HURRICANE-FORCE WINDS ALONG PORTIONS OF THE U.S. GULF COAST MONDAY... As of 4:00 PM CDT Sun Aug 23 the center of Marco was located near 25.8, -87.8 with movement NNW at 13 mph. The minimum central pressure was 991 mb with maximum sustained winds of about 75 mph.

23 Aug 2020 - 18:00 UTC ...HURRICANE MARCO CROSSING THE CENTRAL GULF... ...LIFE-THREATENING STORM SURGE AND HURRICANE-FORCE WINDS EXPECTED ALONG PORTIONS OF THE U.S. GULF COAST MONDAY... As of 1:00 PM CDT Sun Aug 23 the center of Marco was located near 25.3, -87.4 with movement NNW at 14 mph. The minimum central pressure was 992 mb with maximum sustained winds of about 75 mph.

23 Aug 2020 - 16:30 UTC ...MARCO BECOMES A HURRICANE... ...LIFE-THREATENING STORM SURGE AND HURRICANE-FORCE WINDS EXPECTED ALONG PORTIONS OF THE U.S. GULF COAST... As of 11:30 AM CDT Sun Aug 23 the center of Marco was located near 25.0, -87.4 with movement NNW at 14 mph. The minimum central pressure was 992 mb with maximum sustained winds of about 75 mph.

23 Aug 2020 - 15:00 UTC ...MARCO EXPECTED TO BECOME A HURRICANE TODAY AS IT ENTERS THE CENTRAL GULF OF MEXICO... ...LIFE-THREATENING STORM SURGE AND HURRICANE-FORCE WINDS EXPECTED ALONG PORTIONS OF THE U.S. GULF COAST... As of 10:00 AM CDT Sun Aug 23 the center of Marco was located near 24.7, -87.3 with movement NNW at 14 mph. The minimum central pressure was 993 mb with maximum sustained winds of about 70 mph.

23 Aug 2020 - 12:00 UTC ...MARCO NEARING HURRICANE STRENGTH AS IT CROSSES THE SOUTHEASTERN GULF OF MEXICO... As of 7:00 AM CDT Sun Aug 23 the center of Marco was located near 24.2, -87.1 with movement NNW at 13 mph. The minimum central pressure was 993 mb with maximum sustained winds of about 70 mph.

23 Aug 2020 - 9:00 UTC ...HURRICANE AND STORM SURGE WARNINGS ISSUED FOR PORTIONS OF THE NORTHERN GULF COAST... As of 4:00 AM CDT Sun Aug 23 the center of Marco was located near 23.7, -87.0 with movement NNW at 13 mph. The minimum central pressure was 994 mb with maximum sustained winds of about 70 mph.

23 Aug 2020 - 6:00 UTC ...MARCO FORECAST TO BECOME A HURRICANE LATER TODAY... ...STORM SURGE AND HURRICANE WATCHES IN EFFECT FOR PORTIONS OF THE NORTHERN GULF COAST... As of 1:00 AM CDT Sun Aug 23 the center of Marco was located near 23.1, -86.6 with movement NNW at 13 mph. The minimum central pressure was 994 mb with maximum sustained winds of about 70 mph.

23 Aug 2020 - 3:00 UTC ...MARCO MOVING NORTH-NORTHWESTWARD ACROSS THE SOUTHERN GULF OF MEXICO... ...STORM SURGE AND HURRICANE WATCHES IN EFFECT FOR PORTIONS OF THE NORTHERN GULF COAST... As of 10:00 PM CDT Sat Aug 22 the center of Marco was located near 22.8, -86.3 with movement NNW at 13 mph. The minimum central pressure was 994 mb with maximum sustained winds of about 65 mph.

23 Aug 2020 - 0:00 UTC ...MARCO ENTERS THE GULF OF MEXICO... ...STORM SURGE AND HURRICANE WATCHES IN EFFECT FOR PORTIONS OF THE NORTHERN GULF COAST... As of 7:00 PM CDT Sat Aug 22 the center of Marco was located near 22.3, -86.0 with movement NNW at 13 mph. The minimum central pressure was 994 mb with maximum sustained winds of about 65 mph.

22 Aug 2020 - 21:00 UTC ...BIG CHANGES TO THIS AFTERNOON'S FORECAST FOR MARCO... ...STORM SURGE AND HURRICANE WATCHES ISSUED FOR THE NORTHERN GULF COAST... As of 4:00 PM CDT Sat Aug 22 the center of Marco was located near 21.9, -85.7 with movement NNW at 13 mph. The minimum central pressure was 992 mb with maximum sustained winds of about 65 mph.

22 Aug 2020 - 18:00 UTC ...MARCO'S CENTER MOVING THROUGH THE YUCATAN CHANNEL... As of 1:00 PM CDT Sat Aug 22 the center of Marco was located near 21.4, -85.5 with movement NNW at 12 mph. The minimum central pressure was 992 mb with maximum sustained winds of about 65 mph.

22 Aug 2020 - 15:00 UTC ...MARCO STRENGTHENING QUICKLY... ...FORECAST TO BECOME A HURRICANE LATER TODAY... As of 10:00 AM CDT Sat Aug 22 the center of Marco was located near 20.9, -85.3 with movement NNW at 12 mph. The minimum central pressure was 992 mb with maximum sustained winds of about 65 mph.

22 Aug 2020 - 12:00 UTC ...HURRICANE HUNTER AIRCRAFT FINDS MARCO CONTINUING TO STRENGTHEN... As of 7:00 AM CDT Sat Aug 22 the center of Marco was located near 20.2, -85.2 with movement NNW at 12 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 50 mph.

22 Aug 2020 - 9:00 UTC ...MARCO A LITTLE STRONGER... ...HEADING TOWARD THE NORTHEASTERN TIP OF THE YUCATAN PENINSULA... As of 4:00 AM CDT Sat Aug 22 the center of Marco was located near 19.6, -85.4 with movement NNW at 12 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 45 mph.

22 Aug 2020 - 6:00 UTC ...MARCO MOVING NORTH-NORTHWESTWARD TOWARD THE YUCATAN PENINSULA... As of 2:00 AM EDT Sat Aug 22 the center of Marco was located near 19.1, -85.2 with movement NNW at 13 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 40 mph.

22 Aug 2020 - 3:00 UTC ...TROPICAL STORM MARCO FORMS OVER THE NORTHWESTERN CARIBBEAN... ...FORECAST TO MOVE NEAR THE YUCATAN PENINSULA ON SATURDAY... As of 11:00 PM EDT Fri Aug 21 the center of Marco was located near 18.7, -84.9 with movement NNW at 13 mph. The minimum central pressure was 1003 mb with maximum sustained winds of about 40 mph.

22 Aug 2020 - 0:00 UTC ...TROPICAL DEPRESSION CONTINUES NORTHWESTWARD TOWARD THE YUCATAN PENINSULA OF MEXICO... As of 8:00 PM EDT Fri Aug 21 the center of Fourteen was located near 18.3, -84.7 with movement NW at 13 mph. The minimum central pressure was 1009 mb with maximum sustained winds of about 35 mph.

21 Aug 2020 - 21:00 UTC ...TROPICAL DEPRESSION MOVING NORTHWESTWARD TOWARD THE YUCATAN PENINSULA OF MEXICO... As of 5:00 PM EDT Fri Aug 21 the center of Fourteen was located near 17.7, -84.3 with movement NW at 13 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

21 Aug 2020 - 18:00 UTC ...TROPICAL DEPRESSION MOVING AWAY FROM THE HONDURAS COAST... As of 2:00 PM EDT Fri Aug 21 the center of Fourteen was located near 17.4, -84.1 with movement NW at 14 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

21 Aug 2020 - 15:00 UTC ...TROPICAL DEPRESSION FOURTEEN MOVING NORTHWESTWARD OVER THE NORTHWESTERN CARIBBEAN SEA... ...EXPECTED TO STRENGTHEN AS IT APPROACHES THE YUCATAN PENINSULA... As of 11:00 AM EDT Fri Aug 21 the center of Fourteen was located near 16.6, -84.1 with movement NW at 14 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

21 Aug 2020 - 12:00 UTC ...AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT FINDS THE CENTER OF TROPICAL DEPRESSION FOURTEEN JUST OFF THE NORTHEASTERN COAST OF HONDURAS... As of 8:00 AM EDT Fri Aug 21 the center of Fourteen was located near 16.2, -84.2 with movement WNW at 12 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

21 Aug 2020 - 9:00 UTC ...DEPRESSION APPROACHING THE HONDURAS/NICARAGUA BORDER COAST... As of 5:00 AM EDT Fri Aug 21 the center of Fourteen was located near 15.4, -83.1 with movement WNW at 12 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

21 Aug 2020 - 6:00 UTC ...DEPRESSION CONTINUING WEST-NORTHWESTWARD TOWARD THE HONDURAS/NICARAGUA BORDER COAST... As of 2:00 AM EDT Fri Aug 21 the center of Fourteen was located near 15.0, -82.7 with movement WNW at 14 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

21 Aug 2020 - 3:00 UTC ...DEPRESSION CLOSE TO BECOMING A TROPICAL STORM... ...HURRICANE WATCH AND TROPICAL STORM WARNING ISSUED FOR PORTIONS OF EASTERN YUCATAN PENINSULA... As of 11:00 PM EDT Thu Aug 20 the center of Fourteen was located near 14.9, -82.2 with movement WNW at 14 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

21 Aug 2020 - 0:00 UTC ...DEPRESSION SHOWING SIGNS OF GETTING BETTER ORGANIZED... ...EXPECTED TO BECOME A TROPICAL STORM ON FRIDAY... As of 8:00 PM EDT Thu Aug 20 the center of Fourteen was located near 14.7, -81.7 with movement W at 17 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

20 Aug 2020 - 21:00 UTC ...AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT FINDS THE DEPRESSION A LITTLE FARTHER SOUTH... ...TROPICAL STORM WARNINGS ISSUED FOR PORTIONS OF HONDURAS AND NICARAGUA... As of 5:00 PM EDT Thu Aug 20 the center of Fourteen was located near 14.3, -81.0 with movement W at 18 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

20 Aug 2020 - 18:00 UTC ...TROPICAL DEPRESSION MOVING WESTWARD TOWARD THE WESTERN CARIBBEAN SEA... ...HURRICANE HUNTER AIRCRAFT SCHEDULED TO INVESTIGATE THE SYSTEM THIS AFTERNOON... As of 2:00 PM EDT Thu Aug 20 the center of Fourteen was located near 15.4, -80.0 with movement W at 18 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

20 Aug 2020 - 15:00 UTC ...TROPICAL DEPRESSION FORMS OVER THE WEST-CENTRAL CARIBBEAN SEA... ...TROPICAL STORM WATCH ISSUED FOR PORTIONS OF HONDURAS... As of 11:00 AM EDT Thu Aug 20 the center of Fourteen was located near 15.1, -79.7 with movement W at 21 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.

Storm no longer tracked

GeoColor

True Color daytime, multispectral IR at night
25 Aug 2020 - 18:50 UTC

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GLM FED

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Day Convection

RGB used to identify areas of rapid intensification
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Night Microphysics

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Sandwich RGB

Multi-spectral blend combines IR band 13 with visual band 3
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Day Land Cloud

EUMETSAT Natural Color
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AirMass RGB

RGB composite based on the data from IR and WV
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Band 1

0.47 µm
Blue - Visible
25 Aug 2020 - 18:40 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
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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
25 Aug 2020 - 18:40 UTC

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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
25 Aug 2020 - 18:30 UTC

Last update > 1 hour