Overall Green alert Tropical Cyclone for JULIAN-21
Off-shore
30 Aug 2021 12 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

Tropical Cyclone JULIAN-21 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source ECMWF
Exposed countries Canada
Exposed population No people in Category 1 or higher
Maximum wind speed 72 km/h
Maximum storm surge 1.3 m (29 Aug 16:45 UTC)
Vulnerability --

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
ECMWF Current 72 km/h 1.3 m 132 mm 0.5
ECMWF Overall 72 km/h 1.3 m 132 mm 0.5

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

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Wind

72 km/h

Up to Few people can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 30 Aug 2021 12:00 UTC
CategoryCountryPopulation 
Tropical StormCanada628 

See TC classification SSHS


Wind Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert 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
GREEN 1 28 Aug 2021 12:00 65 -
- - - - - Canada
GREEN 2 29 Aug 2021 00:00 61 - - - - - - -
GREEN 3 29 Aug 2021 12:00 83 - - - - - - -
GREEN 4 30 Aug 2021 00:00 76 - - - - - - -
GREEN 5 30 Aug 2021 12:00 72 - - - - - - -
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 30 Aug 2021 12:00 UTC
LevelCountryPopulation 
100-250 mmPortugal16,476 
50-100 mmPortugal12,344 

Rain Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert N° Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 28 Aug 2021 12:00 69 - - - - - - -
Blue 2 29 Aug 2021 00:00 83 - - - - - - -
Blue 3 29 Aug 2021 12:00 132 - - - - - - -
Blue 4 30 Aug 2021 00:00 141 - - - - - - -
Blue 5 30 Aug 2021 12:00 132 -
- - - - - Portugal




Impact estimation for the next 72h
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StormSurge

1.3 m

The maximum Storm surge height is  1.3m in Great Brule, Canada. This height is estimated for 29 Aug 2021 16:45 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

Estimations based on the bulletin of 30 Aug 2021 12:00 UTC
LevelCountryPopulation 
1.0 - 2.0 mCanada706 
0.5 - 1.0 mCanada, Saint Pierre and Miquelon10,399
+
Canada9,957 
Saint Pierre and Miquelon441 
0.25 - 0.5 mCanada, Saint Pierre and Miquelon11,263
+
Canada10,123 
Saint Pierre and Miquelon1,139 

Storm Surge Exposed locations

Calculation based on the bulletin of 30 Aug 2021 12:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
29 Aug 2021 16:45 Great Brule Canada  1.3
29 Aug 2021 16:45 Spencers Cove Canada  1.3
29 Aug 2021 16:45 Come By Chance Canada  1.3
29 Aug 2021 16:45 Sunnyside Canada  1.3
29 Aug 2021 16:45 Chance Cove Canada  1.3
29 Aug 2021 16:45 Woody Island Canada  1.3
29 Aug 2021 16:45 Sound Island Canada  1.3
29 Aug 2021 16:45 Swift Current Canada  1.2
29 Aug 2021 20:45 Tacks Beach Canada  1.0
31 Aug 2021 15:15 Bartletts Harbour Canada  0.9
31 Aug 2021 15:15 Bird Cove Canada  0.9
31 Aug 2021 15:15 Saint Barbe Canada  0.9
29 Aug 2021 20:45 Harbour Buffet Canada  0.9
31 Aug 2021 17:45 Bellevue Canada  0.8
31 Aug 2021 17:45 Chapel Arm Canada  0.8
31 Aug 2021 17:45 Dildo Canada  0.8
31 Aug 2021 17:45 New Harbour Canada  0.8
31 Aug 2021 17:45 Greens Harbour Canada  0.8
31 Aug 2021 17:45 Cavendish Canada  0.8
29 Aug 2021 19:15 Seal Cove Canada  0.8
29 Aug 2021 19:15 Little Bay Canada  0.8
29 Aug 2021 19:15 Hermitage-Sandy Hill Canada  0.8
29 Aug 2021 19:15 Hermitage Canada  0.8
29 Aug 2021 19:15 Harbour Breton Canada  0.8
31 Aug 2021 17:45 Heart's Delight-Islington Canada  0.8
31 Aug 2021 17:45 Heart's Content Canada  0.7
31 Aug 2021 17:45 Little Heart's Ease Canada  0.7
01 Sep 2021 06:45 Hickman's Harbour Canada  0.7
01 Sep 2021 06:45 Southport Canada  0.7
01 Sep 2021 06:45 Deer Harbour Canada  0.7
31 Aug 2021 15:15 Flower Cove Canada  0.7
01 Sep 2021 06:45 New Perlican Canada  0.7
01 Sep 2021 06:45 Winterton Canada  0.7
31 Aug 2021 17:45 Saint Jones Within Canada  0.7
01 Sep 2021 06:45 Hants Harbour Canada  0.7
01 Sep 2021 06:45 Victoria Canada  0.7
29 Aug 2021 20:45 Clattice Harbour Canada  0.7
29 Aug 2021 20:45 Monkstown Canada  0.7
01 Sep 2021 06:45 Burgoynes Cove Canada  0.7
01 Sep 2021 06:45 Ivanhoe Canada  0.7
01 Sep 2021 06:45 Old Bonaventure Canada  0.6
01 Sep 2021 16:30 Forteau Canada  0.6
01 Sep 2021 16:30 L' Anse-au-Loup Canada  0.6
01 Sep 2021 16:15 Little Bay Canada  0.6
01 Sep 2021 16:15 Port Anson Canada  0.6
01 Sep 2021 16:15 Roberts Arm Canada  0.6
01 Sep 2021 16:15 Little Bay Island Canada  0.6
01 Sep 2021 16:15 Lushes Bight Canada  0.6
01 Sep 2021 16:15 Pilley's Island Canada  0.6
01 Sep 2021 16:15 Beaumont Canada  0.6
01 Sep 2021 16:45 Green Island Cove Canada  0.6
01 Sep 2021 06:45 Brownsdale Canada  0.6
29 Aug 2021 20:45 Merasheen Canada  0.6
29 Aug 2021 20:45 Red Island Canada  0.6
01 Sep 2021 16:00 Eddies Cove Canada  0.6
29 Aug 2021 18:30 Grand Bank Canada  0.6
29 Aug 2021 18:30 Grand Beach Canada  0.6
31 Aug 2021 15:00 Cooks Harbour Canada  0.6
31 Aug 2021 15:00 Raleigh Canada  0.6
31 Aug 2021 15:00 Ship Cove Canada  0.6
01 Sep 2021 16:30 West St Modeste Canada  0.6
01 Sep 2021 16:30 Pinware Canada  0.6
30 Aug 2021 05:45 Little Barasway Canada  0.6
30 Aug 2021 05:45 Placentia Canada  0.6
30 Aug 2021 05:45 Argentia Canada  0.6
30 Aug 2021 05:45 Dunville Canada  0.6
30 Aug 2021 05:45 Fox Harbour Canada  0.6
01 Sep 2021 16:45 Change Islands Canada  0.6
01 Sep 2021 16:45 Frederickton Canada  0.6
01 Sep 2021 16:45 Island Harbour Canada  0.6
01 Sep 2021 16:45 Little Seldom Canada  0.6
01 Sep 2021 16:45 Fogo Canada  0.6
01 Sep 2021 16:45 Seldom Canada  0.6
01 Sep 2021 16:45 Joe Batt's Arm Canada  0.6
29 Aug 2021 17:45 Pools Cove Canada  0.6
29 Aug 2021 17:45 Belleoram Canada  0.6
29 Aug 2021 17:45 Rencontre East Canada  0.6
01 Sep 2021 06:45 Southern Bay Canada  0.6
01 Sep 2021 06:45 Princeton Canada  0.6
01 Sep 2021 06:45 Trinity Canada  0.6
01 Sep 2021 06:45 Port Rexton Canada  0.6
31 Aug 2021 15:00 North Boat Harbour Canada  0.6
01 Sep 2021 16:30 Leading Tickles Canada  0.5
01 Sep 2021 16:30 Leading Tickles South Canada  0.5
01 Sep 2021 16:30 Point Leamington Canada  0.5
01 Sep 2021 16:30 Paradise Cove Canada  0.5
01 Sep 2021 16:30 Cottrells Cove Canada  0.5
01 Sep 2021 16:15 Red Bay Canada  0.5
29 Aug 2021 18:00 Fortune Canada  0.5
01 Sep 2021 16:45 Gander Bay Canada  0.5
01 Sep 2021 16:45 Carmanville Canada  0.5
28 Aug 2021 16:45 Moreton's Harbour Canada  0.5
28 Aug 2021 16:45 Summerford Canada  0.5
28 Aug 2021 16:45 Birchy Bay Canada  0.5
28 Aug 2021 16:45 Boyds Cove Canada  0.5
01 Sep 2021 07:00 Old Perlican Canada  0.5
01 Sep 2021 07:00 Lower Island Cove Canada  0.5
01 Sep 2021 07:00 Caplin Cove Canada  0.5
29 Aug 2021 18:15 Garnish Canada  0.5
29 Aug 2021 18:15 Barrasway de Plate Canada  0.5
29 Aug 2021 18:00 Marystown Canada  0.5
29 Aug 2021 18:15 English Harbour West Canada  0.5
31 Aug 2021 16:00 Big Brook Canada  0.5
29 Aug 2021 18:30 Saint Pierre St. Pierre and Miquelon  0.5
28 Aug 2021 16:15 Grady Harbour Canada  0.5
01 Sep 2021 02:15 Indian Tickle Canada  0.5
01 Sep 2021 16:45 Triton West Canada  0.5
01 Sep 2021 16:45 Sop's Arm Canada  0.5
01 Sep 2021 16:45 Browns Cove Canada  0.5
01 Sep 2021 16:45 Jackson's Arm Canada  0.5
01 Sep 2021 16:45 Purbeck's Cove Canada  0.5
01 Sep 2021 16:45 Westport Canada  0.5
01 Sep 2021 16:45 Bear Cove Canada  0.5
28 Aug 2021 17:00 Ladle Cove Canada  0.5
28 Aug 2021 17:00 Musgrove Harbour Canada  0.5
30 Aug 2021 17:45 Herring Neck Canada  0.5
30 Aug 2021 17:45 Hornwood Canada  0.5
30 Aug 2021 17:45 Port Albert Canada  0.5
30 Aug 2021 17:45 Victoria Cove Canada  0.5
01 Sep 2021 06:30 Grates Cove Canada  0.5
01 Sep 2021 06:30 Bay de Verde Canada  0.5
29 Aug 2021 14:45 Mosquito Canada  0.5
29 Aug 2021 14:45 Admirals Beach Canada  0.5
29 Aug 2021 14:45 Gaskiers Canada  0.5
29 Aug 2021 14:45 Saint Mary's Canada  0.5
29 Aug 2021 14:45 Riverhead Canada  0.5
29 Aug 2021 14:45 Saint Josephs Canada  0.5
01 Sep 2021 16:30 Coney Arm Canada  0.5
01 Sep 2021 16:45 Harry's Harbour Canada  0.5
02 Sep 2021 09:15 Pass Island Canada  0.5
02 Sep 2021 09:15 Pushthrough Canada  0.5
02 Sep 2021 09:45 Miqeulon St. Pierre and Miquelon  0.5
01 Sep 2021 16:30 Seal Cove Canada  0.5
02 Sep 2021 10:00 Francois Canada  0.5
29 Aug 2021 14:45 Saint Vincent's Canada  0.5
01 Sep 2021 16:45 Nipper's Harbour Canada  0.5
01 Sep 2021 16:45 Conche Canada  0.4
01 Sep 2021 16:45 Croque Canada  0.4
01 Sep 2021 16:45 Saint Juliens Canada  0.4
01 Sep 2021 16:30 Wild Cove Canada  0.4
28 Aug 2021 15:45 Packs Harbour Canada  0.4
01 Sep 2021 16:00 Main Brook Canada  0.4
01 Sep 2021 16:15 Round Harbour Canada  0.4
01 Sep 2021 16:15 Tilt Cove Canada  0.4
01 Sep 2021 16:15 La Scie Canada  0.4
01 Sep 2021 16:15 Shoe Cove Canada  0.4
01 Sep 2021 16:45 Little Harbour Deep Canada  0.4
02 Sep 2021 09:15 McCallum Canada  0.4
01 Sep 2021 16:30 Bauline Canada  0.4
01 Sep 2021 16:30 Pouch Cove Canada  0.4
01 Sep 2021 16:30 Torbay Canada  0.4
01 Sep 2021 16:30 Flat Rock Canada  0.4
01 Sep 2021 16:30 St. John's Canada  0.4
29 Aug 2021 21:00 Ship Cove Canada  0.4
01 Sep 2021 06:30 Port Union Canada  0.4
01 Sep 2021 06:30 Catalina Canada  0.4
01 Sep 2021 16:45 Grey Islands Harbour Canada  0.4
01 Sep 2021 16:30 Williamsport Canada  0.4
01 Sep 2021 16:30 Canada Harbour Canada  0.4
01 Sep 2021 16:30 Englee Canada  0.4
01 Sep 2021 17:30 Exploits Canada  0.4
01 Sep 2021 16:45 Baie Verte Canada  0.4
02 Sep 2021 09:45 Point Crewe Canada  0.4
02 Sep 2021 09:45 Point May Canada  0.4
01 Sep 2021 16:45 Roddickton Canada  0.4
02 Sep 2021 10:00 Rencontre West Canada  0.4
01 Sep 2021 17:00 Burlington Canada  0.4
01 Sep 2021 17:15 Fleur de Lys Canada  0.4
01 Sep 2021 17:15 Coachman's Cove Canada  0.4
01 Sep 2021 17:15 Woodstock Canada  0.4
01 Sep 2021 17:15 Pacquet Canada  0.4
29 Aug 2021 14:45 Branch Canada  0.4
01 Sep 2021 16:30 Great Harbour Deep Canada  0.4
01 Sep 2021 02:45 Holyrood Canada  0.4
01 Sep 2021 02:45 Indian Pond Canada  0.4
01 Sep 2021 02:45 Kelligrews Canada  0.4
01 Sep 2021 02:45 Foxtrap Canada  0.4
01 Sep 2021 02:45 Bell Island Canada  0.4
01 Sep 2021 02:45 Wabana Canada  0.4
01 Sep 2021 02:45 Topsail Canada  0.4
01 Sep 2021 02:45 Portugal Cove Canada  0.4
28 Aug 2021 16:45 Twillingate Canada  0.4
29 Aug 2021 19:30 Saint Shotts Canada  0.4
31 Aug 2021 18:15 Trepassey Canada  0.4
31 Aug 2021 18:15 Portugal Cove South Canada  0.4
01 Sep 2021 06:15 Bay Roberts Canada  0.4
01 Sep 2021 06:15 Harbour Grace Canada  0.4
01 Sep 2021 06:15 Conception Harbour Canada  0.4
01 Sep 2021 06:15 Colliers Canada  0.4
01 Sep 2021 06:15 Carbonear Canada  0.4
01 Sep 2021 06:15 Brigus Canada  0.4
01 Sep 2021 06:15 Upper Island Cove Canada  0.4
01 Sep 2021 06:15 Harbour Main Canada  0.4
01 Sep 2021 16:45 Tilting Canada  0.4
01 Sep 2021 16:15 Horse Islands Canada  0.4
02 Sep 2021 06:15 Newman's Cove Canada  0.4
02 Sep 2021 06:15 Bonavista Canada  0.4
02 Sep 2021 06:15 Elliston Canada  0.4
01 Sep 2021 06:15 Freshwater Canada  0.4
01 Sep 2021 06:15 Salmon Cove Canada  0.4
01 Sep 2021 06:15 Perrys Cove Canada  0.4
01 Sep 2021 07:30 Marys Harbour Canada  0.4
01 Sep 2021 07:30 Lodge Bay Canada  0.4
01 Sep 2021 07:30 Saint Lewis Canada  0.4
01 Sep 2021 07:30 Spear Harbour Canada  0.4
01 Sep 2021 07:30 Loran Canada  0.4
01 Sep 2021 07:30 Battle Harbour Canada  0.4
29 Aug 2021 19:45 Point Lance Canada  0.4
01 Sep 2021 16:15 Henley Harbour Canada  0.4
30 Aug 2021 15:00 Rexons Cove Canada  0.4
30 Aug 2021 15:00 Georges Cove Canada  0.4
30 Aug 2021 15:00 Snug Harbour Canada  0.4
30 Aug 2021 15:00 Square Island Canada  0.4
30 Aug 2021 15:00 Fishing Ships Harbour Canada  0.4
01 Sep 2021 16:15 Goose Cove Canada  0.4
29 Aug 2021 21:00 Angels Cove Canada  0.4
01 Sep 2021 19:00 Rock Harbour Canada  0.4
01 Sep 2021 19:00 Baine Harbour Canada  0.4
01 Sep 2021 19:00 Parkers Cove Canada  0.4
02 Sep 2021 06:15 Badger's Quay Canada  0.4
02 Sep 2021 06:15 Lumsden Canada  0.4
02 Sep 2021 06:15 Greenspond Canada  0.4
02 Sep 2021 06:15 Wesleyville Canada  0.4
02 Sep 2021 06:15 Newtown Canada  0.4
02 Sep 2021 06:15 Cape Freels Canada  0.4
01 Sep 2021 06:45 Saint Brendan's Canada  0.4
01 Sep 2021 07:00 Carrolls Cove Canada  0.4
31 Aug 2021 17:30 Fermeuse Canada  0.4
31 Aug 2021 17:30 Cappahayden Canada  0.4
31 Aug 2021 17:30 Renews Canada  0.4
01 Sep 2021 17:15 Batteau Harbour Canada  0.4
01 Sep 2021 17:15 Spotted Island Canada  0.4
01 Sep 2021 17:15 Black Tickle Canada  0.4
01 Sep 2021 06:15 Western Bay Canada  0.4
02 Sep 2021 06:30 Plate Cove Canada  0.4
02 Sep 2021 06:30 Tickle Cove Canada  0.4
02 Sep 2021 06:30 Open Hall Canada  0.4
02 Sep 2021 06:30 Keels Canada  0.4
29 Aug 2021 21:15 Saint Josephs Canada  0.4
31 Aug 2021 17:30 Cape Race Canada  0.4
29 Aug 2021 19:45 Saint Bride's Canada  0.4
01 Sep 2021 15:00 Williams Harbour Canada  0.3
01 Sep 2021 16:30 Saint Lunaire-Griquet Canada  0.3
01 Sep 2021 16:30 Quirpon Canada  0.3
31 Aug 2021 17:30 Ferryland Canada  0.3
02 Sep 2021 10:00 Lamaline Canada  0.3
01 Sep 2021 16:15 Saint Anthony Canada  0.3
01 Sep 2021 16:15 Great Brehat Canada  0.3
01 Sep 2021 16:15 Saint Anthony Bight Canada  0.3
02 Sep 2021 06:30 Salvage Canada  0.3
01 Sep 2021 16:00 Tors Cove Canada  0.3
01 Sep 2021 16:00 Mobile Canada  0.3
01 Sep 2021 16:00 Witless Bay Canada  0.3
01 Sep 2021 16:00 Bay Bulls Canada  0.3
01 Sep 2021 16:00 Petty Harbour Canada  0.3
29 Aug 2021 06:15 Cape Broyle Canada  0.3
01 Sep 2021 15:45 Flat Islands Canada  0.3
01 Sep 2021 15:45 Frenchmans Island Canada  0.3
31 Aug 2021 20:15 Lawn Canada  0.3
31 Aug 2021 19:30 Burin Canada  0.3
28 Aug 2021 19:00 Little Burnt Bay Canada  0.3
28 Aug 2021 19:00 Lewisporte Canada  0.3
28 Aug 2021 19:00 Campbellton Canada  0.3
28 Aug 2021 19:00 Loon Bay Canada  0.3
31 Aug 2021 20:15 Saint Lawrence Canada  0.3
01 Sep 2021 07:15 Venison Island Canada  0.3
01 Sep 2021 07:15 Comfort Bight Canada  0.3
31 Aug 2021 01:30 Madalena Portugal  0.1
31 Aug 2021 01:30 Candelaria Portugal  0.1
31 Aug 2021 01:30 S. Mateus Portugal  0.1
31 Aug 2021 01:30 Cachorro Portugal  0.1
31 Aug 2021 01:30 'Companhia de Baixo' Portugal  0.1
31 Aug 2021 01:30 Sao Roque do Pico Portugal  0.1
30 Aug 2021 15:00 Horta Portugal  0.1
30 Aug 2021 15:00 Ribeirinha Portugal  0.1
01 Sep 2021 02:30 Beira Mar Portugal  0.1
01 Sep 2021 02:30 Santa Cruz da Graciosa Portugal  0.1
02 Sep 2021 02:00 Feteira Portugal  0.1
02 Sep 2021 02:00 Vila Nova Portugal  0.1
02 Sep 2021 02:00 Baia da Vila Portugal  0.1
02 Sep 2021 02:00 Praia da Vitoria Portugal  0.1
01 Sep 2021 11:45 'Ribeira Seca' Portugal  0.1
01 Sep 2021 11:45 'Barreiras' Portugal  0.1
01 Sep 2021 11:45 'Topo' Portugal  0.1
01 Sep 2021 11:45 Velas Portugal  0.1
01 Sep 2021 11:45 Prainha de Baixo Portugal  0.1
01 Sep 2021 11:45 Biscoitos Portugal  0.1
01 Sep 2021 11:45 Angra do Heroismo Portugal  0.1
01 Sep 2021 11:45 Angra Portugal  0.1
01 Sep 2021 12:00 Serreta Portugal  0.1
01 Sep 2021 12:00 Santa Barbara Portugal  0.1
01 Sep 2021 11:45 Cedros Portugal  0.1
01 Sep 2021 11:45 Urzelina Portugal  0.1
01 Sep 2021 11:30 'Norte Grande' Portugal  0.1