Hail, Rockingham
- When
- July 18, 3:10 PM EST to 3:13 PM EST
- Where
- Rockingham County, Deerfield
- Measured
- 1.75 in hail
- Reported by
- Broadcast Media
- Coordinates
- 43.150, -71.220
A severe thunderstorm produced golf ball-sized hail in Deerfield.
Hail and Damaging Winds in New Hampshire, July 18, 2013
A cold front was slowly sagging south through the forecast area on the afternoon of July 18th. The air mass ahead of this boundary was very hot and moist with precipitable water values approaching 2 inches.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 3
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
What happened
The episode as NWS GYX wrote it up.
A cold front was slowly sagging south through the forecast area on the afternoon of July 18th. The air mass ahead of this boundary was very hot and moist with precipitable water values approaching 2 inches. Falling freezing levels and increasing shear combined to produce large hail and damaging winds with these storms.
What forecasters said that day
The local office's own words before the first event, 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 the first event at Jul 18, 11:42 AM EST, 3 hours 28 minutes earlier.
Area forecast discussion, Jul 18, 11:42 AM EST, 3 hours 28 minutes before
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</html>Hazardous weather outlook, Jul 18, 2:40 PM EST, 30 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAY ME 340 PM EDT THU JUL 18 2013 MEZ007>009-013-014-022-025>028-NHZ001>005-007-191000- NORTHERN OXFORD-NORTHERN FRANKLIN-CENTRAL SOMERSET-SOUTHERN FRANKLIN- SOUTHERN SOMERSET-INTERIOR WALDO-SAGADAHOC-LINCOLN-KNOX- COASTAL WALDO-NORTHERN COOS-SOUTHERN COOS-NORTHERN GRAFTON- NORTHERN CARROLL-SOUTHERN GRAFTON-SULLIVAN- 340 PM EDT THU JUL 18 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MAINE...CENTRAL NEW HAMPSHIRE AND NORTHERN NEW HAMPSHIRE. .DAY ONE...THIS AFTERNOON AND TONIGHT. SCATTERED SHOWERS AND THUNDERSTORMS COULD PRODUCE VERY HEAVY RAINFALL AND STRONG GUSTY WINDS THROUGH EARLY THIS EVENING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. THE COMBINATION OF HIGHS ABOVE 90 DEGREES ON FRIDAY AND HIGH HUMIDITY LEVELS COULD PRODUCE HEAT INDICIES OF 95 TO 100 ON FRIDAY. STRONG STORMS ARE POSSIBLE ON FRIDAY...BUT WILL BE A LARGER THREAT ON SATURDAY AS A COLD FRONT DROPS SOUTH THROUGH THE REGION. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED. MEZ012-018>021-023-024-NHZ006-008>010-013-014-191000- SOUTHERN OXFORD-INTERIOR YORK-INTERIOR CUMBERLAND-ANDROSCOGGIN- KENNEBEC-COASTAL YORK-COASTAL CUMBERLAND-SOUTHERN CARROLL-MERRIMACK- BELKNAP-STRAFFORD-INTERIOR ROCKINGHAM-COASTAL ROCKINGHAM- 340 PM EDT THU JUL 18 2013 ...HEAT ADVISORY IN EFFECT FROM 10 AM TO 7 PM EDT FRIDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MAINE...CENTRAL NEW HAMPSHIRE...NORTHERN NEW HAMPSHIRE AND SOUTHEASTERN NEW HAMPSHIRE. .DAY ONE...THIS AFTERNOON AND TONIGHT. SCATTERED SHOWERS AND THUNDERSTORMS COULD PRODUCE VERY HEAVY RAINFALL AND STRONG GUSTY WINDS THROUGH EARLY THIS EVENING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. HEAT ADVISORY. THE COMBINATION OF HIGHS IN THE MID TO UPPER 90S AND HIGH HUMIDITY LEVELS COULD PRODUCE HEAT INDICIES IN EXCESS OF 100 ON FRIDAY IN SOUTHERN NEW HAMPSHIRE AND SOUTHWEST MAINE. STRONG STORMS ARE POSSIBLE ON FRIDAY...BUT WILL BE LARGER THREAT ON SATURDAY AS A COLD FRONT DROPS SOUTH THROUGH THE REGION. STRONG STORMS ARE POSSIBLE ON FRIDAY...BUT WILL BE A LARGER THREAT ON SATURDAY AS A COLD FRONT DROPS SOUTH THROUGH THE REGION. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED. ANZ150>154-191000- STONINGTON ME TO PORT CLYDE ME OUT TO 25 NM-PENOBSCOT BAY- PORT CLYDE ME TO CAPE ELIZABETH ME OUT TO 25 NM-CASCO BAY- CAPE ELIZABETH ME TO MERRIMACK RIVER MA OUT TO 25 NM- 340 PM EDT THU JUL 18 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CASCO BAY...PENOBSCOT BAY...THE COASTAL WATERS FROM CAPE ELIZABETH ME TO MERRIMACK RIVER MA...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. SCATTERED THUNDERSTORMS COULD PRODUCE STRONG GUSTY WINDS THIS AFTERNOON INTO THIS EVENING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. STRONG THUNDERSTORMS ARE POSSIBLE AGAIN ON FRIDAY AFTERNOON...WITH A BETTER CHANCE ON SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED.
In the hours before
Special weather statement, Jul 18, 1:25 PM EST, 1 hour 45 minutes before
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</html>Special weather statement, Jul 18, 1:45 PM EST, 1 hour 25 minutes before
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</html>The radar
The Portland,ME radar (KGYX), 113 km away, was scanning. The volume nearest the first event began at 20:08 UTC.
Event by event
2 thunderstorm wind, 1 hail. Local standard time, as filed.
Thunderstorm Wind, Rockingham
- When
- July 18, 3:10 PM EST to 3:14 PM EST
- Where
- Rockingham County, Deerfield
- Measured
- 50 kt (58 mph) estimated gust
- Reported by
- Law Enforcement
- Coordinates
- 43.150, -71.220
A severe thunderstorm produced multiple reports of trees and wires down in Deerfield.
Thunderstorm Wind, Rockingham
- When
- July 18, 3:24 PM EST to 3:28 PM EST
- Where
- Rockingham County, 0.69 mi N of Raymond
- Measured
- 50 kt (58 mph) estimated gust
- Reported by
- Public
- Coordinates
- 43.040, -71.180
A severe thunderstorm downed several trees and wires damaging two cars in Raymond.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Heat in Nevada, July 18 to 20, 2013
- Heat in Maryland, July 18, 2013
- Lightning Strike in Michigan, July 18, 2013
- Flash Flooding and Lightning Strikes in Colorado, July 18, 2013
- Hail and Damaging Winds in Michigan, July 18 to 19, 2013
- Flash Flood and Damaging Winds in Tennessee, July 18, 2013
- Flash Flooding and Debris Flows in Colorado, July 18, 2013
- Flash Flooding and Flooding in Puerto Rico, July 18, 2013
- Lightning Strike in Wisconsin, July 18, 2013
- Flash Flooding and Hail in Minnesota, July 18 to 19, 2013
- Flash Flood and Damaging Winds in Mississippi, July 18 to 20, 2013
- Damaging Winds in Kentucky, July 18, 2013
More
Every storm in New Hampshire in 2013Every state in 2013This day in weather historyWarnings in New Hampshire, July 2013
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 469456, 469457, 469458.