Observation #12253 07-07-2018 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#12253
Date and Time	Saturday 7th July 2018 09:40am
Approved	Approved

Notes

AHD G6 2.20 @ 09:30 2.38 @ 16:02

Heavy local rainfall 04-07-18 08-07-18 = 43 ml. causing flooding from run off but no water across any roads or tracks

Storm surge from High 7m.seas (WSW swell 13-14 secs) & South Gale force winds, waves entering channel over a wide area & crossing over high sand build up then continuing down channel into estuary where they turn sharply east & travel along south side of estuary. Water green upstream to past G2. Wind raising small waves that travel all across the estuary to north

Wind impacting/scouring sand dunes with stronger gusts carrying it along channel & into the estuary

Rock falls have increased at South & east sides of Pt Ronald

No photos from Gp1 site because of dangerous conditions

Mouth Observation

Mouth state	Open
Previous	O O O O O O O O O O O O O O O O O O O O O P C C C C C C C O O O O C C C C C C C C C O O O O O C O O O O O O O O
Flow Present?	Yes
Previous	Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y N N N N N N N N Y Y Y Y N N N N N N N N N Y Y Y Y Y N Y Y Y Y Y Y Y Y
Flow Direction	In
Previous	O O O O O O O O O O O O O O O O O O O O O N N N N N N N N O I O O N N N N N N N N N O O O O O N O I O O O I O O

	Above Sea	Above Estuary
Berm Height (m)
Berm Length (m)

Physical Condition

	Current	Mode
Wind Direction	South
Beaufort Scale	Gale, fresh gale
Sea State	High

Water Levels and Tides

Water Level	Start	Finish
Height (m)	1.23m	1.24m
Time (hh:mm)	09:40	10:40
Tidal influence	Yes
Tidal Range	Time	Height
High	05:24	0.780
Low	09:38	0.710

Observation Documents

Link	Date	File name
Download	11-07-2018 14:05	Ge_20180707_waves_across_entrance_into_channel_023.JPG
Download	11-07-2018 14:05	Ge_20180707_waves_entering_over_high_sand_build_up_020.JPG
Download	11-07-2018 14:05	Ge_20180707_wind_gusts_blowing_sand_into_eatuary_022.JPG
Download	11-07-2018 14:05	Ge_20180707_Galeforce_wind_driven_waves_to_north_012.JPG