Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 22, NWS Gray, ME

June 23, 2013Carroll County, Coos County, Grafton County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Jun 23, 2013, 3:33 PM EDT for Carroll County, Coos County, Grafton County, New Hampshire. It was in force for 42 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
Jun 23, 2013, 3:33 PM EDT (19:33 UTC)
Expired
Jun 23, 2013, 4:15 PM EDT
In force
42 min
Issued by
NWS Gray, ME
Area
Storm-based polygon

Counties Carroll County, NH, Coos County, NH, Grafton County, NH

The radar

The Portland,ME radar (KGYX), 100 km from the middle of the area, began a volume at 19:34 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 23, 3:16 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.6 hours before the alert went out and 253 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, Albany, NY at 12:00Z on 2013-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 64 joules per kilogram.LCLLFCEL10008507005003002001001 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, Albany, NY at 12:00Z on 2013-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 square meters per square second.1939Sfc1 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
64 J/kg
Mixed-layer CIN
-217 J/kg
Mixed-layer LCL
1012 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
125 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 Jun 23, 9:56 AM EDT, 5 hours 37 minutes earlier.

Area forecast discussion, Jun 23, 9:56 AM EDT, 5 hours 37 minutes before
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Hazardous weather outlook, Jun 23, 3:27 PM EDT, 6 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAY ME
327 PM EDT SUN JUN 23 2013

MEZ007-012-018>020-023-024-NHZ001>010-013-014-241930-
NORTHERN OXFORD-SOUTHERN OXFORD-INTERIOR YORK-INTERIOR CUMBERLAND-
ANDROSCOGGIN-COASTAL YORK-COASTAL CUMBERLAND-NORTHERN COOS-
SOUTHERN COOS-NORTHERN GRAFTON-NORTHERN CARROLL-SOUTHERN GRAFTON-
SOUTHERN CARROLL-SULLIVAN-MERRIMACK-BELKNAP-STRAFFORD-
INTERIOR ROCKINGHAM-COASTAL ROCKINGHAM-
327 PM EDT SUN JUN 23 2013

...SEVERE THUNDERSTORM WATCH 351 IN EFFECT UNTIL 11 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MAINE...CENTRAL NEW
HAMPSHIRE...NORTHERN NEW HAMPSHIRE AND SOUTHEASTERN NEW HAMPSHIRE.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

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

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THUNDERSTORMS ARE EXPECTED ACROSS PARTS OF THE AREA ON MONDAY AND
TUESDAY. ON TUESDAY... THE ENVIRONMENT WILL BE MORE FAVORABLE FOR
STRONG TO SEVERE THUNDERSTORMS. DEEP MOISTURE WILL COMBINE WITH
INCREASING UPPER LEVEL WINDS TO PROVIDE A THREAT FOR DAMAGING
WINDS AND LARGE HAIL FROM THE STRONGER STORMS ON TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

MEZ008-009-013-014-021-022-025>028-241930-
NORTHERN FRANKLIN-CENTRAL SOMERSET-SOUTHERN FRANKLIN-
SOUTHERN SOMERSET-KENNEBEC-INTERIOR WALDO-SAGADAHOC-LINCOLN-KNOX-
COASTAL WALDO-
327 PM EDT SUN JUN 23 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MAINE.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS TODAY AND TONIGHT.
WHILE WIDESPREAD SEVERE STORMS ARE NOT EXPECTED AT THIS
TIME...A FEW STORMS MAY BECOME SEVERE WITH LOCALLY DAMAGING
WINDS AND HAIL UP TO ONE INCH IN DIAMETER. IN ADDITION ANY
THUNDERSTORM COULD CONTAIN HEAVY RAINFALL LEADING TO LOCALIZED
FLOODING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THUNDERSTORMS ARE EXPECTED ACROSS PARTS OF THE AREA ON MONDAY AND
TUESDAY. ON TUESDAY... THE ENVIRONMENT WILL BE MORE FAVORABLE FOR
STRONG TO SEVERE THUNDERSTORMS. DEEP MOISTURE WILL COMBINE WITH
INCREASING UPPER LEVEL WINDS TO PROVIDE A THREAT FOR DAMAGING
WINDS AND LARGE HAIL FROM THE STRONGER STORMS ON TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ150>152-241930-
STONINGTON ME TO PORT CLYDE ME OUT TO 25 NM-PENOBSCOT BAY-
PORT CLYDE ME TO CAPE ELIZABETH ME OUT TO 25 NM-
327 PM EDT SUN JUN 23 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PENOBSCOT BAY...THE COASTAL
WATERS FROM PORT CLYDE ME TO CAPE ELIZABETH ME AND THE COASTAL
WATERS FROM STONINGTON ME TO PORT CLYDE ME.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ153-154-241930-
CASCO BAY-CAPE ELIZABETH ME TO MERRIMACK RIVER MA OUT TO 25 NM-
327 PM EDT SUN JUN 23 2013

...SEVERE THUNDERSTORM WATCH 351 IN EFFECT UNTIL 11 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CASCO BAY AND THE COASTAL
WATERS FROM CAPE ELIZABETH ME TO MERRIMACK RIVER MA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

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

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY.

In the hours before

Special weather statement, Jun 23, 2:08 PM EDT, 1 hour 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
208 PM EDT SUN JUN 23 2013

NHZ002-003-231900-
NORTHERN GRAFTON-SOUTHERN COOS-
208 PM EDT SUN JUN 23 2013

...STRONG THUNDERSTORMS WILL IMPACT COOS COUNTY AND GRAFTON COUNTY
THROUGH 300 PM EDT...

AT 204 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF STRONG THUNDERSTORMS CENTERED NEAR ST. JOHNSBURY VERMONT
...MOVING TO THE EAST AT 25 MPH. THIS CLUSTER OF STRONG
THUNDERSTORMS WILL AFFECT AREAS IN AND AROUND LITTLETON...DALTON...
GILMAN...FOREST LAKE STATE PARK...WHITEFIELD...TWIN MOUNTAIN...
CARROLL AND JEFFERSON THROUGH 300 PM EDT.

THESE THUNDERSTORMS CAN PRODUCE WIND GUSTS UP TO 50 MPH...HEAVY RAIN
AND FREQUENT LIGHTNING STRIKES. THE HEAVY RAIN COULD LOWER
VISIBILITY TO NEAR ZERO AND CAUSE PONDING OF WATER IN POOR DRAINAGE
AREAS.

IF YOU ARE OUTDOORS AND STORMS APPROACH YOUR LOCATION...MOVE INDOORS
OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE MORE THAN 5
MILES AWAY FROM THE PARENT THUNDERSTORM.

LAT...LON 4435 7192 4434 7186 4436 7183 4441 7179
      4442 7170 4445 7167 4447 7165 4449 7142
      4424 7150 4434 7194

SJC
Special weather statement, Jun 23, 3:18 PM EDT, 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
318 PM EDT SUN JUN 23 2013

MEZ007-012-019-NHZ002>004-232000-
INTERIOR CUMBERLAND-NORTHERN CARROLL-NORTHERN GRAFTON-NORTHERN
OXFORD-SOUTHERN COOS-SOUTHERN OXFORD-
318 PM EDT SUN JUN 23 2013

...STRONG THUNDERSTORMS WILL IMPACT OXFORD COUNTY...COOS COUNTY...
CARROLL COUNTY...GRAFTON COUNTY AND CUMBERLAND COUNTY THROUGH 400 PM
EDT...

AT 316 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS SCATTERED ALONG A LINE EXTENDING FROM LITTLETON
TO NEAR BRIDGTON...MOVING TO THE EAST AT 20 MPH. THESE STRONG
THUNDERSTORMS WILL AFFECT AREAS IN AND AROUND TWIN MOUNTAIN...
GLEN...CRAWFORD NOTCH STATE PARK...WEST BRIDGTON...SWEDEN...STOWE
...NAPLES...LOVELL...BRIDGTON AND LITTLETON THROUGH 400 PM EDT.

SMALL HAIL UP TO THREE QUARTER INCH IN DIAMETER...HEAVY DOWNPOURS
...EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS UP TO 50 MPH
ARE POSSIBLE WITH THESE STORMS.

HEAVY RAINFALL CAN BE EXPECTED WITH LOCAL PONDING IN STREETS AND
LOW-LYING AREAS.

IF YOU ARE OUTDOORS AND STORMS APPROACH YOUR LOCATION...MOVE INDOORS
OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE MORE THAN 5
MILES AWAY FROM THE PARENT THUNDERSTORM.

LAT...LON 4432 7203 4435 7192 4434 7186 4436 7182
      4441 7179 4442 7170 4447 7165 4449 7161
      4454 7158 4456 7161 4457 7156 4461 7156
      4446 7055 4393 7056

!SJC

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 4:09 PM EDTSevere Thunderstorm WarningGYXCumberland, Oxford51 min
Jun 23, 4:19 PM EDTSpecial Weather StatementGYXCumberland26 min
Jun 23, 4:42 PM EDTSevere Thunderstorm WarningGYXCumberland, Oxford48 min
Jun 23, 4:44 PM EDTSevere Thunderstorm WarningGYXAndroscoggin, Cumberland, Oxford31 min
Jun 23, 4:48 PM EDTSpecial Weather StatementGYXYork42 min
Jun 23, 5:01 PM EDTSevere Thunderstorm WarningGYXYork44 min
Jun 23, 5:16 PM EDTSpecial Weather StatementGYXFranklin29 min
Jun 23, 5:18 PM EDTSevere Thunderstorm WarningGYXCumberland42 min
Jun 23, 5:44 PM EDTSevere Thunderstorm WarningGYXYork46 min
Jun 23, 5:48 PM EDTSpecial Marine WarningGYX87 min
Jun 23, 5:52 PM EDTSevere Thunderstorm WarningGYXCumberland38 min
Jun 23, 6:06 PM EDTSpecial Marine WarningGYX84 min
Jun 23, 6:30 PM EDTSevere Thunderstorm WarningGYXCumberland, Oxford, York45 min
Jun 23, 6:37 PM EDTSpecial Weather StatementGYXCumberland38 min
Jun 23, 6:50 PM EDTSpecial Weather StatementGYXFranklin40 min
Jun 23, 7:24 PM EDTSpecial Weather StatementGYXYork51 min
Jun 23, 7:53 PM EDTSevere Thunderstorm WarningGYXYork37 min
Jun 23, 2:25 PM EDTSevere Thunderstorm WarningGYXCoos, Grafton50 min
Jun 23, 3:18 PM EDTSpecial Weather StatementGYXCoos42 min
Jun 23, 3:47 PM EDTFlash Flood WarningGYXCoos, Grafton3 hr
Jun 23, 3:58 PM EDTSevere Thunderstorm WarningGYXCarroll, Coos, Grafton32 min
Jun 23, 4:58 PM EDTSpecial Weather StatementGYXCarroll47 min
Jun 23, 5:03 PM EDTSevere Thunderstorm WarningGYXCarroll, Coos, Grafton42 min
Jun 23, 5:23 PM EDTSpecial Weather StatementGYXCarroll37 min
Jun 23, 5:31 PM EDTAreal Flood AdvisoryGYXCarroll, Coos, Grafton119 min
Jun 23, 5:53 PM EDTSpecial Weather StatementGYXCarroll37 min
Jun 23, 6:10 PM EDTSpecial Weather StatementGYXGrafton35 min
Jun 23, 7:09 PM EDTSpecial Weather StatementGYXBelknap51 min
Jun 23, 7:31 PM EDTSpecial Weather StatementGYXBelknap44 min
Jun 23, 2:08 PM EDTSpecial Weather StatementGYXCaledonia52 min

Nearby

Severe Thunderstorm Warnings in New Hampshire, 2013Every severe thunderstorm warning 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.