Overall Green Tropical Cyclone alert for HENRI-21 in United States from 16 Aug 2021 03:00 UTC to 23 Aug 2021 03:00 UTC

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

Overall Green alert Tropical Cyclone for HENRI-21

in United States

21 Aug 2021 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 HENRI-21 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	122 km/h
Maximum storm surge	0.2 m (21 Aug 12:30 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	122 km/h	0.2 m	78 mm	0.5
GFS Overall	126 km/h	0.7 m	810 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 21 Aug 2021 12:00 UTC

Category	Country	Population
Tropical Storm	United States	95,764

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	16 Aug 2021 00:00	32	-	-	-	-	-	-	-
2	16 Aug 2021 06:00	40	-	-	-	-	-	-	-
3	16 Aug 2021 12:00	72	-	-	-	-	-	-	-
4	16 Aug 2021 18:00	58	-	-	-	-	-	-	-
5	17 Aug 2021 00:00	54	-	-	-	-	-	-	-
6	17 Aug 2021 06:00	97	-	-	-	-	-	-	-
7	17 Aug 2021 12:00	83	-	-	-	-	-	-	-
8	17 Aug 2021 18:00	104	-	-	-	-	-	-	-
9	18 Aug 2021 00:00	94	-	-	-	-	-	-	-
10	18 Aug 2021 06:00	97	-	-	-	-	-	-	-
11	18 Aug 2021 12:00	119	-	-	-	-	-	-	-
12	18 Aug 2021 18:00	108	-	-	-	-	-	-	-
13	19 Aug 2021 00:00	119	-	-	-	-	-	-	-
14	19 Aug 2021 06:00	115	-	-	-	-	-	-	-
15	19 Aug 2021 12:00	126	-	-	-	-	-	-	-
16	19 Aug 2021 18:00	104	-	-	-	-	-	-	-
17	20 Aug 2021 00:00	94	-	-	-	-	-	-	-
18	20 Aug 2021 06:00	101	-	-	-	-	-	-	-
19	20 Aug 2021 12:00	122	-	-	-	-	-	-	-
20	20 Aug 2021 18:00	108	-	-	-	-	-	-	-
21	21 Aug 2021 00:00	97	-	-	-	-	-	-	-
22	21 Aug 2021 06:00	112	-	-	-	-	-	-	-
23	21 Aug 2021 12:00	144	-		-	-	-	-	-	United States

Download:

Impact estimation for the next 72h

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Rainfall

810 mm

Up to 2.8 million can be affected rain lower than 100mm

Rain exposed population - AoIs

Estimations based on the bulletin of 21 Aug 2021 12:00 UTC

Level	Country	Population
100-250 mm	United States	1,275,365
50-100 mm	United States	2,846,492

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	16 Aug 2021 00:00	24	-	-	-	-	-	-	-
2	16 Aug 2021 06:00	23	-	-	-	-	-	-	-
3	16 Aug 2021 12:00	124	-	-	-	-	-	-	-
4	16 Aug 2021 18:00	119	-	-	-	-	-	-	-
5	17 Aug 2021 00:00	35	-	-	-	-	-	-	-
6	17 Aug 2021 06:00	130	-	-	-	-	-	-	-
7	17 Aug 2021 12:00	77	-	-	-	-	-	-	-
8	17 Aug 2021 18:00	48	-	-	-	-	-	-	-
9	18 Aug 2021 00:00	86	-	-	-	-	-	-	-
10	18 Aug 2021 06:00	74	-	-	-	-	-	-	-
11	18 Aug 2021 12:00	134	-	-	-	-	-	-	-
12	18 Aug 2021 18:00	132	-	-	-	-	-	-	-
13	19 Aug 2021 00:00	126	-		-	-	-	-	-	United States
14	19 Aug 2021 06:00	120	-		-	-	-	-	-	United States
15	19 Aug 2021 12:00	139	-		-	-	-	-	-	United States
16	19 Aug 2021 18:00	160	-	-	-	-	-	-	-
17	20 Aug 2021 00:00	141	-	-	-	-	-	-	-
18	20 Aug 2021 06:00	113	-	-	-	-	-	-	-
19	20 Aug 2021 12:00	221	-	-	-	-	-	-	-
20	20 Aug 2021 18:00	153	-	-	-	-	-	-	-
21	21 Aug 2021 00:00	121	-	-	-	-	-	-	-
22	21 Aug 2021 06:00	117	-	-	-	-	-	-	-
23	21 Aug 2021 12:00	372	1.3 million			-	-	-	-	United States

Impact estimation for the next 72h

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StormSurge

0.2 m

The maximum Storm surge height is 0.2m in Kendalls Corner, United States. This height is estimated for 21 Aug 2021 12:30 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

Storm Surge Exposed locations

Calculation based on the bulletin of 21 Aug 2021 12:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	21 Aug 2021 12:30	Kendalls Corner	United States	0.2
	21 Aug 2021 12:30	Camden	United States	0.2
	21 Aug 2021 12:30	Hayford Corner	United States	0.2
	21 Aug 2021 12:30	Holmes Mill	United States	0.2
	21 Aug 2021 12:30	Stevens Corner	United States	0.2
	21 Aug 2021 12:30	Simpsons Corner	United States	0.2
	21 Aug 2021 12:30	City Point	United States	0.2
	21 Aug 2021 12:30	Dog Island Corner	United States	0.2
	21 Aug 2021 12:30	Greenlaws Corner	United States	0.2
	21 Aug 2021 12:30	Lincolnville	United States	0.2
	21 Aug 2021 12:30	Herricks Corner	United States	0.2
	21 Aug 2021 12:30	Belfast	United States	0.2
	21 Aug 2021 12:30	Shermans Corner	United States	0.2
	21 Aug 2021 12:30	Bayside	United States	0.2
	21 Aug 2021 12:30	Searsport	United States	0.2
	21 Aug 2021 12:30	Dark Harbor	United States	0.2
	21 Aug 2021 12:30	Isleboro	United States	0.2
	21 Aug 2021 12:30	North Islesboro	United States	0.2
	21 Aug 2021 12:30	Castine	United States	0.2
	21 Aug 2021 12:30	Stockton Springs	United States	0.2
	21 Aug 2021 12:30	Sandy Point	United States	0.2
	21 Aug 2021 12:30	Goose Falls	United States	0.2
	21 Aug 2021 12:30	Fort George	United States	0.2
	21 Aug 2021 12:30	Cape Rosier	United States	0.2
	21 Aug 2021 12:30	West Penobscot	United States	0.2
	21 Aug 2021 12:30	Flat Landing	United States	0.2
	21 Aug 2021 12:15	Pulpit Harbor	United States	0.1
	21 Aug 2021 12:15	Goose Rocks	United States	0.1
	21 Aug 2021 12:15	Stover Corner	United States	0.1
	21 Aug 2021 12:15	Eggemoggin	United States	0.1
	21 Aug 2021 12:15	Herricks	United States	0.1
	21 Aug 2021 12:15	Sunset	United States	0.1
	21 Aug 2021 12:15	Deer Isle	United States	0.1
	21 Aug 2021 12:15	Black Corner	United States	0.1
	21 Aug 2021 12:15	Sargentville	United States	0.1
	21 Aug 2021 12:15	Stonington	United States	0.1
	21 Aug 2021 16:45	Barco	United States	0.1
	21 Aug 2021 16:45	Coinjock	United States	0.1
	21 Aug 2021 16:45	Waterlilly	United States	0.1
	21 Aug 2021 16:45	Knotts Island	United States	0.1
	21 Aug 2021 16:45	Bertha	United States	0.1
	21 Aug 2021 16:45	Aydlett	United States	0.1
	21 Aug 2021 16:45	Poplar Branch	United States	0.1
	21 Aug 2021 16:45	Grandy	United States	0.1
	21 Aug 2021 16:45	Jarvisburg	United States	0.1
	21 Aug 2021 16:45	Corolla	United States	0.1
	21 Aug 2021 16:45	Caffys Inlet Hamlet	United States	0.1
	21 Aug 2021 18:00	Port Greville	Canada	0.1
	21 Aug 2021 18:00	Canning	Canada	0.1
	21 Aug 2021 18:00	Scots Bay	Canada	0.1
	21 Aug 2021 18:00	Kingsport	Canada	0.1
	21 Aug 2021 18:00	Parrsboro	Canada	0.1
	21 Aug 2021 14:15	Evanston	Canada	0.1
	21 Aug 2021 14:15	Half Island Cove	Canada	0.1
	21 Aug 2021 14:15	Arichat	Canada	0.1
	21 Aug 2021 14:15	Canso	Canada	0.1
	21 Aug 2021 14:15	D'Escousse	Canada	0.1
	21 Aug 2021 12:15	Christian Town	United States	0.1
	21 Aug 2021 12:15	West Tisbury	United States	0.1
	21 Aug 2021 12:15	North Tisbury	United States	0.1
	21 Aug 2021 12:15	Woods Hole	United States	0.1
	21 Aug 2021 12:15	Lamberts Cove	United States	0.1
	21 Aug 2021 12:15	Quansoo	United States	0.1
	21 Aug 2021 12:15	Makonikey	United States	0.1
	21 Aug 2021 12:15	Quissett	United States	0.1
	21 Aug 2021 12:15	Sippowisset	United States	0.1
	21 Aug 2021 12:15	Vineyard Haven	United States	0.1
	21 Aug 2021 12:15	West Chop	United States	0.1
	21 Aug 2021 12:15	Falmouth	United States	0.1
	21 Aug 2021 12:15	Oklahoma Heights	United States	0.1
	21 Aug 2021 12:15	Teaticket	United States	0.1
	21 Aug 2021 12:15	Oak Bluffs	United States	0.1
	21 Aug 2021 12:15	East Falmouth	United States	0.1
	21 Aug 2021 12:15	Jerneganville	United States	0.1
	21 Aug 2021 12:15	Edgartown	United States	0.1
	21 Aug 2021 12:15	Waquoit	United States	0.1
	21 Aug 2021 12:15	Katama	United States	0.1
	21 Aug 2021 12:15	Monomoscoy Island	United States	0.1
	21 Aug 2021 12:15	Wepua Point	United States	0.1
	21 Aug 2021 12:15	Popponesset Island	United States	0.1
	21 Aug 2021 14:15	Port Hawkesbury	Canada	0.1
	21 Aug 2021 14:15	Point Tupper	Canada	0.1
	21 Aug 2021 14:30	Larry's River	Canada	0.1
	21 Aug 2021 14:30	Whitehead	Canada	0.1
	21 Aug 2021 13:30	Mahone Bay	Canada	0.1
	21 Aug 2021 13:30	La Have	Canada	0.1
	21 Aug 2021 13:30	Lunenburg	Canada	0.1
	21 Aug 2021 14:00	Petit-de-Grat	Canada	0.1
	21 Aug 2021 14:00	Saint Peters	Canada	0.1
	21 Aug 2021 14:00	L'Ardoise	Canada	0.1
	21 Aug 2021 14:00	Soldiers Cove	Canada	0.1
	21 Aug 2021 17:45	Laughing Waters	United States	0.1
	21 Aug 2021 17:45	Beixedon Estates	United States	0.1
	21 Aug 2021 17:45	North Sea	United States	0.1
	21 Aug 2021 17:45	Tuckahoe	United States	0.1
	21 Aug 2021 17:45	Reydon Shores	United States	0.1
	21 Aug 2021 17:45	Hampton Park	United States	0.1
	21 Aug 2021 17:45	Southampton	United States	0.1
	21 Aug 2021 17:45	Rose Grove	United States	0.1
	21 Aug 2021 17:45	Arshamonaque	United States	0.1
	21 Aug 2021 17:45	Greenport West	United States	0.1
	21 Aug 2021 17:45	Deerfield	United States	0.1
	21 Aug 2021 17:45	Greenport	United States	0.1
	21 Aug 2021 17:45	Cobb	United States	0.1
	21 Aug 2021 17:45	Flying Point	United States	0.1
	21 Aug 2021 17:45	Montclair Colony	United States	0.1
	21 Aug 2021 17:45	Watermill	United States	0.1
	21 Aug 2021 17:45	Shelter Island Heights	United States	0.1
	21 Aug 2021 17:45	East Marion	United States	0.1
	21 Aug 2021 17:45	Dering Harbor	United States	0.1
	21 Aug 2021 17:45	Noyack	United States	0.1
	21 Aug 2021 17:45	Hayground	United States	0.1
	21 Aug 2021 17:45	Shelter Island	United States	0.1
	21 Aug 2021 17:45	North Haven	United States	0.1
	21 Aug 2021 17:45	Bay Point	United States	0.1
	21 Aug 2021 17:45	Bridgehampton	United States	0.1
	21 Aug 2021 17:45	Mecox	United States	0.1
	21 Aug 2021 17:45	Sag Harbor	United States	0.1
	21 Aug 2021 17:45	Sagaponack	United States	0.1
	21 Aug 2021 17:45	Orient Point	United States	0.1
	21 Aug 2021 17:45	Northwest Landing	United States	0.1
	21 Aug 2021 17:45	Wainscott	United States	0.1
	21 Aug 2021 17:45	Alewife Brook Landing	United States	0.1
	21 Aug 2021 17:45	Hardscrabble	United States	0.1
	21 Aug 2021 17:45	Northwest Harbor	United States	0.1
	21 Aug 2021 17:45	Apaquogue	United States	0.1
	21 Aug 2021 17:45	Lafarges Landing	United States	0.1
	21 Aug 2021 17:45	East Hampton	United States	0.1
	21 Aug 2021 17:45	Threemile Harbor	United States	0.1
	21 Aug 2021 17:45	East Hampton North	United States	0.1
	21 Aug 2021 17:45	Maidstone Park	United States	0.1
	21 Aug 2021 17:45	Kingstown	United States	0.1
	21 Aug 2021 17:45	Springs	United States	0.1
	21 Aug 2021 17:45	Fireplace	United States	0.1
	21 Aug 2021 17:45	Amagansett	United States	0.1
	21 Aug 2021 17:45	Barnes Hole	United States	0.1
	21 Aug 2021 17:45	Abrams Landing	United States	0.1
	21 Aug 2021 18:00	Pleasant Plains	United States	0.1
	21 Aug 2021 18:00	Rossville	United States	0.1
	21 Aug 2021 18:00	Fresh Kills	United States	0.1
	21 Aug 2021 18:00	Annadale	United States	0.1
	21 Aug 2021 18:00	Great Kills	United States	0.1
	21 Aug 2021 18:00	Staten Island	United States	0.1
	21 Aug 2021 18:00	Bayonne	United States	0.1
	21 Aug 2021 18:00	Oakwood Beach	United States	0.1
	21 Aug 2021 18:00	West New Brighton	United States	0.1
	21 Aug 2021 18:00	Richmond	United States	0.1
	21 Aug 2021 18:00	Emerson Hill	United States	0.1
	21 Aug 2021 18:00	Greenville	United States	0.1
	21 Aug 2021 18:00	Saint George	United States	0.1
	21 Aug 2021 18:00	Clifton	United States	0.1
	21 Aug 2021 18:00	Arrochar	United States	0.1
	21 Aug 2021 18:00	Jersey City	United States	0.1
	21 Aug 2021 18:00	Croxton	United States	0.1
	21 Aug 2021 18:00	Communipaw	United States	0.1
	21 Aug 2021 18:00	Fort Hamilton	United States	0.1
	21 Aug 2021 18:00	Hoboken	United States	0.1
	21 Aug 2021 18:00	Bay Ridge	United States	0.1
	21 Aug 2021 18:00	Red Hook	United States	0.1
	21 Aug 2021 18:00	New York	United States	0.1
	21 Aug 2021 18:00	Bath Beach	United States	0.1
	21 Aug 2021 18:00	Fort Hancock	United States	0.1
	21 Aug 2021 18:00	Coney Island	United States	0.1
	21 Aug 2021 18:00	Park Slope	United States	0.1
	21 Aug 2021 18:00	Manhattan	United States	0.1
	21 Aug 2021 18:00	Gravesend	United States	0.1
	21 Aug 2021 18:00	Adelphi	United States	0.1
	21 Aug 2021 18:00	Brighton Beach	United States	0.1
	21 Aug 2021 18:00	Greenpoint	United States	0.1
	21 Aug 2021 18:00	Sunnyside	United States	0.1
	21 Aug 2021 18:00	Flatlands	United States	0.1
	21 Aug 2021 18:00	Astoria	United States	0.1
	21 Aug 2021 18:00	Breezy Point	United States	0.1
	21 Aug 2021 18:00	Gerritsen	United States	0.1
	21 Aug 2021 18:00	Haberman	United States	0.1
	21 Aug 2021 18:00	Bergen Beach	United States	0.1
	21 Aug 2021 18:00	Woodside	United States	0.1
	21 Aug 2021 18:00	Steinway	United States	0.1
	21 Aug 2021 13:00	Fourchu	Canada	0.1
	21 Aug 2021 13:00	Gabarus	Canada	0.1
	21 Aug 2021 17:00	Red Bank	United States	0.1
	21 Aug 2021 17:00	Cheapside	United States	0.1
	21 Aug 2021 17:00	Bayview	United States	0.1
	21 Aug 2021 17:00	Cape Center	United States	0.1
	21 Aug 2021 17:00	Cheriton	United States	0.1
	21 Aug 2021 17:00	Cedar Grove	United States	0.1
	21 Aug 2021 17:00	Fairview	United States	0.1
	21 Aug 2021 17:00	Townsend	United States	0.1
	21 Aug 2021 17:00	Capeville	United States	0.1
	21 Aug 2021 17:00	Kiptopeke	United States	0.1
	21 Aug 2021 17:00	Beverly	United States	0.1
	21 Aug 2021 17:00	Oyster	United States	0.1
	21 Aug 2021 18:00	Leeds Point	United States	0.1
	21 Aug 2021 18:00	Mystic Island	United States	0.1
	21 Aug 2021 18:00	Brigantine	United States	0.1
	21 Aug 2021 18:00	Tuckerton	United States	0.1
	21 Aug 2021 18:00	West Creek	United States	0.1
	21 Aug 2021 18:00	Holgate	United States	0.1
	21 Aug 2021 18:00	Beach Haven	United States	0.1
	21 Aug 2021 18:00	Spray Beach	United States	0.1
	21 Aug 2021 18:00	North Beach Haven	United States	0.1
	21 Aug 2021 18:00	Brant Beach	United States	0.1
	21 Aug 2021 18:00	Ship Bottom	United States	0.1
	21 Aug 2021 13:45	Grand River	Canada	0.1
	21 Aug 2021 17:00	Strathmore	United States	0.1
	21 Aug 2021 17:00	Cliffwood Beach	United States	0.1
	21 Aug 2021 17:00	Keyport	United States	0.1
	21 Aug 2021 17:00	Hazlet	United States	0.1
	21 Aug 2021 17:00	Union Beach	United States	0.1
	21 Aug 2021 17:00	Centerville	United States	0.1
	21 Aug 2021 17:00	Philips Mills	United States	0.1
	21 Aug 2021 17:00	Keansburg	United States	0.1
	21 Aug 2021 17:00	North Middletown	United States	0.1
	21 Aug 2021 17:00	East Keansburg	United States	0.1
	21 Aug 2021 17:00	New Monmouth	United States	0.1
	21 Aug 2021 17:00	Port Monmouth	United States	0.1
	21 Aug 2021 17:00	Belford	United States	0.1
	21 Aug 2021 17:00	Chapel Hill	United States	0.1
	21 Aug 2021 17:00	Leonardo	United States	0.1
	21 Aug 2021 17:00	Navesink	United States	0.1
	21 Aug 2021 17:00	Atlantic Highlands	United States	0.1
	21 Aug 2021 17:00	Locust	United States	0.1
	21 Aug 2021 17:00	Rumson	United States	0.1
	21 Aug 2021 17:00	Highlands	United States	0.1
	21 Aug 2021 17:00	Monmouth Beach	United States	0.1
	21 Aug 2021 17:00	Normandie	United States	0.1
	21 Aug 2021 17:00	Sea Bright	United States	0.1
	21 Aug 2021 18:00	Ocracoke	United States	0.1
	21 Aug 2021 18:00	Widgen Woods	United States	0.1

Disclaimer
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.