Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 64, NWS Gray, ME

July 18, 2016Carroll County, Coos County, Grafton County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Jul 18, 2016, 5:58 PM EDT for Carroll County, Coos County, Grafton County, New Hampshire. It was in force for 47 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: Jul 18, 2016, 5:58 PM EDT (21:58 UTC)
Expired: Jul 18, 2016, 6:45 PM EDT
In force: 47 min
Issued by: NWS Gray, ME
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

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

The radar

The Portland,ME radar (KGYX), 121 km from the middle of the area, began a volume at 21:59 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jul 18, 11:12 AM EDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 10.0 hours before the alert went out and 121 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: 24 J/kg
Mixed-layer CIN: -141 J/kg
Mixed-layer LCL: 1173 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 219 m²/s²
0-3 km storm-relative helicity: 216 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

273 
WUUS51 KGYX 182158
SVRGYX
NHC003-007-009-182245-
/O.NEW.KGYX.SV.W.0064.160718T2158Z-160718T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GRAY ME
558 PM EDT MON JUL 18 2016

THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN GRAFTON COUNTY IN NORTHERN NEW HAMPSHIRE...
  NORTH CENTRAL CARROLL COUNTY IN NORTHERN NEW HAMPSHIRE...
  SOUTHWESTERN COOS COUNTY IN NORTHERN NEW HAMPSHIRE...

* UNTIL 645 PM EDT

* AT 557 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
  FRANCONIA...OR 3 MILES SOUTH OF LITTLETON...MOVING EAST AT 35 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  LITTLETON...BETHLEHEM...LINCOLN...FRANCONIA...MOUNT WASHINGTON...
  CARROLL...BARTLETT...LISBON...JEFFERSON...DALTON...
  HART'S LOCATION...SUGAR HILL...RANDOLPH...WHITEFIELD AND LIVERMORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

THIS THUNDERSTORM IS CAPABLE OF PRODUCING ALL TYPES OF SEVERE
WEATHER INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE
WINDS AND TORNADOES. MOVE QUICKLY TO A SAFE SHELTER SUCH AS AN
INTERIOR ROOM...A BATHROOM...CLOSET OR BASEMENT.

&&

LAT...LON 4434 7186 4440 7129 4405 7133 4421 7183
      4434 7187
TIME...MOT...LOC 2157Z 266DEG 29KT 4426 7176 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

KIMBLE

3 follow-up statements

817 
WWUS51 KGYX 182208
SVSGYX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
608 PM EDT MON JUL 18 2016

NHC003-007-009-182245-
/O.CON.KGYX.SV.W.0064.000000T0000Z-160718T2245Z/
GRAFTON NH-CARROLL NH-COOS NH-
608 PM EDT MON JUL 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHEASTERN GRAFTON...NORTH CENTRAL CARROLL AND SOUTHWESTERN
COOS COUNTIES...

AT 607 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER BETHLEHEM...
MOVING EAST AT 30 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
LITTLETON...BETHLEHEM...LINCOLN...FRANCONIA...MOUNT WASHINGTON...
CARROLL...BARTLETT...LISBON...JEFFERSON...HART'S LOCATION...
SUGAR HILL...RANDOLPH...WHITEFIELD AND LIVERMORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4405 7133 4421 7183 4429 7186 4437 7129
TIME...MOT...LOC 2207Z 271DEG 24KT 4424 7167 

HAIL...1.00IN
WIND...60MPH
 
$$

KIMBLE

488 
WWUS51 KGYX 182230
SVSGYX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
630 PM EDT MON JUL 18 2016

NHC003-007-009-182245-
/O.CON.KGYX.SV.W.0064.000000T0000Z-160718T2245Z/
GRAFTON NH-CARROLL NH-COOS NH-
630 PM EDT MON JUL 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHEASTERN GRAFTON...NORTH CENTRAL CARROLL AND SOUTH CENTRAL
COOS COUNTIES...

AT 630 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED 9 MILES WEST OF
MOUNT WASHINGTON...OR 10 MILES SOUTHEAST OF BETHLEHEM...MOVING EAST
AT 30 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
BETHLEHEM...LINCOLN...FRANCONIA...CARROLL...BARTLETT...
HART'S LOCATION...SUGAR HILL AND LIVERMORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4405 7133 4421 7183 4429 7152 4433 7130
TIME...MOT...LOC 2230Z 272DEG 26KT 4422 7149 

HAIL...1.00IN
WIND...60MPH
 
$$

KIMBLE

005 
WWUS51 KGYX 182238 RRA
SVSGYX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
638 PM EDT MON JUL 18 2016

NHC003-007-009-182245-
/O.CON.KGYX.SV.W.0064.000000T0000Z-160718T2245Z/
GRAFTON NH-CARROLL NH-COOS NH-
638 PM EDT MON JUL 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHEASTERN GRAFTON...NORTH CENTRAL CARROLL AND SOUTH CENTRAL
COOS COUNTIES...

AT 638 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES SOUTHWEST
OF MOUNT WASHINGTON...OR 13 MILES EAST OF BETHLEHEM...MOVING EAST AT
30 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
BETHLEHEM...LINCOLN...FRANCONIA...MOUNT WASHINGTON...CARROLL...
BARTLETT...HART'S LOCATION AND LIVERMORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4417 7172 4428 7150 4431 7130 4405 7133
TIME...MOT...LOC 2238Z 274DEG 26KT 4420 7143 

HAIL...1.00IN
WIND...60MPH
 
$$

KIMBLE

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 18, 3:54 PM EDT, 2 hours 4 minutes earlier.

Area forecast discussion, Jul 18, 3:54 PM EDT, 2 hours 4 minutes before

Area Forecast Discussion
National Weather Service Gray ME
354 PM EDT MON JUL 18 2016

.SYNOPSIS...
A cold front will push offshore overnight. High pressure will
build in from the west Tuesday and will settle offshore south of
New England on Wednesday. High pressure will hold south of New
England on Thursday. A cold front will cross the region late
Friday or early Saturday. A narrow ridge of high pressure will
build over the region on Sunday.

&&

.NEAR TERM /THROUGH TONIGHT/...
Severe weather event on-going at this time across the region with
several severe thunderstorm and tornado warnings already issued.
Expect this activity to continue into the early evening hours as
as strong shear and capes of 1500 to 2500 prevail across much of
the forecast area. Severe thunderstorm watch remains in effect
through 800 pm.

Thunderstorms will gradually lose their punch as heating subsides
later this evening but expect showers and some thunderstorms to
continue through the evening hours...espcially in southern and
coastal zones. This activity should be pretty much offshore by midnight
as the front pushes east. Low temps overnight will range through
the 50s in the north and lower to mid 60s in the south.

&&

.SHORT TERM /TUESDAY THROUGH TUESDAY NIGHT/...
High pressure builds in from the west on Tuesday. Cooler and drier
air will be ushered in on gusty northwest winds. Expect a mix of
sun and clouds in the mountains and mostly sunny skies elsewhere.
Highs will range from the mid 60s to mid 70s north and mid 70s to
lower 80s south.

Mostly clear skies and diminishing winds Tuesday night will set
the stage for some chilly overnight lows. Expect temps to bottom
out in the lower to mid 40s in cooler mountain valley in the north
and in the upper 40s to mid 50s south.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
Models are indicating wonderful weather for Wednesday and Thursday
with low humidity and near seasonable temperatures. By Friday the
hot and humid air returns with highs in the lower 90s and dew
points climbing back into the mid to upper 60s with temperature
regime continuing through the weekend. A series of short waves
will be moving through starting Friday with shower and
thunderstorms occurring especially Friday afternoon into early
Saturday. shower will develop again each afternoon as there will
be several frontal boundaries around. Difficult to time these
boundaries but it soes not look like the weekend will be
completely dry.

&&

.AVIATION /19Z MONDAY THROUGH SATURDAY/...
Short Term...VFR tonight with areas of MVFR ceilings/vsby in
scattered thunderstorms this evening. VFR Tuesday and Tuesday
night.

Long Term...expect VFR Wednesday and Thursday. MVFR/IFR likely in
showers and thunderstorms Friday afternoon through Saturday
morning.

&&

.MARINE...
Short Term...No flags.

Long Term...SCA winds and seas possible Thursday afternoon through
Saturday.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...None.
NH...None.
MARINE...None.

&&

Hazardous weather outlook, Jul 18, 7:44 AM EDT, 10 hours 14 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE GRAY ME
744 AM EDT MON JUL 18 2016

MEZ007>009-012>014-018>028-NHZ001>015-191145-
NORTHERN OXFORD-NORTHERN FRANKLIN-CENTRAL SOMERSET-SOUTHERN OXFORD-
SOUTHERN FRANKLIN-SOUTHERN SOMERSET-INTERIOR YORK-
INTERIOR CUMBERLAND-ANDROSCOGGIN-KENNEBEC-INTERIOR WALDO-
COASTAL YORK-COASTAL CUMBERLAND-SAGADAHOC-LINCOLN-KNOX-COASTAL WALDO-
NORTHERN COOS-SOUTHERN COOS-NORTHERN GRAFTON-NORTHERN CARROLL-
SOUTHERN GRAFTON-SOUTHERN CARROLL-SULLIVAN-MERRIMACK-BELKNAP-
STRAFFORD-CHESHIRE-EASTERN HILLSBOROUGH-INTERIOR ROCKINGHAM-
COASTAL ROCKINGHAM-WESTERN AND CENTRAL HILLSBOROUGH-
744 AM EDT MON JUL 18 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MAINE...SOUTH CENTRAL
MAINE...SOUTHWEST MAINE...WEST CENTRAL MAINE...WESTERN MAINE...NEW
HAMPSHIRE...CENTRAL NEW HAMPSHIRE...NORTHERN NEW HAMPSHIRE AND
SOUTHERN NEW HAMPSHIRE.

.DAY ONE...TODAY AND TONIGHT.

THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AND CONTINUE
THROUGH THE EVENING. A FEW STORMS MAY BECOME SEVERE WITH DAMAGING
WINDS...HEAVY RAIN...AND POSSIBLY HAIL.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

HEAT INDICES WILL REACH THE LOWER AND MID 90S FRIDAY THROUGH
SUNDAY ACROSS MUCH OF THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO CALL OR RADIO IN SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

ANZ150>154-191145-
COASTAL WATERS FROM STONINGTON, ME TO PORT CLYDE, ME OUT 25 NM-
PENOBSCOT BAY-
COASTAL WATERS FROM PORT CLYDE, ME TO CAPE ELIZABETH, ME OUT 25 NM-
CASCO BAY-
COASTAL WATERS FROM CAPE ELIZABETH, ME TO MERRIMACK RIVER, MA OUT
25 NM-
744 AM EDT MON JUL 18 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 18, 5:42 PM EDT, 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
542 PM EDT MON JUL 18 2016

MEZ008-013-182215-
NORTHERN FRANKLIN ME-SOUTHERN FRANKLIN ME-
542 PM EDT MON JUL 18 2016

THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  NORTHERN FRANKLIN COUNTY IN MAINE
  SOUTHERN FRANKLIN COUNTY IN MAINE

* UNTIL 615 PM EDT

* AT 542 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A STRONG THUNDERSTORM 10 MILES NORTH OF ANDOVER...MOVING TO THE
  EAST AT 50 MPH.

* PEA SIZE HAIL AND WIND GUSTS OF 35 TO 45 MPH ARE EXPECTED WITH THIS
  STORM.

* LOCATIONS IMPACTED INCLUDE...
  FARMINGTON...
  PHILLIPS...
  WELD...
  STRONG...
  AND AVON.

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.

&&

LAT...LON 4495 7016 4463 7015 4467 7053 4480 7062
      4473 7077 4487 7078
TIME...MOT...LOC 2140Z 268DEG 46KT 4479 7070

KIMBLE

Local storm report, Jul 18, 5:44 PM EDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
544 PM EDT MON JUL 18 2016

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

0318 PM     HAIL             7 WNW LITTLETON         44.34N  71.92W
07/18/2016  E0.88 INCH       GRAFTON            NH   PUBLIC

&&

EVENT NUMBER GYX1602135

ARNOTT

Local storm report, Jul 18, 5:47 PM EDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
547 PM EDT MON JUL 18 2016

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

0314 PM     TSTM WND DMG     MANCHESTER              42.98N  71.44W
07/18/2016                   HILLSBOROUGH       NH   BROADCAST MEDIA

            TREES DOWN ON SOMERVILLE... CLAY... JEWETT... AND
            AMHERST STREETS.

&&

EVENT NUMBER GYX1602136

TFH

Local storm report, Jul 18, 5:50 PM EDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
550 PM EDT MON JUL 18 2016

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

0320 PM     TSTM WND DMG     BEDFORD                 42.95N  71.52W
07/18/2016                   HILLSBOROUGH       NH   BROADCAST MEDIA

            LARGE TREES DOWN ON ROUTE 101

&&

EVENT NUMBER GYX1602137

TFH

Local storm report, Jul 18, 5:52 PM EDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
552 PM EDT MON JUL 18 2016

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

0249 PM     TSTM WND DMG     RINDGE                  42.75N  72.01W
07/18/2016                   CHESHIRE           NH   EMERGENCY MNGR

            TREES DOWN THROUGHOUT TOWN.

&&

EVENT NUMBER GYX1602138

JENSENIUS

Local storm report, Jul 18, 5:55 PM EDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
555 PM EDT MON JUL 18 2016

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

0412 PM     TSTM WND DMG     WINDHAM                 43.79N  70.41W
07/18/2016                   CUMBERLAND         ME   LAW ENFORCEMENT

            TWO SMALL TRESS ON ROADS. TIME ESTIMATED BY RADAR.

&&

EVENT NUMBER GYX1602139

ARNOTT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 12:16 PM EDT	Severe Thunderstorm Warning	GYX	Coos	44 min
Jul 18, 12:55 PM EDT	Severe Thunderstorm Warning	GYX	Coos	65 min
Jul 18, 1:06 PM EDT	Severe Thunderstorm Warning	GYX	Coos	39 min
Jul 18, 1:28 PM EDT	Tornado Warning	GYX	Coos	32 min
Jul 18, 2:28 PM EDT	Severe Thunderstorm Warning	GYX	Cheshire	35 min
Jul 18, 2:37 PM EDT	Special Weather Statement	GYX	Carroll	38 min
Jul 18, 2:48 PM EDT	Severe Thunderstorm Warning	GYX	Hillsborough	45 min
Jul 18, 2:54 PM EDT	Severe Thunderstorm Warning	GYX	Carroll	38 min
Jul 18, 3:03 PM EDT	Severe Thunderstorm Warning	GYX	Coos, Grafton	57 min
Jul 18, 3:41 PM EDT	Severe Thunderstorm Warning	GYX	Rockingham	26 min
Jul 18, 4:03 PM EDT	Special Weather Statement	GYX	Coos	27 min
Jul 18, 4:27 PM EDT	Special Weather Statement	GYX	Coos	33 min
Jul 18, 6:25 PM EDT	Severe Thunderstorm Warning	GYX	Grafton	65 min
Jul 18, 7:28 PM EDT	Special Weather Statement	GYX	Carroll	32 min
Jul 18, 7:48 PM EDT	Severe Thunderstorm Warning	GYX	Carroll	27 min

Nearby

Severe Thunderstorm Warnings in New Hampshire, 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.