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31 Oct 2024 - 06:09 EDT
31 Oct 2024 - 10:09 UTC

Post-tropical Cyclone Hilary at 44.6°N - 115.5°W

Valley County, ID

Last observation: 22 Aug 2023 - 05:10 UTC

« 2023 Storms »

16 Aug 2023 - 21 Aug 2023


Storm images and information

NHC Storm Description:

21 Aug 2023 - 21:00 UTC No description available

21 Aug 2023 - 15:00 UTC No description available

21 Aug 2023 - 15:00 UTC No description available

21 Aug 2023 - 15:00 UTC No description available

21 Aug 2023 - 9:00 UTC ...CONTINUED LIFE-THREATENING AND LOCALLY CATASTROPHIC FLOODING EXPECTED OVER PORTIONS OF THE SOUTHWESTERN U.S. TODAY... ...NEXT ADVISORY TO BE ISSUED BY THE WEATHER PREDICTION CENTER... As of 2:00 AM PDT Mon Aug 21 the center of Hilary was located near 38.3, -117.9 with movement N at 29 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 35 mph.

21 Aug 2023 - 6:00 UTC ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY OVER PORTIONS OF THE SOUTHWESTERN U.S. AND BAJA CALIFORNIA THROUGH MONDAY... As of 11:00 PM PDT Sun Aug 20 the center of Hilary was located near 36.1, -118.1 with movement NNW at 28 mph. The minimum central pressure was 1003 mb with maximum sustained winds of about 40 mph.

21 Aug 2023 - 3:00 UTC ...CENTER OF HILARY MOVING NEAR THE COAST OF SOUTHERN CALIFORNIA... ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY OVER NORTHERN BAJA CALIFORNIA AND PORTIONS OF THE SOUTHWESTERN U.S. THROUGH MONDAY... As of 8:00 PM PDT Sun Aug 20 the center of Hilary was located near 33.9, -118.2 with movement NNW at 28 mph. The minimum central pressure was 998 mb with maximum sustained winds of about 45 mph.

21 Aug 2023 - 0:00 UTC ...CENTER OF HILARY MOVES INTO SOUTHERN CALIFORNIA... ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY OVER NORTHERN BAJA CALIFORNIA AND PORTIONS OF THE SOUTHWESTERN U.S. THROUGH MONDAY... As of 5:00 PM PDT Sun Aug 20 the center of Hilary was located near 33.5, -116.7 with movement N at 23 mph. The minimum central pressure was 997 mb with maximum sustained winds of about 50 mph.

20 Aug 2023 - 21:00 UTC ...CORE OF HILARY NEARING SOUTHERN CALIFORNIA... ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY OVER BAJA CALIFORNIA AND PORTIONS OF THE SOUTHWESTERN U.S. THROUGH MONDAY... As of 2:00 PM PDT Sun Aug 20 the center of Hilary was located near 31.3, -116.1 with movement N at 23 mph. The minimum central pressure was 990 mb with maximum sustained winds of about 60 mph.

20 Aug 2023 - 18:00 UTC ...HILARY MAKES LANDFALL OVER THE NORTHERN BAJA CALIFORNIA PENINSULA... ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY OVER BAJA CALIFORNIA AND PORTIONS OF THE SOUTHWESTERN U.S. THROUGH MONDAY... As of 11:00 AM PDT Sun Aug 20 the center of Hilary was located near 29.9, -115.6 with movement NNW at 25 mph. The minimum central pressure was 988 mb with maximum sustained winds of about 65 mph.

20 Aug 2023 - 15:00 UTC ...HILARY VERY NEAR THE WEST COAST OF BAJA CALIFORNIA... ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY OVER BAJA CALIFORNIA AND PORTIONS OF THE SOUTHWESTERN U.S. THROUGH MONDAY... As of 8:00 AM PDT Sun Aug 20 the center of Hilary was located near 29.7, -115.9 with movement NNW at 25 mph. The minimum central pressure was 984 mb with maximum sustained winds of about 70 mph.

20 Aug 2023 - 12:00 UTC ...HILARY VERY NEAR THE WEST COAST OF BAJA CALIFORNIA... ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY OVER BAJA CALIFORNIA AND PORTIONS OF THE SOUTHWESTERN U.S. THROUGH MONDAY... As of 5:00 AM PDT Sun Aug 20 the center of Hilary was located near 28.8, -115.5 with movement NNW at 21 mph. The minimum central pressure was 979 mb with maximum sustained winds of about 80 mph.

20 Aug 2023 - 9:00 UTC ...HEAVY RAINS CONTINUE SPREADING NORTHWARD OVER THE BAJA PENINSULA AND THE SOUTHWESTERN UNITED STATES... ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY... As of 2:00 AM PDT Sun Aug 20 the center of Hilary was located near 27.4, -115.0 with movement NNW at 21 mph. The minimum central pressure was 974 mb with maximum sustained winds of about 85 mph.

20 Aug 2023 - 6:00 UTC ...HEAVY RAINS FROM HILARY SPREADING NORTHWARD OVER THE BAJA PENINSULA AND THE SOUTHWESTERN UNITED STATES... ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY... As of 12:00 AM MDT Sun Aug 20 the center of Hilary was located near 26.5, -114.9 with movement NNW at 20 mph. The minimum central pressure was 972 mb with maximum sustained winds of about 85 mph.

20 Aug 2023 - 3:00 UTC ...HEAVY RAINS CONTINUE TO SPREAD NORTHWARD OVER THE BAJA PENINSULA AND THE SOUTHWESTERN UNITED STATES... ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY... As of 9:00 PM MDT Sat Aug 19 the center of Hilary was located near 25.3, -114.6 with movement NNW at 18 mph. The minimum central pressure was 968 mb with maximum sustained winds of about 90 mph.

20 Aug 2023 - 0:00 UTC ...HEAVY RAINS SPREADING NORTHWARD OVER THE BAJA PENINSULA AND THE SOUTHWESTERN UNITED STATES... ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY... As of 6:00 PM MDT Sat Aug 19 the center of Hilary was located near 24.4, -114.2 with movement NNW at 17 mph. The minimum central pressure was 964 mb with maximum sustained winds of about 100 mph.

19 Aug 2023 - 21:00 UTC ...HEAVY RAINS ALREADY AFFECTING PORTIONS OF BAJA CALIFORNIA AND THE SOUTHWESTERN U.S... ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY... As of 3:00 PM MDT Sat Aug 19 the center of Hilary was located near 23.8, -114.1 with movement NNW at 17 mph. The minimum central pressure was 959 mb with maximum sustained winds of about 110 mph.

19 Aug 2023 - 18:00 UTC ...HILARY HEADED TOWARD THE CENTRAL BAJA CALIFORNIA PENINSULA... ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY OVER BAJA CALIFORNIA AND THE SOUTHWESTERN U.S. THROUGH MONDAY... As of 12:00 PM MDT Sat Aug 19 the center of Hilary was located near 22.8, -113.9 with movement NNW at 16 mph. The minimum central pressure was 958 mb with maximum sustained winds of about 115 mph.

19 Aug 2023 - 15:00 UTC ...HILARY HEADED TOWARD THE CENTRAL BAJA CALIFORNIA PENINSULA... ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY OVER BAJA CALIFORNIA AND THE SOUTHWESTERN U.S. THROUGH MONDAY... As of 9:00 AM MDT Sat Aug 19 the center of Hilary was located near 22.3, -113.5 with movement NNW at 16 mph. The minimum central pressure was 947 mb with maximum sustained winds of about 125 mph.

19 Aug 2023 - 12:00 UTC ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY OVER BAJA CALIFORNIA AND THE SOUTHWESTERN U.S. THROUGH MONDAY... ...HURRICANE-FORCE WINDS EXPECTED ALONG THE WEST-CENTRAL COAST OF THE BAJA CALIFORNIA PENINSULA TONIGHT AND SUNDAY MORNING... As of 6:00 AM MDT Sat Aug 19 the center of Hilary was located near 21.5, -113.4 with movement NNW at 13 mph. The minimum central pressure was 943 mb with maximum sustained winds of about 130 mph.

19 Aug 2023 - 9:00 UTC ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY OVER BAJA CALIFORNIA AND THE SOUTHWESTERN U.S. THROUGH MONDAY... ...HURRICANE-FORCE WINDS EXPECTED ALONG THE WEST-CENTRAL COAST OF THE BAJA CALIFORNIA PENINSULA TONIGHT AND SUNDAY MORNING... As of 3:00 AM MDT Sat Aug 19 the center of Hilary was located near 20.9, -113.3 with movement NNW at 13 mph. The minimum central pressure was 943 mb with maximum sustained winds of about 130 mph.

19 Aug 2023 - 6:00 UTC ...CATASTROPHIC AND LIFE-THREATENING FLOODING LIKELY OVER BAJA CALIFORNIA AND THE SOUTHWESTERN U.S. THROUGH EARLY NEXT WEEK... ...AIR FORCE RESERVE HURRICANE HUNTERS FIND THAT HILARY IS STILL A CATEGORY 4 HURRICANE... As of 12:00 AM MDT Sat Aug 19 the center of Hilary was located near 20.3, -113.0 with movement NNW at 13 mph. The minimum central pressure was 946 mb with maximum sustained winds of about 130 mph.

19 Aug 2023 - 3:00 UTC ...TROPICAL STORM WARNINGS EXTENDED NORTHWARD INTO SOUTHERN CALIFORNIA... As of 9:00 PM MDT Fri Aug 18 the center of Hilary was located near 19.7, -112.7 with movement NNW at 13 mph. The minimum central pressure was 948 mb with maximum sustained winds of about 130 mph.

19 Aug 2023 - 0:00 UTC ...LIFE-THREATENING AND POTENTIALLY CATASTROPHIC FLOODING LIKELY OVER MUCH OF BAJA CALIFORNIA AND THE SOUTHWESTERN UNITED STATES THIS WEEKEND AND EARLY NEXT WEEK... As of 6:00 PM MDT Fri Aug 18 the center of Hilary was located near 19.1, -112.4 with movement NW at 12 mph. The minimum central pressure was 948 mb with maximum sustained winds of about 130 mph.

18 Aug 2023 - 21:00 UTC ...HILARY REMAINS A POWERFUL CATEGORY 4 HURRICANE... ...LIFE-THREATENING AND POTENTIALLY CATASTROPHIC FLOODING LIKELY OVER MUCH OF BAJA CALIFORNIA AND SOUTHERN CALIFORNIA THIS WEEKEND AND EARLY NEXT WEEK... As of 3:00 PM MDT Fri Aug 18 the center of Hilary was located near 18.7, -112.2 with movement NW at 12 mph. The minimum central pressure was 948 mb with maximum sustained winds of about 130 mph.

18 Aug 2023 - 18:00 UTC ...HILARY NEAR SOCORRO ISLAND... ...EXPECTED TO PRODUCE FLOODING RAINS AND STRONG WINDS OVER MUCH OF BAJA CALIFORNIA AND SOUTHERN CALIFORNIA THIS WEEKEND AND EARLY NEXT WEEK... As of 12:00 PM MDT Fri Aug 18 the center of Hilary was located near 18.2, -111.8 with movement NW at 10 mph. The minimum central pressure was 939 mb with maximum sustained winds of about 145 mph.

18 Aug 2023 - 15:00 UTC ...HILARY REMAINS A POWERFUL CATEGORY 4 HURRICANE... ...HURRICANE WARNING ISSUED FOR PORTIONS OF BAJA CALIFORNIA AND TROPICAL STORM WATCH ISSUED FOR EXTREME SOUTHERN CALIFORNIA... As of 9:00 AM MDT Fri Aug 18 the center of Hilary was located near 17.9, -111.4 with movement NW at 10 mph. The minimum central pressure was 939 mb with maximum sustained winds of about 145 mph.

18 Aug 2023 - 12:00 UTC ...HILARY REMAINS A LARGE AND POWERFUL CATEGORY 4 HURRICANE... ...SIGNIFICANT FLOODING IMPACTS POSSIBLE ACROSS PORTIONS OF THE BAJA CALIFORNIA PENINSULA AND THE SOUTHWESTERN UNITED STATES... As of 6:00 AM MDT Fri Aug 18 the center of Hilary was located near 17.3, -111.0 with movement WNW at 13 mph. The minimum central pressure was 942 mb with maximum sustained winds of about 145 mph.

18 Aug 2023 - 9:00 UTC ...HILARY IS A LARGE AND POWERFUL CATEGORY 4 HURRICANE... ...SIGNIFICANT FLOODING IMPACTS POSSIBLE ACROSS PORTIONS OF THE BAJA CALIFORNIA PENINSULA AND THE SOUTHWESTERN UNITED STATES EARLY NEXT WEEK... As of 3:00 AM MDT Fri Aug 18 the center of Hilary was located near 17.2, -110.8 with movement WNW at 13 mph. The minimum central pressure was 942 mb with maximum sustained winds of about 145 mph.

18 Aug 2023 - 6:00 UTC ...HILARY REACHES CATEGORY 4 INTENSITY... As of 12:00 AM MDT Fri Aug 18 the center of Hilary was located near 16.8, -110.4 with movement WNW at 14 mph. The minimum central pressure was 942 mb with maximum sustained winds of about 140 mph.

18 Aug 2023 - 3:00 UTC ...HILARY CONTINUES TO RAPIDLY INTENSIFY... ...HURRICANE WATCHES ISSUED FOR PORTIONS OF THE WEST COAST OF BAJA CALIFORNIA SUR... As of 9:00 PM MDT Thu Aug 17 the center of Hilary was located near 16.7, -110.0 with movement WNW at 14 mph. The minimum central pressure was 952 mb with maximum sustained winds of about 125 mph.

18 Aug 2023 - 0:00 UTC ...HILARY BECOMES A MAJOR HURRICANE... As of 6:00 PM MDT Thu Aug 17 the center of Hilary was located near 16.4, -109.5 with movement WNW at 14 mph. The minimum central pressure was 955 mb with maximum sustained winds of about 120 mph.

17 Aug 2023 - 21:00 UTC ...HILARY APPROACHING MAJOR HURRICANE STATUS... As of 3:00 PM MDT Thu Aug 17 the center of Hilary was located near 16.1, -108.9 with movement WNW at 14 mph. The minimum central pressure was 960 mb with maximum sustained winds of about 110 mph.

17 Aug 2023 - 18:00 UTC ...HILARY NOW A CATEGORY 2 HURRICANE... ...LIKELY TO BECOME A MAJOR HURRICANE LATER TODAY... As of 12:00 PM MDT Thu Aug 17 the center of Hilary was located near 15.8, -108.4 with movement WNW at 14 mph. The minimum central pressure was 965 mb with maximum sustained winds of about 105 mph.

17 Aug 2023 - 15:00 UTC ...HILARY CONTINUES STRENGTHENING RAPIDLY... ...LIKELY TO BECOME A MAJOR HURRICANE LATER TODAY... As of 9:00 AM MDT Thu Aug 17 the center of Hilary was located near 15.5, -107.8 with movement WNW at 14 mph. The minimum central pressure was 980 mb with maximum sustained winds of about 85 mph.

17 Aug 2023 - 12:00 UTC ...HILARY BECOMES A HURRICANE... As of 6:00 AM MDT Thu Aug 17 the center of Hilary was located near 15.2, -107.1 with movement WNW at 13 mph. The minimum central pressure was 982 mb with maximum sustained winds of about 75 mph.

17 Aug 2023 - 9:00 UTC ...HILARY FORECAST TO RAPIDLY INTENSIFY AND BECOME A HURRICANE VERY SOON... ...TROPICAL STORM WATCH ISSUED FOR THE SOUTHERN PORTION OF BAJA CALIFORNIA SUR... As of 3:00 AM MDT Thu Aug 17 the center of Hilary was located near 14.6, -106.3 with movement WNW at 13 mph. The minimum central pressure was 988 mb with maximum sustained winds of about 70 mph.

17 Aug 2023 - 3:00 UTC ...HILARY LIKELY TO BECOME A HURRICANE TOMORROW... ...INTERESTS IN THE BAJA CALIFORNIA PENINSULA SHOULD CLOSELY MONITOR THE PROGRESS OF THIS STORM... As of 10:00 PM CDT Wed Aug 16 the center of Hilary was located near 13.4, -105.1 with movement WNW at 12 mph. The minimum central pressure was 996 mb with maximum sustained winds of about 50 mph.

16 Aug 2023 - 21:00 UTC ...HILARY EXPECTED TO BECOME A HURRICANE TOMORROW... As of 4:00 PM CDT Wed Aug 16 the center of Hilary was located near 13.7, -103.7 with movement WNW at 15 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 40 mph.

16 Aug 2023 - 15:00 UTC ...TROPICAL STORM HILARY FORMS... ...EXPECTED TO STRENGTHEN... As of 10:00 AM CDT Wed Aug 16 the center of Hilary was located near 12.4, -102.6 with movement WNW at 14 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 40 mph.

Post-tropical Cyclone Hilary at 44.6°N - 115.5°W

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22 Aug 2023 - 04:50 UTC

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GLM FED

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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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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
22 Aug 2023 - 04:40 UTC

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Band 10

7.3 µm
Lower-level Water Vapor - IR
22 Aug 2023 - 04:40 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
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