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The rainfall data can be either a user-defined time series or come from an external file. Several different popular rainfall file formats currently in use are supported, as well as a standard user-defined format. The principal input properties of rain gages include: rainfall data type (e.g., intensity, volume, or cumulative volume)
Most modern rain gauges generally measure the precipitation in millimetres in height collected during a certain period, equivalent to litres per square metre. Previously rain was recorded as inches or points, where one point is equal to 0.254 mm or 0.01 of an inch. [16] Rain gauge amounts are read either manually or by automatic weather station ...
It is the south-west monsoon which brings most of the rain, although rain due to western disturbances [5] and the north-east monsoon also contribute small quantities towards the overall rain in the state. [4] The rain can vary from an annual average of 170 cm in hilly areas to less than 80 cm in the west. [4] Given that most of this rainfall is ...
Here are rainfall amounts, in inches, from the last 24 hours (unless otherwise noted) by locality, according to National Weather Service St. Louis: Illinois locations. Belleville: 6.23, 6.33 ...
They use three levels of warning. The amber warning indicates that a rainfall intensity of 30 millimetres (1.2 in) per hour is expected. The red warning indicates rainfall amounts of 50 millimetres (2.0 in) per hour are anticipated. The black warning indicates that rainfall rates of 70 millimetres (2.8 in) are possible. [19]
Heavy snow or rain can bring transportation and commerce to a stand-still, [87] as well as cause flooding in low-lying areas. [88] Excessive heat or cold waves can sicken or kill those with inadequate utilities, and droughts can impact water usage and destroy vegetation.
Weather radar in Norman, Oklahoma with rainshaft Weather (WF44) radar dish University of Oklahoma OU-PRIME C-band, polarimetric, weather radar during construction. Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.).
In the area around Memphis, Tennessee and across the state of Mississippi, there are two rainfall maxima in the winter and spring. [44] [45] Across Georgia and South Carolina, the first of the annual precipitation maxima occurs in late winter, during February or March. [46] [47] Alabama has an annual rainfall maximum in winter or spring and a ...