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28 Sep 2021 - 11:44 EDT
28 Sep 2021 - 15:44 UTC

Post-tropical Cyclone Hilda at 23.1°N - 134.1°W

North Pacific Ocean


Storm images and information

NHC Storm Description:

6 Aug 2021 - 15:00 UTC ...HILDA BECOMES A REMNANT LOW... ...THIS IS THE LAST ADVISORY... As of 8:00 AM PDT Fri Aug 6 the center of Hilda was located near 23.1, -134.1 with movement WNW at 10 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 30 mph.

6 Aug 2021 - 9:00 UTC ...HILDA EXPECTED TO BECOME A REMNANT LOW LATER TODAY... As of 2:00 AM PDT Fri Aug 6 the center of Hilda was located near 22.6, -133.3 with movement WNW at 12 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 35 mph.

6 Aug 2021 - 3:00 UTC ...HILDA STILL EXPECTED TO BECOME A REMNANT LOW ON FRIDAY... As of 8:00 PM PDT Thu Aug 5 the center of Hilda was located near 22.2, -132.2 with movement NW at 13 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 35 mph.

5 Aug 2021 - 21:00 UTC ...HILDA EXPECTED TO WEAKEN INTO A REMNANT LOW BY FRIDAY... As of 2:00 PM PDT Thu Aug 5 the center of Hilda was located near 21.5, -131.2 with movement WNW at 13 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 35 mph.

5 Aug 2021 - 15:00 UTC ...HILDA WEAKENS TO A TROPICAL DEPRESSION... ...ADDITIONAL WEAKENING EXPECTED TODAY... As of 8:00 AM PDT Thu Aug 5 the center of Hilda was located near 21.0, -130.2 with movement NW at 13 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 35 mph.

5 Aug 2021 - 9:00 UTC ...HILDA STILL A TROPICAL STORM... As of 2:00 AM PDT Thu Aug 5 the center of Hilda was located near 20.1, -129.2 with movement WNW at 9 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 40 mph.

5 Aug 2021 - 3:00 UTC ...HILDA HANGS ON AS A TROPICAL STORM... ...EXPECTED TO WEAKEN ON THURSDAY... As of 8:00 PM PDT Wed Aug 4 the center of Hilda was located near 19.6, -128.7 with movement WNW at 8 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 40 mph.

4 Aug 2021 - 21:00 UTC ...HILDA BARELY HANGING ON AS A TROPICAL STORM... ...EXPECTED TO BECOME A REMNANT LOW ON THURSDAY... As of 2:00 PM PDT Wed Aug 4 the center of Hilda was located near 19.4, -128.0 with movement WNW at 9 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 40 mph.

4 Aug 2021 - 15:00 UTC ...HILDA CONTINUES TO WEAKEN... ...EXPECTED TO BECOME A REMNANT LOW TONIGHT OR ON THURSDAY... As of 8:00 AM PDT Wed Aug 4 the center of Hilda was located near 19.1, -127.4 with movement WNW at 9 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 40 mph.

4 Aug 2021 - 9:00 UTC ...HILDA WEAKENS FURTHER... As of 2:00 AM PDT Wed Aug 4 the center of Hilda was located near 18.9, -126.6 with movement WNW at 9 mph. The minimum central pressure was 1003 mb with maximum sustained winds of about 45 mph.

4 Aug 2021 - 3:00 UTC ...HILDA CONTINUES WEAKENING... As of 8:00 PM PDT Tue Aug 3 the center of Hilda was located near 18.4, -125.5 with movement NW at 8 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 50 mph.

3 Aug 2021 - 21:00 UTC ...HILDA STARTING TO SUCCUMB TO COOL WATERS... As of 2:00 PM PDT Tue Aug 3 the center of Hilda was located near 17.8, -125.0 with movement NW at 7 mph. The minimum central pressure was 996 mb with maximum sustained winds of about 60 mph.

3 Aug 2021 - 15:00 UTC ...HILDA FORECAST TO LOSE STRENGTH THIS WEEK... As of 8:00 AM PDT Tue Aug 3 the center of Hilda was located near 17.5, -124.5 with movement NW at 8 mph. The minimum central pressure was 992 mb with maximum sustained winds of about 70 mph.

3 Aug 2021 - 9:00 UTC ...HILDA WEAKENS TO A TROPICAL STORM... As of 2:00 AM PDT Tue Aug 3 the center of Hilda was located near 17.0, -123.9 with movement NW at 8 mph. The minimum central pressure was 992 mb with maximum sustained winds of about 70 mph.

3 Aug 2021 - 3:00 UTC ...HILDA STILL A HURRICANE... As of 8:00 PM PDT Mon Aug 2 the center of Hilda was located near 16.4, -123.3 with movement NW at 7 mph. The minimum central pressure was 990 mb with maximum sustained winds of about 75 mph.

2 Aug 2021 - 21:00 UTC ...HILDA HANGING ON AS A HURRICANE... As of 2:00 PM PDT Mon Aug 2 the center of Hilda was located near 15.9, -122.8 with movement NW at 7 mph. The minimum central pressure was 990 mb with maximum sustained winds of about 75 mph.

2 Aug 2021 - 15:00 UTC ...HILDA NOW MOVING NORTHWESTWARD WITH NO CHANGE IN STRENGTH... As of 8:00 AM PDT Mon Aug 2 the center of Hilda was located near 15.4, -122.6 with movement NW at 7 mph. The minimum central pressure was 988 mb with maximum sustained winds of about 80 mph.

2 Aug 2021 - 9:00 UTC ...HILDA HEADED FOR A TURN TOWARD THE NORTHWEST LATER TODAY... As of 2:00 AM PDT Mon Aug 2 the center of Hilda was located near 15.3, -122.1 with movement WNW at 8 mph. The minimum central pressure was 988 mb with maximum sustained winds of about 80 mph.

2 Aug 2021 - 3:00 UTC ...HILDA WEAKENS SLIGHTLY... As of 8:00 PM PDT Sun Aug 1 the center of Hilda was located near 15.1, -121.6 with movement WNW at 9 mph. The minimum central pressure was 988 mb with maximum sustained winds of about 80 mph.

1 Aug 2021 - 21:00 UTC ...HILDA HANGING ONTO 85-MPH WINDS... ...EXPECTED TO WEAKEN ON MONDAY... As of 2:00 PM PDT Sun Aug 1 the center of Hilda was located near 14.8, -120.8 with movement WNW at 8 mph. The minimum central pressure was 985 mb with maximum sustained winds of about 85 mph.

1 Aug 2021 - 15:00 UTC ...HILDA IN NO HURRY AS IT MOVES SLOWLY WEST-NORTHWESTWARD... As of 8:00 AM PDT Sun Aug 1 the center of Hilda was located near 14.6, -120.2 with movement WNW at 8 mph. The minimum central pressure was 985 mb with maximum sustained winds of about 85 mph.

1 Aug 2021 - 9:00 UTC ...HILDA'S STRENGTHENING COMES TO A HALT... As of 2:00 AM PDT Sun Aug 1 the center of Hilda was located near 14.5, -119.6 with movement WNW at 10 mph. The minimum central pressure was 985 mb with maximum sustained winds of about 85 mph.

1 Aug 2021 - 3:00 UTC ...HILDA BECOMES A HURRICANE... As of 8:00 PM PDT Sat Jul 31 the center of Hilda was located near 14.3, -118.7 with movement WNW at 10 mph. The minimum central pressure was 985 mb with maximum sustained winds of about 85 mph.

31 Jul 2021 - 21:00 UTC ...HILDA EXPECTED TO BE A HURRICANE VERY SOON... As of 2:00 PM PDT Sat Jul 31 the center of Hilda was located near 14.1, -117.9 with movement WNW at 14 mph. The minimum central pressure was 994 mb with maximum sustained winds of about 70 mph.

31 Jul 2021 - 15:00 UTC ...HILDA STRENGTHENING QUICKLY... ...ALMOST A HURRICANE... As of 8:00 AM PDT Sat Jul 31 the center of Hilda was located near 13.7, -116.7 with movement WNW at 13 mph. The minimum central pressure was 994 mb with maximum sustained winds of about 70 mph.

31 Jul 2021 - 9:00 UTC ...HILDA STRENGTHENING... ...FORECAST TO BECOME A HURRICANE BY TONIGHT OR EARLY SUNDAY... As of 2:00 AM PDT Sat Jul 31 the center of Hilda was located near 13.3, -115.7 with movement WNW at 14 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 50 mph.

31 Jul 2021 - 3:00 UTC ...HILDA MOVING WEST-NORTHWARD OVER THE OPEN EASTERN PACIFIC... As of 9:00 PM MDT Fri Jul 30 the center of Hilda was located near 13.2, -114.6 with movement WNW at 15 mph. The minimum central pressure was 1003 mb with maximum sustained winds of about 45 mph.

30 Jul 2021 - 21:00 UTC ...TROPICAL STORM HILDA FORMS WELL OFF THE COAST OF MEXICO... As of 3:00 PM MDT Fri Jul 30 the center of Hilda was located near 12.1, -113.6 with movement W at 16 mph. The minimum central pressure was 1003 mb with maximum sustained winds of about 45 mph.

Storm no longer tracked

GeoColor

True Color daytime, multispectral IR at night
6 Aug 2021 - 22:40 UTC

Last update > 1 hour

Day Convection

RGB used to identify areas of rapid intensification
6 Aug 2021 - 22:50 UTC

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Night Microphysics

RGB to distinguish clouds from fog
6 Aug 2021 - 22:50 UTC

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Sandwich RGB

Blend combines IR band 13 with visual band 3
6 Aug 2021 - 22:50 UTC

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Day Land Cloud

EUMETSAT Natural Color
6 Aug 2021 - 22:50 UTC

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AirMass RGB

RGB based on data from IR & water vapor
6 Aug 2021 - 22:50 UTC

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Band 1

0.47 µm
Blue - Visible
6 Aug 2021 - 22:50 UTC

Last update > 1 hour

Band 2

0.64 µm
Red - Visible
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Band 3

0.86 µm
Veggie - Near IR
6 Aug 2021 - 22:50 UTC

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Band 4

1.37 µm
Cirrus - Near IR
6 Aug 2021 - 22:50 UTC

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Band 5

1.6 µm
Snow/Ice - Near IR
6 Aug 2021 - 22:50 UTC

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Band 6

2.2 µm
Cloud Particle - Near IR
6 Aug 2021 - 22:50 UTC

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Band 7

3.9 µm
Shortwave Window - IR
6 Aug 2021 - 22:50 UTC

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Band 8

6.2 µm
Upper-Level Water Vapor - IR
6 Aug 2021 - 22:50 UTC

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Band 9

6.9 µm
Mid-Level Water Vapor - IR
6 Aug 2021 - 22:50 UTC

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Band 10

7.3 µm
Lower-level Water Vapor - IR
6 Aug 2021 - 22:50 UTC

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Band 11

8.4 µm
Cloud Top - IR
6 Aug 2021 - 22:50 UTC

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Band 12

9.6 µm
Ozone - IR
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Band 13

10.3 µm
Clean Longwave Window - IR
6 Aug 2021 - 22:50 UTC

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Band 14

11.2 µm
Longwave Window - IR
6 Aug 2021 - 22:50 UTC

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Band 15

12.3 µm
Dirty Longwave Window - IR
6 Aug 2021 - 22:50 UTC

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Band 16

13.3 µm
CO₂ Longwave - IR
6 Aug 2021 - 22:50 UTC

Last update > 1 hour