Weather Alerts For Nantucket, MA

# HEADLINE -------------------- COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY # SUMMARY -------------------- Nantucket Harbor MLLW Categories - Minor 5.0 ft, Moderate 6.5 ft, Major 8.0 ft MHHW Categories - Minor 1.4 ft, Moderate 2.9 ft, Major 4.4 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 15/12 AM 4.7/ 5.2 1.1/ 1.6 0.4/ 0.9 3 None 15/01 PM 3.2/ 3.7 -0.3/ 0.2 0.4/ 0.9 2-3 None 16/01 AM 4.7/ 5.2 1.2/ 1.7 0.4/ 0.9 3 Minor 16/02 PM 3.4/ 3.9 -0.2/ 0.2 0.4/ 0.9 2 None 17/02 AM 4.7/ 5.2 1.1/ 1.6 0.4/ 0.9 2 None # DETAILS -------------------- WHAT Up to one half foot of inundation above ground level in low-lying areas near shorelines and tidal waterways (4.9 to 5.1 feet Mean Lower Low Water). WHERE Nantucket MA County. WHEN Until 2 AM EDT Tuesday. The high tide cycles tonight and Monday night are of the most concern. IMPACTS Roads remain passable. Low lying areas and roads near Nantucket Harbor, including Easy Street, may experience pockets of shallow flooding less than one foot deep. ISSUED AT Sunday, June 14, 2026 at 1:24 PM EDT ISSUED BY National Weather Service Boston/Norton MA HEADER Coastal Hazard Message # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. # AREAS AFFECTED -------------------- Nantucket MA

Pollen Index: 9.1 Pollen Level: medium-high Predominant Pollen: Oak and Grass. Based on past pollen counts and expected weather conditions, pollen levels for Monday will be falling in the moderate range. This forecast of lower pollen concentration is based on falling temperatures and expected precipitation in the morning and evening which tends to wash pollen out of the air. This reduction in pollen levels should be a relief to allergy sufferers.