Overall Green alert Tropical Cyclone for DOUGLAS-20
in United States,

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 06:00 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 167 km/h 0.3 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)

Wind

167 km/h Current

Up to 63000 people in Category 1 strength or higher (see SSHS)

Impact Timeline

Alert 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
Green 16 24 Jul 2020 09:00 213 1.4 million 160 thousand United States
Green 17 24 Jul 2020 15:00 194 1.4 million 270 thousand United States
Green 18 24 Jul 2020 21:00 185 1.4 million 8 thousand United States
Green 19 25 Jul 2020 03:00 185 1.4 million 70 thousand United States
Green 20 25 Jul 2020 09:00 176 1.3 million 70 thousand United States
Green 21 25 Jul 2020 15:00 167 1.3 million 60 thousand United States

Bulletin Timeline

Alert 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
16 24 Jul 2020 09:00 Category 4 213 no people no people 15.7, -140.3
GREEN
17 24 Jul 2020 15:00 Category 3 194 no people no people 16.4, -141.9
GREEN
18 24 Jul 2020 21:00 Category 3 185 no people no people 17, -143.5
GREEN
19 25 Jul 2020 03:00 Category 3 185 no people no people 17.9, -145.1
GREEN
20 25 Jul 2020 09:00 Category 2 176 no people no people 18.5, -146.7
GREEN
21 25 Jul 2020 15:00 Category 2 167 no people no people 19.1, -148.4
GREEN
21 26 Jul 2020 00:00 Category 1 139 no people no people 19.7, -150.6
GREEN
21 26 Jul 2020 12:00 Category 1 130 280000 people no people 20.6, -153.5 United States
GREEN
21 27 Jul 2020 00:00 Category 1 120 1.2 million people 63000 people 21.4, -156.3 United States
GREEN
21 27 Jul 2020 12:00 Tropical storm 111 91000 people no people 22.1, -159.4 United States
GREEN
21 28 Jul 2020 00:00 Tropical storm 102 no people no people 22.7, -162.6
GREEN
21 28 Jul 2020 12:00 Tropical storm 93 no people no people 23.2, -166
GREEN
21 29 Jul 2020 12:00 Tropical storm 83 no people no people 24.1, -172.8
GREEN
21 30 Jul 2020 12:00 Tropical storm 65 no people no people 25.3, -179.2
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

Populated places

Name Region Province Country City class Population
Kapaa Hawaii United States City 9400 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)
Kahuku Hospital 12 0
Turtle Bay Hilton 4 0
Lihue LIH 45 Civ. Paved Yes 6500
Hanamaulu Airstrip 123 0
Princeville HPV 109 0

Ports

Name LOCODE Country
Ahukini Landing Wake Island
Nawiliwili USNWL Wake Island

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.

...

StormSurge

0.2 m

The maximum Storm surge height is  0.3m in Waikane, United States. This height is estimated for 27 Jul 2020 06:00 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 (100 locations). Calculation based on advisory number 21 of 25 Jul 2020 15:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
27 Jul 2020 06:00 Waikane United States  0.3
27 Jul 2020 07:00 Kawela Bay United States  0.2
27 Jul 2020 13:00 Kalalau United States  0.2
27 Jul 2020 06:00 Marconi United States  0.2
27 Jul 2020 06:00 Kahuku United States  0.2
27 Jul 2020 14:00 Kalaheo United States  0.2
27 Jul 2020 14:00 Lawai United States  0.2
27 Jul 2020 07:00 Sunset Beach United States  0.2
27 Jul 2020 07:00 Pupukea United States  0.2
27 Jul 2020 07:00 Waialee United States  0.2
27 Jul 2020 06:00 Laie United States  0.2
27 Jul 2020 06:00 Punaluu United States  0.2
27 Jul 2020 04:00 Kaneohe Station United States  0.2
27 Jul 2020 04:00 Kailua United States  0.2
27 Jul 2020 04:00 Lanikai United States  0.2
27 Jul 2020 06:00 Hauula United States  0.2
27 Jul 2020 13:00 Mana United States  0.2
27 Jul 2020 15:00 Puuwai United States  0.2
27 Jul 2020 07:00 Kawailoa Camp United States  0.2
27 Jul 2020 07:00 Kawailoa Beach United States  0.2
27 Jul 2020 07:00 Waimea United States  0.2
27 Jul 2020 07:00 Waialua United States  0.2
27 Jul 2020 07:00 Haleiwa United States  0.2
27 Jul 2020 07:00 Kamooloa United States  0.2
27 Jul 2020 13:00 Waieli United States  0.2
27 Jul 2020 01:00 Waialua United States  0.2
27 Jul 2020 03:00 Moomomi United States  0.2
27 Jul 2020 06:00 Kahaluu United States  0.2
27 Jul 2020 06:00 Ahuimanu United States  0.2
27 Jul 2020 06:00 Heeia United States  0.2
27 Jul 2020 06:00 Kaneohe United States  0.2
27 Jul 2020 12:00 Puhi United States  0.2
27 Jul 2020 12:00 Lihue United States  0.2
27 Jul 2020 12:00 Wailua Homesteads United States  0.2
27 Jul 2020 12:00 Kealia United States  0.2
27 Jul 2020 12:00 Hanalei United States  0.2
27 Jul 2020 12:00 Princeville United States  0.2
27 Jul 2020 05:00 Waimanalo United States  0.2
27 Jul 2020 07:00 Dillingham Ranch United States  0.2
27 Jul 2020 12:00 Wailua United States  0.2
27 Jul 2020 12:00 Kapaa United States  0.2
27 Jul 2020 12:00 Anahola United States  0.2
27 Jul 2020 02:00 Kalaupapa United States  0.1
27 Jul 2020 06:00 Kaaawa United States  0.1
27 Jul 2020 06:00 Kahana United States  0.1
27 Jul 2020 07:00 Mokuleia United States  0.1
27 Jul 2020 12:00 Hanamaulu United States  0.1
27 Jul 2020 12:00 Kumukumu United States  0.1
27 Jul 2020 13:00 Wainiha United States  0.1
26 Jul 2020 23:00 Ulumalu United States  0.1
27 Jul 2020 01:00 Honokahua United States  0.1
27 Jul 2020 02:00 Hoolehua United States  0.1
27 Jul 2020 02:00 Kualapuu United States  0.1
27 Jul 2020 07:00 Makaha United States  0.1
27 Jul 2020 07:00 Makaha Valley United States  0.1
27 Jul 2020 07:00 Waianae United States  0.1
27 Jul 2020 07:00 Maili United States  0.1
27 Jul 2020 07:00 Waipio United States  0.1
27 Jul 2020 07:00 Waimalu United States  0.1
27 Jul 2020 12:00 Moloaa United States  0.1
27 Jul 2020 12:00 Kilauea United States  0.1
27 Jul 2020 15:00 Kahaino United States  0.1
27 Jul 2020 15:00 Nonopapa United States  0.1
27 Jul 2020 15:00 Kiekie United States  0.1
27 Jul 2020 13:00 Haena United States  0.1
27 Jul 2020 01:00 Kihei United States  0.1
26 Jul 2020 22:00 Nahiku United States  0.1
27 Jul 2020 00:00 Haiku United States  0.1
27 Jul 2020 00:00 Pauwela United States  0.1
27 Jul 2020 02:00 Kamalo United States  0.1
27 Jul 2020 02:00 Kaluaaha United States  0.1
27 Jul 2020 02:00 Ualapue United States  0.1
27 Jul 2020 02:00 Pukoo United States  0.1
27 Jul 2020 02:00 Moku United States  0.1
27 Jul 2020 04:00 Wahilauhue United States  0.1
27 Jul 2020 04:00 Kepuhi United States  0.1
27 Jul 2020 04:00 Mauna Loa United States  0.1
27 Jul 2020 13:00 Kekaha United States  0.1
27 Jul 2020 13:00 Pakala Village United States  0.1
27 Jul 2020 13:00 Makaweli United States  0.1
27 Jul 2020 13:00 Kaumakani United States  0.1
27 Jul 2020 06:00 Honolulu United States  0.1
26 Jul 2020 23:00 Wailua United States  0.1
26 Jul 2020 23:00 Hawaiian Village United States  0.1
26 Jul 2020 23:00 Paia United States  0.1
27 Jul 2020 00:00 Kahakuloa United States  0.1
27 Jul 2020 00:00 Waihee United States  0.1
27 Jul 2020 02:00 Halawa United States  0.1
27 Jul 2020 03:00 Umipaa United States  0.1
27 Jul 2020 03:00 Kaunakakai United States  0.1
27 Jul 2020 04:00 Halena United States  0.1
27 Jul 2020 05:00 Maunawili United States  0.1
27 Jul 2020 05:00 Aina Haina United States  0.1
27 Jul 2020 05:00 Maunalua United States  0.1
27 Jul 2020 13:00 Hanapepe United States  0.1
27 Jul 2020 13:00 Eleele United States  0.1
27 Jul 2020 13:00 Waimea United States  0.1
27 Jul 2020 12:00 Koloa United States  0.1
27 Jul 2020 12:00 Poipu United States  0.1
27 Jul 2020 01:00 Maalaea United States  0.1