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Heat AdvisoryModerateDistrict of Columbia; Cecil; Southern Baltimore; Prince Georges; Anne Arundel; Charles; St. Marys; Calvert; Southeast Harford; Fairfax; Arlington/Falls Church/Alexandria; Stafford; King George; Central and Southeast Prince William/Manassas/Manassas Park* 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. 2025-07-17T16:45:00-04:00

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Heat AdvisoryModerateDorchester; Wicomico; Somerset; Inland Worcester; Maryland Beaches; Caroline; Westmoreland; Richmond; Northumberland; Lancaster; Prince George; Charles City; New Kent; Gloucester; Middlesex; Mathews; Sussex; Surry; James City; Southampton; Isle of Wight; Norfolk/Portsmouth; Suffolk; Chesapeake; Virginia Beach; Accomack; Northampton; Western Hanover; Eastern Hanover; Western Chesterfield; Eastern Chesterfield (Including Col. Heights); Western Henrico (Including the City of Richmond); Eastern Henrico; Western King William; Eastern King William; Western King and Queen; Eastern King and Queen; Western Essex; Eastern Essex; York; Newport News; Hampton/Poquoson* WHAT...Heat index values of 105 to 109 degrees expected. * WHERE...Portions of southeast Maryland and central, east central, eastern, north central, south central, and southeast Virginia. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. 2025-07-17T20:00:00-04:00

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Flood WarningSeverePrince William, VA; City of Manassas, VA* WHAT...Small stream flooding is occurring along Broad Run in Bristow and along Nokesville Road. * WHERE...A portion of northern Virginia, including the following county, City of Manassas and Prince William. * WHEN...Until 500 PM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 1058 AM EDT, Gauge and emergency managers reports indicate flooding is still occurring along the Broad Run in Bristow and on Nokesville Road. - Some locations that will experience flooding include... Linton Hall... Manassas... - Please visit www.weather.gov/safety/flood for flood safety and preparedness information 2025-07-17T17:00:00-04:00

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Flood WarningSevereFairfax, VA; Fauquier, VA; Prince William, VA; Stafford, VA; City of Manassas Park, VA* 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 2025-07-17T14:30:00-04:00

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Heat AdvisoryModerateFrederick; Carroll; Northern Baltimore; Northwest Montgomery; Central and Southeast Montgomery; Northwest Howard; Central and Southeast Howard; Northwest Harford; Northern Fauquier; Southern Fauquier; Western Loudoun; Eastern Loudoun; Northwest Prince William* WHAT...Heat index values around 105 expected. * WHERE...Portions of central, north central, and northern Maryland and northern Virginia. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. 2025-07-17T16:45:00-04:00

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Heat AdvisoryModerateDorchester; Wicomico; Somerset; Inland Worcester; Maryland Beaches; Caroline; Westmoreland; Richmond; Northumberland; Lancaster; Prince George; Charles City; New Kent; Gloucester; Middlesex; Mathews; Sussex; Surry; James City; Southampton; Isle of Wight; Norfolk/Portsmouth; Suffolk; Chesapeake; Virginia Beach; Accomack; Northampton; Western Hanover; Eastern Hanover; Western Chesterfield; Eastern Chesterfield (Including Col. Heights); Western Henrico (Including the City of Richmond); Eastern Henrico; Western King William; Eastern King William; Western King and Queen; Eastern King and Queen; Western Essex; Eastern Essex; York; Newport News; Hampton/Poquoson* WHAT...Heat index values of 105 to 109 degrees expected. * WHERE...Portions of southeast Maryland and central, east central, eastern, north central, south central, and southeast Virginia. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. 2025-07-17T20:00:00-04:00