Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 67, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 10, 2001, 2:05 PM EDT for Norfolk County, Plymouth County, Massachusetts. It was in force for 25 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 10, 2001, 2:05 PM EDT (18:05 UTC)
- Expired
- Aug 10, 2001, 2:30 PM EDT
- In force
- 25 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
Counties Norfolk County, MA, Plymouth County, MA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 10, 2:05 PM EDT | Thunderstorm Wind 50 E | Walpole, MA | |
| Aug 10, 2:19 PM EDT | Thunderstorm Wind 50 E | Hingham, MA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 10, 12:45 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Chatham, MA (KCHH), launched 12:00Z, 6.1 hours before the alert went out and 94 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
- 1848 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 864 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
197 WUUS51 KBOX 101807 SVRBOX MAC021-023-101830- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 205 PM EDT FRI AUG 10 2001 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS NORTHERN PLYMOUTH COUNTY IN SOUTHEAST MASSACHUSETTS * UNTIL 230 PM EDT. * AT 203 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR QUINCY...MOVING EAST AT 25 MPH. THIS STORM DOWNED TREE LIMBS IN QUINCY AND PRODUCED A WIND GUST TO NEARLY 50 MPH AT THE BLUE HILL OBSERVATORY IN MILTON. * OTHER LOCATIONS IN THE WARNING AREA INCLUDE HINGHAM AND COHASSET. SEVERE THUNDERSTORMS PRODUCE LARGE HAIL AND/OR WIND STRONG ENOUGH TO KNOCK DOWN TREES AND POWER LINES. MOVE INDOORS AND STAY AWAY FROM WINDOWS. $$ JWD/MB
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 1:40 PM EDT | Severe Thunderstorm Warning | BOX | Essex, Middlesex | 50 min |
| Aug 10, 2:22 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Plymouth | 38 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.