{"url_path":"/weather/alerts/2.49.0.1.840.0.183fa9ef25ef91a17de66d451ae8a74af2bf675a.003.1","section_key":"alert","section_title":"Heat Advisory issued May 18 at 2:10PM EDT until May 19 at 8:00PM EDT by NWS Mount Holly NJ","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-05-18","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.183fa9ef25ef91a17de66d451ae8a74af2bf675a.003.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Mount Holly NJ"},"word_count":189,"has_tables":false,"body_markdown":"# Heat Advisory: Heat Advisory issued May 18 at 2:10PM EDT until May 19 at 8:00PM EDT by NWS Mount Holly NJ\n\n**Severity:** Moderate\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** Warren; Morris; Hunterdon; Somerset; Berks; Lehigh; Northampton; Western Chester; Western Montgomery; Upper Bucks\n**Issued by:** NWS Mount Holly NJ\n**Sent:** 2026-05-18T14:10:00-04:00\n**Effective:** 2026-05-18T14:10:00-04:00\n**Expires:** 2026-05-19T05:00:00-04:00\n\n## Description\n* WHAT...Heat index values up to 97 expected.\n\n* WHERE...In New Jersey, Morris, Somerset, Warren, and Hunterdon\nCounties. In Pennsylvania, Berks, Lehigh, Northampton, Upper\nBucks, Western Chester, and Western Montgomery Counties.\n\n* WHEN...Until 8 PM EDT Tuesday.\n\n* IMPACTS...Hot temperatures and high humidity may cause heat\nillnesses.\n\n* ADDITIONAL DETAILS...Record setting high temperatures are quite\npossible through Tuesday, with maximum heat indices of 95 to near\n100 degrees during peak heating through Tuesday afternoon. Given\nthe intensity of this early season stretch of heat and humidity,\nwe are not acclimated to it yet and therefore impacts could be\ngreater if precautions are not taken. Showers and some\nthunderstorms arrive Wednesday afternoon and evening which will\nbreak this early season heat.\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."}