Alert archive / Massachusetts / Heat Advisories in 2022
Heat Advisory 4, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this heat advisory at Jul 25, 2022, 3:55 AM EDT for Essex County, Norfolk County, Plymouth County, Massachusetts. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Jul 25, 2022, 3:55 AM EDT (07:55 UTC)
- Expired
- Jul 25, 2022, 3:32 PM EDT
- In force
- 12 hr
- Issued by
- NWS Boston/Norton, MA
Counties Essex County, MA, Norfolk County, MA, Plymouth County, MA
The radar
The Boston radar (KBOX), 38 km from the middle of the area, began a volume at 07:58 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Gray, ME (KGYX), launched 00:00Z, 7.9 hours before the alert went out and 189 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 97 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 2209 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 244 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
What forecasters said that day
The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Boston/Norton, MA wrote its last area forecast discussion before this heat advisory went out at Jul 25, 1:53 AM EDT, 2 hours 2 minutes earlier.
Area forecast discussion, Jul 25, 1:53 AM EDT, 2 hours 2 minutes before
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</html>Hazardous weather outlook, Jul 24, 5:16 PM EDT, 10 hours 39 minutes before
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Local storm report, Jul 24, 10:43 PM EDT, 5 hours 12 minutes before
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</html>The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 8:07 PM EDT | Special Weather Statement | BOX | Franklin | 53 min |
| Jul 24, 9:02 PM EDT | Special Weather Statement | BOX | Worcester | 43 min |
| Jul 25, 4:03 AM EDT | Small Craft Advisory | BOX | 19 hr | |
| Jul 25, 7:50 AM EDT | Special Weather Statement | BOX | Franklin | 40 min |
| Jul 25, 10:33 AM EDT | Special Weather Statement | BOX | Franklin | 42 min |
| Jul 25, 11:04 AM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 16 min |
| Jul 25, 1:31 PM EDT | Special Weather Statement | BOX | Worcester | 44 min |
| Jul 25, 1:50 PM EDT | Special Weather Statement | BOX | Middlesex | 40 min |
| Jul 25, 3:14 PM EDT | Special Weather Statement | BOX | Franklin | 46 min |
| Jul 25, 3:52 PM EDT | Special Weather Statement | BOX | Franklin | 38 min |
| Jul 25, 4:20 PM EDT | Special Weather Statement | BOX | Franklin | 40 min |
| Jul 25, 5:48 PM EDT | Special Weather Statement | BOX | Hampden | 42 min |
| Jul 25, 6:40 PM EDT | Special Weather Statement | BOX | Providence | 50 min |
| Jul 24, 8:54 PM EDT | Special Weather Statement | BOX | 51 min | |
| Jul 25, 6:52 PM EDT | Special Weather Statement | BOX | 38 min | |
| Jul 25, 7:19 PM EDT | Special Weather Statement | BOX | 41 min | |
| Jul 25, 7:50 PM EDT | Special Weather Statement | BOX | 40 min |
Nearby
Heat Advisories in Massachusetts, 2022Every heat advisory in 2022
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.