Severe Weather & Heat Coordination Message #3 – Saturday 8/14/21 Severe Weather & Heat Potential
Hello to all…
..Intense Heat and Humidity will come to an end Saturday Evening. With the intense heat and humidity, it will bring with it the potential for isolated to scattered strong to severe thunderstorms for Saturday Afternoon and Evening with strong to damaging winds, hail, frequent lightning and heavy downpours leading to urban and poor drainage flooding as the main threats..
..Thursday brought a fairly significant swath of severe weather to Western and Central Massachusetts, Northern Connecticut and Northwest Rhode Island. The potential for Saturday is a bit less than Thursday but still will need monitoring..
..The Storm Prediction Center (SPC) has placed Central and Eastern Connecticut, Rhode Island and Central and Eastern Massachusetts in a marignal risk for severe weather for Saturday Afternoon and Evening. Timeframe is from around 12-8 PM today for severe weather potential.
..Heat and humidity will be lower than the Wednesday to Friday time period but heat indices will approach 95 degrees around the I-95 corridor. Use caution if outside and needing to physically exert yourself. Drink plenty of liquids, take frequent breaks and seek cooler indoor locations wherever possible..
..SKYWARN Self-Activation will monitor the severe weather potential for Saturday Afternoon and Evening and we are monitoring for any post storm damage reports, pictures and videos from Thursday’s severe weather event and that can be sent as a reply to this email via the WX1BOX Facebook and Twitter feeds and via the email address pics@nsradio.org..
The heat will be a bit less on Saturday than the Wednesday through Friday and will be below heat advisory thresholds. That said, heat indices will approach 95 degress around the I-95 corridor so use caution if outside, drink plenty of liquids and say cool today.
Thursday Afternoon and Evening brought a fairly significant swath of severe weather to Western and Central Massachusetts, Northern Connecticut and Northwest Rhode Island. We continue to look for post severe weather damage reports, pictures and videos any post storm damage reports, pictures and videos from Thursday’s severe weather event and that can be sent as a reply to this email via the WX1BOX Facebook and Twitter feeds and via the email address pics@nsradio.org. The NWS Boston/Norton Local Storm Report for Thursday and the Amateur Radio log from severe weather Thursday can be seen at the following links:
NWS Boston/Norton Local Storm Report:
https://kamala.cod.edu/offs/KBOX/2108122333.nwus51.html
WX1BOX Amateur Radio Report Log:
https://wx1box.org/wp-content/uploads/2021/08/reports_8_12_21.pdf
Saturday will be the last day of heat and humidity in Southern New England as a strong cold front will sweep through the area this Saturday Afternoon and Evening. The strong cold front coupled with heat and humidity will set the stage for isolated to scattered strong to severe thunderstorms across Central and Eastern New England. The headlines depict the current thinking. Key factors include:
1.) Whether activity in Southwest Connecticut will develop and produce strong to severe thunderstorms in the marginal risk area even though the timing would be a bit earlier in the day for central and eastern New England.
2.) Whether additional activity forms after the initial showers and thunderstorms from Southwest Connecticut sweeps through central and eastern New England and whether it can become strong to severe as cloud cover may reduce heating after the initial activity in Southwest Connecticut moves through the area.
3.) Instability will be present but not as strong as prior days. Wind shear, however, will be a bit stronger though the strongest wind shear will be behind the cold front so the key factor here is whether there will be enough overlap between wind shear and instability to allow for isolated to scattered strong to severe thunderstorm development.
SKYWARN Self-Activation will monitor the severe weather potential for Saturday Afternoon and Evening. Below is the NWS Boston/Norton Area Forecast Discussion, Enhanced Hazardous Weather Outlook and SPC-Day-1 Convective Outlook:
NWS Boston/Norton Area Forecast Discussion:
https://kamala.cod.edu/ma/latest.fxus61.KBOX.html
NWS Boston/Norton Enhanced Hazardous Weather Outlook:
https://www.weather.gov/box/ehwo
SPC Day-1 Convective Outlook:
https://www.spc.noaa.gov/products/outlook/day1otlk.html
Respectfully Submitted,
Robert Macedo (KD1CY)
ARES SKYWARN Coordinator
Eastern Massachusetts ARES Section Emergency Coordinator
Home Phone #: (508) 994-1875 (After 6 PM)
Home/Data #: (508) 997-4503 (After 6 PM)
Work Phone #: 508-346-2929 (8 AM-5 PM)
Email Address: rmacedo@rcn.com
http://ares.ema.arrl.org
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