Overall Green Tropical Cyclone for LALA-26 in United States from 12 Aug 2026 15:00 UTC to 28 Aug 2026 09:00 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 Green Tropical Cyclone for LALA-26

in United States

20 Aug 2026 12 UTC

click on

to select bulletin time

Meteorological source:

GDACS NOAA

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone LALA-26 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GFS
Exposed countries	United States,
Exposed population	No people in Category 1 or higher
Maximum wind speed	166 km/h
Maximum storm surge	0.2 m (16 Aug 01:15 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
GFS Current	158 km/h	0.2 m	355 mm	0.5
GFS Overall	166 km/h	0.2 m	544 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

Wind exposed population - AoIs

Estimations based on the bulletin of 20 Aug 2026 12:00 UTC (Overall situation)

Category	Country	Population
Tropical Storm	United States	550,502	+
	United States	550,493
	Other countries	09

See TC classification SSHS

Wind Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

N°	Date (UTC)	Max Winds (km/h)	Pop in Cat. 1 or higher	TS	Cat. 1	Cat. 2	Cat. 3	Cat. 4	Cat. 5	Countries
1	12 Aug 2026 12:00	76	-	-	-	-	-	-	-
2	12 Aug 2026 18:00	76	-	-	-	-	-	-	-
3	13 Aug 2026 00:00	72	-	-	-	-	-	-	-
4	13 Aug 2026 06:00	79	-	-	-	-	-	-	-
5	13 Aug 2026 12:00	76	-	-	-	-	-	-	-
6	13 Aug 2026 18:00	76	-	-	-	-	-	-	-
7	14 Aug 2026 00:00	83	-	-	-	-	-	-	-
8	14 Aug 2026 06:00	90	-	-	-	-	-	-	-
9	14 Aug 2026 12:00	83	-	-	-	-	-	-	-
10	14 Aug 2026 18:00	83	-	-	-	-	-	-	-
11	15 Aug 2026 00:00	112	-	-	-	-	-	-	-
12	15 Aug 2026 06:00	97	-	-	-	-	-	-	-
13	15 Aug 2026 12:00	104	-	-	-	-	-	-	-
14	15 Aug 2026 18:00	112	-		-	-	-	-	-	United States, Other countries
15	16 Aug 2026 00:00	104	-		-	-	-	-	-	United States, Other countries
16	16 Aug 2026 06:00	101	-		-	-	-	-	-	United States, Other countries
17	16 Aug 2026 12:00	90	-		-	-	-	-	-	United States, Other countries
18	16 Aug 2026 18:00	101	-		-	-	-	-	-	United States, Other countries
19	17 Aug 2026 00:00	101	-	-	-	-	-	-	-
20	17 Aug 2026 06:00	83	-	-	-	-	-	-	-
21	17 Aug 2026 12:00	79	-	-	-	-	-	-	-
22	17 Aug 2026 18:00	90	-	-	-	-	-	-	-
23	18 Aug 2026 00:00	94	-	-	-	-	-	-	-
24	18 Aug 2026 06:00	104	-	-	-	-	-	-	-
25	18 Aug 2026 12:00	112	-	-	-	-	-	-	-
26	18 Aug 2026 18:00	130	-	-	-	-	-	-	-
27	19 Aug 2026 00:00	144	-	-	-	-	-	-	-
28	19 Aug 2026 06:00	166	-	-	-	-	-	-	-
29	19 Aug 2026 12:00	158	-	-	-	-	-	-	-
30	19 Aug 2026 18:00	155	-	-	-	-	-	-	-
31	20 Aug 2026 00:00	155	-	-	-	-	-	-	-
32	20 Aug 2026 06:00	148	-	-	-	-	-	-	-
33	20 Aug 2026 12:00	158	-	-	-	-	-	-	-

Download:

Impact estimation for the next 72h

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Rainfall

544 mm

Up to 160 thousand can be affected by rain higher than 100mm (see SSHS)

Rain exposed population - AoIs

Estimations based on the bulletin of 20 Aug 2026 12:00 UTC (Overall situation)

Level	Country	Population
500-750 mm	United States	6,866
250-500 mm	United States	119,019
100-250 mm	United States, Kiribati	29,781	+
	United States	20,038
	Kiribati	9,743
50-100 mm	United States, Kiribati	1,186,617	+
	United States	1,184,693
	Other countries	03
	Kiribati	1,920

Rain Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

N°	Date (UTC)	Max Rainfall (mm)	Pop >100mm or higher	50-100	100-250	250-500	500-750	750-1000	>1000	Countries
1	12 Aug 2026 12:00	94	-	-	-	-	-	-	-
2	12 Aug 2026 18:00	101	-	-	-	-	-	-	-
3	13 Aug 2026 00:00	76	-	-	-	-	-	-	-
4	13 Aug 2026 06:00	126	-	-	-	-	-	-	-
5	13 Aug 2026 12:00	86	-	-	-	-	-	-	-
6	13 Aug 2026 18:00	144	-	-	-	-	-	-	-
7	14 Aug 2026 00:00	204	-	-	-	-	-	-	-
8	14 Aug 2026 06:00	91	-	-	-	-	-	-	-
9	14 Aug 2026 12:00	75	-	-	-	-	-	-	-
10	14 Aug 2026 18:00	39	-	-	-	-	-	-	-
11	15 Aug 2026 00:00	97	-	-	-	-	-	-	-
12	15 Aug 2026 06:00	129	-	-	-	-	-	-	-
13	15 Aug 2026 12:00	112	-	-	-	-	-	-	-
14	15 Aug 2026 18:00	160	80 thousand			-	-	-	-	United States
15	16 Aug 2026 00:00	229	90 thousand			-	-	-	-	United States
16	16 Aug 2026 06:00	158	20 thousand			-	-	-	-	United States
17	16 Aug 2026 12:00	86	-	-	-	-	-	-	-
18	16 Aug 2026 18:00	120	-	-	-	-	-	-	-
19	17 Aug 2026 00:00	71	-	-	-	-	-	-	-
20	17 Aug 2026 06:00	69	-	-	-	-	-	-	-
21	17 Aug 2026 12:00	127	-	-	-	-	-	-	-
22	17 Aug 2026 18:00	120	-	-	-	-	-	-	-
23	18 Aug 2026 00:00	69	-	-	-	-	-	-	-
24	18 Aug 2026 06:00	70	-	-	-	-	-	-	-
25	18 Aug 2026 12:00	120	-	-	-	-	-	-	-
26	18 Aug 2026 18:00	108	-	-	-	-	-	-	-
27	19 Aug 2026 00:00	149	-	-	-	-	-	-	-
28	19 Aug 2026 06:00	188	-	-	-	-	-	-	-
29	19 Aug 2026 12:00	140	-	-	-	-	-	-	-
30	19 Aug 2026 18:00	144	-	-	-	-	-	-	-
31	20 Aug 2026 00:00	151	-	-	-	-	-	-	-
32	20 Aug 2026 06:00	127	-	-	-	-	-	-	-
33	20 Aug 2026 12:00	355	-	-	-	-	-	-	-

Impact estimation for the next 72h

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StormSurge

0.2 m

The maximum Storm surge height is 0.2m in Waiahukini, United States. This height is estimated for 16 Aug 2026 01:15 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.

Storm Surge Exposed population - AoIs

No exposed population (greater than 0.25m) based on the bulletin of 20 Aug 2026 12:00 UTC (Overall situation)

Storm Surge Exposed locations

Calculation based on the bulletin of 20 Aug 2026 12:00 UTC (Overall situation)

Level	Date (UTC)	Name	Country	Storm surge height (m)
	16 Aug 2026 01:15	Waiahukini	United States	0.2
	16 Aug 2026 01:15	Kaalualu	United States	0.2
	16 Aug 2026 03:00	Milolii	United States	0.2
	16 Aug 2026 03:00	Papa	United States	0.2
	18 Aug 2026 14:45	Kahakuloa	United States	0.2
	18 Aug 2026 14:45	Maalaea	United States	0.2
	18 Aug 2026 14:45	Waihee	United States	0.2
	18 Aug 2026 14:45	Hyashi Village	United States	0.2
	18 Aug 2026 14:45	Wailuku	United States	0.2
	18 Aug 2026 14:45	Kahului	United States	0.2
	18 Aug 2026 14:45	Kihei	United States	0.2
	18 Aug 2026 14:45	Puunene	United States	0.2
	18 Aug 2026 14:45	Village Eight	United States	0.2
	18 Aug 2026 14:45	Hawaiian Village	United States	0.2
	18 Aug 2026 14:45	Paia	United States	0.2
	18 Aug 2026 14:45	Haiku	United States	0.2
	18 Aug 2026 14:45	Pauwela	United States	0.2
	18 Aug 2026 14:45	Ulumalu	United States	0.2
	16 Aug 2026 15:00	Waipio	United States	0.2
	16 Aug 2026 15:00	Pearl City	United States	0.2
	16 Aug 2026 15:00	Marconi	United States	0.2
	16 Aug 2026 15:00	Kahuku	United States	0.2
	16 Aug 2026 15:00	Waimalu	United States	0.2
	16 Aug 2026 15:00	Laie	United States	0.2
	16 Aug 2026 15:00	Hauula	United States	0.2
	16 Aug 2026 15:00	Punaluu	United States	0.2
	16 Aug 2026 15:00	Waikane	United States	0.2
	16 Aug 2026 15:00	Kaaawa	United States	0.2
	16 Aug 2026 15:00	Kahana	United States	0.2
	16 Aug 2026 15:00	Kahaluu	United States	0.2
	16 Aug 2026 15:00	Ahuimanu	United States	0.2
	16 Aug 2026 15:00	Heeia	United States	0.2
	16 Aug 2026 15:00	Kaneohe	United States	0.2
	16 Aug 2026 15:00	Kaneohe Station	United States	0.2
	16 Aug 2026 15:00	Kailua	United States	0.2
	16 Aug 2026 15:00	Lanikai	United States	0.2
	20 Aug 2026 22:30	Umipaa	United States	0.2
	20 Aug 2026 22:30	Kaunakakai	United States	0.2
	20 Aug 2026 22:30	Kaumalapau	United States	0.2
	20 Aug 2026 22:30	Moku	United States	0.2
	20 Aug 2026 22:30	Kamalo	United States	0.2
	20 Aug 2026 22:30	Kaluaaha	United States	0.2
	20 Aug 2026 22:30	Keomuku	United States	0.2
	20 Aug 2026 22:30	Ualapue	United States	0.2
	20 Aug 2026 22:30	Pukoo	United States	0.2
	20 Aug 2026 22:30	Waialua	United States	0.2
	20 Aug 2026 23:45	Honolulu	United States	0.2
	20 Aug 2026 23:45	Maunawili	United States	0.2
	20 Aug 2026 23:45	Aina Haina	United States	0.2
	20 Aug 2026 23:45	Waimanalo	United States	0.2
	20 Aug 2026 23:45	Maunalua	United States	0.2
	15 Aug 2026 23:00	Naalehu	United States	0.2
	15 Aug 2026 23:00	Honuapo	United States	0.2
	18 Aug 2026 23:45	Kailua	United States	0.2
	18 Aug 2026 23:45	Wailua	United States	0.2
	20 Aug 2026 22:45	Kaanapali	United States	0.2
	20 Aug 2026 22:45	Puukolii	United States	0.2
	20 Aug 2026 22:45	Lahaina	United States	0.2
	15 Aug 2026 23:00	Hilea	United States	0.2
	16 Aug 2026 15:30	Crater Village	United States	0.2
	16 Aug 2026 15:30	Olowalu	United States	0.2
	16 Aug 2026 15:30	Keawakapu	United States	0.2
	16 Aug 2026 15:30	Makena	United States	0.2
	16 Aug 2026 15:30	Keoneoio	United States	0.2
	16 Aug 2026 15:30	Ulupalakua	United States	0.2
	16 Aug 2026 04:00	Honaunau	United States	0.2
	16 Aug 2026 04:00	Hookena	United States	0.2
	16 Aug 2026 04:00	Keokea	United States	0.2
	16 Aug 2026 04:00	Kealia	United States	0.2
	16 Aug 2026 04:00	Keauhou	United States	0.2
	16 Aug 2026 04:00	Kahaluu	United States	0.2
	16 Aug 2026 04:00	Captain Cook	United States	0.2
	16 Aug 2026 04:00	Napoopao	United States	0.2
	13 Aug 2026 13:30	Weston Point	Kiribati	0.2
	16 Aug 2026 03:15	Sea View	United States	0.2
	13 Aug 2026 13:30	Napari	Kiribati	0.2
	16 Aug 2026 07:15	Honokahua	United States	0.2
	16 Aug 2026 07:15	Mahinahina Camp	United States	0.2
	16 Aug 2026 07:15	Kapalua	United States	0.2
	16 Aug 2026 03:15	Mahaiula	United States	0.2
	16 Aug 2026 04:00	Waipio	United States	0.2
	16 Aug 2026 04:00	Kukuihaele	United States	0.2
	16 Aug 2026 04:00	Honokaa	United States	0.2
	16 Aug 2026 03:15	Kaupulehu	United States	0.2
	16 Aug 2026 01:45	Kiholo	United States	0.2
	16 Aug 2026 01:45	Weliweli	United States	0.2
	16 Aug 2026 01:45	Anaehoomalu	United States	0.2
	16 Aug 2026 02:15	Puako	United States	0.2
	16 Aug 2026 02:15	Waikoloa Village	United States	0.2
	16 Aug 2026 02:15	Kawaihae	United States	0.2
	20 Aug 2026 13:15	Halawa	United States	0.2
	18 Aug 2026 00:45	Kualapuu	United States	0.2
	16 Aug 2026 14:45	Makaha	United States	0.2
	16 Aug 2026 14:45	Makaha Valley	United States	0.2
	16 Aug 2026 14:45	Mokuleia	United States	0.2
	16 Aug 2026 14:45	Dillingham Ranch	United States	0.2
	16 Aug 2026 14:45	Waialua	United States	0.2
	16 Aug 2026 14:45	Haleiwa	United States	0.2
	16 Aug 2026 14:45	Kamooloa	United States	0.2
	16 Aug 2026 14:45	Kawailoa Camp	United States	0.2
	16 Aug 2026 14:45	Kawailoa Beach	United States	0.2
	16 Aug 2026 14:45	Waimea	United States	0.2
	16 Aug 2026 14:45	Sunset Beach	United States	0.2
	16 Aug 2026 14:45	Pupukea	United States	0.2
	16 Aug 2026 14:45	Waialee	United States	0.2
	16 Aug 2026 14:45	Kawela Bay	United States	0.2
	16 Aug 2026 15:15	Halena	United States	0.2
	16 Aug 2026 15:15	Wahilauhue	United States	0.2
	16 Aug 2026 15:15	Kepuhi	United States	0.2
	16 Aug 2026 15:15	Mauna Loa	United States	0.2
	16 Aug 2026 15:15	Moomomi	United States	0.2
	16 Aug 2026 16:15	Hoolehua	United States	0.2
	16 Aug 2026 16:15	Kalaupapa	United States	0.2
	16 Aug 2026 01:45	Mahukona	United States	0.2
	16 Aug 2026 01:45	Hawi	United States	0.2
	16 Aug 2026 01:45	Kapaau	United States	0.2
	16 Aug 2026 20:15	Puuwai	United States	0.1
	16 Aug 2026 14:15	Aiea	United States	0.1
	16 Aug 2026 14:15	Halawa	United States	0.1
	16 Aug 2026 14:15	Halawa Heights	United States	0.1
	16 Aug 2026 14:15	Aliamanu	United States	0.1
	16 Aug 2026 14:15	Fort Shafter	United States	0.1
	16 Aug 2026 01:45	Halaula	United States	0.1
	16 Aug 2026 01:45	Makapala	United States	0.1
	16 Aug 2026 01:45	Niulii	United States	0.1
	16 Aug 2026 20:15	Kahaino	United States	0.1
	16 Aug 2026 15:00	Barbers Point Housing	United States	0.1
	16 Aug 2026 15:00	Ewa	United States	0.1
	16 Aug 2026 15:00	Honouliuli	United States	0.1
	16 Aug 2026 15:00	Ewa Gentry	United States	0.1
	16 Aug 2026 15:00	Village Park	United States	0.1
	16 Aug 2026 15:00	Waipahu	United States	0.1
	16 Aug 2026 15:00	Ewa Beach	United States	0.1
	16 Aug 2026 15:00	Iroquois Point	United States	0.1
	16 Aug 2026 15:00	Hickam Housing	United States	0.1
	15 Aug 2026 19:45	Nahiku	United States	0.1
	16 Aug 2026 15:00	Waianae	United States	0.1
	16 Aug 2026 15:00	Maili	United States	0.1
	16 Aug 2026 15:00	Nanakuli	United States	0.1
	16 Aug 2026 20:15	Nonopapa	United States	0.1
	16 Aug 2026 20:15	Kiekie	United States	0.1
	16 Aug 2026 20:15	Hanapepe	United States	0.1
	16 Aug 2026 20:15	Eleele	United States	0.1
	16 Aug 2026 20:00	Kukuiula	United States	0.1
	16 Aug 2026 20:00	Koloa	United States	0.1
	16 Aug 2026 20:00	Poipu	United States	0.1
	16 Aug 2026 20:15	Kekaha	United States	0.1
	16 Aug 2026 20:15	Waimea	United States	0.1
	16 Aug 2026 20:15	Pakala Village	United States	0.1
	16 Aug 2026 20:15	Makaweli	United States	0.1
	16 Aug 2026 20:15	Kaumakani	United States	0.1
	16 Aug 2026 20:00	Kalaheo	United States	0.1
	16 Aug 2026 20:00	Lawai	United States	0.1
	16 Aug 2026 20:00	Omao	United States	0.1
	16 Aug 2026 20:00	Puhi	United States	0.1
	16 Aug 2026 20:00	Lihue	United States	0.1
	16 Aug 2026 20:00	Waieli	United States	0.1
	16 Aug 2026 20:00	Mana	United States	0.1
	16 Aug 2026 20:00	Kalalau	United States	0.1
	15 Aug 2026 19:45	Paauilo	United States	0.1
	15 Aug 2026 19:45	Kukaiau	United States	0.1
	15 Aug 2026 19:15	Royal Gardens	United States	0.1
	15 Aug 2026 19:15	Kupaahu	United States	0.1
	16 Aug 2026 20:00	Hanamaulu	United States	0.1
	15 Aug 2026 19:15	Kalapana	United States	0.1
	16 Aug 2026 05:00	Ookala	United States	0.1
	16 Aug 2026 05:00	Laupahoehoe	United States	0.1
	16 Aug 2026 05:00	Papaaloa	United States	0.1
	16 Aug 2026 05:00	Weloka	United States	0.1
	16 Aug 2026 05:00	Ninole	United States	0.1
	16 Aug 2026 07:45	Kaupo	United States	0.1
	15 Aug 2026 19:00	Opihikao	United States	0.1
	17 Aug 2026 10:00	Haena	United States	0.1
	17 Aug 2026 10:00	Wainiha	United States	0.1
	17 Aug 2026 09:15	Hanalei	United States	0.1
	17 Aug 2026 09:15	Princeville	United States	0.1
	21 Aug 2026 02:00	Hakalau	United States	0.1
	21 Aug 2026 02:00	Honomu	United States	0.1
	21 Aug 2026 02:00	Pepeekeo	United States	0.1
	21 Aug 2026 02:00	Wainaku	United States	0.1
	21 Aug 2026 02:00	Papaikou	United States	0.1
	21 Aug 2026 02:00	Paukaa	United States	0.1
	21 Aug 2026 02:00	Hilo	United States	0.1

Disclaimer - Copyright
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.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.