Below is a program for assessing the best species to fish for given the conditions you are going to fish in.
INSTRUCTIONS
1) Only enter data in the green cells using the abbreviations indicated in the right hand column (white cells)
2) Click the cell first and then type in your data and press enter, the cursor will automatically go to the next cell down and then enter the appropriate data/abbreviation  again and work your way down the green boxes.
3) You can use the links provided to get the best information for weather, temperatures etc and the moon phase. these are  situated in cells c18 and c19.
4) If you accidentally type into the cells other than the green ones, this may disrupt the program; it does not do any harm but you may have to re-download the website again.
5) The table and graph will update automatically indicating the best species that suit the conditions you have entered, choose a venue/swim that best suits the top two species indicated and this should give you the best chance of catching fish.
6) You can leave some green cells blank, the program will still assess the data given but it works better with as much data as you can provide.

Note:-
Percentages are for each species for the time of year, a six week period, not the whole year.
How did you get on? let us know with the contact form. thanks.



INSTRUCTIONS FOR ABBREVIATIONS

YOU MAY WANT TO USE THE BBC WEATHER LINK TO FIND INFORMATION. WHEN YOU CLICK THE LINK JUST TYPE IN THE TOWN YOU ARE FISHING AND A 5 DAY FORECAST WILL APPEAR FOR THE AREA. IF YOU HOVER YOUR CURSOR OVER THE WIND DIRECTION A BOX WILL APPEAR GIVING AIR PRESSURE, WIND SPEED AND DIRECTION.

MONTH and WIND:-Month, wind direction and wind speed should be clear but, enter z (zero) for no wind i.e., still conditions.

WEATHER:-The weather can be changeable but try to enter the weather that you expect to be the most prevalent during fishing :- S=sunny, SC=sun cloud combination, O=overcast and R=predominately rainy conditions.

AIR and WATER TEMPERATURES:-Air temperature should be evident from the weather forecast but, water temperature needs to be estimated. On average the water temperature will be 4 degrees lower than the average air temperature from the previous 3-4 days. Bear in mind that in winter the nights are longer and colder and this will have a greater effect on the water temperature. You may not be absolutely correct every time but the program sorts both air and water temperatures into ranges of approximately 4-5 degrees difference. This allows for some latitude so you will often be within the correct range. The ranges are shown below :-

AIR TEMPERATURE RANGES:-33-37f,  38-42f,  43-48f,  49-54f,  55-60f, 61-65f,  66-70f,  71-75f, 76+f

WATER TEMPERATURE RANGES:-31-35f, 36-40f, 41-45f, 46-50f, 51-55f, 56-60f, 61-65f, 66-69f, 70+f

BAROMETRIC PRESSURE:-The BBC website gives barometric readings or you, may own a barometer. If you cannot obtain the pressures use the weather to make estimation. Generally the worse the weather the lower the reading. If it is stormy and/or very rainy enter 999. For overcast conditions enter 1005. For sun/cloud enter 1015 and for bright sunny weather enter 1025.The program sorts the barometric reading into ranges with a difference of 10 pressure points similar to the air and water temperatures. These are set below :-

BAROMETRIC PRESSURE RANGES:-0-999, 1000-1009, 1010-1019, 1020-1029, 1030+

WATER COLOUR:-Estimate this on the amount of rain that has fallen in the period prior to fishing. The four abbreviations used are C, SC, FC, and VC. C represents very clear water conditions and VC represents very coloured water usually flood conditions when the water is a chocolate colour. SC and FC are stages between the extreme states of clear and very coloured. SC for some colour and FC for fairly coloured.

MOON PHASES:-The moon cycle is just over 29 days which is divided into four phases. Use the following abbreviations:-  NEW = moon, 1Q   = 1st quarter,  FULL =   full moon,  2Q =   2nd quarter,  Try using the link for moon phases which gives chart for 2017.

History

Records were started around 1999 recording the month, wind speed and direction, weather, air and water temperatures, barometric pressure, water colour and moon phases. A program was devised from these records to ascertain which species was best suited to any conditions on a given day. It has been field tested and revised since 2005 to provide a good guide. The program is being updated constantly but only species were a large number of data has become available have been included. these are Tench, Carp, Bream, Roach, Chub, Crucian Carp and Rudd. A separate division for Big Roach has been included.