Weather Station Recommendations?

[Altronics]

All PerformAIRE systems allow for Multi-Run and Single Run prediction capability.

Multi-Run - Requires data base of runs to establish a prediction algorithm between weather variables and your vehicles performance.

Single Run - Uses last "Good" run or time run and standard factors to calculate performance based on weather. Also allows user to enter custom factors for their vehicle.


Using local or phone weather:
Generally local weather is provided by the nearest weather collection station from you current location (Schools, municipalities, airports). This can vary from a few miles to 10's of miles depending on your location. These systems typically update the weather a few times per hour. Although this data can be helpful, it is not as accurate as readings at the track using the SAME equipment. This can definitely add some confusion to your prediction if one reference station is calibrated to a different barometric reference than another!
So maybe if it is mid day and the temperature is stable, getting a local reading twice an hour may work OK, but racing in the morning or late afternoon to evening when the DA is changing 100' every 10-15 minutes if going to prove difficult if you don't have current accurate readings.


WIND Data:
Another important factor when trying to predict ET or Throttle Stop settings regarding weather stations is the use of a Wind Sensor. 50% of your weather prediction can come from the effect of the wind. Neglecting or disregarding what the wind is doing is going to make it difficult to predict your car accurately. Wind is one of the hardest weather parameters to measure because it is inconsistent, but it still effects the performance. Using a laptop based system with streaming graphical weather and wind info and watching the average and gust wind speed is critical to determine what may happen going down the race track. Even having a pager with the last half hour of wind data can help you know what the best and worst case effect the wind will have on your run and your ET.