Alert archive / Massachusetts / Tornado Warnings in 2013
Tornado Warning 9, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this tornado warning at Jul 7, 2013, 3:07 PM EDT for Franklin County, Hampshire County, Worcester County, Massachusetts. It was in force for 23 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
- Jul 7, 2013, 3:07 PM EDT (19:07 UTC)
- Expired
- Jul 7, 2013, 3:30 PM EDT
- In force
- 23 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Franklin County, MA, Hampshire County, MA, Worcester County, MA
The radar
The Boston radar (KBOX), 114 km from the middle of the area, began a volume at 19:09 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, 7.1 hours before the alert went out and 123 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
- 169 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 1029 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
381
WFUS51 KBOX 071907
TORBOX
MAC011-015-027-071930-
/O.NEW.KBOX.TO.W.0009.130707T1907Z-130707T1930Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
307 PM EDT SUN JUL 7 2013
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* TORNADO WARNING FOR...
EASTERN HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS...
SOUTHEASTERN FRANKLIN COUNTY IN WESTERN MASSACHUSETTS...
WESTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...
* UNTIL 330 PM EDT
* AT 300 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
NEAR PELHAM...OR 5 MILES EAST OF AMHERST...AND MOVING EAST AT 20
MPH.
* LOCATIONS IMPACTED INCLUDE...
PELHAM AND SHUTESBURY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4235 7251 4245 7246 4247 7224 4231 7224
TIME...MOT...LOC 1907Z 273DEG 16KT 4238 7242
$$
KJC1 follow-up statement
471
WWUS51 KBOX 071924
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
324 PM EDT SUN JUL 7 2013
MAC011-015-027-071933-
/O.EXP.KBOX.TO.W.0009.000000T0000Z-130707T1930Z/
HAMPSHIRE MA-FRANKLIN MA-WORCESTER MA-
324 PM EDT SUN JUL 7 2013
...THE TORNADO WARNING FOR EASTERN HAMPSHIRE...SOUTHEASTERN FRANKLIN
AND WESTERN WORCESTER COUNTIES WILL EXPIRE AT 330 PM EDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.
LAT...LON 4235 7251 4245 7246 4247 7224 4231 7224
TIME...MOT...LOC 1923Z 273DEG 16KT 4238 7242
$$
KJCThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 9:57 AM EDT | Heat Advisory | BOX | Bristol, Hampden, Hampshire, Middlesex, Norfolk, Plymouth and 1 more | 7 hr |
| Jul 7, 1:43 PM EDT | Special Weather Statement | BOX | Worcester | 47 min |
| Jul 7, 2:32 PM EDT | Special Weather Statement | BOX | Franklin | 43 min |
| Jul 7, 2:37 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Hampshire, Worcester | 38 min |
| Jul 7, 2:45 PM EDT | Special Weather Statement | BOX | Plymouth | 45 min |
| Jul 7, 3:04 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Hampden, Hampshire, Worcester | 41 min |
| Jul 7, 3:38 PM EDT | Special Weather Statement | BOX | Hampden | 52 min |
| Jul 7, 3:48 PM EDT | Special Weather Statement | BOX | Hampden | 42 min |
| Jul 7, 4:18 PM EDT | Special Weather Statement | BOX | Hampden | 42 min |
| Jul 7, 4:20 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Hampshire, Worcester | 40 min |
| Jul 7, 4:31 PM EDT | Special Marine Warning | BOX | 59 min | |
| Jul 7, 4:35 PM EDT | Special Weather Statement | BOX | Worcester | 40 min |
| Jul 7, 5:01 PM EDT | Special Weather Statement | BOX | Worcester | 44 min |
| Jul 7, 5:06 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Worcester | 24 min |
Nearby
Tornado Warnings in Massachusetts, 2013Every tornado warning in 2013Tornadoes in 2013
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.