Active Weather Alerts
Heat Advisory
Issued: 12:40 PM Jul. 17, 2025 – National Weather Service
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Heat index values around 105 expected. * WHERE...Portions of DC, central, northeast, northern, and southern Maryland, and central and northern Virginia. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. 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. &&
Flood Warning
Issued: 12:10 PM Jul. 17, 2025 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL 230 PM EDT THIS AFTERNOON... * WHAT...Flooding caused by excessive rainfall continues. * WHERE...A portion of northern Virginia, including the following counties, City of Manassas Park, Fairfax, Fauquier, Prince William and Stafford. * WHEN...Until 230 PM EDT Thursday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is ongoing. Streams continue to rise due to excess runoff from earlier rainfall. * ADDITIONAL DETAILS... - At 807 AM EDT, Cedar Run at Catlett is in Moderate Flood Stage. Water is approaching a low spot on Flatwood Lane near Catlett. - Some locations that will experience flooding include... Dale City... Lake Ridge... Montclair... Bealeton... Manassas... Manassas Park... Independent Hill... Nokesville... Opal... Catlett... Calverton... Midland... Bristersburg... Aden... Somerville... Casanova... Lois... - Please visit www.weather.gov/safety/flood for flood safety and preparedness information PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. &&
Small Craft Advisory
Issued: 10:11 AM Jul. 17, 2025 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM EDT THIS EVENING... * WHAT...Southwest winds around 10 kt with gusts up to 20 kt expected. * WHERE...Tidal Potomac River from Key Bridge to Cobb Island MD, Chesapeake Bay north of Pooles Island MD, Patapsco River including Baltimore Harbor, Chester River to Queenstown MD, and Patuxent River to Broomes Island MD. * WHEN...From 10 AM this morning to 6 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
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