Overall Orange Tropical Cyclone for HANNA-20 in Mexico, United States from 23 Jul 2020 03:00 UTC to 26 Jul 2020 21:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve awareness, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Orange Tropical Cyclone for HANNA-20

in Mexico, United States

26 Jul 2020 21 UTC

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Meteorological source:

GDACS NOAA

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone HANNA-20 can have a medium humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	Mexico, United States
Exposed population	920 thousand in Category 1 or higher
Maximum wind speed	148 km/h
Maximum storm surge	1.1 m (25 Jul 22:00 UTC)
Vulnerability	Medium (Mexico)
Landfall	between 26 Jul 2020 15:00 - 26 Jul 2020 21:00 in Mexico

GDACS Score

GDACS score for Tropical Cyclones is 0.5 (GREEN Level), 1.5 (ORANGE Level), 2.5 (RED Level)
For more info on GDACS core click here.

	Wind	Storm surge	Rainfall	GDACS score
Current	56 km/h	1.1 m	n.a.	0.5
Overall	148 km/h	1.1 m	n.a.	1.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

56 km/h Current Max.

Up to 10.3 million people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
1	23 Jul 2020 03:00	74	1.1 million	No people	United States
2	23 Jul 2020 09:00	74	1.7 million	No people	United States, Mexico
3	23 Jul 2020 15:00	83	1.5 million	No people	United States, Mexico
4	23 Jul 2020 21:00	93	1.4 million	No people	United States, Mexico
5	24 Jul 2020 03:00	102	2.6 million	No people	United States, Mexico
6	24 Jul 2020 09:00	102	6.7 million	No people	United States, Mexico
7	24 Jul 2020 15:00	102	7.5 million	No people	United States, Mexico
8	24 Jul 2020 21:00	120	3.6 million	5 thousand	United States
9	25 Jul 2020 03:00	120	10.8 million	Few people	United States
10	25 Jul 2020 09:00	130	8.7 million	100 thousand	United States
11	25 Jul 2020 15:00	130	9.8 million	110 thousand	United States, Mexico
12	25 Jul 2020 21:00	148	9 million	20 thousand	United States
13	26 Jul 2020 03:00	120	10.3 million	960 thousand	United States, Mexico
14	26 Jul 2020 09:00	93	10.2 million	920 thousand	Mexico, United States
15	26 Jul 2020 15:00	74	10.3 million	920 thousand	Mexico, United States
16	26 Jul 2020 21:00	56	10.3 million	920 thousand	Mexico, United States

Bulletin Timeline

N°	Date (UTC)	Category (SSHS)	Max winds (km/h)	Population in Cat.1 or higher	Population in Tropical Storm or higher	Location (lat, lon)	Countries
1	23 Jul 2020 03:00	Tropical depression	46	no people	no people	25.9, -88.2
2	23 Jul 2020 09:00	Tropical depression	46	no people	no people	26, -90
3	23 Jul 2020 15:00	Tropical depression	56	no people	no people	26.3, -90.7
4	23 Jul 2020 21:00	Tropical depression	56	no people	no people	26.1, -90.7
5	24 Jul 2020 03:00	Tropical storm	65	no people	no people	26.2, -91.4
6	24 Jul 2020 09:00	Tropical storm	65	no people	no people	26.7, -92.4
7	24 Jul 2020 15:00	Tropical storm	74	no people	no people	27.2, -93.2
8	24 Jul 2020 21:00	Tropical storm	83	no people	no people	27.3, -94.3
9	25 Jul 2020 03:00	Tropical storm	102	no people	no people	27.1, -94.8
10	25 Jul 2020 09:00	Tropical storm	111	no people	410000 people	27, -95.8
11	25 Jul 2020 15:00	Category 1	130	<1000 people	3.2 million people	27.1, -96.3
12	25 Jul 2020 21:00	Category 1	148	360000 people	3.4 million people	26.8, -97.2	United States
13	26 Jul 2020 03:00	Category 1	120	920000 people	9.3 million people	26.6, -98	United States
14	26 Jul 2020 09:00	Tropical storm	93	no people	9.8 million people	26.3, -98.9	Mexico, United States
15	26 Jul 2020 15:00	Tropical storm	74	no people	8.5 million people	26.1, -99.7	Mexico
16	26 Jul 2020 21:00	Tropical depression	56	no people	no people	25.6, -100.6	Mexico
16	27 Jul 2020 06:00	Tropical depression	46	no people	no people	25.2, -101.6	Mexico
16	27 Jul 2020 18:00	Tropical depression	37	no people	no people	25, -102.6	Mexico

Actual track of the current bulletin

The alert for forecast greater than 3 days is limited to Orange level.

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Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Source: GADM and GHSL

Provinces

Source: GADM and GHSL

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

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Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

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StormSurge

The JRC has developed an experimental global storm surge model. The calculations are published about 20 minutes after a new advisory is detected by GDACS. The calculations identify the populated places affected by storm surge up to three days in advance, using the forecasted track. When forecasts change, the associated storm surge changes too and alert levels may go up or down. All links, data, statistics and maps refer to the latest available calculation. If the calculation for the last advisory is not completed, the latest available calculation is shown.

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While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
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