Weather Alerts For Riderwood, MD

# HEADLINE -------------------- FLOOD WATCH IN EFFECT UNTIL 1 AM EDT MONDAY # SUMMARY -------------------- .A disturbance approaching from the west will intersect an increasingly humid airmass this evening. # DETAILS -------------------- WHAT Flash flooding caused by excessive rainfall is possible. WHERE Portions of central to northeast Maryland, including the following areas, Anne Arundel, Baltimore, Cecil, and Harford Counties including the City of Baltimore. WHEN Until 1 AM EDT Monday. IMPACTS Flooding may occur in poor drainage and urban areas. ADDITIONAL DETAILS - A developing area of showers and thunderstorms will move into an increasingly humid airmass this evening. This, combined with recent rainfall, may result in flooding particularly in urban areas. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information. ISSUED AT Sunday, July 5, 2026 at 2:08 PM EDT ISSUED BY National Weather Service Baltimore MD/Washington DC HEADER URGENT - IMMEDIATE BROADCAST REQUESTED | Flood Watch # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. # AREAS AFFECTED -------------------- Northwest Harford, Anne Arundel, Cecil, Northern Baltimore, Southeast Harford, Southern Baltimore

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING # DETAILS -------------------- WHAT Heat index values of 105 to 109. WHERE Washington DC, and portions of central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. WHEN Until 8 PM EDT this evening. IMPACTS Hot temperatures and high humidity may cause heat illnesses. ISSUED AT Sunday, July 5, 2026 at 9:45 AM EDT ISSUED BY National Weather Service Baltimore MD/Washington DC HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. # AREAS AFFECTED -------------------- Albemarle, Anne Arundel, Arlington/Falls Church/Alexandria, Calvert, Cecil, Central and Southeast Howard, Central and Southeast Montgomery, Central and Southeast Prince William/Manassas/Manassas Park, Charles, Culpeper, District of Columbia, Fairfax, Greene, King George, Madison, Orange, Prince Georges, Southeast Harford, Southern Baltimore, Southern Fauquier, Spotsylvania, St. Marys, Stafford

# HEADLINE -------------------- AIR QUALITY ALERT IS IN EFFECT FOR SUNDAY JULY 5 2026 # SUMMARY -------------------- The Maryland Department of the Environment has issued a Code ORANGE Air Quality Alert Sunday for the Baltimore City Metro and Annapolis region. A Code Orange Air Quality Alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children, people suffering from asthma, heart disease or other lung diseases and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles visit the web site mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx # DETAILS -------------------- ISSUED AT Saturday, July 4, 2026 at 4:40 PM EDT ISSUED BY Relayed by National Weather Service Baltimore MD/Washington DC HEADER Air Quality Alert Message | MD Dept of Environment and VA Dept of Environmental Quality # AREAS AFFECTED -------------------- Anne Arundel, Southern Baltimore

There is a Slight Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR PARTS OF THE MID ATLANTIC...NORTHERN NORTH DAKOTA...AND WESTERN INTO NORTHERN TEXAS SUMMARY Scattered wind damage remains possible with thunderstorms across the Mid-Atlantic through the remainder of the afternoon and evening. Large hail and damaging gusts may still occur with thunderstorms in North Dakota and west/northwest Texas. 20Z Update The previous forecast (see below) remains generally on track. A mesovortex embedded within a multicellular complex developed a few hours ago and produced a localized swath of intense winds along the OH/PA border. A repeat of such activity cannot be ruled out across western into central PA given the presence of a broad baroclinic boundary for ongoing storms to traverse. However, confidence in the development of another mesovortex is too low for an appreciable modification of severe probabilities at this time.