20220218 22 Grant SWMP · MCU22/0172

BOM IFDs Frequent and Infrequent Storm Events
Project number:                           20220218
Street Address:                           22 Grant St
Locality:                                 Noosa Heads, NSC                                                                                                     Date:   5/09/2022

Source :                                 http://www.bom.gov.au/water/designRainfalls/revised-ifd/

Location:                                Latitude                                   -26.457
                                         Nearest Latitude            26.4625 (S)
                                         Longitude                                  153.08
                                         Nearest Longitude           153.1125 (E)

Date obtained:                                     29/03/2022


                                           Annual Exceedance
                                            Probability (AEP)
Duration                                        63.20%                       50%#             20%*           10%          5%          2%          1%
1 min                                                         174                       196           264           309         352         407         449
2 min                                                         147                       167           230           274         317         377         423
3 min                                                         138                       157           215           255         294         347         389
4 min                                                         132                       149           204           240         276         323         359
5 min                                                         126                       142           193           227         260         303         335
10 min                                                        103                       116           156           182         206         237         260
15 min                                                       87.4                      98.4           132           154         174         200         219
20 min                                                       76.3                        86           115           134         153         176         193
25 min                                                          68                     76.7           103           120         137         158         174
30 min                                                       61.6                      69.5          93.7           110         125         145         160
45 min                                                       48.7                      55.1             75         88.3         101         118         131
1 hour                                                       40.9                      46.4          63.6          75.3        86.7         102         114
1.5 hour                                                     31.8                      36.2          50.2          59.9        69.4        82.3        92.4
2 hour                                                       26.5                      30.3          42.4          50.8        59.2        70.6        79.6
3 hour                                                       20.5                      23.6          33.4          40.4        47.3        56.9        64.4
4.5 hour                                                     15.9                      18.4          26.4          32.1        37.9        45.7        51.9
6 hour                                                       13.4                      15.5          22.4          27.3        32.3        39.2        44.6
9 hour                                                       10.4                      12.2          17.8          21.8        25.9        31.4        35.8
12 hour                                                      8.76                      10.2          15.1          18.5          22        26.8        30.6
18 hour                                                      6.83                         8          11.8          14.6        17.5        21.4        24.5
24 hour                                                        5.7                     6.68          9.94          12.3        14.7        18.1        20.8
30 hour                                                      4.94                      5.79          8.63          10.7        12.8        15.8        18.2
36 hour                                                      4.38                      5.13          7.66          9.51        11.4        14.2        16.4
48 hour                                                        3.6                     4.21            6.3         7.84        9.47        11.8        13.7
72 hour                                                      2.68                      3.14            4.7         5.87        7.12        8.94        10.5
96 hour                                                      2.16                      2.52          3.77          4.72        5.74        7.24          8.5
120 hour                                                     1.81                      2.12          3.16          3.96        4.81        6.08        7.14
144 hour                                                     1.57                      1.83          2.73          3.41        4.14        5.23        6.14
168 hour                                                     1.38                      1.62            2.4            3        3.64        4.58        5.36


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BOM IFDs Frequent and Infrequent Storm Events

 

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Project number: 20220218
Street Address: 22 Grant St
Locality: Noosa Heads, NSC Date: 5/09/2022
Source = http://www.bom.gov.au/water/designRainfalls/revised-ifd/
Intensit
Location: Latitude 26487 ee {AEP Anal Exceedance Proabity
Nearest Latitude 26.4625 (S) 3000
Longitude 153.08 iit. Legend |
Nearest Longitude 153.1125 (E) xs00 | lea was |
Date obtained: 29/03/2022 oe =< 3%: |]
[ oa x |]
=i H
Annual Exceedance 400 —e— 10% el
Probability (AEP) 300 o
Duration 63.20% SO%H 20%* 10% 5% 2% 1% 200 ae
Fz) 7 Fa 309 3a aa aaa
17 167 230] 77 307 377 a soo =
133 157 23 253] 234 37 39
132 19 24 2a0] 77a 323 359 os
24 12 133 27] 260] 303 335
103 ra 156 12 20 27 260]
wal 384 rH 153 774 20] 79 .
763 86 rr 134 153 74 133
8 763 103 720 137 ra 174
61.6] 69.5] 93.7| 110] 125] 145] 160] »
a5 min 187] $5 75 283 101 rrr) Fr
hour 40.9] 46.4) 63.6] 75.3| 86.7| 102| 114) 5
1.5 hour 318 36.2 50.2 59.9 69.4] 82.3 92.4] +
2 hour 26.5| 30.3 42.4] 50.8 59.2| 70.6 79.6 3
3 hour 20.5] 23.6) 33.4) 40.4} 47.3] 56.9] 64.4) 2
4.5 hour 15.9] 18.4) 26.4) 32.1 37.9] 45.7] 51.9]
[6 hour 13.4] 155 22.4] 273 323 39.2 44.6 ab 4
9 hour 10.4} 12.2| 17.8) 21.8) 25.9] 31.4) 35.8]
12 hour 8.76 10.2| 15.1) 18.5] 22] 26.8) 30.6]
18 hour 6.83 a 118 14.6 175 214] 245 ser 1
24 hour 5.7| 6.68] 9.94) 12.3] 14.7] 18.1] 20.8)
30 hour 4.94) 5.79] 8.63] 10.7] 12.8) 15.8] 18.2| i ii H i i i : i i Eb eis
36 hour 4.38) 5.13] 7.66 9.51] 11.4) 14.2| 16.4 oy 209345 wo 15 30 1 203 6 DR 1 203 4567
48 hour 3.6] 4.21 6.3] 7.84) 9.47] 11.8) 13.7]
72 hour 2.68 3.14] 47] 5.87 72 8.94] 105 Snlattes I hous I days
96 hour 2.16) 2.52| 3.77) 4.72| 5.74] 7.24) 8.5]
120 hour 1.81 2.12| 3.16) 3.96] 4.81 6.08] 7.14) Duration
144 hour 1.57] 1.83] 2.73] 3.41) 4.14) 5.23] 6.14)
168 hour 1.38] 1.62) 2.4) 3 3.64) 458) 5.36] ©Copyright Commonwealth of Australia 2016, Bureau of Meteorology (ABN 92 637 533 532)