Active Weather Alerts
Small Craft Advisory
Issued: 4:10 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. &&
Flood Warning
Issued: 3:26 AM Jul. 17, 2025 – National Weather Service
...FLOOD WARNING IN EFFECT UNTIL 230 AM EDT THURSDAY... ...REPLACES FLASH FLOOD WARNING... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northern Virginia, including the following counties, City of Manassas, City of Manassas Park, Fauquier and Prince William. * WHEN...Until 230 AM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Numerous roads remain closed due to flooding. Low-water crossings are inundated with water and may not be passable. * ADDITIONAL DETAILS... - At 1125 PM EDT, emergency management reported heavy rain in the warned area due to thunderstorms. Flooding is ongoing or expected to begin shortly. Between 2 and 4.5 inches of rain have fallen. - Additional rainfall amounts up to 0.5 inches are possible in the warned area. - Some locations that will experience flooding include... Warrenton... Linton Hall... Bull Run... Haymarket... Manassas... Sudley... Manassas Park... Gainesville... New Baltimore... Nokesville... Broken Hill... Broad Run... Greenwich... Auburn... Airlie... Woolsey... Meadowville... Catharpin... Turnbull... - 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. &&
Flood Warning
Issued: 3:24 AM Jul. 17, 2025 – National Weather Service
...FLOOD WARNING IN EFFECT UNTIL 230 AM EDT THURSDAY... ...REPLACES FLASH FLOOD WARNING... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northern Virginia, including the following counties, City of Manassas Park, Fairfax, Fauquier, Prince William and Stafford. * WHEN...Until 230 AM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 1124 PM EDT, local law enforcement reported heavy rain in the warned area due to thunderstorms. Flooding is ongoing or expected to begin shortly. Between 1.5 and 3.5 inches of rain have fallen. - Additional rainfall amounts up to 0.5 inches are possible in the warned area. - 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. &&
Heat Advisory
Issued: 2:47 AM Jul. 17, 2025 – National Weather Service
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... * WHAT...Heat index values around 105 expected. * WHERE...Washington DC, and portions of central, northern, and southern Maryland, and central and northern Virginia. * WHEN...From 11 AM to 8 PM EDT Thursday. * 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. &&
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