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3 days ago · *Significant weather features are depicted as hatched areas and defined as the potential for: Severe Thunderstorms; Flash Flooding; Heavy Snowfall; Accumulating Freezing Rain
- Day 3 Forecast Monday Sep 20, 2021
Day 3 Forecast Monday Sep 20, 2021 - National Forecast...
- NDFD
NDFD - National Forecast Charts - Weather Prediction Center
- Days 3-7 Conus
Days 3-7 Conus - National Forecast Charts - Weather...
- QPF
QPF - National Forecast Charts - Weather Prediction Center
- Winter Weather
Specific (deterministic) snow accumulations for locations in...
- About The National Forecast Chart
WPC winter weather probabilistic forecasts showing at least...
- Excessive Rainfall
Daily Weather Map; Day ½–2½; Day 3–7 CONUS ... Winter...
- WPC Discussions
WPC Discussions - National Forecast Charts - Weather...
- Tropical Products
Tropical Products - National Forecast Charts - Weather...
- Surface Analysis
NOTE: Pacific Ocean analyses north of 30 o N and Atlantic...
- Day 3 Forecast Monday Sep 20, 2021
11 hours ago · The map above shows the typical snowfall forecast — at the center of possible estimates from the National Weather Service. For some storms, that estimate is highly predictive.
Apr 30, 2024 · See pictures of most common cloud types in the sky (classified by altitude and shape) and what weather clouds predict!
Apr 16, 2024 · Cold Fronts. The cold front is typically the most active. There is a noticeable wind shift and increase in wind speed as it passes, and both the temperature and humidity drop – sometimes quite significantly. It typically moves west to east over the US, replacing warmer, more humid air masses.
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Apr 26, 2024 · The stratospheric polar vortex is a seasonal phenomenon. It forms in late summer, when the polar region starts to lose incoming sunlight as Earth’s orbit causes the planet’s axis to be tilted away from the Sun. Its strength peaks in winter, during polar night.
Apr 15, 2024 · Winter, coldest season of the year, between autumn and spring; the name comes from an old Germanic word that means ‘time of water’ and refers to the rain and snow of winter in middle and high latitudes. The low temperatures associated with winter occur only in those latitudes.
Apr 30, 2024 · Winter in the Northern Hemisphere begins when the noontime Sun reaches its farthest point south in the sky or when the Sun’s rays shine down from a point directly overhead as seen from the tropic of Capricorn (latitude 23.5 degrees south), known as the winter solstice. This happens on December 21 (or December 22, depending on the year).