Dorset Stour peak-and-delay Library.

Updated 22 Feb 2015

Dorset Stour peak-and-delay Library

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Records for obvious rain-surge peaks, from Monitor stations at
Gillingham, Hammoon, Blandford, Bear Mead, Wimborne, Ensbury, Throop,
about 57 miles of the Dorset Stour; and the delays between these stations.
600 Environment Agency graphs, from which these records derive,
are held for private use by the webmaster .
Notice the large variation in delay times. Asterisks * indicate flood peaks.
Close peaks tend to unite as they move downstream.

Dorset Stour: Rainfall, river-level and watertable at Bear Mead for 2012-13-14

2015

2015

2014

1234567890123456789012345678901 FLOOD-20

FLOOD-21-22-23-24 0123 Winter storms 2013-14

12345 FLOOD-25-26 12345 -27-28

Rainfall 15dec2013 to 14feb2014:-- 600 mms in 61 days

Dryest Sept. since 1910 (9.5mm)

2014

2013

12345678901234567890123456789012345 FLOOD-18

123456789012 FLOOD-19

Change in scales.

1234567890123456789012345678901 St Jude storm

1234567890123456789012345678901 FLOOD-20

FLOOD-21-22-23-24 0123 Winter storms 2013-14

2013

2012

See:Unusual weather 2012 12345678901 FLOOD-12 -13

Rainfall 17apr2012 to 30apr2012:-- 119 mms in 14 days

-14

123456789012 FLOOD-15

Rainfall 02jul2012 to 08jul2012:-- 100 mms in 7 days

FLOOD-16 Change in scales.

Rainfall 20nov2012 to 26nov2012:-- 91 mms in 7 days

12345 FLOOD-17

2012

Dorset Stour: Peaks-and-delays at Gillingham to Throop for 2012-13-14-15

STOUR peak heights (metres) & surge delays (hours) 2015 03jan 08jan 13jan 15jan 29jan 16feb 20feb Place 97 98 99 100 101 102 103 104 105 106 Gill 0.94 1.09 0.78 1.20 0.94 0.70 0.68 21m 19 20 17 9 17 16 12 Hamm 1.83 2.19 1.70 2.85 1.01 1.01 1.78 11m 7 7 6 11 4 4 6 Blan 0.97 1.01 0.94 1.54 0.84 0.84 0.94 12m 6 6 6 17 6 6 7 BearM 275 275 260 355 240 230 260 3m 1 1 1 5 2 2 1 Wimb - 0.89 0.58 1.18 0.77 0.67 0.85 7m 4 6 5 8 3 3 5 Ensb 1.70 1.99 1.74 2.56 1.45 1.37 1.70 3m 2 2 1 1 1 1 1 Thro 0.90 0.97 0.94 1.10 0.80 0.72 0.90 Tot [39] [42] [36] [51] [33] [32] [32] [ ] [ ] [ ]

STOUR peak heights (metres) and surge delays (hours) 107 108 109 110 111 112 113 114 115 Place Gill 21m Hamm 11m Blan 12m BearM 3m Wimb 7m Ensb 3m Thro [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] Tot

STOUR peak heights (metres) & surge delays (hours) 2014 18feb 03mar 29mar 07apr 20apr 22apr 27apr 25may 05jun 19jul Place 78 79 80 81 82 83 84 85 86 87 Gill 1.12 1.05 0.52 0.60 0.57 0.61 1.04 0.68 1.12 0.78 21m 21 24 10 10 18 16 19 10 12 27 Hamm 2.62 2.43 0.77 1.63 0.61 0.73 2.48 0.97 1.62 0.45 11m 7 7 5 4 4 5 10 5 9 8 Blan 1.28 1.15 0.77 0.94 0.67 0.74 1.14 0.80 0.94 0.60 12m 13 5 4 5 5 6 7 6 4 9 BearM 344 325 226 264 190 210 315 229 265 175 3m 4 1 2 2 2 2 2 2 1 3 Wimb 1.33 1.25 0.77 0.94 0.67 0.74 0.96 0.77 0.85 0.60 7m 6 9 3 4 6 3 8 3 9 6 Ensb 2.66 2.52 1.33 1.74 1.00 1.20 2.19 1.41 1.66 0.95 3m 1 2 0 1 1 2 4 1 0 2 Thro 1.25 1.16 0.80 0.91 0.69 0.74 0.99 0.74 0.81 0.51 Tot [52] [48] [24] [26] [36] [34] [50] [27] [35] [55]

STOUR peak heights (metres) and surge delays (hours) 26aug 18oct 07nov 12nov 14nov 23nov 26nov 12dec 17dec 2014 88 89 90 91 92 93 94 95 96 Place 0.62 0.70 0.94 0.82 0.86 0.60 0.91 0.90 0.65 Gill 21 20 21 4 19 17 19 18 17 21m 0.45 1.74 1.93 2.66 2.11 1.01 1.94 1.83 1.01 Hamm 8 4 6 11 5 4 7 9 9 11m 0.59 0.87 0.95 1.21 1.00 0.80 0.96 0.97 0.80 Blan 8 7 6 11 6 7 6 4 4 12m 170 240 265 321 275 225 265 270 231 BearM 3 2 1 3 2 1 2 1 1 3m 0.62 0.91 0.84 0.96 0.82 0.72 0.84 0.91 - Wimb 3 4 4 12 6 4 4 4 2 7m 1.12 1.70 1.91 2.40 2.03 1.49 2.03 1.74 1.41 Ensb 1 1 1 4 1 1 2 1 2 3m 0.55 0.74 0.84 1.01 0.92 0.80 0.93 0.91 0.78 Thro [44] [38] [39] [45] [39] [34] [40] [37] [35] Tot

STOUR peak heights (metres) & surge delays (hours) 2013 16dec 19dec 21dec 24dec 30dec 01jan 04jan 06jan 07jan 16jan Place 59 60 61 62 63 64 65 66 67 68 Gill 0.93 1.37 1.02 2.08 0.95 1.65 2.18 1.22 1.55 1.08 21m 11 10 19 5 20 5 10 9 12 17 Hamm 2.82 2.86 2.70 3.40 2.54 3.18 3.16 2.86 2.82 2.66 11m 12 11 9 4 6 6 5 7 9 13 Blan 1.42 1.51 1.22 2.77 1.15 2.25 2.28 1.73 1.58 1.27 12m 14 17 15 5 9 9 8 10 11 7 BearM 340 350 330 405* 325 388* 380* 370* 358* 350 3m 4 4 4 2 2 2 2 3 3 2 Wimb 1.05 1.10 0.97 2.02 1.12 1.72 1.81 1.59 1.55 1.32 7m 10 11 15 5 11 7 5 6 5 2 Ensb 2.52 2.60 2.50 3.43 2.52 3.13 3.25 2.97 2.91 2.72 3m 1 9 3 3 2 4 3 2 3 3 Thro 1.05 1.08 1.13 1.92 1.14 1.62 1.73 1.51 1.44 1.28 Tot [52] [62] [65] [24] [50] [33] [33] [37] [43] [44]

STOUR peak heights (metres) and surge delays (hours) 19jan 22jan 25jan 26jan 01feb 05feb 07feb 12feb 14feb 2014 69 70 71 72 73 74 75 76 77 Place 1.25 0.85 0.88 0.95 0.85 1.35 1.60 1.06 1.32 Gill 19 16 14 20 9 4 11 15 10 21m 2.58 2.06 1.91 2.22 2.70 2.80 2.84 2.68 2.90 Hamm 7 4 4 5 9 10 7 8 8 11m 1.23 1.09 1.00 1.12 1.32 1.55 1.67 1.33 1.73 Blan 11 7 6 7 14 16 11 19 13 12m 340 305 260 310 350 358* 365 360 365 BearM 3 2 2 1 4 5 3 5 4 3m 1.23 1.12 1.05 1.14 1.27 1.50 1.55 1.38 1.53 Wimb 6 8 10 7 5 5 6 2 8 7m 2.64 2.44 2.44 2.48 2.60 2.85 2.91 2.74 2.85 Ensb 2 1 2 1 3 4 3 3 2 3m 1.20 1.10 1.07 1.14 1.20 1.44 1.47 1.32 1.42 Thro [48] [38] [38] [41] [44] [44] [41] [52] [45] Tot

STOUR peak heights (metres) & surge delays (hours) 2012 20dec 22dec 24dec 29dec 31dec 12jan 23jan 27jan 30jan 01feb Place 40 41 42 43 44 45 46 47 48 49 Gill 1.51* 1.66* 1.25 1.13 0.87 1.13 0.60 1.27 1.17 0.97 21m 15 16 20 15 13 12 11 9 16 13 Hamm 2.94* 2.90* 2.70* 2.58 1.98 2.76* 2.19 2.82* 2.66 2.06 11m 6 7 6 10 5 8 4 12 9 6 Blan 1.87* 1.73* 1.39* 1.28* 1.07 1.47* 1.10 1.52* 1.30 1.10 12m 13 14 16 8 5.5 17 5 15 9 5 BearM 370* 353* 345 340 290 350* 300 360* 340 300 3m 4 4 5 3 1.5 5 3 4 3 2 Wimb 1.51* 1.48* 1.30* 1.18* 1.05* 1.27* 1.01* 1.33* 1.18 1.03 7m 10 8 8 8 7 5 7 7 8 7 Ensb 2.95* 2.93* 2.78* 2.64* 2.40* 2.72* 2.39* 2.76* 2.60 2.36 3m 3 2 3 2 1 2 1 2 1 1 Thro 1.42* 1.38* 1.23* 1.15 1.05 1.20* 1.16 1.25* 1.16 1.05 Tot [51] [51] [58] [46] [33] [49] [31] [49] [46] [34]

STOUR peak heights (metres) and surge delays (hours) 05feb 10feb 14feb 16mar 17mar 22mar 13apr 28oct 04nov 2013 50 51 52 53 54 55 56 57 58 Place 0.67 1.05 0.72 0.75 0.75 0.73 0.50 1.05 0.85 Gill 16 18 12 15 12 16 12 23 16 21m 0.95 2.54 1.43 2.06 2.06 2.22 0.95 1.98 1.35 Hamm 4 9 4 6 5 6 4 7 5 11m 0.83 1.21 0.91 1.05 1.05 1.09 0.80 0.91 0.82 Blan 5 7 5.5 6 5 5.5 4 6 5 12m 247 330 250 290 290 300 229 260 230 BearM 2 2 1.5 1 1 1.5 1 1 1 3m 0.77 1.10 0.84 0.97 0.90 0.95 0.90 0.73 0.60 Wimb 4 5 4 7 5 6 4 3 6 7m 1.75 2.52 1.87 2.16 2.04 2.12 1.12 1.83 1.42 Ensb 1 1 1 0 1 0 1 1 1 3m 0.90 1.10 0.92 1.01 0.97 0.99 0.82 0.80 0.73 Thro [32] [42] [28] [35] [29] [35] [26] [41] [34] Tot

STOUR peak heights (metres) & surge delays (hours) 2012 04jul 08jul 13jul 18jul 15aug 25aug 29aug 24sep 06oct 09oct Place 20 21 22 23 24 25 26 27 28 29 Gill 0.91 2.03* 1.09 0.70 0.86 0.47 0.93 0.84 1.28 0.79 21m 21 4 15 18 18 23 18 18 18 19 Hamm 1.67 3.26* 1.95 0.87 0.75 0.55 1.59 1.60 2.78* 2.10 11m 5 5 7 4 5 7 6 4 10 4 Blan 0.91 2.30* 1.04 0.79 0.73 0.62 0.90 0.90 1.31* 1.01 12m 9 9 9 8 8 9 7 7 15 8 BearM 244 390* 270 226 210 190 262 272 342 280 3m 2 3 5 2 2 3 2 2 6 4 Wimb 0.90* 1.78* 0.92* 0.67 0.72 0.60 0.86 0.80 1.10* -* 7m 5 8 7 4 5 4 5 4 8 6 Ensb 1.87* 3.37* 2.11* 1.48 1.30 0.96 1.63 1.63 2.40* 2.04* 3m 2 6 2 1 1 4 1 1 1 1 Thro 0.76 1.79* 0.91 0.73 0.67 0.58 0.77 0.75 1.00 0.89 Tot [44] [35] [45] [37] [39] [50] [39] [36] [58] [42]

STOUR peak heights (metres) and surge delays (hours) 11oct 17oct 01nov 04nov 21nov 23nov 25nov 26nov 14dec 2012 30 31 32 33 35 36 37 38 39 Place 1.73* 1.00 1.11 1.33 1.64* 1.59* 1.75* 1.24 0.73 Gill 19 22.5 19 20 5 14 5 6 13 21m 2.71* 2.46 2.10 2.74* 2.98* 2.82* 3.06* 2.86* 2.10 Hamm 12 4.5 5 12 6 10 7 7 8 11m 1.25* 1.14* 1.04 1.28* 1.93* 1.52* 2.09* 1.63* 1.05 Blan 13 15 5.5 16 12 18 11 10 5 12m 347 324 306 351* 359* 352* 362* 352* 295 BearM 4 5 1.5 4 4 6 2 3 1 3m 1.00* -* -* 1.06* 1.55* 1.40* 1.67* 1.48* 0.95* Wimb 8 5 8 7 8 7 7 7 7 7m 2.40* 2.40* 2.11* 2.50* 3.06* 2.90* 3.19* 2.95* 2.12* Ensb 1 1 1 1 4 2 3 1 0 3m 1.00 1.02 0.94 1.06 1.50* 1.36* 1.62* 1.48* 0.98 Thro [57] [53] [40] [60] [39] [57] [35] [34] [34] Tot

STOUR peak heights (metres) & surge delays (hours) 2011 13dec 16dec 31dec 01jan 03jan 24jan 05feb 10feb 04mar 23apr Place 01 02 03 04 05 06 07 08 09 10 Gill 1.28 0.72 0.58 0.52 1.02 0.56 0.42 0.39 0.75 - 21m 22 16 18 15 22 19 12 18 16 7 Hamm 2.56 1.71 0.52 0.81 2.30 0.55 0.52 0.46 1.51 - 11m 11 6 5 6 6 7 4 5 5 4 Blan 1.09 0.87 0.65 0.71 1.01 0.59 0.85 0.52 0.57 - 12m 7 7 7 5 5 8 6 6 8 7 BearM 282 230 190 ? 260 170 230 ? 170 - 3m 2 2 2 1 1 2 1 2 3 2 Wimb 0.96* 0.76 0.72 0.75 0.96* 0.66 0.76 0.61 0.65 - 7m 7 3 3 5 6 2 4 6 2 5 Ensb 2.07* 1.55 1.00 1.13 1.93* 0.75 1.41 0.55 0.69 - 3m 1 1 3 1 2 2 1 1 3 2 Thro 0.91 0.78 0.63 0.67 0.87 0.56 0.75 0.52 0.56 - Tot [50] [35] [38] [33] [42] [32] [33] [38] [32] [27]

STOUR peak heights (metres) and surge delays (hours) 25apr 29apr 01may 10may 07jun 11jun 15jun 22jun 24jun 2012 11 12 13 14 15 16 17 18 19 Place 1.33* 1.42* 1.40* 0.58 0.65 0.56 1.08 0.68 0.86 Gill 6 15 19 7 19 22 13 13 17 21m 3.02* 2.98* 2.82* 1.37 1.39 2.34 0.63 1.51 1.71 Hamm 9 8 9 5 6 7 5 5 5 11m 1.87* 1.85* 1.47* 0.86 0.81 1.09 0.68 0.87 0.92 Blan 22 21 15 5 6 8 8 8 8 12m 360* 376* 360* 244 225 282 193 237 246 BearM 5 4 5 2 4 4 4 1 2 3m 1.34* 1.40* 1.26* 0.84 0.80 0.94* 0.70 0.84 0.90* Wimb 9 7 6 4 5 6 4 4 4 7m 2.88* 2.95* 2.80* 1.63 1.59 2.18* 1.26 1.60 1.85* Ensb 3 6 5 2 1 2 1 1 1 3m 1.25* 1.31* 1.19 0.82 0.69 0.87 0.62 0.73 0.77 Thro [54] [61] [59] [25] [43] [49] [35] [32] [37] Tot

Updated 22 Feb 2015