Alert archive / Massachusetts / Special Weather Statements in 2021
Special Weather Statement, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this special weather statement at Jun 9, 2021, 4:07 PM EDT for Hampden County, Massachusetts. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 9, 2021, 4:07 PM EDT (20:07 UTC)
- Expired
- Jun 9, 2021, 4:45 PM EDT
- In force
- 38 min
- Issued by
- NWS Boston/Norton, MA
County Hampden County, MA
The radar
The Boston radar (KBOX), 126 km from the middle of the area, began a volume at 20:09 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
Albany, NY (KALY), launched 12:00Z, 8.1 hours before the alert went out and 117 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
- 112 J/kg
- Mixed-layer CIN
- -131 J/kg
- Mixed-layer LCL
- 902 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
120 WWUS81 KBOX 092007 SPSBOX Special Weather Statement National Weather Service Boston/Norton MA 407 PM EDT Wed Jun 9 2021 CTZ002-MAZ011-092045- Hartford CT-Eastern Hampden MA- 407 PM EDT Wed Jun 9 2021 ...STRONG THUNDERSTORM... At 406 PM EDT, Doppler radar was tracking a strong thunderstorm over Agawam, moving south at 15 mph. Penny size hail and winds in excess of 40 mph will accompany this storm. Locations impacted include... Springfield, Chicopee, Enfield, Westfield, Holyoke, Agawam, West Springfield, Longmeadow, Suffield, East Longmeadow, Southwick and East Granby. PRECAUTIONARY/PREPAREDNESS ACTIONS... Get indoors when this storm approaches. Winds may be strong enough to produce minor damage, such as a few downed branches. && LAT...LON 4218 7274 4220 7254 4196 7251 4196 7275 TIME...MOT...LOC 2006Z 358DEG 12KT 4209 7261 $$ Frank
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 3:12 AM EDT | Heat Advisory | BOX | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 17 hr |
| Jun 9, 2:48 PM EDT | Special Weather Statement | BOX | Hampden | 42 min |
| Jun 9, 5:02 PM EDT | Special Weather Statement | BOX | Washington | 28 min |
| Jun 9, 3:11 PM EDT | Special Weather Statement | BOX | 49 min | |
| Jun 9, 3:23 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 67 min |
Nearby
Special Weather Statements in Massachusetts, 2021Every special weather statement in 2021
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.