Alert archive / Massachusetts / Special Weather Statements in 2015

Special Weather Statement, NWS Boston/Norton, MA

August 18, 2015Hampden County, Massachusetts

NWS Boston/Norton, MA issued this special weather statement at Aug 18, 2015, 1:26 PM EDT for Hampden County, Massachusetts. It was in force for 49 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: Aug 18, 2015, 1:26 PM EDT (17:26 UTC)
Expired: Aug 18, 2015, 2:15 PM EDT
In force: 49 min
Issued by: NWS Boston/Norton, MA

County Hampden County, MA

The radar

The Albany radar (KENX), 110 km from the middle of the area, began a volume at 17:29 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, 5.4 hours before the alert went out and 100 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: 82 J/kg
Mixed-layer CIN: -118 J/kg
Mixed-layer LCL: 1227 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 0 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.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Boston/Norton, MA wrote its last area forecast discussion before this special weather statement went out at Aug 18, 10:12 AM EDT, 3 hours 14 minutes earlier.

Area forecast discussion, Aug 18, 10:12 AM EDT, 3 hours 14 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Aug 18, 3:24 AM EDT, 10 hours 2 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAUNTON MA
324 AM EDT TUE AUG 18 2015

CTZ003-004-MAZ002>024-026-RIZ001>008-190730-
TOLLAND CT-WINDHAM CT-WESTERN FRANKLIN MA-EASTERN FRANKLIN MA-
NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-
EASTERN ESSEX MA-WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA-
EASTERN HAMPSHIRE MA-EASTERN HAMPDEN MA-SOUTHERN WORCESTER MA-
WESTERN NORFOLK MA-SOUTHEAST MIDDLESEX MA-SUFFOLK MA-
EASTERN NORFOLK MA-NORTHERN BRISTOL MA-WESTERN PLYMOUTH MA-
EASTERN PLYMOUTH MA-SOUTHERN BRISTOL MA-SOUTHERN PLYMOUTH MA-
BARNSTABLE MA-DUKES MA-NANTUCKET MA-NORTHERN MIDDLESEX MA-
NORTHWEST PROVIDENCE RI-SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-
EASTERN KENT RI-BRISTOL RI-WASHINGTON RI-NEWPORT RI-BLOCK ISLAND RI-
324 AM EDT TUE AUG 18 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN CONNECTICUT...ALL OF
MASSACHUSETTS EXCEPT BERKSHIRE COUNTY...AND RHODE ISLAND.

.DAY ONE...TODAY AND TONIGHT.

THERE IS A LOW RISK OF AN ISOLATED THUNDERSTORM OR TWO WITH GUSTY
WINDS...HEAVY RAINFALL...AND LOCALIZED STREET FLOODING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE IS A MODERATE RISK OF HEAVY RAIN AND URBAN AND POOR DRAINAGE
FLOODING WITH SHOWERS AND THUNDERSTORMS FRIDAY THROUGH SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

CTZ002-190730-
HARTFORD CT-
324 AM EDT TUE AUG 18 2015

...AIR QUALITY ALERT IN EFFECT FROM 11 AM THIS MORNING TO 11 PM EDT
THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN CONNECTICUT.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   AIR QUALITY ALERT.

THERE IS A LOW RISK OF AN ISOLATED THUNDERSTORM OR TWO WITH GUSTY
WINDS...HEAVY RAINFALL...AND LOCALIZED STREET FLOODING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE IS A MODERATE RISK OF HEAVY RAIN AND URBAN AND POOR DRAINAGE
FLOODING WITH SHOWERS AND THUNDERSTORMS FRIDAY THROUGH SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ230>237-250-251-254>256-190730-
BOSTON HARBOR-CAPE COD BAY-NANTUCKET SOUND-VINEYARD SOUND-
BUZZARDS BAY-RHODE ISLAND SOUND-NARRAGANSETT BAY-BLOCK ISLAND SOUND-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK NATIONAL
MARINE SANCTUARY-MASSACHUSETTS BAY AND IPSWICH BAY-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD AND
NANTUCKET-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT TO
20 NM SOUTH OF BLOCK ISLAND-
324 AM EDT TUE AUG 18 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MASSACHUSETTS AND RHODE
ISLAND COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

RLG

FOR THE LATEST UPDATES...PLEASE VISIT OUR WEBPAGE AT
WWW.WEATHER.GOV/BOSTON

YOU CAN FOLLOW US ON FACEBOOK AT
WWW.FACEBOOK.COM/NWSBOSTON

YOU CAN FOLLOW US ON TWITTER AT
@NWSBOSTON

In the hours before

Special weather statement, Aug 18, 12:18 PM EDT, 1 hour 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1218 PM EDT TUE AUG 18 2015

MAZ002-003-008-181700-
WESTERN FRANKLIN-EASTERN FRANKLIN-WESTERN HAMPSHIRE-
1218 PM EDT TUE AUG 18 2015

...THHUNDERSTORMS WITH HEAVY RAINFALL DEVELOPING IN NORTHWESTERN
FRANKLIN COUNTIES COUNTIES...

AT 1216 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A THUNDERSTORM WITH HEAVY RAIN OVER BUCKLAND...OR 9 MILES WEST OF
GREENFIELD...MOVING NORTHEAST AT 10 MPH.

RAINFALL RATES UP TO ONE INCH PER HOUR CAN BE EXPECTED WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
GREENFIELD...DEERFIELD...BUCKLAND...CONWAY...SHELBURNE...ASHFIELD...
COLRAIN...CHARLEMONT...CUMMINGTON...LEYDEN...HEATH...PLAINFIELD...
ROWE AND HAWLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL WAS OCCURRING WITH THIS STORM. MINOR URBAN AND
POOR DRAINAGE FLOODING CAN BE EXPECTED. DO NOT DRIVE THROUGH FLOODED
ROADS.

&&

LAT...LON 4274 7269 4273 7261 4256 7257 4246 7293
      4266 7293
TIME...MOT...LOC 1616Z 246DEG 11KT 4261 7279

KJC

Special weather statement, Aug 18, 12:37 PM EDT, 49 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1237 PM EDT TUE AUG 18 2015

MAZ009>011-181715-
EASTERN HAMPDEN-WESTERN HAMPDEN-EASTERN HAMPSHIRE-
1237 PM EDT TUE AUG 18 2015

...STRONG THUNDERSTORMS DEVELOPING IN SOUTHWESTERN HAMPDEN COUNTIES
COUNTIES...

AT 1236 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM OVER RUSSELL...OR NEAR WESTFIELD...MOVING
NORTHEAST AT 10 MPH.

HAIL UP TO THE SIZE OF PEAS AND WIND GUSTS UP TO 30 MPH CAN BE
EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SPRINGFIELD...CHICOPEE...WESTFIELD...HOLYOKE...NORTHAMPTON...
AGAWAM...WEST SPRINGFIELD...EASTHAMPTON...SOUTHWICK...SOUTHAMPTON...
RUSSELL...WESTHAMPTON...GRANVILLE...BLANDFORD AND MONTGOMERY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL WAS OCCURRING WITH THIS STORM. MINOR URBAN AND
POOR DRAINAGE FLOODING CAN BE EXPECTED. DO NOT DRIVE THROUGH FLOODED
ROADS.

&&

LAT...LON 4218 7294 4227 7276 4227 7274 4228 7273
      4231 7267 4211 7256 4206 7286
TIME...MOT...LOC 1636Z 245DEG 12KT 4215 7283

KJC

Special weather statement, Aug 18, 1:26 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
126 PM EDT TUE AUG 18 2015

CTZ002-MAZ009-011-181815-
HARTFORD-EASTERN HAMPDEN-WESTERN HAMPDEN-
126 PM EDT TUE AUG 18 2015

...SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN OVER NORTHWESTERN
HARTFORD AND WESTERN HAMPDEN COUNTIES COUNTIES...

AT 123 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A CLUSTER OF SHOWERS AND THUNDERSTORMS OVER WESTERN HAMPDEN AND
NORTHWEST HARTFORD COUNTIES...DRIFTING SLOWLY EAST.

VERY HEAVY RAINFALL CAN BE EXPECTED WITH THESE STORMS. RAINFALL
RATES OF 1 TO 2 INCHES PER HOUR WERE ESTIMATED BY RADAR.

LOCATIONS IMPACTED INCLUDE...
WESTFIELD...AGAWAM...SUFFIELD...GRANBY...SOUTHWICK...SOUTHAMPTON...
HARTLAND...RUSSELL...GRANVILLE...BLANDFORD...MONTGOMERY AND TOLLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL WAS OCCURRING WITH THIS STORM. MINOR URBAN AND
POOR DRAINAGE FLOODING CAN BE EXPECTED. DO NOT DRIVE THROUGH FLOODED
ROADS.

&&

LAT...LON 4223 7279 4222 7278 4220 7278 4219 7275
      4205 7265 4197 7292 4197 7300 4201 7302
      4204 7301 4204 7303 4211 7307 4212 7306
TIME...MOT...LOC 1723Z 250DEG 17KT 4208 7288

KJC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 18, 12:18 PM EDT	Special Weather Statement	BOX	Franklin	42 min
Aug 18, 12:37 PM EDT	Special Weather Statement	BOX	Hampden	38 min
Aug 18, 2:38 PM EDT	Special Weather Statement	BOX	Suffolk	37 min
Aug 18, 3:02 PM EDT	Special Weather Statement	BOX	Norfolk	43 min
Aug 18, 3:06 PM EDT	Special Weather Statement	BOX	Suffolk	39 min
Aug 18, 3:08 PM EDT	Special Weather Statement	BOX	Essex	37 min
Aug 18, 3:33 PM EDT	Special Weather Statement	BOX	Middlesex	42 min
Aug 18, 3:46 PM EDT	Special Weather Statement	BOX	Norfolk	44 min
Aug 18, 3:55 PM EDT	Special Weather Statement	BOX	Norfolk	50 min
Aug 18, 4:10 PM EDT	Areal Flood Warning	BOX	Bristol, Norfolk	2 hr
Aug 18, 4:45 PM EDT	Special Weather Statement	BOX	Norfolk	45 min
Aug 18, 5:27 PM EDT	Areal Flood Warning	BOX	Middlesex, Norfolk, Worcester	3 hr
Aug 18, 5:29 PM EDT	Special Weather Statement	BOX	Hampden	46 min
Aug 18, 5:59 PM EDT	Special Weather Statement	BOX	Worcester	46 min
Aug 18, 6:03 PM EDT	Severe Thunderstorm Warning	BOX	Middlesex, Worcester	42 min

Nearby

Special Weather Statements in Massachusetts, 2015 Every special weather statement in 2015

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.