Sensor Codes (increments) P Precipitation gauge, tipping bucket type, measure in 1mm or 0.394 inch increments, check-in every 12 hours and each increment during an event (inches) S Stage (water level), mostly pressure transducer type, check-in every 12 hours, usually each 0.2 foot increment during an event (feet) T Air temperature, sensor read every 5 minutes, sensitivity of 3 degrees (degrees Fahrenheit) H Relative humidity, sensor read every 5 minutes, sensitivity of 1.95 percent (%) W Two types of wind data: Average wind speed, each 3km of wind run (mph) Wind direction, each 3km of wind run (degrees azimuth) B Barometric pressure, sensor read every 17 minutes, sensitivity of 1.95mb (mb)