Alert archive / Maine / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 51, NWS Gray, ME

July 17, 2016Cumberland County, Oxford County, Maine

NWS Gray, ME issued this severe thunderstorm warning at Jul 17, 2016, 4:01 PM EDT for Cumberland County, Oxford County, Maine. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 17, 2016, 4:01 PM EDT (20:01 UTC)
Expired: Jul 17, 2016, 4:30 PM EDT
In force: 29 min
Issued by: NWS Gray, ME
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Cumberland County, ME, Oxford County, ME

The radar

The Portland,ME radar (KGYX), 37 km from the middle of the area, began a volume at 20:02 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 12:00Z, 8.0 hours before the alert went out and 37 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: 57 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 671 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 142 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 17, 3:01 PM EDT, 1 hour earlier.

Area forecast discussion, Jul 17, 3:01 PM EDT, 1 hour before

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Hazardous weather outlook, Jul 17, 3:08 PM EDT, 53 minutes before

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In the hours before

Special weather statement, Jul 17, 1:55 PM EDT, 2 hours 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
155 PM EDT SUN JUL 17 2016

MEZ007>009-NHZ001-171900-
NORTHERN OXFORD ME-NORTHERN FRANKLIN ME-CENTRAL SOMERSET ME-
NORTHERN COOS NH-
155 PM EDT SUN JUL 17 2016

THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  NORTHERN OXFORD COUNTY IN MAINE
  NORTHERN FRANKLIN COUNTY IN MAINE
  CENTRAL SOMERSET COUNTY IN MAINE
  NORTHERN COOS COUNTY IN NEW HAMPSHIRE

* UNTIL 300 PM EDT

* AT 155 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 15 MILES SOUTHEAST
  OF JACKMAN TO 11 MILES NORTHEAST OF DIXVILLE NOTCH...MOVING TO THE
  EAST AT 20 MPH.

* 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...
  RANGELEY...
  EUSTIS...
  STRATTON...
  DAVIS...
  AND OQUOSSOC.

LAT...LON 4573 6981 4572 6979 4569 6978 4567 6974
      4565 6973 4565 6970 4564 6971 4562 6970
      4561 6971 4558 6971 4554 6978 4541 6974
      4489 7078 4500 7126 4575 6979
TIME...MOT...LOC 1753Z 259DEG 19KT 4547 7002 4495 7110

ARNOTT

Special weather statement, Jul 17, 2:40 PM EDT, 1 hour 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
240 PM EDT SUN JUL 17 2016

MEZ009-171915-
CENTRAL SOMERSET ME-
240 PM EDT SUN JUL 17 2016

THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  CENTRAL SOMERSET COUNTY IN MAINE

* UNTIL 315 PM EDT

* AT 239 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
  TRACKING A STRONG THUNDERSTORM 14 MILES NORTH OF BINGHAM
  OR NEAR CARATUNK...MOVING TO THE EAST AT 35 MPH.

* PEA SIZE HAIL AND STRONG WIND GUSTS OF 45 TO 55 MPH ARE EXPECTED
  WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  THE FORKS...
  LAKE MOXIE...
  AND CARATUNK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PROLONGED HEAVY RAINFALL MAY CAUSE WATER TO FLOW OVER THE ROADWAY. DO
NOT DRIVE YOUR VEHICLE WHERE THE ROAD HAS BECOME FLOODED.

THIS STORM MAY INTENSIFY...SO MONITOR LOCAL RADIO AND TELEVISION FOR
ADDITIONAL INFORMATION...AND POSSIBLE WARNINGS...FROM THE NATIONAL
WEATHER SERVICE.

&&

LAT...LON 4531 6970 4529 6970 4529 6971 4515 6966
      4516 7006 4534 7009 4539 6973
TIME...MOT...LOC 1838Z 265DEG 32KT 4526 6998

KIMBLE

Special weather statement, Jul 17, 3:42 PM EDT, 19 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 3:00 AM EDT	Special Weather Statement	GYX	Cumberland	30 min
Jul 17, 4:19 AM EDT	Special Weather Statement	GYX	Androscoggin	26 min
Jul 17, 1:55 PM EDT	Special Weather Statement	GYX	Somerset	65 min
Jul 17, 2:40 PM EDT	Special Weather Statement	GYX	Somerset	35 min
Jul 17, 3:00 PM EDT	Severe Thunderstorm Warning	GYX	Somerset	45 min
Jul 17, 3:42 PM EDT	Special Weather Statement	GYX	Oxford	48 min
Jul 17, 4:53 PM EDT	Special Weather Statement	GYX	Waldo	52 min
Jul 17, 5:30 PM EDT	Special Weather Statement	GYX	Kennebec	45 min
Jul 17, 2:00 AM EDT	Special Weather Statement	GYX	Cheshire	30 min
Jul 17, 2:28 AM EDT	Special Weather Statement	GYX	Cheshire	47 min
Jul 17, 2:34 AM EDT	Severe Thunderstorm Warning	GYX	Cheshire, Hillsborough, Sullivan	26 min
Jul 17, 2:49 AM EDT	Special Weather Statement	GYX	Merrimack	26 min
Jul 17, 2:51 AM EDT	Special Weather Statement	GYX	Cheshire	24 min
Jul 17, 3:08 AM EDT	Special Weather Statement	GYX	Belknap	37 min
Jul 17, 3:12 AM EDT	Special Weather Statement	GYX	Merrimack	48 min
Jul 17, 3:30 AM EDT	Special Weather Statement	GYX	Sullivan	30 min

Nearby

Severe Thunderstorm Warnings in Maine, 2016 Every severe thunderstorm warning 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.