Bangladesh Flash Flood Guidance Bulletin

From: Department of Hydrology and Meteorology, Bangladesh (Contact: Bangladesh Hydrology Website)

Diagnostic Guidance:

Based on Merged Mean Areal Precipitation at 0600 UTC, rainfall is up to mm in last 6 hours and up to mm in last 24 hours over few watersheds and neighbourhood of .

Land Surface Model shows few nearly saturated watersheds up to % over and up to % soil saturation over remaining parts of the country.

Prognostic Guidance:

Dynamic Global (GFS) & Mesoscale Model (WRF & NCUM) forecasts no rainfall up to mm in next 24 hours.

Observed Flash Flood Threat (IFFT) till UTC of :

No of IFF Threats : Images Name

S.No.	Threat Description	Divisions	Image
0	No Flash flood threat observed in last 06 hours.	—	/bangladesh/static/Images/DND%20Images/No%20IFFT.png
1			Only image files allowed

2			Only image files allowed

3			Only image files allowed

4			Only image files allowed

Persistent Flash Flood Threat (PFFT) till UTC of :

No of PFF Threats : Images Name

S.No.	Threat Description	Divisions	Image
0	No Persistent flash flood threat likely in next 06 hours.	—	/bangladesh/static/Images/DND%20Images/No%20PFFT.png
1			Only image files allowed

2			Only image files allowed

3			Only image files allowed

4			Only image files allowed

Surface runoff/ Inundation may occur at some fully saturated soils & low-lying areas over Area of Concern (AoC) as shown in map due to expected rainfall occurrence in next 6 hours.

Flash Flood Risk (FFR) till UTC of :

No of FF Risks : Images Name

S.No.	Risk Description	Divisions	Image
0	No Flash flood risk likely in next 24 hours.	—	/bangladesh/static/Images/DND%20Images/No%20FFR.png
1			Only image files allowed

2			Only image files allowed

3			Only image files allowed

4			Only image files allowed

Surface runoff/ Inundation may occur at some fully saturated soils & low-lying areas over Area of Concern (AoC) as shown in map due to expected rainfall occurrence in next 24 hours.

Bangladesh Flash Flood Guidance Bulletin

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