Status:Ongoing analysis Material from: Linus
Discussed in the following Daily reports: |
On 21 December extreme rainfall affected northern Sri Lanka, affecting more than 100000 people.
https://reliefweb.int/disaster/fl-2018-000425-lka
http://floodlist.com/asia/sri-lanka-floods-december-2018
Rainfall observations (from http://floodlist.com/asia/sri-lanka-floods-december-2018, Figures from Sri Lanka’s Department of Meteorology):
365.1 mm in 24 hours Maankulam, Mullaitivu district - December 21 to December 22, 2018
302.1 mm in 24 hours Oddusddan - December 21 to December 22, 2018
237.3 mm in 24 hours Kilinochchi - December 21 to December 22, 2018
220.2 mm in 24 hours Elephant Pass, Pachchilapalli, Sri Lanka - December 21 to December 22, 2018
201.2 mm in 24 hours Anuradhapura - December 21 to December 22, 2018
The plots below show analyses of MSLP and 6-hour precipitation forecasts ranging 19 December 00UTC to 22 December 00UTC. An area of precipitation propagated westwards over Indian Ocean during these days.
The plots below show 24-hour accumulated precipitation 21 December 00UTC to 22 October 00UTC in forecasts with different initial times. The MSLP valid at 21 December 12UTC is included as well. Moderate rainfall (20-30 mm/24h) with possibilities of extreme rainfall was indicated in HRES forecasts from 17 December 12UTC and onwards.
The plots below show the EFI and SOT for 1-day precipitation valid 21 December. High SOT values start to appears in the forecast from 18 December north of Sri Lanka, indicating that some members have extreme rainfall.