Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 10, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 10, 1989, 10:35 AM EDT for Franklin County, Hampshire County, Massachusetts. It was in force for 65 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 10, 1989, 10:35 AM EDT (14:35 UTC)
- Expired
- Jul 10, 1989, 11:40 AM EDT
- In force
- 65 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
Counties Franklin County, MA, Hampshire County, MA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 10, 11:00 AM EDT | Thunderstorm Wind 50 | Franklin, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Albany, NY (KALB), launched 12:00Z, 2.6 hours before the alert went out and 102 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
- 111 J/kg
- Mixed-layer CIN
- -212 J/kg
- Mixed-layer LCL
- 1032 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jul 10, 10:31 AM EDT, 4 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 10, 11:25 AM EDT | Severe Thunderstorm Warning | BOX | Hampden | 65 min |
| Jul 10, 11:35 AM EDT | Severe Thunderstorm Warning | BOX | Worcester | 35 min |
| Jul 10, 3:30 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 60 min |
| Jul 10, 4:30 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Norfolk, Suffolk | 60 min |
| Jul 10, 6:21 PM EDT | Severe Thunderstorm Warning | BOX | Essex | 69 min |
| Jul 10, 4:11 PM EDT | Severe Thunderstorm Warning | BOX | Northwest Hills Planning Region | 64 min |
| Jul 10, 5:16 PM EDT | Severe Thunderstorm Warning | BOX | Northwest Hills Planning Region | 44 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 1989Every severe thunderstorm warning in 1989
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.