Overall Green alert Tropical Cyclone for DOUGLAS-20
in United States,
24 Jul 2020 03 UTC
click on to select bulletin time

Meteorological source:

GDACS
Impact Single TC
HWRF
ECMWF
GFS
Impact all weather systems in the area
.

Impact

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

Meteorological source GDACS (NOAA)
Exposed countries United States,
Exposed population No people in Category 1 or higher
Maximum wind speed 213 km/h
Maximum storm surge 0.2 m (27 Jul 02:00 UTC)
Vulnerability Low (United States)

GDACS Score

GDACS alert score for Tropical Cyclones is 0.5 (GREEN Alert), 1.5 (ORANGE Alert), 2.5 (RED Alert)
For more info on GDACS alert score click here.
  Wind Storm surge Rainfall GDACS score
GDACS Current 213 km/h 0.2 m n.a. 0.5
GDACS Overall 213 km/h 0.2 m n.a. 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

213 km/h Current Max.

Up to 2800 people in Category 1 strength or higher (see SSHS)

Impact Timeline

Alert N° Date (UTC) Max Winds (km/h) Population in
Tropical Storm 		Population in
Cat. 1 or higher		 Countries
Green 1 20 Jul 2020 15:00 130 No people No people
Green 2 20 Jul 2020 21:00 139 No people No people
Green 3 21 Jul 2020 03:00 139 No people No people
Green 4 21 Jul 2020 09:00 148 No people No people
Green 5 21 Jul 2020 15:00 167 No people No people
Green 6 21 Jul 2020 21:00 167 No people No people
Green 7 22 Jul 2020 03:00 167 No people No people
Green 8 22 Jul 2020 09:00 167 190 thousand No people United States
Green 9 22 Jul 2020 15:00 176 210 thousand No people United States
Green 10 22 Jul 2020 21:00 185 1.4 million 6 thousand United States
Green 11 23 Jul 2020 03:00 204 1.3 million 3 thousand United States
Green 12 23 Jul 2020 09:00 204 1.3 million 20 thousand United States
Green 13 23 Jul 2020 15:00 204 1.4 million 30 thousand United States
Green 14 23 Jul 2020 21:00 204 1.4 million 20 thousand United States
Green 15 24 Jul 2020 03:00 213 1.4 million 3 thousand United States

Bulletin Timeline

Alert N° Date (UTC) Category Max winds
(km/h)		 Population in
Tropical Storm		 Population in
Cat.1 or higher		 Location (lat, lon) Countries
GREEN
 1 20 Jul 2020 15:00 Tropical depression 56 no people no people 13.7, -119.8
GREEN
 2 20 Jul 2020 21:00 Tropical depression 56 no people no people 13.5, -120.4
GREEN
 3 21 Jul 2020 03:00 Tropical storm 65 no people no people 13.1, -121.6
GREEN
 4 21 Jul 2020 09:00 Tropical storm 93 no people no people 13, -122.8
GREEN
 5 21 Jul 2020 15:00 Tropical storm 102 no people no people 12.4, -124.2
GREEN
 6 21 Jul 2020 21:00 Tropical storm 102 no people no people 12.1, -125.4
GREEN
 7 22 Jul 2020 03:00 Tropical storm 102 no people no people 12.1, -126.7
GREEN
 8 22 Jul 2020 09:00 Tropical storm 102 no people no people 11.9, -128
GREEN
 9 22 Jul 2020 15:00 Category 1 120 no people no people 11.8, -129.5
GREEN
 10 22 Jul 2020 21:00 Category 1 130 no people no people 12.1, -130.9
GREEN
 11 23 Jul 2020 03:00 Category 2 157 no people no people 12.5, -132.6
GREEN
 12 23 Jul 2020 09:00 Category 3 194 no people no people 13.1, -134
GREEN
 13 23 Jul 2020 15:00 Category 3 194 no people no people 13.6, -135.9
GREEN
 14 23 Jul 2020 21:00 Category 3 204 no people no people 14.1, -137.3
GREEN
 15 24 Jul 2020 03:00 Category 4 213 no people no people 14.9, -138.8
GREEN
 15 24 Jul 2020 12:00 Category 3 204 no people no people 15.9, -141.2
GREEN
 15 25 Jul 2020 00:00 Category 3 185 no people no people 17.1, -144.3
GREEN
 15 25 Jul 2020 12:00 Category 2 167 no people no people 18.2, -147.4
GREEN
 15 26 Jul 2020 00:00 Category 1 139 no people no people 19.2, -150.4
GREEN
 15 26 Jul 2020 12:00 Category 1 120 350000 people 2800 people 20, -153.2 United States
GREEN
 15 27 Jul 2020 00:00 Tropical storm 111 1.4 million people no people 20.5, -156 United States
GREEN
 15 28 Jul 2020 00:00 Tropical storm 93 no people no people 21.3, -161.8
GREEN
 15 29 Jul 2020 00:00 Tropical storm 83 no people no people 21.8, -168.5
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.



Exposed population

Countries

Country
United States

Provinces

Region Province Country Population
Hawaii United States 1.1 million people

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Upolu UPP 29 Civ. Paved No 3800

Ports

Name LOCODE Country
Hana Wake Island
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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

0.2 m

The maximum Storm surge height is  0.2m in Keoneoio, United States. This height is estimated for 27 Jul 2020 02:00 UTC .

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. 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.

Locations affected by Storm surge (67 locations). Calculation based on advisory number 15 of 24 Jul 2020 03:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
27 Jul 2020 02:00 Keoneoio United States  0.2
27 Jul 2020 02:00 Makena United States  0.2
27 Jul 2020 00:00 Kaeleku United States  0.2
27 Jul 2020 01:00 Kaupo United States  0.2
27 Jul 2020 02:00 Ulupalakua United States  0.2
27 Jul 2020 03:00 Village Eight United States  0.2
27 Jul 2020 00:00 Kipahulu United States  0.2
26 Jul 2020 20:00 Ookala United States  0.2
27 Jul 2020 04:00 Kaumalapau United States  0.2
27 Jul 2020 00:00 Muolea United States  0.2
27 Jul 2020 00:00 Haou United States  0.2
27 Jul 2020 02:00 Keawakapu United States  0.2
26 Jul 2020 21:00 Kukaiau United States  0.2
27 Jul 2020 00:00 Nahiku United States  0.2
27 Jul 2020 00:00 Puuiki United States  0.2
27 Jul 2020 02:00 Waihee United States  0.2
27 Jul 2020 02:00 Wailuku United States  0.2
27 Jul 2020 02:00 Kahului United States  0.2
27 Jul 2020 02:00 Puunene United States  0.2
27 Jul 2020 02:00 Kailua United States  0.1
27 Jul 2020 04:00 Keomuku United States  0.1
27 Jul 2020 03:00 Kahakuloa United States  0.1
27 Jul 2020 02:00 Hawaiian Village United States  0.1
27 Jul 2020 06:00 Halena United States  0.1
26 Jul 2020 20:00 Ninole United States  0.1
26 Jul 2020 20:00 Laupahoehoe United States  0.1
26 Jul 2020 20:00 Papaaloa United States  0.1
26 Jul 2020 20:00 Weloka United States  0.1
26 Jul 2020 23:00 Hawi United States  0.1
26 Jul 2020 23:00 Halaula United States  0.1
26 Jul 2020 23:00 Niulii United States  0.1
27 Jul 2020 03:00 Olowalu United States  0.1
27 Jul 2020 03:00 Maalaea United States  0.1
27 Jul 2020 03:00 Kihei United States  0.1
27 Jul 2020 06:00 Kaunakakai United States  0.1
26 Jul 2020 23:00 Kapaau United States  0.1
26 Jul 2020 23:00 Makapala United States  0.1
27 Jul 2020 03:00 Lahaina United States  0.1
26 Jul 2020 22:00 Waipio United States  0.1
26 Jul 2020 22:00 Kukuihaele United States  0.1
26 Jul 2020 23:00 Mahukona United States  0.1
27 Jul 2020 00:00 Hana United States  0.1
27 Jul 2020 04:00 Kamalo United States  0.1
27 Jul 2020 04:00 Pukoo United States  0.1
27 Jul 2020 04:00 Puukolii United States  0.1
27 Jul 2020 04:00 Moku United States  0.1
27 Jul 2020 10:00 Barbers Point Housing United States  0.1
26 Jul 2020 20:00 Hakalau United States  0.1
26 Jul 2020 20:00 Honomu United States  0.1
26 Jul 2020 20:00 Pepeekeo United States  0.1
26 Jul 2020 21:00 Paauilo United States  0.1
26 Jul 2020 22:00 Honokaa United States  0.1
26 Jul 2020 23:00 Kawaihae United States  0.1
27 Jul 2020 03:00 Hyashi Village United States  0.1
27 Jul 2020 04:00 Kaluaaha United States  0.1
27 Jul 2020 04:00 Ualapue United States  0.1
27 Jul 2020 03:00 Kaanapali United States  0.1
27 Jul 2020 03:00 Crater Village United States  0.1
27 Jul 2020 03:00 Honokahua United States  0.1
27 Jul 2020 03:00 Mahinahina Camp United States  0.1
27 Jul 2020 03:00 Kapalua United States  0.1
27 Jul 2020 06:00 Wahilauhue United States  0.1
27 Jul 2020 06:00 Kepuhi United States  0.1
27 Jul 2020 06:00 Mauna Loa United States  0.1
27 Jul 2020 06:00 Hoolehua United States  0.1
27 Jul 2020 06:00 Umipaa United States  0.1
27 Jul 2020 06:00 Kualapuu United States  0.1