Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 49, NWS Boston/Norton, MA

August 5, 2005Worcester County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 5, 2005, 5:27 PM EDT for Worcester County, Massachusetts. It was in force for 33 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: Aug 5, 2005, 5:27 PM EDT (21:27 UTC)
Expired: Aug 5, 2005, 6:00 PM EDT
In force: 33 min
Issued by: NWS Boston/Norton, MA
Area: Counties, with a storm outline in the text

County Worcester County, MA

The radar

The Boston radar (KBOX), 54 km from the middle of the area, began a volume at 21:30 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
Aug 5, 5:47 PM EDT	TSTM WND DMG	Mendon, MA	MANY LARGE BRANCHES DOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 9.5 hours before the alert went out and 156 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 359 J/kg
Mixed-layer CIN: -167 J/kg
Mixed-layer LCL: 1219 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 148 m²/s²
0-3 km storm-relative helicity: 129 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS51 KBOX 052127
SVRBOX
MAC027-052200-
/O.NEW.KBOX.SV.W.0049.050805T2127Z-050805T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
527 PM EDT FRI AUG 5 2005

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS EXTENDED THE

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS

* UNTIL 600 PM EDT

* AT 525 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR MENDON...OR ABOUT NEAR
  MILFORD...AND MOVING EAST AT 40 MPH.

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE. THIS IS
AN EXTREMELY DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS

LAT...LON 4222 7187 4205 7193 4202 7152 4215 7156

$$

FRANK

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 5, 3:09 PM EDT	Special Marine Warning	BOX		81 min
Aug 5, 4:18 PM EDT	Severe Thunderstorm Warning	BOX	Essex	34 min
Aug 5, 4:21 PM EDT	Special Marine Warning	BOX		54 min
Aug 5, 4:23 PM EDT	Special Marine Warning	BOX		67 min
Aug 5, 4:32 PM EDT	Severe Thunderstorm Warning	BOX	Middlesex, Suffolk	58 min
Aug 5, 4:37 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Worcester	53 min
Aug 5, 4:41 PM EDT	Severe Thunderstorm Warning	BOX	Norfolk	64 min
Aug 5, 5:07 PM EDT	Special Marine Warning	BOX		53 min
Aug 5, 5:18 PM EDT	Severe Thunderstorm Warning	BOX	Middlesex, Norfolk	57 min
Aug 5, 5:34 PM EDT	Special Marine Warning	BOX		86 min
Aug 5, 5:34 PM EDT	Severe Thunderstorm Warning	BOX	Bristol	56 min
Aug 5, 5:39 PM EDT	Severe Thunderstorm Warning	BOX	Suffolk	51 min
Aug 5, 5:48 PM EDT	Severe Thunderstorm Warning	BOX	Plymouth	57 min
Aug 5, 5:53 PM EDT	Special Marine Warning	BOX		67 min
Aug 5, 5:57 PM EDT	Special Marine Warning	BOX		63 min
Aug 5, 6:11 PM EDT	Special Marine Warning	BOX		94 min
Aug 5, 6:37 PM EDT	Severe Thunderstorm Warning	BOX	Barnstable	53 min
Aug 5, 7:06 PM EDT	Special Marine Warning	BOX		84 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2005 Every severe thunderstorm warning in 2005

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.