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8 Oct 2024 - 00:56 EDT
8 Oct 2024 - 04:56 UTC

Post-tropical Cyclone Helene at 36.6°N - 87.4°W

Logan County, KY

Last observation: 29 Sep 2024 - 00:10 UTC

« 2024 Storms »

23 Sep 2024 - 28 Sep 2024


Storm images and information

NHC Storm Description:

28 Sep 2024 - 15:00 UTC No description available

28 Sep 2024 - 9:00 UTC No description available

28 Sep 2024 - 3:00 UTC No description available

27 Sep 2024 - 21:00 UTC ...HELENE STILL PRODUCING CATASTROPHIC FLOODING OVER PORTIONS OF THE SOUTHERN APPALACHIANS AND TENNESSEE VALLEY... ...FUTURE ADVISORIES WILL BE ISSUED BY THE WEATHER PREDICTION CENTER... As of 4:00 PM CDT Fri Sep 27 the center of Helene was located near 37.5, -85.5 with movement NNW at 17 mph. The minimum central pressure was 984 mb with maximum sustained winds of about 35 mph.

27 Sep 2024 - 18:00 UTC ...HELENE STILL PRODUCING HISTORIC AND CATASTROPHIC FLOODING OVER PORTIONS OF THE SOUTHEAST AND SOUTHERN APPALACHIANS... As of 2:00 PM EDT Fri Sep 27 the center of Helene was located near 36.6, -84.6 with movement NNW at 28 mph. The minimum central pressure was 982 mb with maximum sustained winds of about 35 mph.

27 Sep 2024 - 15:00 UTC ...HELENE PRODUCING HISTORIC AND CATASTROPHIC FLOODING OVER PORTIONS OF THE SOUTHEAST AND SOUTHERN APPALACHIANS... ...FLASH FLOOD EMERGENCIES IN EFFECT FOR METROPOLITAN ATLANTA, AND MUCH OF UPSTATE SOUTH CAROLINA AND WESTERN NORTH CAROLINA... As of 11:00 AM EDT Fri Sep 27 the center of Helene was located near 35.1, -83.8 with movement N at 32 mph. The minimum central pressure was 975 mb with maximum sustained winds of about 45 mph.

27 Sep 2024 - 12:00 UTC ...HELENE PRODUCING DAMAGING GUSTY WINDS AND LIFE-THREATENING FLOODING OVER PORTIONS OF THE SOUTHEAST AND SOUTHERN APPALACHIANS... ...FLASH FLOOD EMERGENCY IN EFFECT FOR METROPOLITAN ATLANTA... As of 8:00 AM EDT Fri Sep 27 the center of Helene was located near 34.2, -83.0 with movement N at 30 mph. The minimum central pressure was 972 mb with maximum sustained winds of about 60 mph.

27 Sep 2024 - 9:00 UTC ...HELENE WEAKENS TO A TROPICAL STORM AS IT MOVES FARTHER INLAND OVER GEORGIA... ...LIFE-THREATENING STORM SURGE, WINDS, AND HEAVY RAINS CONTINUE... As of 5:00 AM EDT Fri Sep 27 the center of Helene was located near 32.8, -83.0 with movement N at 30 mph. The minimum central pressure was 968 mb with maximum sustained winds of about 70 mph.

27 Sep 2024 - 8:00 UTC ...HURRICANE HELENE MOVING RAPIDLY NORTHWARD THROUGH GEORGIA... ...400 AM EDT POSITION UPDATE... As of 4:00 AM EDT Fri Sep 27 the center of Helene was located near 32.4, -83.1 with movement N at 30 mph. The minimum central pressure was 963 mb with maximum sustained winds of about 75 mph.

27 Sep 2024 - 7:00 UTC ...HURRICANE HELENE ACCELERATING NORTH-NORTHEAST THROUGH GEORGIA... ...300 AM EDT POSITION UPDATE... As of 3:00 AM EDT Fri Sep 27 the center of Helene was located near 31.9, -83.1 with movement NNE at 30 mph. The minimum central pressure was 960 mb with maximum sustained winds of about 80 mph.

27 Sep 2024 - 6:00 UTC ...HELENE WEAKENING AS IT MOVES QUICKLY NORTH-NORTHEASTWARD NEAR VALDOSTA GEORGIA... ...LIFE-THREATENING STORM SURGE, WINDS, AND HEAVY RAINS CONTINUE... As of 2:00 AM EDT Fri Sep 27 the center of Helene was located near 31.2, -83.3 with movement NNE at 26 mph. The minimum central pressure was 955 mb with maximum sustained winds of about 90 mph.

27 Sep 2024 - 5:00 UTC ...EYEWALL OF EXTREMELY DANGEROUS HURRICANE HELENE NOW MOVING INTO GEORGIA AND ACCELERATING NORTH-NORTHEAST... ...100 AM EDT POSITION UPDATE... As of 1:00 AM EDT Fri Sep 27 the center of Helene was located near 30.8, -83.5 with movement NNE at 26 mph. The minimum central pressure was 950 mb with maximum sustained winds of about 110 mph.

27 Sep 2024 - 4:00 UTC ...EYEWALL OF EXTREMELY DANGEROUS CATEGORY 4 HELENE MOVING QUICKLY INLAND OVER THE FLORIDA PANHANDLE... ...1200 AM EDT POSITION UPDATE... As of 12:00 AM EDT Fri Sep 27 the center of Helene was located near 30.3, -83.6 with movement NNE at 24 mph. The minimum central pressure was 938 mb with maximum sustained winds of about 140 mph.

27 Sep 2024 - 3:00 UTC ...HURRICANE HELENE VERY CLOSE TO MAKING LANDFALL IN THE FLORIDA BIG BEND... ...ACCOMPANIED BY A CATASTROPHIC STORM SURGE AND LIFE-THREATENING WINDS... As of 11:00 PM EDT Thu Sep 26 the center of Helene was located near 29.9, -83.9 with movement NNE at 24 mph. The minimum central pressure was 938 mb with maximum sustained winds of about 140 mph.

27 Sep 2024 - 2:00 UTC ...EYEWALL OF EXTREMELY DANGEROUS CATEGORY 4 HELENE BEGINNING TO MOVE ASHORE ALONG THE FLORIDA COAST OF THE BIG BEND... ...1000 PM EDT POSITION UPDATE... As of 10:00 PM EDT Thu Sep 26 the center of Helene was located near 29.5, -84.1 with movement NNE at 24 mph. The minimum central pressure was 939 mb with maximum sustained winds of about 140 mph.

27 Sep 2024 - 1:00 UTC ...HELENE SLIGHTLY STRONGER AS ITS EYE APPROACHES THE COAST OF THE FLORIDA BIG BEND... ...900 PM EDT POSITION UPDATE... As of 9:00 PM EDT Thu Sep 26 the center of Helene was located near 29.1, -84.2 with movement NNE at 24 mph. The minimum central pressure was 941 mb with maximum sustained winds of about 140 mph.

27 Sep 2024 - 0:00 UTC ...EXTREMELY DANGEROUS HURRICANE HELENE NEARING THE NORTHEAST GULF COAST... ...CATASTROPHIC STORM SURGE AND LIFE-THREATENING WINDS EXPECTED IN THE FLORIDA BIG BEND AREA... As of 8:00 PM EDT Thu Sep 26 the center of Helene was located near 28.7, -84.3 with movement NNE at 23 mph. The minimum central pressure was 942 mb with maximum sustained winds of about 130 mph.

26 Sep 2024 - 23:00 UTC ...EXTREMELY DANGEROUS CATEGORY 4 HELENE HEADING TOWARDS THE FLORIDA BIG BEND... ...700 PM EDT POSITION UPDATE... As of 7:00 PM EDT Thu Sep 26 the center of Helene was located near 28.3, -84.4 with movement NNE at 23 mph. The minimum central pressure was 945 mb with maximum sustained winds of about 130 mph.

26 Sep 2024 - 22:00 UTC ...HELENE CONTINUES HEADING FOR THE FLORIDA BIG BEND... ...TROPICAL STORM CONDITIONS SPREADING NORTHWARD ALONG THE WEST COAST OF FLORIDA... As of 6:00 PM EDT Thu Sep 26 the center of Helene was located near 28.0, -84.5 with movement NNE at 23 mph. The minimum central pressure was 950 mb with maximum sustained winds of about 125 mph.

26 Sep 2024 - 21:00 UTC ...HELENE IS A VERY DANGEROUS AND LARGE MAJOR HURRICANE... ...DAMAGING HURRICANE WINDS AND CATASTROPHIC STORM SURGE EXPECTED TO BEGIN IN THE FLORIDA BIG BEND THIS EVENING... As of 5:00 PM EDT Thu Sep 26 the center of Helene was located near 27.9, -84.6 with movement NNE at 23 mph. The minimum central pressure was 951 mb with maximum sustained winds of about 125 mph.

26 Sep 2024 - 20:00 UTC ...HELENE ACCELERATING TOWARD THE FLORIDA BIG BEND... ...TROPICAL STORM CONDITIONS OCCURING ACROSS MOST OF THE WEST COAST OF FLORIDA... As of 4:00 PM EDT Thu Sep 26 the center of Helene was located near 27.3, -84.7 with movement NNE at 21 mph. The minimum central pressure was 951 mb with maximum sustained winds of about 120 mph.

26 Sep 2024 - 19:00 UTC ...STORM SURGE AND WINDS INCREASING ALONG THE FLORIDA WEST COAST... ...300 PM EDT POSITION UPDATE... As of 3:00 PM EDT Thu Sep 26 the center of Helene was located near 26.9, -84.8 with movement NNE at 20 mph. The minimum central pressure was 959 mb with maximum sustained winds of about 120 mph.

26 Sep 2024 - 18:00 UTC ...HELENE ALMOST A MAJOR HURRICANE WITH ADDITIONAL STRENGTHENING FORECAST BEFORE LANDFALL IN THE FLORIDA BIG BEND... ...PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION... As of 1:00 PM CDT Thu Sep 26 the center of Helene was located near 26.4, -85.0 with movement NNE at 16 mph. The minimum central pressure was 959 mb with maximum sustained winds of about 110 mph.

26 Sep 2024 - 15:00 UTC ...HELENE STRENGTHENING AND EXPECTED TO MAKE LANDFALL IN THE FLORIDA BIG BEND THIS EVENING AS A MAJOR HURRICANE... ...PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION... As of 10:00 AM CDT Thu Sep 26 the center of Helene was located near 25.5, -85.5 with movement NNE at 14 mph. The minimum central pressure was 960 mb with maximum sustained winds of about 105 mph.

26 Sep 2024 - 12:00 UTC ...HELENE BECOMES A CATEGORY 2 HURRICANE WITH SIGNIFICANT ADDITIONAL STRENGTHENING EXPECTED BEFORE LANDFALL IN FLORIDA... ...PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION... As of 7:00 AM CDT Thu Sep 26 the center of Helene was located near 24.5, -85.9 with movement NNE at 12 mph. The minimum central pressure was 960 mb with maximum sustained winds of about 100 mph.

26 Sep 2024 - 9:00 UTC ...HELENE STRENGTHENING AND EXPECTED TO BRING CATASTROPHIC WINDS AND STORM SURGE TO THE NORTHEASTERN GULF COAST... ...PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION... As of 4:00 AM CDT Thu Sep 26 the center of Helene was located near 24.2, -86.2 with movement NNE at 12 mph. The minimum central pressure was 966 mb with maximum sustained winds of about 90 mph.

26 Sep 2024 - 6:00 UTC ...HELENE MOVING NORTHWARD AND EXPECTED TO BRING CATASTROPHIC WINDS AND STORM SURGE TO THE NORTHEASTERN GULF COAST... ...PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION... As of 1:00 AM CDT Thu Sep 26 the center of Helene was located near 23.7, -86.5 with movement N at 12 mph. The minimum central pressure was 971 mb with maximum sustained winds of about 85 mph.

26 Sep 2024 - 3:00 UTC ...HELENE EXPECTED TO BRING CATASTROPHIC WINDS AND STORM SURGES TO THE NORTHEASTERN GULF COAST... ...PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION... As of 10:00 PM CDT Wed Sep 25 the center of Helene was located near 23.1, -86.6 with movement N at 9 mph. The minimum central pressure was 972 mb with maximum sustained winds of about 85 mph.

26 Sep 2024 - 0:00 UTC ...HELENE LIKELY TO BECOME A MAJOR HURRICANE TOMORROW... ...PREPARATIONS TO PROTECT LIFE AND PROPERTY ALONG THE FLORIDA BIG BEND COAST SHOULD BE RUSHED TO COMPLETION... As of 7:00 PM CDT Wed Sep 25 the center of Helene was located near 23.0, -86.6 with movement N at 12 mph. The minimum central pressure was 974 mb with maximum sustained winds of about 85 mph.

25 Sep 2024 - 21:00 UTC ...HELENE STRENGTHENING... ...PREPARATIONS TO PROTECT LIFE AND PROPERTY FROM STORM SURGE AND DAMAGING WINDS ALONG THE FLORIDA BIG BEND COAST SHOULD BE RUSHED TO COMPLETION TODAY... As of 4:00 PM CDT Wed Sep 25 the center of Helene was located near 22.5, -86.6 with movement N at 12 mph. The minimum central pressure was 978 mb with maximum sustained winds of about 85 mph.

25 Sep 2024 - 18:00 UTC ...HELENE MOVING INTO THE SOUTHEASTERN GULF OF MEXICO... ...PREPARATIONS TO PROTECT LIFE AND PROPERTY FROM STORM SURGE AND DAMAGING WINDS ALONG THE FLORIDA BIG BEND COAST SHOULD BE RUSHED TO COMPLETION TODAY... As of 1:00 PM CDT Wed Sep 25 the center of Helene was located near 22.0, -86.4 with movement NNW at 10 mph. The minimum central pressure was 980 mb with maximum sustained winds of about 80 mph.

25 Sep 2024 - 15:00 UTC ...HELENE BECOMES A HURRICANE... ...EXPECTED TO BRING LIFE-THREATENING STORM SURGE, DAMAGING WINDS, AND FLOODING RAINS TO A LARGE PORTION OF FLORIDA AND THE SOUTHEASTERN UNITED STATES... As of 10:00 AM CDT Wed Sep 25 the center of Helene was located near 21.6, -86.3 with movement NNW at 10 mph. The minimum central pressure was 979 mb with maximum sustained winds of about 80 mph.

25 Sep 2024 - 12:00 UTC ...HELENE JUST OFFSHORE THE NORTHEASTERN COAST OF THE YUCATAN PENINSULA, CLOSE TO HURRICANE STRENGTH... As of 7:00 AM CDT Wed Sep 25 the center of Helene was located near 21.1, -86.2 with movement NW at 9 mph. The minimum central pressure was 979 mb with maximum sustained winds of about 70 mph.

25 Sep 2024 - 9:00 UTC ...HELENE STRENGTHENING AS THE CENTER APPROACHES THE NORTHEASTERN COAST OF THE YUCATAN PENINSULA... ...NEW TROPICAL STORM WATCHES AND WARNINGS FOR PORTIONS OF THE UNITED STATES... As of 4:00 AM CDT Wed Sep 25 the center of Helene was located near 20.7, -86.2 with movement NW at 9 mph. The minimum central pressure was 985 mb with maximum sustained winds of about 65 mph.

25 Sep 2024 - 6:00 UTC ...CENTER OF HELENE APPROACHING THE NORTHEASTERN COAST OF THE YUCATAN PENINSULA... As of 1:00 AM CDT Wed Sep 25 the center of Helene was located near 20.4, -85.9 with movement NW at 10 mph. The minimum central pressure was 991 mb with maximum sustained winds of about 60 mph.

25 Sep 2024 - 3:00 UTC ...HELENE EXPECTED TO STRENGTHEN RAPIDLY OVER THE GULF OF MEXICO... As of 10:00 PM CDT Tue Sep 24 the center of Helene was located near 19.9, -85.5 with movement WNW at 10 mph. The minimum central pressure was 991 mb with maximum sustained winds of about 60 mph.

25 Sep 2024 - 0:00 UTC ...HELENE STRENGTHENING... As of 8:00 PM EDT Tue Sep 24 the center of Helene was located near 19.8, -85.3 with movement WNW at 12 mph. The minimum central pressure was 991 mb with maximum sustained winds of about 60 mph.

24 Sep 2024 - 21:00 UTC ...STORM SURGE AND HURRICANE WARNINGS ISSUED FOR THE GULF COAST OF FLORIDA... ...HELENE'S LARGE SIZE WILL LIKELY CAUSE AN EXTENSIVE AREA TO BE AFFECTED BY THE STORM'S HAZARDS... As of 5:00 PM EDT Tue Sep 24 the center of Helene was located near 19.7, -84.7 with movement WNW at 12 mph. The minimum central pressure was 995 mb with maximum sustained winds of about 50 mph.

24 Sep 2024 - 18:00 UTC ...HELENE ORGANIZING OVER THE NORTHWESTERN CARIBBEAN SEA... ...HURRICANE AND STORM SURGE WATCHES REMAIN IN EFFECT FOR PORTIONS OF THE FLORIDA GULF COAST... As of 2:00 PM EDT Tue Sep 24 the center of Helene was located near 19.4, -84.5 with movement WNW at 12 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 45 mph.

24 Sep 2024 - 15:00 UTC ...TROPICAL STORM HELENE FORMS OVER THE NORTHWESTERN CARIBBEAN SEA... ...HURRICANE AND STORM SURGE WATCHES REMAIN IN EFFECT FOR PORTIONS OF THE FLORIDA GULF COAST... As of 11:00 AM EDT Tue Sep 24 the center of Helene was located near 19.5, -84.3 with movement NW at 12 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 45 mph.

24 Sep 2024 - 12:00 UTC ...HURRICANE AND STORM SURGE WATCHES IN EFFECT FOR PORTIONS OF THE FLORIDA GULF COAST... ...HURRICANE HUNTER AIRCRAFT INVESTIGATING THE DISTURBANCE... As of 8:00 AM EDT Tue Sep 24 the center of Nine was located near 19.2, -83.5 with movement NW at 9 mph. The minimum central pressure was 1001 mb with maximum sustained winds of about 35 mph.

24 Sep 2024 - 9:00 UTC ...HURRICANE AND STORM SURGE WATCHES ISSUED FOR PORTIONS OF THE FLORIDA GULF COAST... As of 5:00 AM EDT Tue Sep 24 the center of Nine was located near 18.9, -83.0 with movement NW at 8 mph. The minimum central pressure was 1001 mb with maximum sustained winds of about 35 mph.

24 Sep 2024 - 6:00 UTC ...AIR FORCE HURRICANE HUNTER AIRCRAFT EN ROUTE TO THE SYSTEM... As of 2:00 AM EDT Tue Sep 24 the center of Nine was located near 18.6, -82.8 with movement NW at 6 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 35 mph.

24 Sep 2024 - 3:00 UTC ...STORM SURGE AND TROPICAL STORM WATCHES ISSUED FOR A PORTION OF SOUTHWEST FLORIDA... As of 11:00 PM EDT Mon Sep 23 the center of Nine was located near 18.4, -82.4 with movement NNW at 6 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 35 mph.

24 Sep 2024 - 0:00 UTC ...DISTURBANCE EXPECTED TO BECOME A HURRICANE BY WEDNESDAY... As of 8:00 PM EDT Mon Sep 23 the center of Nine was located near 18.3, -82.3 with movement NNW at 7 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 35 mph.

23 Sep 2024 - 21:00 UTC ...DISTURBANCE FORECAST TO STRENGTHEN SIGNIFICANTLY DURING THE NEXT FEW DAYS... ...TROPICAL STORM WATCHES ISSUED FOR THE LOWER FLORIDA KEYS AND DRY TORTUGAS... As of 5:00 PM EDT Mon Sep 23 the center of Nine was located near 18.1, -82.2 with movement NNW at 7 mph. The minimum central pressure was 1003 mb with maximum sustained winds of about 35 mph.

23 Sep 2024 - 18:00 UTC ...AIR FORCE HURRICANE HUNTERS CURRENTLY INVESTIGATING THE DISTURBANCE... ...TROPICAL STORM WARNINGS AND HURRICANE WATCHES IN EFFECT FOR PORTIONS OF MEXICO AND CUBA... As of 2:00 PM EDT Mon Sep 23 the center of Nine was located near 17.9, -81.9 with movement N at 6 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 30 mph.

23 Sep 2024 - 15:00 UTC ...DISTURBANCE FORECAST TO STRENGTHEN OVER THE NEXT FEW DAYS... ...TROPICAL STORM WARNINGS AND HURRICANE WATCHES ISSUED FOR PORTIONS OF MEXICO AND CUBA... As of 11:00 AM EDT Mon Sep 23 the center of Nine was located near 17.6, -82.0 with movement N at 6 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 30 mph.

Post-tropical Cyclone Helene at 36.6°N - 87.4°W

GeoColor

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28 Sep 2024 - 23:40 UTC

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GLM FED

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28 Sep 2024 - 23:46 UTC

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28 Sep 2024 - 23:40 UTC

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Sandwich RGB

Blend combines IR band 13 with visual band 3
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Band 1

0.47 µm
Blue - Visible
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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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1.37 µm
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1.6 µm
Snow/Ice - Near IR
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2.2 µm
Cloud Particle - Near IR
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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
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Band 11

8.4 µm
Cloud Top - IR
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9.6 µm
Ozone - IR
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10.3 µm
Clean Longwave Window - IR
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11.2 µm
Longwave Window - IR
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12.3 µm
Dirty Longwave Window - IR
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Band 16

13.3 µm
CO₂ Longwave - IR
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