Overall Green alert Tropical Cyclone for JULIAN-21
Off-shore

Impact

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

Meteorological source GFS
Exposed countries Canada
Exposed population No people in Category 1 or higher
Maximum wind speed 94 km/h
Maximum storm surge 1.4 m (30 Aug 17:15 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
GFS Current 72 km/h 1.0 m 111 mm 0.5
GFS Overall 94 km/h 1.4 m 154 mm 0.5

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

Wind

94 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 18:00 UTC (Overall situation)
CategoryCountryPopulation 
Tropical StormCanada01 

See TC classification SSHS


Wind Impact Timeline

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


Alert 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 29 Aug 2021 00:00 61 -
- - - - - Canada
GREEN 2 29 Aug 2021 06:00 65 - - - - - - -
GREEN 3 29 Aug 2021 12:00 76 - - - - - - -
GREEN 4 29 Aug 2021 18:00 79 - - - - - - -
GREEN 5 30 Aug 2021 00:00 86 - - - - - - -
GREEN 6 30 Aug 2021 06:00 94 - - - - - - -
GREEN 7 30 Aug 2021 12:00 86 - - - - - - -
GREEN 8 30 Aug 2021 18:00 72 - - - - - - -




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

No exposed population (greater than 50mm) based on the bulletin of 30 Aug 2021 18:00 UTC (Overall situation)

Rain Impact Timeline

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


Alert Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 29 Aug 2021 00:00 30 - - - - - - -
Blue 2 29 Aug 2021 06:00 134 - - - - - - -
Blue 3 29 Aug 2021 12:00 113 - - - - - - -
Blue 4 29 Aug 2021 18:00 79 - - - - - - -
Blue 5 30 Aug 2021 00:00 107 - - - - - - -
Blue 6 30 Aug 2021 06:00 104 - - - - - - -
Blue 7 30 Aug 2021 12:00 67 - - - - - - -
Blue 8 30 Aug 2021 18:00 111 - - - - - - -




Impact estimation for the next 72h

StormSurge

1.4 m

The maximum Storm surge height is  1.4m in Great Brule, Canada. This height is estimated for 30 Aug 2021 17:15 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 locations

Calculation based on the bulletin of 30 Aug 2021 18:00 UTC (Overall situation)
    
Alert Date (UTC) Name Country Storm surge height (m)
30 Aug 2021 17:15 Great Brule Canada  1.4
30 Aug 2021 17:15 Spencers Cove Canada  1.4
30 Aug 2021 17:15 Come By Chance Canada  1.4
30 Aug 2021 17:15 Sunnyside Canada  1.4
30 Aug 2021 17:15 Chance Cove Canada  1.4
30 Aug 2021 17:15 Woody Island Canada  1.3
30 Aug 2021 17:15 Sound Island Canada  1.3
30 Aug 2021 17:15 Swift Current Canada  1.3
30 Aug 2021 17:15 Tacks Beach Canada  1.1
30 Aug 2021 17:30 Harbour Buffet Canada  0.9
29 Aug 2021 20:30 Seal Cove Canada  0.9
29 Aug 2021 20:30 Little Bay Canada  0.9
29 Aug 2021 20:30 Hermitage-Sandy Hill Canada  0.9
29 Aug 2021 20:30 Hermitage Canada  0.9
29 Aug 2021 20:30 Harbour Breton Canada  0.9
30 Aug 2021 06:30 Bartletts Harbour Canada  0.8
30 Aug 2021 06:30 Bird Cove Canada  0.8
30 Aug 2021 06:30 Saint Barbe Canada  0.8
30 Aug 2021 06:45 Flower Cove Canada  0.8
30 Aug 2021 04:45 Clattice Harbour Canada  0.7
30 Aug 2021 04:45 Monkstown Canada  0.7
30 Aug 2021 06:45 Forteau Canada  0.7
29 Aug 2021 19:45 Little Barasway Canada  0.7
29 Aug 2021 19:45 Placentia Canada  0.7
29 Aug 2021 19:45 Argentia Canada  0.7
29 Aug 2021 19:45 Dunville Canada  0.7
29 Aug 2021 19:45 Fox Harbour Canada  0.7
30 Aug 2021 06:45 L' Anse-au-Loup Canada  0.7
30 Aug 2021 06:45 Green Island Cove Canada  0.6
30 Aug 2021 04:45 Merasheen Canada  0.6
30 Aug 2021 04:45 Red Island Canada  0.6
01 Sep 2021 18:00 Bellevue Canada  0.6
01 Sep 2021 18:00 Chapel Arm Canada  0.6
01 Sep 2021 18:00 Dildo Canada  0.6
01 Sep 2021 18:00 New Harbour Canada  0.6
01 Sep 2021 18:00 Greens Harbour Canada  0.6
01 Sep 2021 18:00 Cavendish Canada  0.6
29 Aug 2021 22:00 Pools Cove Canada  0.6
29 Aug 2021 22:00 Belleoram Canada  0.6
29 Aug 2021 22:00 Rencontre East Canada  0.6
01 Sep 2021 18:15 Heart's Delight-Islington Canada  0.6
01 Sep 2021 18:15 Heart's Content Canada  0.6
29 Aug 2021 22:00 Barrasway de Plate Canada  0.6
01 Sep 2021 18:15 Little Heart's Ease Canada  0.6
01 Sep 2021 18:15 Saint Jones Within Canada  0.6
01 Sep 2021 18:15 Southport Canada  0.6
30 Aug 2021 06:45 West St Modeste Canada  0.6
30 Aug 2021 06:45 Pinware Canada  0.6
01 Sep 2021 18:15 New Perlican Canada  0.6
01 Sep 2021 18:15 Winterton Canada  0.6
30 Aug 2021 06:00 English Harbour West Canada  0.6
01 Sep 2021 18:45 Hants Harbour Canada  0.6
01 Sep 2021 18:45 Brownsdale Canada  0.6
01 Sep 2021 18:45 Old Perlican Canada  0.6
01 Sep 2021 18:45 Lower Island Cove Canada  0.6
01 Sep 2021 18:45 Caplin Cove Canada  0.6
30 Aug 2021 05:45 Cooks Harbour Canada  0.5
30 Aug 2021 05:45 Raleigh Canada  0.5
30 Aug 2021 06:00 Garnish Canada  0.5
30 Aug 2021 06:00 Marystown Canada  0.5
02 Sep 2021 16:45 Eddies Cove Canada  0.5
30 Aug 2021 19:45 Ship Cove Canada  0.5
30 Aug 2021 06:00 Grand Beach Canada  0.5
01 Sep 2021 18:15 Hickman's Harbour Canada  0.5
01 Sep 2021 18:15 Deer Harbour Canada  0.5
01 Sep 2021 18:15 Victoria Canada  0.5
01 Sep 2021 14:15 Grady Harbour Canada  0.5
29 Aug 2021 18:15 Saint Shotts Canada  0.5
29 Aug 2021 18:15 Trepassey Canada  0.5
01 Sep 2021 14:00 Packs Harbour Canada  0.5
29 Aug 2021 21:45 Grand Bank Canada  0.5
29 Aug 2021 18:15 Portugal Cove South Canada  0.5
29 Aug 2021 22:00 Fortune Canada  0.5
30 Aug 2021 19:45 North Boat Harbour Canada  0.5
30 Aug 2021 06:30 Saint Pierre St. Pierre and Miquelon  0.5
30 Aug 2021 08:45 Burgoynes Cove Canada  0.5
30 Aug 2021 08:45 Ivanhoe Canada  0.5
29 Aug 2021 18:30 Mosquito Canada  0.5
29 Aug 2021 18:30 Admirals Beach Canada  0.5
29 Aug 2021 18:30 Gaskiers Canada  0.5
29 Aug 2021 18:30 Saint Mary's Canada  0.5
29 Aug 2021 18:30 Riverhead Canada  0.5
29 Aug 2021 18:30 Saint Josephs Canada  0.5
31 Aug 2021 05:15 Little Bay Canada  0.5
31 Aug 2021 05:15 Port Anson Canada  0.5
31 Aug 2021 05:15 Roberts Arm Canada  0.5
31 Aug 2021 05:15 Little Bay Island Canada  0.5
31 Aug 2021 05:15 Lushes Bight Canada  0.5
31 Aug 2021 05:15 Pilley's Island Canada  0.5
31 Aug 2021 05:15 Beaumont Canada  0.5
31 Aug 2021 18:45 Change Islands Canada  0.5
31 Aug 2021 18:45 Frederickton Canada  0.5
31 Aug 2021 18:45 Island Harbour Canada  0.5
31 Aug 2021 18:45 Little Seldom Canada  0.5
31 Aug 2021 18:45 Fogo Canada  0.5
31 Aug 2021 18:45 Seldom Canada  0.5
31 Aug 2021 18:45 Joe Batt's Arm Canada  0.5
29 Aug 2021 18:30 Saint Vincent's Canada  0.5
01 Sep 2021 18:30 Old Bonaventure Canada  0.5
31 Aug 2021 05:15 Leading Tickles Canada  0.5
31 Aug 2021 05:15 Leading Tickles South Canada  0.5
31 Aug 2021 05:15 Point Leamington Canada  0.5
31 Aug 2021 05:15 Paradise Cove Canada  0.5
31 Aug 2021 05:15 Cottrells Cove Canada  0.5
29 Aug 2021 16:45 Holyrood Canada  0.5
29 Aug 2021 16:45 Indian Pond Canada  0.5
29 Aug 2021 16:45 Kelligrews Canada  0.5
29 Aug 2021 16:45 Foxtrap Canada  0.5
29 Aug 2021 16:45 Bell Island Canada  0.5
29 Aug 2021 16:45 Wabana Canada  0.5
29 Aug 2021 16:45 Topsail Canada  0.5
29 Aug 2021 16:45 Portugal Cove Canada  0.5
29 Aug 2021 18:30 Branch Canada  0.5
30 Aug 2021 15:15 Gander Bay Canada  0.5
30 Aug 2021 15:15 Carmanville Canada  0.5
29 Aug 2021 16:30 Bauline Canada  0.5
29 Aug 2021 21:15 Pass Island Canada  0.5
29 Aug 2021 21:15 Pushthrough Canada  0.5
29 Aug 2021 16:45 Bay Roberts Canada  0.5
29 Aug 2021 16:45 Harbour Grace Canada  0.5
29 Aug 2021 16:45 Conception Harbour Canada  0.5
29 Aug 2021 16:45 Colliers Canada  0.5
29 Aug 2021 16:45 Brigus Canada  0.5
29 Aug 2021 16:45 Upper Island Cove Canada  0.5
29 Aug 2021 16:45 Harbour Main Canada  0.5
31 Aug 2021 18:30 Ladle Cove Canada  0.5
30 Aug 2021 06:15 Red Bay Canada  0.5
29 Aug 2021 21:00 Miqeulon St. Pierre and Miquelon  0.5
29 Aug 2021 21:15 McCallum Canada  0.5
29 Aug 2021 18:30 Fermeuse Canada  0.5
29 Aug 2021 18:30 Cappahayden Canada  0.5
29 Aug 2021 18:30 Renews Canada  0.5
29 Aug 2021 16:30 Carbonear Canada  0.5
29 Aug 2021 18:30 Point Lance Canada  0.5
29 Aug 2021 16:30 Freshwater Canada  0.5
29 Aug 2021 16:30 Salmon Cove Canada  0.5
29 Aug 2021 16:30 Perrys Cove Canada  0.5
29 Aug 2021 18:00 Cape Race Canada  0.5
29 Aug 2021 21:00 Francois Canada  0.5
29 Aug 2021 21:00 Rencontre West Canada  0.5
01 Sep 2021 18:30 Trinity Canada  0.5
01 Sep 2021 18:30 Port Rexton Canada  0.5
01 Sep 2021 18:30 Southern Bay Canada  0.5
01 Sep 2021 18:30 Princeton Canada  0.5
01 Sep 2021 18:30 Grates Cove Canada  0.5
01 Sep 2021 18:30 Bay de Verde Canada  0.5
01 Sep 2021 14:30 Indian Tickle Canada  0.5
30 Aug 2021 09:00 Ship Cove Canada  0.5
02 Sep 2021 16:15 Moreton's Harbour Canada  0.5
02 Sep 2021 16:15 Summerford Canada  0.5
02 Sep 2021 16:15 Birchy Bay Canada  0.5
02 Sep 2021 16:15 Boyds Cove Canada  0.5
02 Sep 2021 04:30 Harry's Harbour Canada  0.4
29 Aug 2021 16:30 Western Bay Canada  0.4
29 Aug 2021 10:00 Musgrove Harbour Canada  0.4
29 Aug 2021 16:30 Pouch Cove Canada  0.4
29 Aug 2021 16:30 Torbay Canada  0.4
29 Aug 2021 16:30 Flat Rock Canada  0.4
29 Aug 2021 16:30 St. John's Canada  0.4
02 Sep 2021 04:30 Triton West Canada  0.4
29 Aug 2021 18:30 Ferryland Canada  0.4
29 Aug 2021 18:30 Saint Bride's Canada  0.4
29 Aug 2021 21:30 Point Crewe Canada  0.4
29 Aug 2021 21:30 Point May Canada  0.4
29 Aug 2021 17:30 Cape Broyle Canada  0.4
29 Aug 2021 17:30 Tors Cove Canada  0.4
29 Aug 2021 17:30 Mobile Canada  0.4
29 Aug 2021 17:30 Witless Bay Canada  0.4
29 Aug 2021 17:30 Bay Bulls Canada  0.4
02 Sep 2021 16:15 Herring Neck Canada  0.4
02 Sep 2021 16:15 Hornwood Canada  0.4
02 Sep 2021 16:15 Port Albert Canada  0.4
02 Sep 2021 16:15 Victoria Cove Canada  0.4
30 Aug 2021 17:30 Bonavista Canada  0.4
30 Aug 2021 17:30 Port Union Canada  0.4
30 Aug 2021 17:30 Catalina Canada  0.4
30 Aug 2021 17:30 Elliston Canada  0.4
30 Aug 2021 13:00 Big Brook Canada  0.4
29 Aug 2021 17:30 Petty Harbour Canada  0.4
30 Aug 2021 15:00 Sop's Arm Canada  0.4
30 Aug 2021 15:00 Browns Cove Canada  0.4
30 Aug 2021 15:00 Jackson's Arm Canada  0.4
30 Aug 2021 15:00 Purbeck's Cove Canada  0.4
30 Aug 2021 15:00 Westport Canada  0.4
30 Aug 2021 15:00 Bear Cove Canada  0.4
02 Sep 2021 04:45 Nipper's Harbour Canada  0.4
30 Aug 2021 09:00 Angels Cove Canada  0.4
01 Sep 2021 04:45 Main Brook Canada  0.4
30 Aug 2021 15:00 Coney Arm Canada  0.4
29 Aug 2021 08:00 Lumsden Canada  0.4
29 Aug 2021 08:00 Wesleyville Canada  0.4
29 Aug 2021 08:00 Newtown Canada  0.4
29 Aug 2021 08:00 Cape Freels Canada  0.4
29 Aug 2021 14:45 Marys Harbour Canada  0.4
29 Aug 2021 14:45 Lodge Bay Canada  0.4
29 Aug 2021 14:45 Saint Lewis Canada  0.4
29 Aug 2021 14:45 Spear Harbour Canada  0.4
29 Aug 2021 14:45 Loran Canada  0.4
29 Aug 2021 14:45 Battle Harbour Canada  0.4
02 Sep 2021 16:00 Seal Cove Canada  0.4
02 Sep 2021 16:00 Wild Cove Canada  0.4
30 Aug 2021 09:15 Saint Josephs Canada  0.4
02 Sep 2021 16:00 Round Harbour Canada  0.4
02 Sep 2021 16:00 Tilt Cove Canada  0.4
02 Sep 2021 16:00 La Scie Canada  0.4
02 Sep 2021 16:00 Shoe Cove Canada  0.4
02 Sep 2021 04:30 Burlington Canada  0.4
02 Sep 2021 04:15 Fleur de Lys Canada  0.4
02 Sep 2021 04:15 Coachman's Cove Canada  0.4
02 Sep 2021 15:30 Little Harbour Deep Canada  0.4
02 Sep 2021 15:30 Great Harbour Deep Canada  0.4
02 Sep 2021 15:45 Exploits Canada  0.4
02 Sep 2021 16:00 Baie Verte Canada  0.4
02 Sep 2021 15:30 Conche Canada  0.3
02 Sep 2021 15:30 Croque Canada  0.3
02 Sep 2021 15:30 Saint Juliens Canada  0.3
31 Aug 2021 18:00 Tilting Canada  0.3
02 Sep 2021 15:30 Williamsport Canada  0.3
02 Sep 2021 15:45 Woodstock Canada  0.3
02 Sep 2021 15:45 Pacquet Canada  0.3
01 Sep 2021 15:00 Batteau Harbour Canada  0.3
01 Sep 2021 15:00 Spotted Island Canada  0.3
01 Sep 2021 15:00 Black Tickle Canada  0.3
01 Sep 2021 15:00 Flat Islands Canada  0.3
31 Aug 2021 02:45 Carrolls Cove Canada  0.3
02 Sep 2021 16:00 Horse Islands Canada  0.3
30 Aug 2021 05:00 Baine Harbour Canada  0.3
30 Aug 2021 05:00 Parkers Cove Canada  0.3
01 Sep 2021 05:15 Canada Harbour Canada  0.3
01 Sep 2021 05:15 Roddickton Canada  0.3
01 Sep 2021 05:15 Englee Canada  0.3
31 Aug 2021 14:30 Rexons Cove Canada  0.3
31 Aug 2021 14:30 Georges Cove Canada  0.3
31 Aug 2021 14:30 Fishing Ships Harbour Canada  0.3
31 Aug 2021 14:30 Williams Harbour Canada  0.3
02 Sep 2021 15:30 Twillingate Canada  0.3
01 Sep 2021 17:45 Badger's Quay Canada  0.3
01 Sep 2021 15:00 Frenchmans Island Canada  0.3
01 Sep 2021 05:45 Saint Brendan's Canada  0.3
01 Sep 2021 05:45 Greenspond Canada  0.3
01 Sep 2021 16:15 Henley Harbour Canada  0.3
02 Sep 2021 15:30 Grey Islands Harbour Canada  0.3
31 Aug 2021 17:45 Newman's Cove Canada  0.3
01 Sep 2021 15:45 Square Island Canada  0.3
29 Aug 2021 20:45 Lamaline Canada  0.3
29 Aug 2021 22:45 Burin Canada  0.3
01 Sep 2021 03:45 Snug Harbour Canada  0.3
01 Sep 2021 05:00 Goose Cove Canada  0.3
29 Aug 2021 20:30 Rock Harbour Canada  0.3
01 Sep 2021 05:15 Saint Anthony Canada  0.3
01 Sep 2021 05:15 Great Brehat Canada  0.3
01 Sep 2021 05:15 Saint Anthony Bight Canada  0.3
01 Sep 2021 15:45 Saint Lunaire-Griquet Canada  0.3
01 Sep 2021 15:45 Quirpon Canada  0.3
01 Sep 2021 18:30 Salvage Canada  0.3
01 Sep 2021 18:30 Tickle Cove Canada  0.3
29 Aug 2021 22:30 Lawn Canada  0.3
29 Aug 2021 22:45 Saint Lawrence Canada  0.3
01 Sep 2021 15:15 Venison Island Canada  0.3
01 Sep 2021 15:15 Comfort Bight Canada  0.3
01 Sep 2021 18:30 Plate Cove Canada  0.3
01 Sep 2021 18:30 Open Hall Canada  0.3
01 Sep 2021 18:30 Keels Canada  0.3
01 Sep 2021 20:30 Little Burnt Bay Canada  0.2
01 Sep 2021 20:30 Lewisporte Canada  0.2
01 Sep 2021 20:30 Campbellton Canada  0.2
01 Sep 2021 20:30 Loon Bay Canada  0.2