{"url_path":"/weather/alerts/2.49.0.1.840.0.e2d15a896f4dfb006c582eddaaec4cb43e32dfbf.002.4","section_key":"alert","section_title":"Heat Advisory issued July 1 at 1:32PM EDT until July 1 at 8:00PM EDT by NWS Baltimore MD/Washington DC","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-07-01","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.e2d15a896f4dfb006c582eddaaec4cb43e32dfbf.002.4","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Baltimore MD/Washington DC"},"word_count":343,"has_tables":false,"body_markdown":"# Heat Advisory: Heat Advisory issued July 1 at 1:32PM EDT until July 1 at 8:00PM EDT by NWS Baltimore MD/Washington DC\n\n**Severity:** Moderate\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** District of Columbia; Frederick; Carroll; Northern Baltimore; Cecil; Southern Baltimore; Prince Georges; Anne Arundel; Charles; St. Marys; Calvert; Northwest Montgomery; Central and Southeast Montgomery; Northwest Howard; Central and Southeast Howard; Northwest Harford; Southeast Harford; Albemarle; Greene; Madison; Rappahannock; Orange; Culpeper; Fairfax; Arlington/Falls Church/Alexandria; Stafford; Spotsylvania; King George; Northern Fauquier; Southern Fauquier; Western Loudoun; Eastern Loudoun; Northwest Prince William; Central and Southeast Prince William/Manassas/Manassas Park\n**Issued by:** NWS Baltimore MD/Washington DC\n**Sent:** 2026-07-01T13:32:00-04:00\n**Effective:** 2026-07-01T13:32:00-04:00\n**Expires:** 2026-07-01T23:00:00-04:00\n\n## Description\n* WHAT...For the Heat Advisory, heat index values up to 107. For the\nfirst Extreme Heat Warning, dangerously hot conditions with heat\nindex values up to 111 expected. For the second Extreme Heat\nWarning, dangerously hot conditions with heat index values up to\n112 expected.\n\n* WHERE...Portions of DC, central, north central, northeast,\nnorthern, and southern Maryland, and central, northern, and\nnorthwest Virginia.\n\n* WHEN...For the Heat Advisory, until 8 PM EDT this evening. For the\nfirst Extreme Heat Warning, from 10 AM to 8 PM EDT Thursday. For\nthe second Extreme Heat Warning, from 10 AM to 8 PM EDT Friday.\n\n* IMPACTS...Heat related illnesses increase significantly during\nextreme heat and high humidity events. Hot temperatures and high\nhumidity may cause heat illnesses.\n\n## Instructions\nDrink plenty of fluids, stay in an air-conditioned room, stay out of\nthe sun, and check up on relatives and neighbors.\n\nDo not leave young children and pets in unattended vehicles. Car\ninteriors will reach lethal temperatures in a matter of minutes.\n\nTake extra precautions when outside. Wear lightweight and loose\nfitting clothing. Try to limit strenuous activities to early morning\nor evening. Take action when you see symptoms of heat exhaustion and\nheat stroke.\n\nTo reduce risk during outdoor work, the Occupational Safety and\nHealth Administration recommends scheduling frequent rest breaks in\nshaded or air conditioned environments. Anyone overcome by heat\nshould be moved to a cool and shaded location. Heat stroke is an\nemergency! Call 9 1 1."}