Search results
Results from the WOW.Com Content Network
The scale of dBZ values can be seen along the bottom of the image. dBZ is a logarithmic dimensionless technical unit used in radar.It is mostly used in weather radar, to compare the equivalent reflectivity factor (Z) of a remote object (in mm 6 per m 3) to the return of a droplet of rain with a diameter of 1 mm (1 mm 6 per m 3). [1]
The letters in the top row stand for months: January, February, etc. The bars and numbers convey the following information: The blue bars represent the average amount of precipitation (rain, snow etc.) that falls in each month. The blue numbers are the amount of precipitation in either millimeters (liters per square meter) or inches.
In areas where imperial units are used (primarily the United States), liquid precipitation (rain and drizzle) is measured in intervals of 0.01 inches (0.25 mm), while snow, ice pellets, and most other precipitation types are measured in intervals of 0.1 inches (2.5 mm). [1] Freezing rain is sometimes measured in intervals of 0.1 inches (2.5 mm ...
Some models had as much as 10 inches hitting the metro-east. According to a tweet from the NWS , “Further north, warm air remained stubborn causing a slower transition from rain to snow, thus ...
The combination of milder air followed by rain in locations with several inches of snow depth could lead to rapidly melting snow, ponding on roadways and flooding. Meanwhile, more snow is forecast ...
Snowfall rates play an important role in winter storm forecasts. Here's a look at some extreme examples from the past that illustrate how much can fall in an hour.
Environment Canada reports a chance of precipitation (COP) that is defined as "The chance that measurable precipitation (0.2 mm of rain or 0.2 cm of snow) will fall on any random point of the forecast region during the forecast period." [7] The values are rounded to 10% increments, but are never rounded to 50%. [8]
The snow melts into rain then refreezes just as it hits the cold ground. Since the rain is not freezing until it reaches the surface, it still falls like regular rain and therefore looks and feels ...