EMERGENCY PLANNING > REPC Alerts and Hazards > August 12, 2021 | Forecast of Oppressive Heat in Barnstable County 8/11 – 8/13

August 12, 2021 | Forecast of Oppressive Heat in Barnstable County 8/11 – 8/13

Published on: August 12, 2021

The National Weather Service (NWS) is forecasting a period of prolonged oppressive heat, Wednesday (8/11) to Friday (8/13) throughout most of the Commonwealth. During this three-day period, daytime temperature highs will be up to 95 degrees today and 95-99 degrees Thursday and Friday. Heat index (Apparent Temperature) values will be up to 105-109 Today (8/12) and Friday.

Western Massachusetts has a slight risk for scattered strong to severe thunderstorms tonight between 5 PM and 11 PM. There is a marginal risk for isolated strong to severe storms tonight and Friday afternoon/evening for Central and Eastern Massachusetts. There is a low probability that the heat wave could continue through Saturday.

Impacts | Potential Impacts

Very hot temperatures with high humidity. Little relief at night especially in urban population centers.
Potential of heat related issues to at risk population and those doing higher levels of outdoor physical activities.
Damaging straight line winds and localized street flooding are possible on Thursday in areas where severe thunderstorms occur.

Weather Forecast Overview

Advisories, Watches and Warnings

Air Quality Alert Issued: August 12 at 7:38AM EDT	Urgency: Unknown Status: Actual
Areas affected: Barnstable; Central Middlesex County; Dukes; Eastern Essex; Eastern Hampden; Eastern Norfolk; Eastern Plymouth; Northern Bristol; Southeast Middlesex; Southern Bristol; Southern Plymouth; Southern Worcester; Suffolk; Western Norfolk; Western Plymouth; Eastern Hampshire

Excessive Heat Warning Issued: August 12 at 6:42AM EDT Expiring: August 12 at 8:00PM EDT	Urgency: Expected Status: Actual
Areas affected: Central Middlesex County; Eastern Essex; Eastern Franklin; Eastern Hampden; Eastern Hampshire; Eastern Norfolk; Eastern Plymouth; Northern Bristol; Northern Worcester; Northwest Middlesex County; Southeast Middlesex; Southern Worcester; Suffolk; Western Essex; Western Norfolk; Western Plymouth

Heat Advisory Issued: August 12 at 6:42AM EDT Expiring: August 12 at 8:00PM EDT	Urgency: Expected Status: Actual
Areas affected: Western Franklin; Western Hampden; Western Hampshire; Southern Bristol; Southern Plymouth

Excessive Heat Watch Issued: August 12 at 6:42AM EDT Expiring: August 13 at 8:00PM EDT	Urgency: Future Status: Actual
Areas affected: Central Middlesex County; Eastern Essex; Eastern Franklin; Eastern Hampden; Eastern Hampshire; Eastern Norfolk; Eastern Plymouth; Northern Bristol; Northern Worcester; Northwest Middlesex County; Southeast Middlesex; Southern Worcester; Suffolk; Western Essex; Western Norfolk; Western Plymouth; Western Franklin; Western Hampden; Western Hampshire

Heat Advisory Issued: August 12 at 4:03AM EDT Expiring: August 12 at 8:00PM EDT	Urgency: Expected Status: Actual
Areas affected: Northern Berkshire; Southern Berkshire

An up-to-date list of watches, warnings, and advisories in effect for Massachusetts is available at: https://alerts.weather.gov/cap/ma.php?x=1 .

MEMA Operations

The State Emergency Operations Center (SEOC) is operating at Level 1 (Steady State Monitoring). MEMA will continue to monitor the situation and will disseminate additional Situational Awareness Statements, as necessary.

Preparedness and Safety Information

Safety and preparedness tips for extreme heat: www.mass.gov/mema/heat
- Never leave children or pets alone in a closed vehicle. Even with the windows cracked open, interior temperatures can rise almost 20°F within 10 minutes.
- Check with your local officials to find locations of cooling centers near you.
- Know the symptoms of and watch out for heat-related illnesses like heat cramps, heat exhaustion, and heat stroke. Call 9-1-1 to report emergencies.
- Be a good neighbor. Check on family, friends, and neighbors, especially the elderly, those who live alone, those with medical conditions, those who may need additional assistance, and those who may not have air conditioning.
Power outage preparedness and safety information:
https://www.mass.gov/info-details/power-outage-safety-tips
Preparedness and safety tips for thunderstorms and lightning:
https://www.mass.gov/info-details/thunderstorm-and-lightning-safety-tips
Flood safety tips:
https://www.mass.gov/info-details/flood-safety-tips

Stay Informed

For additional information and updated forecasts, see www.weather.gov/boston (National Weather Service Norton) and www.weather.gov/albany (National Weather Service Albany)

Utilize MEMA’s real-time power outage viewer to stay informed about current power outages in your community and region, and across the state, including information from utility companies about restoration times: http://mema.mapsonline.net/public.html

Online Resources

Massachusetts Emergency Management Agency www.mass.gov/mema
MEMA’s Facebook page http://www.facebook.com/MassachusettsEMA
MEMA Twitter @MassEMA
Federal Emergency Management Agency www.fema.gov
National Weather Service Boston/ Norton, MA  www.weather.gov/boston
National Weather Service/Albany, NY www.weather.gov/albany
National Weather Service Weather Prediction Center www.wpc.ncep.noaa.gov

National Weather Service Storm Prediction Center  www.spc.noaa.gov
Northeast River Forecast Center www.weather.gov/nerfc/

National Hurricane Center www.nhc.noaa.gov

Mass211 www.mass211.org

	Report produced by:	Shane Snyder-Hawke
	24/7 MEMA Dispatch phone:	(508) 820-2000

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