20
BAMOS March 2017
Article was about half a metre in depth, particularly against the south facing wall of the house at the northern end of the veranda. Fortunately the roof beams are extra size! I discovered a minor leak in the family room as water seeped through a cracked roof tile through the sarking and batts. Hail banked up on our flat front veranda roof to some depth as the roof gutters were full of hail. My work shed which has a flat galvanised corrugated roof was severely flooded as water poured through the sheeting overlap across the centre of the roof and flowed through the ceiling.
Neighbouring properties suffered significant water damage in situations where their roofs had valleys as part of their structure.
It appears that the hail banked up in the valleys, particularly on west facing slopes, causing rain water to overflow the sides of the valleys into the roof spaces.
Damage to vegetation was extreme. Many trees, both native and exotic, had most of their leaves shredded leaving a carpet of leaves on the ground. We lost all our grapes, a lot of the peaches and figs. All the vegetables were destroyed, particularly the tomatoes. The only plants to survive virtually undamaged were the rhubarb!
Summary of the observations extracted from the Davis Vintage Pro 2 data logger, set at 15 minute intervals are shown in Table 1 and Figure 4.
Table 1. Summary of the observations extracted from Gavin O’ Brien’ s Davis Vintage Pro 2 data logger in Canberra, 29 January 2016.
Time( AEDT)
Temp.(º C)
RH(%)
DP(º C)
Wind Dir
Velocity( km hr-1)
Dir Gusts
Gust Velocity( km hr-1)
Mean Sea Level Pressure( hPa)
Rainfall rate( mm hr-1)
1700 21.2 82 18 NE 8 NNNE 19 998.3 0.0 0 1705 21.3 82 18.1 NE 8 NNE 15 998.2 0.0 0 1710 21.4 81 18 NE 10 NNE 21 998.3 0.0 0 1715 21.4 81 18 NNE 11 N 19 998.3 0.0 0 1720 21.3 82 18.1 NNE 6 NNE 13 998.1 0.0 0 1725 21.3 82 18.1 NNE 6 NNE 13 997.9 0.0 0 1730 21.2 82 18 NNE 8 W 34 998.3 0.0 0 1735 21.0 78 17.0 SW 15 WSW 29 998.3 0.0 0 1740 20.5 81 17.1 SSW 11 SSW 19 999.1 121.2 2 1745 20.0 83 17.1 S 8 SSW 18 999.3 122.6 6.4 1750 20.1 84 16.7 S 0 SSW 3 999.7 140.4 7.6 1755 19.4 87 16.7 SE 0 SE 18 999.5 162.2 5.2 1800 18.9 90 16.7 ESE 10 ESE 15 999.9 12.0 0.2 1805 18.4 92 16.7 ESE 5 ESE 13 999.7 1.8 0 1810 18.1 92 16.7 ESE 0 ESE 6 999.7 1.8 0.2 1815 18.0 93 16.8 C 0 C 0 999.5 1.2 0 1820 17.9 95 17.3 ESE 2 ESE 8 999.5 1.2 0 1825 18.1 94 17.4 C 0 C 0 999.6 0.8 0 1830 18.4 93 17.5 C 0 C 0 999.6 0.0 0 1835 18.6 92 17.5 ESE 0 ESE 2 999.7 0.0 0 1840 18.8 93 17.8 ESE 0 ESE 8 999.7 0.0 0 1845 19.1 91 17.6 C 0 C 0 999.8 0.0 0
Rain total
Rainfall( mm)
21.6