extreme precipitation in february
TRANSCRIPT
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Extreme Precipitation in February
February is a month of winter (December- February) season. The winter season receives
precipitation mainly by western disturbance. A western disturbance is an extratropical
storm originating in the Mediterranean region that brings sudden rain. In this report, daily
extreme precipitation information of major 20 stations shown in map 1 is presented.
Among these stations, the highest amount of daily extreme precipitation of 108.0mm was
recorded at Lumle, Kaski on 14 February 2007. Trend of daily extreme precipitation and
its significance are shown in Table 1, and ever recorded daily extreme precipitation is
shown in Table 2.
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Table1: Trend and Significance of extreme daily precipitation in February
Stations Longitude
(Deg)
Latitude
(Deg)
Trend of extreme daily precipitation in
February
Trend (mm/year)
Significance at 95 %
confidence level (p-
value)
Dadeldhura 80.588 29.301 0.1 / increasing 0.53 / Insignificant
Dhangadhi 80.560 28.813 0.01 / increasing 0.84 / Insignificant
Dipayal 80.937 29.262 0.24 / increasing 0.29 / Insignificant
Jumla 82.180 29.275 0.08 / increasing 0.4 / Insignificant
Surkhet 81.635 28.588 0.1 / increasing 0.3 / Insignificant
Nepalgunj Airport 81.668 28.101 -0.05 / decreasing 0.77 / Insignificant
Ghorahi (Dang) 82.484 28.037 No trend 0.86 / No trend
Jomsom 83.730 28.784 0.09 / increasing 0.05 / Insignificant
Bhairahawa Airport 83.420 27.507 0.11 / increasing 0.15 / Insignificant
Pokhara Airport 83.980 28.200 -0.12 / decreasing 0.32 / Insignificant
Lumle 83.818 28.297 0 / increasing 0.96 / Insignificant
Simara Airport 84.980 27.164 -0.03 / decreasing 0.48 / Insignificant
Kathmandu Airport 85.356 27.704 0.11 / increasing 0.27 / Insignificant
Jiri 86.232 27.630 0.13 / increasing 0.07 / Insignificant
Janakpur Airport 85.924 26.711 -0.08 / decreasing 0.04 / Significant
Okhaldhunga 86.504 27.308 0 / increasing 0.89 / Insignificant
Dhankuta 87.346 26.983 0.01 / increasing 0.47 / Insignificant
Dharan Bazzar 87.298 26.792 No trend 0.19 / No trend
Biratnagar Airport 87.267 26.484 -0.01 / decreasing 0.6 / Insignificant
Taplejung 87.670 27.359 0.07 / increasing 0.16 / Insignificant
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Table2: Ever recorded annual and monthly highest daily precipitation information
Stations Longitude
(Deg) Latitude
(Deg)
Ever recorded highest daily precipitation information
Annual [value (mm) /date] February [value
(mm)/date]
Dadeldhura 80.588 29.301 226.6 / 18 August 2009 80.4 / 21 February 1984
Dhangadhi 80.560 28.813 290.9 / 19 July 2013 78.4 / 17 February 2013
Dipayal 80.937 29.262 245.7 / 6 October 2009 63.2 / 12 February 2002
Jumla 82.180 29.275 206.8 / 14 September 1975 63.5 / 8 February 1961
Surkhet 81.635 28.588 423.1 / 15 August 2014 92.3 / 14 February 2007
Nepalgunj Airport 81.668 28.101 336.9 / 27 August 2006 78.5 / 17 February 2013
Ghorahi (Dang) 82.484 28.037 298.4 / 15 August 2014 56.2 / 14 February 2007
Jomsom 83.730 28.784 88.8 / 29 November 1974 71.1 / 8 February 1961
Bhairahawa Airport 83.420 27.507 266.5 / 3 August 1998 98.5 / 14 February 2007
Pokhara Airport 83.980 28.200 357 / 18 August 2001 79.7 / 14 February 2007
Lumle 83.818 28.297 308.3 / 9 July 2017 108 / 14 February 2007
Simara Airport 84.980 27.164 300.3 / 1 August 1987 47.2 / 9 February 2019
Kathmandu Airport 85.356 27.704 177 / 23 July 2002 31.3 / 17 February 2011
Jiri 86.232 27.630 400 / 25 August 1966 41.4 / 17 February 2011
Janakpur Airport 85.924 26.711 339.5 / 23 June 2000 45.8 / 24 February 1988
Okhaldhunga 86.504 27.308 170.4 / 10 July 2004 30.2 / 17 February 2013
Dhankuta 87.346 26.983 265 / 24 June 1961 50.4 / 20 February 1970
Dharan Bazzar 87.298 26.792 352 / 28 July 1985 49.4 / 14 February 2007
Biratnagar Airport 87.267 26.484 405 / 2 July 1974 40.8 / 24 February 1988
Taplejung 87.670 27.359 143.1 / 14 July 2002 96.2 / 20 February 1970
Government of Nepal
Ministry of Energy, Water Resource and Irrigation
Department of Hydrology and Meteorology
Climate Division Babarmahal, Kathmandu
Map 1: Distribution of 20 stations used in this report.