Overall Green alert Tropical Cyclone for JULIAN-21
Off-shore
Impact Single TC
HWRF
Impact 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 HWRF
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 101 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
HWRF Current 101 km/h 1.4 m 360 mm 0.5
HWRF Overall 101 km/h 1.4 m 360 mm 0.5

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

Wind

101 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 29 Aug 2021 12:00 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 76 - - - - - - -
GREEN 2 29 Aug 2021 06:00 101 - - - - - - -
GREEN 3 29 Aug 2021 12:00 101 - - - - - - -




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

No exposed population (greater than 50mm) based on the bulletin of 29 Aug 2021 12:00 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 00:00 178 - - - - - - -
Blue 2 29 Aug 2021 06:00 301 - - - - - - -
Blue 3 29 Aug 2021 12:00 360 - - - - - - -




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 29 Aug 2021 12:00 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 17:30 Swift Current Canada  1.4
30 Aug 2021 17:30 Tacks Beach Canada  1.2
30 Aug 2021 17:30 Harbour Buffet Canada  1.0
29 Aug 2021 20:30 Seal Cove Canada  0.8
29 Aug 2021 20:30 Little Bay Canada  0.8
29 Aug 2021 20:30 Hermitage-Sandy Hill Canada  0.8
29 Aug 2021 20:30 Hermitage Canada  0.8
29 Aug 2021 20:30 Harbour Breton Canada  0.8
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 17:30 Clattice Harbour Canada  0.7
30 Aug 2021 17:30 Monkstown 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
30 Aug 2021 06:45 Flower Cove Canada  0.7
30 Aug 2021 17:30 Merasheen Canada  0.7
01 Sep 2021 05:45 Bellevue Canada  0.7
01 Sep 2021 05:45 Chapel Arm Canada  0.7
01 Sep 2021 05:45 Dildo Canada  0.7
01 Sep 2021 05:45 New Harbour Canada  0.7
01 Sep 2021 05:45 Greens Harbour Canada  0.7
01 Sep 2021 05:45 Cavendish Canada  0.7
30 Aug 2021 17:30 Red Island Canada  0.7
30 Aug 2021 13:30 Forteau Canada  0.6
30 Aug 2021 13:30 L' Anse-au-Loup Canada  0.6
31 Aug 2021 19:00 Pools Cove Canada  0.6
31 Aug 2021 19:00 Belleoram Canada  0.6
31 Aug 2021 19:00 Rencontre East Canada  0.6
30 Aug 2021 13:30 Green Island Cove Canada  0.6
01 Sep 2021 06:00 Heart's Delight-Islington Canada  0.6
30 Aug 2021 05:45 Barrasway de Plate Canada  0.6
01 Sep 2021 06:00 Heart's Content Canada  0.6
30 Aug 2021 06:00 Fortune Canada  0.6
30 Aug 2021 06:00 Grand Bank Canada  0.6
30 Aug 2021 06:00 Grand Beach Canada  0.6
30 Aug 2021 06:00 English Harbour West Canada  0.6
30 Aug 2021 06:00 Garnish Canada  0.6
30 Aug 2021 06:00 Marystown Canada  0.5
30 Aug 2021 13:30 West St Modeste Canada  0.5
30 Aug 2021 13:30 Pinware Canada  0.5
30 Aug 2021 08:45 Little Heart's Ease Canada  0.5
30 Aug 2021 08:45 Saint Jones Within Canada  0.5
30 Aug 2021 08:45 Southport Canada  0.5
30 Aug 2021 08:45 New Perlican Canada  0.5
30 Aug 2021 08:45 Winterton Canada  0.5
29 Aug 2021 21:30 Saint Pierre St. Pierre and Miquelon  0.5
29 Aug 2021 18:15 Saint Shotts Canada  0.5
29 Aug 2021 18:15 Trepassey Canada  0.5
30 Aug 2021 08:45 Hants Harbour Canada  0.5
30 Aug 2021 08:45 Victoria Canada  0.5
30 Aug 2021 08:45 Hickman's Harbour Canada  0.5
30 Aug 2021 08:45 Deer Harbour Canada  0.5
30 Aug 2021 15:15 Gander Bay Canada  0.5
30 Aug 2021 15:15 Frederickton Canada  0.5
30 Aug 2021 15:15 Island Harbour Canada  0.5
30 Aug 2021 15:15 Carmanville Canada  0.5
30 Aug 2021 15:15 Little Seldom Canada  0.5
30 Aug 2021 15:15 Seldom Canada  0.5
30 Aug 2021 13:45 Eddies Cove Canada  0.5
29 Aug 2021 18:15 Portugal Cove South 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 18:45 Ladle Cove Canada  0.5
29 Aug 2021 16:30 Holyrood Canada  0.5
29 Aug 2021 16:30 Indian Pond Canada  0.5
29 Aug 2021 16:30 Kelligrews Canada  0.5
29 Aug 2021 16:30 Foxtrap Canada  0.5
29 Aug 2021 16:30 Bell Island Canada  0.5
29 Aug 2021 16:30 Wabana Canada  0.5
29 Aug 2021 16:30 Topsail Canada  0.5
29 Aug 2021 16:30 Portugal Cove Canada  0.5
30 Aug 2021 08:45 Burgoynes Cove Canada  0.5
30 Aug 2021 08:45 Ivanhoe Canada  0.5
31 Aug 2021 14:15 Cooks Harbour Canada  0.5
31 Aug 2021 14:15 Raleigh Canada  0.5
31 Aug 2021 14:15 Ship Cove 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 18:15 Saint Vincent's Canada  0.5
29 Aug 2021 16:30 Bay Roberts Canada  0.5
29 Aug 2021 16:30 Harbour Grace Canada  0.5
29 Aug 2021 16:30 Conception Harbour Canada  0.5
29 Aug 2021 16:30 Colliers Canada  0.5
29 Aug 2021 16:30 Brigus Canada  0.5
29 Aug 2021 16:30 Upper Island Cove Canada  0.5
29 Aug 2021 16:30 Harbour Main Canada  0.5
29 Aug 2021 16:30 Bauline Canada  0.5
31 Aug 2021 18:45 Change Islands Canada  0.5
31 Aug 2021 18:45 Fogo Canada  0.5
31 Aug 2021 18:45 Joe Batt's Arm Canada  0.5
29 Aug 2021 16:30 Carbonear Canada  0.5
30 Aug 2021 09:00 Brownsdale Canada  0.5
29 Aug 2021 18:00 Cape Race 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 18:15 Branch Canada  0.5
29 Aug 2021 16:30 Western Bay Canada  0.5
30 Aug 2021 09:00 Ship Cove Canada  0.5
30 Aug 2021 08:45 Old Bonaventure Canada  0.5
29 Aug 2021 21:15 Pass Island Canada  0.5
29 Aug 2021 21:15 Pushthrough Canada  0.5
01 Sep 2021 09:30 Grady Harbour Canada  0.5
29 Aug 2021 21:15 McCallum Canada  0.5
29 Aug 2021 21:00 Miqeulon St. Pierre and Miquelon  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 18:30 Point Lance Canada  0.5
29 Aug 2021 21:00 Rencontre West Canada  0.5
30 Aug 2021 17:30 Bonavista Canada  0.5
30 Aug 2021 17:30 Port Union Canada  0.5
30 Aug 2021 17:30 Catalina Canada  0.5
30 Aug 2021 17:30 Elliston Canada  0.5
30 Aug 2021 13:00 Red Bay Canada  0.5
29 Aug 2021 21:00 Francois Canada  0.5
29 Aug 2021 16:30 Pouch Cove Canada  0.4
30 Aug 2021 09:00 Old Perlican Canada  0.4
30 Aug 2021 09:00 Lower Island Cove Canada  0.4
30 Aug 2021 09:00 Caplin Cove Canada  0.4
29 Aug 2021 13:45 Moreton's Harbour Canada  0.4
29 Aug 2021 13:45 Summerford Canada  0.4
29 Aug 2021 13:45 Birchy Bay Canada  0.4
29 Aug 2021 13:45 Boyds Cove Canada  0.4
30 Aug 2021 15:15 Little Bay Canada  0.4
30 Aug 2021 15:15 Port Anson Canada  0.4
30 Aug 2021 15:15 Roberts Arm Canada  0.4
30 Aug 2021 15:15 Little Bay Island Canada  0.4
30 Aug 2021 15:15 Lushes Bight Canada  0.4
30 Aug 2021 15:15 Pilley's Island Canada  0.4
30 Aug 2021 15:15 Beaumont Canada  0.4
29 Aug 2021 22:30 North Boat Harbour Canada  0.4
01 Sep 2021 06:00 Sop's Arm Canada  0.4
01 Sep 2021 06:00 Browns Cove Canada  0.4
01 Sep 2021 06:00 Jackson's Arm Canada  0.4
01 Sep 2021 06:00 Purbeck's Cove Canada  0.4
01 Sep 2021 06:00 Westport Canada  0.4
01 Sep 2021 06:00 Bear 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
29 Aug 2021 18:30 Ferryland Canada  0.4
01 Sep 2021 05:45 Coney Arm 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
29 Aug 2021 17:30 Petty Harbour Canada  0.4
31 Aug 2021 18:15 Musgrove Harbour Canada  0.4
29 Aug 2021 17:30 Cape Broyle Canada  0.4
30 Aug 2021 09:00 Southern Bay Canada  0.4
30 Aug 2021 09:00 Princeton Canada  0.4
30 Aug 2021 09:00 Trinity Canada  0.4
30 Aug 2021 09:00 Port Rexton Canada  0.4
01 Sep 2021 03:30 Big Brook Canada  0.4
29 Aug 2021 18:30 Saint Bride's Canada  0.4
01 Sep 2021 05:45 Seal Cove 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 05:45 Wild Cove Canada  0.4
31 Aug 2021 15:15 Packs Harbour Canada  0.4
30 Aug 2021 09:00 Angels Cove Canada  0.4
29 Aug 2021 21:15 Point Crewe Canada  0.4
29 Aug 2021 21:15 Point May Canada  0.4
01 Sep 2021 05:45 Little Harbour Deep 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
31 Aug 2021 05:15 Harry's Harbour Canada  0.4
01 Sep 2021 05:45 Baie Verte Canada  0.4
30 Aug 2021 09:00 Grates Cove Canada  0.4
30 Aug 2021 09:00 Bay de Verde Canada  0.4
01 Sep 2021 05:45 Fleur de Lys Canada  0.4
01 Sep 2021 05:45 Coachman's Cove Canada  0.4
01 Sep 2021 05:45 Great Harbour Deep Canada  0.4
01 Sep 2021 05:15 Woodstock Canada  0.4
01 Sep 2021 05:15 Pacquet Canada  0.4
01 Sep 2021 05:15 Horse Islands Canada  0.4
01 Sep 2021 04:00 Rexons Cove Canada  0.4
01 Sep 2021 04:00 Georges Cove Canada  0.4
01 Sep 2021 04:00 Snug Harbour Canada  0.4
01 Sep 2021 04:00 Square Island Canada  0.4
01 Sep 2021 04:00 Fishing Ships Harbour Canada  0.4
01 Sep 2021 05:30 Round Harbour Canada  0.4
01 Sep 2021 05:30 Tilt Cove Canada  0.4
01 Sep 2021 05:30 La Scie Canada  0.4
01 Sep 2021 05:30 Shoe Cove Canada  0.4
30 Aug 2021 04:45 Saint Josephs Canada  0.4
01 Sep 2021 05:30 Main Brook Canada  0.4
01 Sep 2021 04:30 Indian Tickle Canada  0.4
01 Sep 2021 05:15 Canada Harbour Canada  0.4
01 Sep 2021 05:15 Roddickton Canada  0.4
01 Sep 2021 05:15 Englee Canada  0.4
30 Aug 2021 05:00 Baine Harbour Canada  0.4
30 Aug 2021 05:00 Parkers Cove Canada  0.4
31 Aug 2021 02:30 Carrolls Cove Canada  0.4
31 Aug 2021 05:15 Triton West Canada  0.4
01 Sep 2021 05:15 Conche Canada  0.4
01 Sep 2021 05:30 Williamsport Canada  0.4
01 Sep 2021 05:15 Grey Islands Harbour Canada  0.4
01 Sep 2021 05:15 Goose Cove Canada  0.4
01 Sep 2021 05:15 Croque Canada  0.3
01 Sep 2021 05:15 Saint Juliens Canada  0.3
31 Aug 2021 18:00 Tilting 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 06:00 Exploits Canada  0.3
31 Aug 2021 14:30 Williams Harbour Canada  0.3
01 Sep 2021 08:30 Rock Harbour Canada  0.3
01 Sep 2021 05:45 Twillingate Canada  0.3
31 Aug 2021 18:00 Newman's Cove Canada  0.3
29 Aug 2021 22:45 Burin Canada  0.3
01 Sep 2021 05:45 Saint Brendan's 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 03:45 Henley Harbour Canada  0.3
29 Aug 2021 16:15 Lumsden Canada  0.3
29 Aug 2021 16:15 Wesleyville Canada  0.3
29 Aug 2021 16:15 Newtown Canada  0.3
29 Aug 2021 16:15 Cape Freels Canada  0.3
29 Aug 2021 20:45 Lamaline Canada  0.3
01 Sep 2021 04:45 Nipper's Harbour Canada  0.3
01 Sep 2021 05:15 Burlington Canada  0.3
01 Sep 2021 04:00 Saint Lunaire-Griquet Canada  0.3
01 Sep 2021 04:00 Quirpon Canada  0.3
01 Sep 2021 05:45 Keels Canada  0.3
01 Sep 2021 05:45 Plate Cove Canada  0.3
01 Sep 2021 05:45 Tickle Cove Canada  0.3
01 Sep 2021 05:45 Open Hall Canada  0.3
01 Sep 2021 08:15 Lawn Canada  0.3
29 Aug 2021 22:45 Saint Lawrence Canada  0.3
29 Aug 2021 16:30 Salvage Canada  0.3
01 Sep 2021 04:45 Batteau Harbour Canada  0.3
01 Sep 2021 04:45 Spotted Island Canada  0.3
01 Sep 2021 04:45 Black Tickle Canada  0.3
01 Sep 2021 04:45 Flat Islands Canada  0.3
01 Sep 2021 04:45 Frenchmans Island Canada  0.3
01 Sep 2021 04:15 Venison Island Canada  0.2
01 Sep 2021 03:45 Comfort Bight Canada  0.2
01 Sep 2021 07:45 Little Burnt Bay Canada  0.2
01 Sep 2021 07:45 Lewisporte Canada  0.2
01 Sep 2021 07:45 Campbellton Canada  0.2
01 Sep 2021 07:45 Loon Bay Canada  0.2