Alert archive / New Hampshire / Heat Advisories in 2016

Heat Advisory 2, NWS Gray, ME

August 14, 2016Cumberland County, York County, Maine; 4 counties in New Hampshire

NWS Gray, ME issued this heat advisory at Aug 14, 2016, 3:11 AM EDT for Cumberland County, York County, Maine; 4 counties in New Hampshire. It took effect at Aug 14, 2016, 12:00 PM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Aug 14, 2016, 3:11 AM EDT (07:11 UTC)
In effect from
Aug 14, 2016, 12:00 PM EDT
Expired
Aug 14, 2016, 6:00 PM EDT
In force
6 hr
Issued by
NWS Gray, ME

Counties Cumberland County, ME, York County, ME, Hillsborough County, NH, Merrimack County, NH, Rockingham County, NH, Strafford County, NH

The radar

The Portland,ME radar (KGYX), 95 km from the middle of the area, began a volume at 07:10 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

Gray, ME (KGYX), launched 00:00Z, 7.2 hours before the alert went out and 94 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-pSkew-T log-p diagram, Gray, ME at 00:00Z on 2016-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Gray, ME at 00:00Z on 2016-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
3 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
436 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Gray, ME wrote its last area forecast discussion before this heat advisory went out at Aug 13, 10:47 PM EDT, 4 hours 24 minutes earlier.

Area forecast discussion, Aug 13, 10:47 PM EDT, 4 hours 24 minutes before
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Hazardous weather outlook, Aug 14, 3:09 AM EDT, 2 minutes before
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In the hours before

Local storm report, Aug 13, 9:15 PM EDT, 5 hours 56 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
915 PM EDT SAT AUG 13 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0802 PM     TSTM WND DMG     4 W BENNINGTON          42.99N  72.02W
08/13/2016                   HILLSBOROUGH       NH   DEPT OF HIGHWAYS

            TREES BLOCKING RT 123

&&

EVENT NUMBER GYX1602273

MC
Special weather statement, Aug 13, 9:21 PM EDT, 5 hours 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
921 PM EDT SAT AUG 13 2016

NHZ010-012-013-015-140200-
INTERIOR ROCKINGHAM NH-EASTERN HILLSBOROUGH NH-STRAFFORD NH-
WESTERN AND CENTRAL HILLSBOROUGH NH-
921 PM EDT SAT AUG 13 2016

THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  INTERIOR ROCKINGHAM COUNTY IN NEW HAMPSHIRE
  EASTERN HILLSBOROUGH COUNTY IN NEW HAMPSHIRE
  STRAFFORD COUNTY IN NEW HAMPSHIRE
  WESTERN AND CENTRAL HILLSBOROUGH COUNTY IN NEW HAMPSHIRE

* UNTIL 1000 PM EDT

* AT 921 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR HOOKSETT TO
  NEAR NEW IPSWICH...MOVING TO THE EAST AT 45 MPH.

* WIND GUSTS OF 35 TO 45 MPH ARE EXPECTED WITH THESE STORMS. VERY
  HEAVY RAIN IS FALLING...AND WILL CAUSE WATER TO POND ON ROADWAYS
  AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. EXPECT
  FREQUENT CLOUD TO GROUND LIGHTNING WITH THIS LINE OF STORMS.

* LOCATIONS IMPACTED INCLUDE...
  MANCHESTER...
  NASHUA...
  SALEM...
  DERRY...
  AND NORTHWOOD.

LAT...LON 4271 7193 4277 7194 4306 7160 4307 7152
      4305 7151 4304 7146 4302 7145 4301 7140
      4304 7140 4317 7131 4324 7105 4281 7109
      4282 7113 4280 7117 4274 7118 4274 7125
      4270 7129
TIME...MOT...LOC 0119Z 257DEG 37KT 4308 7154 4275 7191
Local storm report, Aug 13, 9:46 PM EDT, 5 hours 25 minutes before
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Special weather statement, Aug 13, 9:49 PM EDT, 5 hours 22 minutes before
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Local storm report, Aug 13, 11:50 PM EDT, 3 hours 21 minutes before
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Special weather statement, Aug 13, 11:54 PM EDT, 3 hours 17 minutes before
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The office that day

Everything else NWS Gray, ME issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 14, 6:55 PM EDTSpecial Weather StatementGYXKnox50 min
Aug 13, 8:13 PM EDTSevere Thunderstorm WarningGYXCheshire, Sullivan50 min
Aug 13, 8:20 PM EDTSpecial Weather StatementGYXHillsborough40 min
Aug 13, 8:28 PM EDTAreal Flood AdvisoryGYXHillsborough, Merrimack3 hr
Aug 13, 8:31 PM EDTAreal Flood AdvisoryGYXSullivan3 hr
Aug 13, 8:49 PM EDTSevere Thunderstorm WarningGYXCheshire35 min
Aug 13, 8:53 PM EDTSpecial Weather StatementGYXBelknap, Carroll, Hillsborough, Merrimack52 min
Aug 13, 9:21 PM EDTSpecial Weather StatementGYXHillsborough, Rockingham39 min
Aug 13, 9:49 PM EDTSpecial Weather StatementGYXRockingham41 min
Aug 13, 11:54 PM EDTSpecial Weather StatementGYXGrafton96 min

Nearby

Heat Advisories in New Hampshire, 2016Heat Advisories in Maine, 2016Every heat advisory in 2016

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.