What is XCWeather?
The forecast data displayed by XCWeather is from a high quality numerical weather prediction model run by the United States government (GFS) and is updated every six hours. The output from this model gives forecast data in the form of a grid of points at ¼ degree (~27km) intervals.
What does the red arrow in XCWeather mean?
gusting
Red arrows show that the wind is gusting. The wind is said to be gusting if the maximum speed is 10 knots or more above the current average speed.
Is XCWeather app free?
XCWeather is a free app for Android published in the Astronomy list of apps, part of Home & Hobby. The company that develops XCWeather is XCWeather. The latest version released by its developer is 3.3.
What weather app do crane drivers use?
WINDCRANE is used by crane rental companies and construction sites, offshore rigs and jack-up vessels, outdoor events, tall buildings and hoists, research and academia.
What does high pressure mean in weather?
High pressure means the air is heavy, and it sinks. Sinking air makes the environment very stable. Under high pressure you can generally expect sunny skies and calm weather. Low pressure is what causes active weather.
What is purple on a weather map?
The location of the colored radar echoes indicate where precipitation is falling and the various colors indicate the intensity of the precipitation through the color code in the legend below. Shades of blue represent lighter precipitation while red and purple indicate heavier precipitation.
How do I read isobars?
Isobars are the lines on a weather chart. Isobars join points of equal pressure. When the lines are close together, the wind is strong. When the lines are far apart, the wind is light.
Who has most accurate wind forecast?
The ECMWF HRES model consistently rates as the top global weather model from a national weather service with the highest rating scores. In March 2016 ECMWF increased the resolution of their model to a record breaking 9km resolution, which is currently the highest resolution global model available.
Is Windy COM accurate?
Windy started in 2014 as the pet project of a kiter, helicopter and jet pilot “who seeks the wind, waves, METARs and powder snow almost constantly.” It’s so accurate, Windy has become a major source of weather information for governments, institutions and individuals during scary times like hurricane season.
At what pressure does it rain?
If the reading falls between 29.80 and 30.20 inHg (100914.4–102268.9 Pa or 1022.689–1009.144 mb): Rising or steady pressure means present conditions will continue. Slowly falling pressure means little change in the weather. Rapidly falling pressure means that rain is likely, or snow if it is cold enough.
What is a comfortable barometric pressure?
Vanos said people are most comfortable with barometric pressure of 30 inches of mercury (inHg). When it rises to 30.3 inHg or higher, or drops to 29.7 or lower, the risk of heart attack increases.
What are the color codes for weather?
Is there a list of all the warnings and watches and the color codes?
| Hazard / Weather Event Click on the Hazard/Weather Event For Definitions | Priority | Color Name |
|---|---|---|
| Tornado Warning | 2 | Red |
| Extreme Wind Warning | 3 | Darkorange |
| Severe Thunderstorm Warning | 4 | Orange |
| Flash Flood Warning | 5 | Darkred |
What color is a tornado on a radar?
This often appears as a red area directly next to a green area as seen on the National Weather Service image below. If the radar shows a strong area of rotation and a debris ball in the same area, it is a strong signature that there is a tornado occurring.
What are the 4 types of weather maps?
Five Different Types of Weather Maps
- Pressure Maps. Pressure maps are measured in millibars, and tell the reader where there is high atmospheric pressure, as compared to average sea-level pressure, and where there is low atmospheric pressure.
- Station Model Maps.
- Aviation Maps.
- Temperature Maps.
- Streamline Maps.
Do close isobars mean high pressure?
Because variations in air pressure drive atmospheric winds, isobars give meteorologists an easy way to assess wind direction and speed. Closely spaced isobars indicate large pressure changes over a small area and suggest strong winds.
Why is AccuWeather different from weather com?
While accuweather.com focuses heavily on mobile web traffic and optimization of that traffic through search, weather.com reaches many more people with its mobile app and gets its mobile web traffic from referrals rather than search engine optimization.
Which weather website is most accurate?
AccuWeather is Most Accurate Source of Weather Forecasts and Warnings in the World, Recognized in New Proof of Performance Results.
What is the most reliable weather model?
Types of Weather Models
The ECMWF is generally considered the most accurate, just slightly so, than the American system. However, they do provide access to weather predictions worldwide. The most accurate model, on average, is the European model.
Is ECMWF better than GFS?
Statistically speaking, the very clear answer is that the ECMWF consistently performs better than the GFS, as the model skill score graph above shows.
What barometric pressure causes joint pain?
Changes in Barometric Pressure
Low barometric pressure may irritate sensitive nerves and cause tissues in your body to swell. It makes your muscles, tendons, and any scar tissue contract and expand, creating pain in the joints.
What barometric pressure level causes headaches?
We found that migraine often developed shortly before the appearance of cyclones. Specifically, we found that the range from 1003 to <1007 hPa, i.e., 6–10 hPa below standard atmospheric pressure, was most likely to induce migraine.
What state has the most stable barometric pressure?
Biggest and Smallest Ranges
Honolulu, Hawaii is the place in the US with the overall smallest range of changes in barometric pressure, ranging from 29.34 to 30.32 inHg (993.56 to 1026.75 hPa).
What barometric pressure causes headaches?
What are the five weather symbols?
List of weather symbols sun, rain, snow, storm, cloud, fog, lightning.
Is orange warning worse than yellow?
Expected weather conditions in a status yellow alert do not pose an immediate risk to the general population.” “A status orange weather warning is given before expected weather conditions that could significantly impact people, property and activity in an area.