Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 101, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 15, 2007, 1:56 PM EDT for Franklin County, Hampshire County, Worcester County, Massachusetts. It was in force for 49 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 15, 2007, 1:56 PM EDT (17:56 UTC)
- Expired
- Jul 15, 2007, 2:45 PM EDT
- In force
- 49 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Counties, with a storm outline in the text
Counties Franklin County, MA, Hampshire County, MA, Worcester County, MA
The radar
The Boston radar (KBOX), 105 km from the middle of the area, began a volume at 17:57 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 15, 2:10 PM EDT | TSTM WND DMG | Pelham, MA | SEVERAL TREES DOWN NEAR ROUTE 202. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 15, 12:01 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 5.9 hours before the alert went out and 135 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
- 215 J/kg
- Mixed-layer CIN
- -117 J/kg
- Mixed-layer LCL
- 1182 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 170 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 151756 SVRBOX MAC011-015-027-151845- /O.NEW.KBOX.SV.W.0101.070715T1756Z-070715T1845Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 156 PM EDT SUN JUL 15 2007 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WEST CENTRAL WORCESTER COUNTY IN CENTRAL MASSACHUSETTS... SOUTHEASTERN FRANKLIN COUNTY IN WESTERN MASSACHUSETTS... EAST CENTRAL HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS... THIS INCLUDES THE CITY OF AMHERST... * UNTIL 245 PM EDT * AT 153 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR AMHERST...AND MOVING NORTHEAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... PELHAM BY 205 PM EDT... PETERSHAM AND BARRE BY 225 PM EDT... PHILLIPSTON BY 230 PM EDT... HUBBARDSTON AND TEMPLETON BY 235 PM EDT... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...DANGEROUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY EVENING FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE AND CENTRAL RHODE ISLAND. LAT...LON 4263 7205 4242 7192 4227 7250 4237 7256 $$ WTB
1 follow-up statement
000 WWUS51 KBOX 151827 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 226 PM EDT SUN JUL 15 2007 MAC011-015-027-151845- /O.CON.KBOX.SV.W.0101.000000T0000Z-070715T1845Z/ WORCESTER MA-FRANKLIN MA-HAMPSHIRE MA- 226 PM EDT SUN JUL 15 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EDT FOR WEST CENTRAL WORCESTER COUNTY...BUT IS CANCELLED FOR SOUTHEASTERN FRANKLIN AND EAST CENTRAL HAMPSHIRE COUNTIES... AT 222 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM. THIS STORM WAS LOCATED OVER THE NORTH HALF OF QUABBIN RESERVOIR NEAR PETERSHAM...MOVING NORTHEAST AT 35 MPH. THIS THUNDERSTORM KNOCKED DOWN SEVERAL TREES NEAR ROUTE 202 IN PELHAM. THE SEVERE THUNDERSTORM WILL BE NEAR... PHILLIPSTON BY 235 PM EDT... HUBBARDSTON AND TEMPLETON BY 240 PM EDT... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY EVENING FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE AND CENTRAL RHODE ISLAND. LAT...LON 4263 7205 4242 7192 4227 7250 4237 7256 $$ WTB
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 2:45 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 45 min |
| Jul 15, 3:24 PM EDT | Severe Thunderstorm Warning | BOX | Hampden | 66 min |
| Jul 15, 3:30 PM EDT | Severe Thunderstorm Warning | BOX | Essex, Middlesex | 45 min |
| Jul 15, 3:36 PM EDT | Severe Thunderstorm Warning | BOX | Hampshire | 54 min |
| Jul 15, 4:08 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Worcester | 67 min |
| Jul 15, 4:12 PM EDT | Special Marine Warning | BOX | 48 min | |
| Jul 15, 5:05 PM EDT | Severe Thunderstorm Warning | BOX | Hampden | 24 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2007Every severe thunderstorm warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.