How do you read a weather forecast?
The basic weather forecast includes the following weather elements: precipitation, probability of precipitation, sky condition, temperature and wind. Forecasts describe the weather in 12-hour increments such as “today”, “tonight” and “tomorrow.” Forecasters often use descriptive terms to convey the forecast message.
How do you read weather clouds?
Here are some hints for predicting weather by reading clouds. Isolated, wispy, or very high clouds are an indication of fair weather. Crowded, dense, dark, and towering clouds indicate changing or worsening weather. The sharper the edge of a thundercloud and the darker its color, the more violence it may contain.
How do you read the rain forecast?
According to the National Weather Service, Probability of Precipitation or (PoP) is “PoP = C x A where “C” = the confidence that precipitation will occur somewhere in the forecast area, and where “A” = the percent of the area that will receive measurable precipitation, if it occurs at all.”
Can leaves predict the rain?
“When leaves show their undersides, be very sure rain betides.” … The leaves are actually reacting to the sudden increase in humidity that usually happens before a storm. Leaves with soft stems can become limp in response to abrupt changes in humidity, allowing the wind to flip them over.
How do you read weather pressure?
A barometric reading below 29.80 inHg is generally considered low, and low pressure is associated with warm air and rainstorms.
- Rising or steady pressure indicates clearing and cooler weather.
- Slowly falling pressure indicates rain.
- Rapidly falling pressure indicates a storm is coming.
How do you read weather percentages?
What Does the Percentage of Rain Mean? According to a viral take on the internet, the percentage of rain doesn’t predict the chances of rain. Instead, it means a certain percentage of the forecasted area will definitely see rain—so if you see a 40% chance, it means 40% of the forecasted area will see rainfall.
What do high wispy clouds mean?
High Clouds Cirrus
Because at the altitudes at which they form the air temperature is below freezing, they tend to be comprised primarily of ice crystals. … Cirrus means a “curl of hair.” These wispy clouds are composed of ice and consist of long, thin streamers that are also called mare’s tails.
What do big fluffy clouds mean?
Cumulus clouds are the while puffy clouds. … White, fluffy cumulus clouds suggest fair, dry conditions. Fair-weather cumulus clouds do not last long. When they produce rain showers, it is most often light and brief. If you see these fluffy clouds turning dark or gray though, it is going to rain.
What can clouds tell you?
By watching the movement of cirrus clouds you can tell from which direction weather is approaching. When you see cirrus clouds, it usually indicates that a change in the weather will occur within 24 hours. … Cirrocumulus clouds are usually seen in the winter and indicate fair, but cold weather.
What does 70% rain mean?
Basically, it means that a certain percentage of the forecast area is expected to get rain. … So, hold onto your umbrellas because after today we have a 70 percent chance of rain for Thursday and a 60 percent chance of rain for Friday.
What does 40 percent precipitation mean?
According to the National Weather Service, if you see a 40 percent chance of rain, “there is a 40 percent chance that rain will occur at any given point in the area.”
How do you read weather highs and lows?
The forecast high is the highest temperature expected to occur that day, which in most cases is in the afternoon. The forecast low is the lowest temperature expected to occur during the next overnight period and on the vast majority of days will occur around daybreak the following morning.
What does it mean when leaves flip over?
The leaves of deciduous trees, like maples and poplars, do often to turn upward before heavy rain. The leaves are actually reacting to the sudden increase in humidity that usually precedes a storm. Leaves with soft stems can become limp in response to abrupt changes in humidity, allowing the wind to flip them over.
Why do plants flip their leaves?
Why do the leaves on trees seem to turn upside down before a storm? … With the wind in this direction, the plant or tree orients itself to get optimum sunlight, and the leaves are in an unstable position with respect to the wind moving past them. This instability makes the leaves flip over.
What plants can predict weather?
Chickweed, dandelions, bindweeds, wild indigo, clovers, and tulips all fold their petals prior to the rain. In coastal areas, seaweed is often used as a natural weather forecaster. Kelp, for example, shrivels and feels dry in fine weather, but swells and becomes damp if rain is in the air.