Our Proprietary 10-Day Forecast

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Current warnings over Hillandale, Maryland
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<p>Warnings from F5Weather</a></div>

United States weather warnings are issued by various organizations under NOAA. Most from the National Weather Service, but also Storm Prediction Center and National Hurricane Center.

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Current radar over Hillandale, Maryland red dot
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<p>Live radar from F5Weather</a></div>

Our radar is based off of US NEXRAD and Canadian weather radar sites through the quality controlled MRMS system. It compiles various sources for radar data and filters out erroneous returns such as sun spikes and ground clutter. We then colorize the precipitation based on our methods for determining precipitation type. Rain is in shades of green, mixed precipitation and freezing rain in shades of pink and snow is in shades of blue.

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Current satellite over Hillandale, Maryland red dot
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<p>Live satellite from F5Weather</a></div>

Our satellite is from the GOES-16. It is color enhanced by using a geocolor terrain background during the day and black marble city lights at night. The daytime satellite data is Visible satellite imagery, and nighttime uses Infrared bands. The bluish clouds are fog and low cloud. The whiteest clouds are the coldest, highest cloud tops.

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Current surface weather map around Montgomery County, MD

This surface map is from the HRRR computer model. It is a 1-hour forecast, updated hourly, which is a good estimate of the current surface conditions. This map shows the current high and low pressure centers, pressure isobar contours, wind streamlines and thickness contours. It also shows the currently depicted preciptiation estimates, although this should not be a substitute for actual live radar. The purple dashed contour is the 5400m thickness line, which is often a good proxy for the rain/snow line.

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Temperatures right now near Hillandale, Maryland

This is the latest surface temperatures as depicted by the HRRR computer model, updated hourly. Although these are not actual observations, this model is a very good representation of current conditions as it factors in observations, terrain and physics to give you more detailed temperatures in areas that do not have reporting weather stations. For the latest reports at specific locations, like in Hillandale, MD please see our current conditions data on the left and right side of this page, or go to our current conditions page.

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Surface wind speed map over Hillandale, MD

This map shows the latest HRRR computer model winds. This depiction of the current wind directions and speeds is an estimate from the computer model. For actual observations in Hillandale, MD, see the current conditions data on the left and right side of this page, or go to our current conditions page.

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Regional 24 hour rainfall expected near Hillandale, Maryland

This is a forecast of the amount of precipitation expected over the next 24 hours from the HRRR weather forecast model. This is only one forecast depiction, and you should check other models to get a better idea of what may happen. You can view this and other models in more detail on our main weather forecast maps page. There, you will also be able to look at forecasts beyond just 24 hours and look at forecasts out to as far as 16 days.

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Area snowfall accumulation expected around Montgomery County, Maryland

This is snowfall forecast, with amounts anticipated in the next 24 hours. This guidance is from the HRRR weather model. For more model forecasts out to 16 days, visit our main weather forecast maps page.

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These are Convective Outlooks from the Storm Prediction Center. Click to see Days 1-3 broken down into Tornado, Wind and Hail threats, as well as days 5-8 outlooks.

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Atlantic Hurricane and Tropical Storm Tracking Map
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<p>Hurricane Tracking from F5Weather</a></div>

Our hurricane tracking map monitors for any current or forecast tropical disturbances in the Atlantic. (See our Pacific Hurricane Tracker) Various hurricane models will draw a 'spaghetti plot' in the Atlantic Basin when a disturbance is forecast or exists, showing the system's forecast track. Once a storm has developed, the National Hurricane Center will forecast their official track. This will show up on the map along with the storm's current intensity, track and name. We will also plot some of the storm's vitals and of course the spaghetti plots from the models along with the NHC forecast track will give you an idea of where it's heading, and its forecast intensity with time.

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To view the latest computer models, visit f5wx.com for access to the weather maps and guidance that meteorologists use to make their forecasts.
 
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  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
  • American HRRR
  • American NBM - National Blend of Models
  • GEFS, GEPS, MOGREPS & European Ensembles
  • Probabilities & Averages
  • 3-Ensemble Mean & more!
View Skew-T soundings, textual data tables for your location, and of course maps! Weather forecast maps of the basics like temperature, wind, pressure, humidity, dew point, cloud cover, simulated radar, travel weather, rainfall and snow are available. More advanced users can also get use out of our severe weather & tornado threat maps, as well as upper air & shear graphics.
 
See the latest forecast data as the models update.
 
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Climate Summary
(made with AI, use with caution)
Hillandale, Maryland Climate Summary

General Climate


    •   Hillandale, Maryland, experiences a humid subtropical climate, characterized by hot, humid summers and mild winters.
    •   The area is influenced by its proximity to the Atlantic Ocean, which helps moderate temperatures and brings frequent precipitation.

Temperature


    •   Average Annual Temperature: 57.2°F (14°C)
    •   Average Summer Temperature (June-August): 78.6°F (25.9°C)
    •   Average Winter Temperature (December-February): 36.6°F (2.6°C)
    •   Record High Temperature: 106°F (41.1°C)
    •   Record Low Temperature: -13°F (-25°C)

Precipitation


    •   Average Annual Precipitation: 44.1 inches (112 cm)
    •   Average Monthly Precipitation: 3.7 inches (9.4 cm)
    •   Heaviest Precipitation Month: August (5.1 inches / 13 cm)
    •   Driest Precipitation Month: February (2.6 inches / 6.6 cm)
    •   Snowfall: Average annual snowfall is 17.3 inches (44 cm).

Humidity


    •   Average Annual Relative Humidity: 70%
    •   Highest Average Monthly Relative Humidity: December (76%)
    •   Lowest Average Monthly Relative Humidity: June (64%)

Wind


    •   Prevailing Wind Direction: West-southwest
    •   Average Wind Speed: 9.3 mph (15 km/h)

Sunshine


    •   Average Annual Sunshine Hours: 2,664 hours
    •   Average Daily Sunshine Hours: 7.2 hours

Climate Extremes


    •   Hillandale has experienced extreme weather events, including heat waves, cold snaps, heavy rainfall, and occasional tornadoes.
    •   The area is also prone to coastal flooding due to its proximity to the Chesapeake Bay.

Climate Change Impact


    •   Climate change is expected to bring warmer temperatures, more frequent and intense heat waves, heavier precipitation events, and rising sea levels to Hillandale and the surrounding region.
    •   These changes may lead to increased risks of flooding, heat-related illnesses, and other climate-related challenges.

Overall, Hillandale's climate is characterized by warm summers, mild winters, abundant precipitation, and moderate humidity. The area's climate is influenced by its location on the Atlantic coastal plain and its proximity to the Chesapeake Bay.

Facts & Historical Information
(made with AI, use with caution)
Natural History and Science

    •   Hillandale is home to the Smithsonian Environmental Research Center (SERC), a world-renowned research institution studying environmental science and climate change.

    •   The SERC campus includes over 2,800 acres of forests, wetlands, and estuarine habitats, providing a valuable sanctuary for wildlife and scientific research.

    •   The Hillandale Natural Area, part of the SERC campus, is a 370-acre preserve featuring diverse plant and animal life, including rare species like the bald eagle and osprey.

Historical Personalities

    •   Dr. Charles G. Abbot, a renowned astrophysicist, lived in Hillandale from 1914 to 1930. He served as the director of the Smithsonian Astrophysical Observatory and made significant contributions to our understanding of the sun.

    •   Dr. James E. Webb, the second Administrator of NASA, resided in Hillandale from 1961 to 1968. He played a pivotal role in the Apollo program and the establishment of the International Space Station.

Tourist Attractions
1. National Mall and Memorial Parks: Located in Washington, D.C., just a short drive from Hillandale, MD, the National Mall is a sprawling park that is home to many of the city's most iconic landmarks, including the Lincoln Memorial, the Washington Monument, and the Smithsonian Museums.

2. Smithsonian National Air and Space Museum: Also located on the National Mall, the Smithsonian National Air and Space Museum is the world's largest and most comprehensive museum dedicated to aviation and space exploration. The museum houses a vast collection of aircraft, spacecraft, and artifacts, and offers a variety of interactive exhibits and educational programs.

3. Smithsonian National Museum of Natural History: Another Smithsonian museum located on the National Mall, the National Museum of Natural History is one of the world's largest and most respected natural history museums. The museum houses a vast collection of specimens from all over the world, and offers a variety of exhibits on topics such as dinosaurs, mammals, and human evolution.

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