Overall Orange alert Tropical Cyclone for OLAF-21
in Mexico
10 Sep 2021 00 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

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

Meteorological source HWRF
Exposed countries Mexico
Exposed population Few people in Category 1 or higher
Maximum wind speed 140 km/h
Maximum storm surge 0.6 m (10 Sep 01:30 UTC)
Vulnerability Medium (Mexico)

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 140 km/h 0.6 m 328 mm 0.5
HWRF Overall 169 km/h 0.6 m 647 mm 0.5

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

TOP

Wind

169 km/h

Up to Few people in Category 1 strength or higher (see SSHS)



Wind exposed population - AoIs

Estimations based on the bulletin of 10 Sep 2021 00:00 UTC
CategoryCountryPopulation 
CAT. 1Mexico333 
Tropical StormMexico730,750 

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 07 Sep 2021 18:00 61 - - - - - - -
GREEN 2 08 Sep 2021 00:00 61 - - - - - - -
GREEN 3 08 Sep 2021 06:00 76 - - - - - - -
GREEN 4 08 Sep 2021 12:00 79 - - - - - - -
GREEN 5 08 Sep 2021 18:00 83 - - - - - - -
GREEN 6 09 Sep 2021 00:00 104 - - - - - - -
GREEN 7 09 Sep 2021 06:00 133 -
- - - - - Mexico
GREEN 8 09 Sep 2021 12:00 108 -
- - - - - Mexico
GREEN 9 09 Sep 2021 18:00 169 Few people
- - - - Mexico
GREEN 10 10 Sep 2021 00:00 140 Few people
- - - - Mexico
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 10 Sep 2021 00:00 UTC
LevelCountryPopulation 
500-750 mmMexico00
+
250-500 mmMexico10,773 
100-250 mmMexico400,744 
50-100 mmMexico308,286 

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 07 Sep 2021 18:00 250 - - - - - - -
Blue 2 08 Sep 2021 00:00 191 - - - - - - -
Blue 3 08 Sep 2021 06:00 173 - - - - - - -
Blue 4 08 Sep 2021 12:00 290 - - - - - - -
Blue 5 08 Sep 2021 18:00 168 -
- - - - - Mexico
Blue 6 09 Sep 2021 00:00 181 - - - - - - -
Blue 7 09 Sep 2021 06:00 262 - - - - - - -
Blue 8 09 Sep 2021 12:00 157 -
- - - - - Mexico
Blue 9 09 Sep 2021 18:00 209 -
- - - - - Mexico
Blue 10 10 Sep 2021 00:00 580 410 thousand
- - - Mexico




Impact estimation for the next 72h
TOP

StormSurge

The calculations have been performed using NAMIDANCE computer code, from Middle East Technical University.
reference: Zaytsev, Andrey; Kurkin, Andrey; Pelinovsky, Efim; Yalciner, Ahmet C. - NUMERICAL TSUNAMI MODEL NAMI-DANCE. - Science of Tsunami Hazards . Nov2019, Vol. 38 Issue 4, p151-168. 18p.
Doaj

0.6 m

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 10 Sep 2021 00:00 UTC