Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 64, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 18, 2000, 4:13 PM EDT for Norfolk County, Massachusetts. It was in force for 32 min. 1 report 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
- Jul 18, 2000, 4:13 PM EDT (20:13 UTC)
- Expired
- Jul 18, 2000, 4:45 PM EDT
- In force
- 32 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
County Norfolk County, MA
The radar
The Boston radar (KBOX), 24 km from the middle of the area, began a volume at 20:10 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 18, 4:37 PM EDT | Thunderstorm Wind 55 E | Milton, 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 nearest sounding before it
Chatham, MA (KCHH), launched 12:00Z, 8.2 hours before the alert went out and 115 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
- 118 J/kg
- Mixed-layer CIN
- -63 J/kg
- Mixed-layer LCL
- 566 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KBOX 182015
SVRBOS
MAC021-182045-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
413 PM EDT TUE JUL 18 2000
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS
INCLUDING WEYMOUTH
* UNTIL 445 PM EDT.
* AT 410 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM NORTHEAST OF NORWOOD...MOVING EAST AT 15 MPH.
* OTHER TOWNS IN THE PATH OF THIS STORM INCLUDE WEYMOUTH...BRAINTREE
AND RANDOPLH.
SEVERE THUNDERSTORMS PRODUCE LARGE HAIL AND/OR WIND STRONG ENOUGH TO
KNOCK DOWN TREES AND POWER LINES. MOVE IN)DOORS AND STAY AWAY FROM
WINDOWS.
$$The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 12:24 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 36 min |
| Jul 18, 1:43 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex | 47 min |
| Jul 18, 2:29 PM EDT | Severe Thunderstorm Warning | BOX | Essex, Middlesex | 46 min |
| Jul 18, 3:13 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex | 32 min |
| Jul 18, 3:18 PM EDT | Severe Thunderstorm Warning | BOX | Essex | 17 min |
| Jul 18, 3:22 PM EDT | Severe Thunderstorm Warning | BOX | Suffolk | 23 min |
| Jul 18, 3:31 PM EDT | Severe Thunderstorm Warning | BOX | Norfolk | 44 min |
| Jul 18, 3:44 PM EDT | Severe Thunderstorm Warning | BOX | Suffolk | 31 min |
| Jul 18, 4:00 PM EDT | Severe Thunderstorm Warning | BOX | Plymouth | 30 min |
| Jul 18, 4:39 PM EDT | Severe Thunderstorm Warning | BOX | Plymouth | 21 min |
| Jul 18, 4:53 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 27 min |
| Jul 18, 5:01 PM EDT | Severe Thunderstorm Warning | BOX | Plymouth | 19 min |
| Jul 18, 5:32 PM EDT | Severe Thunderstorm Warning | BOX | Norfolk | 28 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2000Every severe thunderstorm warning in 2000
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; radar from the NEXRAD Level II archive.