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
Exposed population No people in Category 1 or higher
Maximum wind speed 86 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 86 km/h 1.4 m 107 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

No people by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 30 Aug 2021 00:00 UTC

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 90 - - - - - - -




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 00:00 UTC

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 00:00 179 - - - - - - -




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 00:00 UTC
    
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  1.4
30 Aug 2021 17:15 Sound Island Canada  1.4
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
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 13:00 Seal Cove Canada  0.8
30 Aug 2021 13:00 Little Bay Canada  0.8
30 Aug 2021 13:00 Hermitage-Sandy Hill Canada  0.8
30 Aug 2021 13:00 Hermitage Canada  0.8
30 Aug 2021 13:00 Harbour Breton 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
30 Aug 2021 08:45 Little Barasway Canada  0.7
30 Aug 2021 08:45 Placentia Canada  0.7
30 Aug 2021 08:45 Argentia Canada  0.7
30 Aug 2021 08:45 Dunville Canada  0.7
30 Aug 2021 08:45 Fox Harbour Canada  0.7
01 Sep 2021 18:00 Bellevue Canada  0.7
01 Sep 2021 18:00 Chapel Arm Canada  0.7
01 Sep 2021 18:00 Dildo Canada  0.7
01 Sep 2021 18:00 New Harbour Canada  0.7
01 Sep 2021 18:00 Greens Harbour Canada  0.7
01 Sep 2021 18:00 Cavendish 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
01 Sep 2021 18:15 Heart's Delight-Islington Canada  0.6
30 Aug 2021 04:45 Red Island Canada  0.6
01 Sep 2021 18:15 Heart's Content Canada  0.6
01 Sep 2021 18:15 Little Heart's Ease 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 Pools Cove Canada  0.6
30 Aug 2021 05:45 Belleoram Canada  0.6
30 Aug 2021 05:45 Rencontre East Canada  0.6
01 Sep 2021 18:15 Saint Jones Within Canada  0.6
01 Sep 2021 18:15 Southport 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 05:45 Barrasway de Plate 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 18:30 Victoria Canada  0.6
01 Sep 2021 18:30 Hickman's Harbour Canada  0.6
01 Sep 2021 18:30 Deer Harbour Canada  0.6
30 Aug 2021 06:00 English Harbour West Canada  0.6
01 Sep 2021 18:30 Burgoynes Cove Canada  0.5
01 Sep 2021 18:30 Ivanhoe Canada  0.5
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
30 Aug 2021 06:00 Grand Beach Canada  0.5
30 Aug 2021 19:45 Ship Cove Canada  0.5
01 Sep 2021 18:30 Old Bonaventure Canada  0.5
01 Sep 2021 14:15 Grady Harbour Canada  0.5
01 Sep 2021 14:00 Packs Harbour Canada  0.5
30 Aug 2021 13:45 Eddies Cove Canada  0.5
30 Aug 2021 06:30 Grand Bank Canada  0.5
30 Aug 2021 06:00 Fortune Canada  0.5
30 Aug 2021 06:30 Saint Pierre St. Pierre and Miquelon  0.5
30 Aug 2021 19:45 North Boat Harbour 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
01 Sep 2021 18:45 Southern Bay Canada  0.5
01 Sep 2021 18:45 Princeton Canada  0.5
01 Sep 2021 18:45 Trinity Canada  0.5
01 Sep 2021 18:45 Port Rexton Canada  0.5
31 Aug 2021 18:30 Carmanville Canada  0.5
31 Aug 2021 18:30 Ladle Cove Canada  0.5
01 Sep 2021 14:00 Indian Tickle Canada  0.5
30 Aug 2021 15:15 Gander Bay Canada  0.5
30 Aug 2021 06:15 Red Bay Canada  0.5
01 Sep 2021 18:45 Grates Cove Canada  0.5
01 Sep 2021 18:45 Bay de Verde 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
31 Aug 2021 11:00 Francois Canada  0.5
30 Aug 2021 09:00 Ship Cove Canada  0.5
01 Sep 2021 19:00 Holyrood Canada  0.4
01 Sep 2021 19:00 Indian Pond Canada  0.4
01 Sep 2021 19:00 Kelligrews Canada  0.4
01 Sep 2021 19:00 Foxtrap Canada  0.4
01 Sep 2021 19:00 Bell Island Canada  0.4
01 Sep 2021 19:00 Wabana Canada  0.4
01 Sep 2021 19:00 Topsail Canada  0.4
01 Sep 2021 19:00 Portugal Cove Canada  0.4
01 Sep 2021 19:00 Bauline Canada  0.4
01 Sep 2021 08:00 Pass Island Canada  0.4
01 Sep 2021 08:00 Pushthrough Canada  0.4
31 Aug 2021 11:00 Rencontre West Canada  0.4
31 Aug 2021 10:45 Miqeulon St. Pierre and Miquelon  0.4
31 Aug 2021 11:00 McCallum Canada  0.4
01 Sep 2021 19:00 Bay Roberts Canada  0.4
01 Sep 2021 19:00 Harbour Grace Canada  0.4
01 Sep 2021 19:00 Conception Harbour Canada  0.4
01 Sep 2021 19:00 Colliers Canada  0.4
01 Sep 2021 19:00 Brigus Canada  0.4
01 Sep 2021 19:00 Upper Island Cove Canada  0.4
01 Sep 2021 19:00 Harbour Main Canada  0.4
01 Sep 2021 18:30 Port Union Canada  0.4
01 Sep 2021 18:30 Catalina Canada  0.4
31 Aug 2021 05:30 Little Bay Canada  0.4
31 Aug 2021 05:30 Port Anson Canada  0.4
31 Aug 2021 05:30 Roberts Arm Canada  0.4
31 Aug 2021 05:30 Little Bay Island Canada  0.4
31 Aug 2021 05:30 Lushes Bight Canada  0.4
31 Aug 2021 05:30 Pilley's Island Canada  0.4
31 Aug 2021 05:30 Beaumont Canada  0.4
01 Sep 2021 19:00 Carbonear Canada  0.4
30 Aug 2021 17:30 Bonavista Canada  0.4
30 Aug 2021 17:30 Elliston Canada  0.4
30 Aug 2021 15:00 Moreton's Harbour Canada  0.4
30 Aug 2021 15:00 Summerford Canada  0.4
30 Aug 2021 15:00 Birchy Bay Canada  0.4
30 Aug 2021 15:00 Boyds Cove Canada  0.4
01 Sep 2021 08:30 Point Crewe Canada  0.4
01 Sep 2021 08:30 Point May Canada  0.4
01 Sep 2021 19:00 Freshwater Canada  0.4
01 Sep 2021 19:00 Salmon Cove Canada  0.4
01 Sep 2021 19:00 Perrys Cove Canada  0.4
30 Aug 2021 13:00 Big Brook Canada  0.4
01 Sep 2021 18:45 Western Bay Canada  0.4
01 Sep 2021 20:00 Trepassey Canada  0.4
01 Sep 2021 20:00 Portugal Cove South Canada  0.4
01 Sep 2021 17:15 Musgrove Harbour Canada  0.4
01 Sep 2021 18:45 Pouch Cove Canada  0.4
01 Sep 2021 15:00 Rexons Cove Canada  0.4
01 Sep 2021 15:00 Georges Cove Canada  0.4
01 Sep 2021 15:00 Snug Harbour Canada  0.4
01 Sep 2021 15:00 Square Island Canada  0.4
01 Sep 2021 15:00 Fishing Ships Harbour Canada  0.4
01 Sep 2021 20:00 Saint Shotts Canada  0.4
30 Aug 2021 15:00 Herring Neck Canada  0.4
30 Aug 2021 15:00 Hornwood Canada  0.4
30 Aug 2021 15:00 Port Albert Canada  0.4
30 Aug 2021 15:00 Victoria Cove Canada  0.4
01 Sep 2021 18:45 Torbay Canada  0.4
01 Sep 2021 18:45 Flat Rock Canada  0.4
01 Sep 2021 18:45 St. John's Canada  0.4
30 Aug 2021 09:00 Angels Cove Canada  0.4
01 Sep 2021 05:15 Main Brook 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
01 Sep 2021 19:30 Fermeuse Canada  0.4
01 Sep 2021 19:30 Cappahayden Canada  0.4
01 Sep 2021 19:30 Renews Canada  0.4
30 Aug 2021 15:15 Coney Arm Canada  0.4
30 Aug 2021 15:30 Mosquito Canada  0.4
30 Aug 2021 15:30 Saint Vincent's Canada  0.4
30 Aug 2021 15:30 Admirals Beach Canada  0.4
30 Aug 2021 15:30 Gaskiers Canada  0.4
30 Aug 2021 15:30 Saint Mary's Canada  0.4
30 Aug 2021 15:30 Riverhead Canada  0.4
31 Aug 2021 05:30 Harry's Harbour Canada  0.4
30 Aug 2021 09:00 Saint Bride's Canada  0.4
30 Aug 2021 09:15 Saint Josephs Canada  0.4
30 Aug 2021 15:30 Saint Josephs Canada  0.4
01 Sep 2021 15:00 Batteau Harbour Canada  0.4
01 Sep 2021 15:00 Spotted Island Canada  0.4
01 Sep 2021 15:00 Black Tickle Canada  0.4
01 Sep 2021 15:00 Flat Islands Canada  0.4
30 Aug 2021 15:30 Branch Canada  0.4
31 Aug 2021 18:00 Tilting Canada  0.4
01 Sep 2021 05:15 Cape Broyle Canada  0.4
01 Sep 2021 05:15 Tors Cove Canada  0.4
01 Sep 2021 05:15 Mobile Canada  0.4
01 Sep 2021 05:15 Witless Bay Canada  0.4
01 Sep 2021 05:15 Bay Bulls Canada  0.4
01 Sep 2021 15:00 Frenchmans Island Canada  0.4
31 Aug 2021 02:45 Marys Harbour Canada  0.4
31 Aug 2021 02:45 Lodge Bay Canada  0.4
31 Aug 2021 02:45 Carrolls Cove Canada  0.4
31 Aug 2021 02:45 Saint Lewis Canada  0.4
31 Aug 2021 02:45 Loran Canada  0.4
31 Aug 2021 02:45 Battle Harbour Canada  0.4
01 Sep 2021 17:45 Parkers Cove Canada  0.4
31 Aug 2021 05:30 Triton West Canada  0.4
01 Sep 2021 19:45 Cape Race Canada  0.4
01 Sep 2021 15:45 Spear Harbour Canada  0.4
01 Sep 2021 19:30 Ferryland Canada  0.4
01 Sep 2021 17:30 Baine Harbour Canada  0.4
01 Sep 2021 05:30 Petty Harbour Canada  0.4
01 Sep 2021 15:30 Williams Harbour Canada  0.4
01 Sep 2021 05:45 Seal Cove Canada  0.4
01 Sep 2021 17:30 Rock Harbour Canada  0.3
01 Sep 2021 05:45 Little Harbour Deep Canada  0.3
01 Sep 2021 16:15 Henley Harbour Canada  0.3
01 Sep 2021 05:45 Wild Cove Canada  0.3
30 Aug 2021 15:30 Point Lance Canada  0.3
01 Sep 2021 05:45 Baie Verte Canada  0.3
01 Sep 2021 05:15 Fleur de Lys Canada  0.3
01 Sep 2021 05:15 Coachman's Cove Canada  0.3
01 Sep 2021 05:15 Woodstock Canada  0.3
01 Sep 2021 05:15 Pacquet Canada  0.3
01 Sep 2021 17:45 Lumsden Canada  0.3
01 Sep 2021 17:45 Wesleyville Canada  0.3
01 Sep 2021 17:45 Newtown Canada  0.3
01 Sep 2021 17:45 Cape Freels 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
01 Sep 2021 05:15 Conche Canada  0.3
01 Sep 2021 05:45 Great Harbour Deep Canada  0.3
01 Sep 2021 16:00 Saint Lunaire-Griquet Canada  0.3
01 Sep 2021 16:00 Quirpon Canada  0.3
31 Aug 2021 17:45 Newman's Cove Canada  0.3
01 Sep 2021 05:15 Horse Islands Canada  0.3
31 Aug 2021 17:45 Saint Brendan's Canada  0.3
01 Sep 2021 05:30 Williamsport Canada  0.3
01 Sep 2021 08:15 Lamaline Canada  0.3
01 Sep 2021 05:15 Round Harbour Canada  0.3
01 Sep 2021 05:15 Tilt Cove Canada  0.3
01 Sep 2021 05:15 La Scie Canada  0.3
01 Sep 2021 05:15 Shoe Cove Canada  0.3
01 Sep 2021 05:15 Goose Cove Canada  0.3
01 Sep 2021 05:15 Grey Islands Harbour Canada  0.3
01 Sep 2021 05:45 Badger's Quay Canada  0.3
01 Sep 2021 05:45 Greenspond Canada  0.3
01 Sep 2021 15:15 Venison Island Canada  0.3
01 Sep 2021 05:30 Croque Canada  0.3
01 Sep 2021 05:30 Saint Juliens Canada  0.3
01 Sep 2021 15:00 Comfort Bight Canada  0.3
31 Aug 2021 05:30 Nipper's Harbour Canada  0.3
01 Sep 2021 08:15 Lawn 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 08:30 Burin Canada  0.3
01 Sep 2021 18:30 Exploits Canada  0.3
01 Sep 2021 17:30 Plate Cove Canada  0.3
01 Sep 2021 17:30 Tickle Cove Canada  0.3
01 Sep 2021 17:30 Open Hall Canada  0.3
01 Sep 2021 17:30 Keels Canada  0.3
31 Aug 2021 06:00 Burlington Canada  0.3
01 Sep 2021 05:45 Twillingate Canada  0.3
31 Aug 2021 17:45 Salvage Canada  0.3
01 Sep 2021 08:15 Saint Lawrence Canada  0.3
01 Sep 2021 20:00 Little Burnt Bay Canada  0.2
01 Sep 2021 20:15 Lewisporte Canada  0.2
01 Sep 2021 20:15 Campbellton Canada  0.2
01 Sep 2021 20:15 Loon Bay Canada  0.2