Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 129, NWS Gray, ME
NWS Gray, ME issued this severe thunderstorm warning at Jul 18, 2008, 4:58 PM EDT for 4 counties in 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 counties it named.
The facts
- Issued
- Jul 18, 2008, 4:58 PM EDT (20:58 UTC)
- Expired
- Jul 18, 2008, 5:45 PM EDT
- In force
- 47 min
- Issued by
- NWS Gray, ME
- Area
- Storm-based polygon
Counties Belknap County, NH, Merrimack County, NH, Rockingham County, NH, Strafford County, NH
The radar
The Portland,ME radar (KGYX), 109 km from the middle of the area, began a volume at 20:58 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 18, 1:24 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Gray, ME (KGYX), launched 12:00Z, 9.0 hours before the alert went out and 108 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.
- Mixed-layer CAPE
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1449 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, 3:46 PM EDT, 1 hour 12 minutes earlier.
Area forecast discussion, Jul 18, 3:46 PM EDT, 1 hour 12 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 346 PM EDT FRI JUL 18 2008 .SYNOPSIS... A FRONTAL BOUNDARY WILL REMAIN NEARLY STATIONARY ACROSS EXTREME NORTHERN NEW ENGLAND TONIGHT AND SATURDAY. THIS FRONT WILL BEGIN TO MOVE SLOWLY SOUTH SUNDAY AS LOW PRESSURE DEVELOPS IN THE MIDWEST. LOW PRESSURE WILL MOVE THROUGH THE REGION MONDAY. && .NEAR TERM /UNTIL 6 AM SATURDAY MORNING/... STRONG TO SEVERE TSTMS WILL CONT INTO EARLY THIS EVENING THEN A CHC OF SHRA AND TSRA WILL LINGER THRU THE NGT AS PATCHY F FORMS. WILL USE GFS40 AND MAV MOS. SEVERE TSTM WATCH IN EFFECT THRU 8 PM. && .SHORT TERM /6 AM SATURDAY MORNING THROUGH 6 PM SATURDAY/... A FRONTAL BOUNDARY ACROSS FAR NRN NEW ENGLAND WILL KEEP THE FA IN VERY WARM AND HUMID WX ON SATURDAY WITH A CHC OF SHRA AND TSRA. SOME TSTMS MAY BE STRONG TO PSBLY SEVERE. WITH SEVERE WEATHER OCCURRING NOW WILL NOT HIGHLIGHT IN THE ZONES FOR TOMORROW AT THIS TIME. USED GFS40 AND MAV MOS. && .LONG TERM /SATURDAY NIGHT THROUGH FRIDAY/... MODELS ARE SOMEWHAT SIMILAR THROUGH THE PERIOD. THE FORECAST CHALLENGE IS THE TRACK OF A COUPLE OF SFC LOWS THAT WILL AFFECT THE REGION LATE IN THE WEEKEND AND EARLY NEXT WEEK. THE GFS WANTS TO RUN THE LOW JUST TO OUR SOUTH PRODUCING COPIOUS AMOUNTS OF RAINFALL WITH TROPICAL MOISTURE GETTING INVOLVED WITH THE SYSTEM. THE NAM IS FARTHER NORTH AND KEEPS THE TROPICAL MOISTURE TO THE SOUTH. THE 12Z ECMWF IS VERY SIMILAR TO THE GFS. I LEANED TOWARD A BLEND OF THESE 2 MODELS. PRECIPITATION COULD BE HEAVY LATE SUNDAY AND MONDAY. WILL HAVE TO WATCH THIS CAREFULLY && .AVIATION /20Z FRIDAY THROUGH WEDNESDAY/... SHORT TERM /THROUGH SATURDAY/...VFR EXCEPT IN ANY STRONG TO PSBLY SEVERE TSTMS INTO THIS EVENING OR IN ANY LATE NGT VALLEY F. CHC FOR STRONG TSTMS AGAIN SATURDAY. LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... EXPECT MVFR/IFR CONDITIONS SAT NGT IN SHOWERS AND FOG. SUNDAY SHOULD SEE CONDITIONS IMPROVE TO VFR EXCEPT IN SHOWERS AND THUNDERSTORMS. SUNDAY NIGHT CONDITIONS SHOULD AGAIN LWR TO MVFR/IFR AND THIS WILL LIKELY LAST THROUGH EARLY MONDAY NIGHT. VFR EXPECT TUESDAY AND WEDNESDAY. && .MARINE... SHORT TERM /THROUGH SATURDAY/...WINDS AND SEAS WILL STAY BLO SCA LVLS THOUGH SWELLS WILL BE CLOSE TO 5 FT THRU PART OF TNGT DUE TO A SE SWELL FROM TROPICAL STORM BERTHA. LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... SMALL CRAFT CRITERIA MAY BE MET SUNDAY NGT THROUGH TUES AM. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...NONE. && SYNOPSIS... NEAR TERM... SHORT TERM... LONG TERM... AVIATION... MARINE...
Hazardous weather outlook, Jul 18, 1:30 PM EDT, 3 hours 28 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAY ME 130 PM EDT FRI JUL 18 2008 MEZ007-012-018>020-023>025-NHZ001>010-013-014-191730- NORTHERN OXFORD-SOUTHERN OXFORD-INTERIOR YORK-INTERIOR CUMBERLAND- ANDROSCOGGIN-COASTAL YORK-COASTAL CUMBERLAND-SAGADAHOC-NORTHERN COOS- SOUTHERN COOS-NORTHERN GRAFTON-NORTHERN CARROLL-SOUTHERN GRAFTON- SOUTHERN CARROLL-SULLIVAN-MERRIMACK-BELKNAP-STRAFFORD- INTERIOR ROCKINGHAM-COASTAL ROCKINGHAM- 130 PM EDT FRI JUL 18 2008 ...SEVERE THUNDERSTORM WATCH 698 IN EFFECT UNTIL 8 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...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO CALL OR RADIO IN SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MEZ008-009-013-014-021-022-026>028-191730- NORTHERN FRANKLIN-CENTRAL SOMERSET-SOUTHERN FRANKLIN- SOUTHERN SOMERSET-KENNEBEC-INTERIOR WALDO-LINCOLN-KNOX-COASTAL WALDO- 130 PM EDT FRI JUL 18 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MAINE. .DAY ONE...THIS AFTERNOON AND TONIGHT THE NATIONAL WEATHER SERVICE STORM PREDICTION CENTER FORECASTS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS NORTHERN NEW ENGLAND AND ASSOCIATED COASTAL WATERS TODAY AND TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO CALL OR RADIO IN SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. ANZ150-151-191730- STONINGTON ME TO PORT CLYDE ME OUT TO 25 NM-PENOBSCOT BAY- 130 PM EDT FRI JUL 18 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PENOBSCOT BAY AND THE COASTAL WATERS FROM STONINGTON ME TO PORT CLYDE ME. .DAY ONE...THIS AFTERNOON AND TONIGHT THE NATIONAL WEATHER SERVICE STORM PREDICTION CENTER FORECASTS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS NORTHERN NEW ENGLAND AND ASSOCIATED COASTAL WATERS TODAY AND TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO CALL OR RADIO IN SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. ANZ152>154-191730- PORT CLYDE ME TO CAPE ELIZABETH ME OUT TO 25 NM-CASCO BAY- CAPE ELIZABETH ME TO MERRIMACK RIVER MA OUT TO 25 NM- 130 PM EDT FRI JUL 18 2008 ...SEVERE THUNDERSTORM WATCH 698 IN EFFECT UNTIL 8 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CASCO BAY...THE COASTAL WATERS FROM CAPE ELIZABETH ME TO MERRIMACK RIVER MA AND THE COASTAL WATERS FROM PORT CLYDE ME TO CAPE ELIZABETH ME. .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...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO CALL OR RADIO IN SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
In the hours before
Local storm report, Jul 18, 4:44 PM EDT, 14 minutes before
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</html>The office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 12:26 PM EDT | Severe Thunderstorm Warning | GYX | Cumberland, Oxford | 49 min |
| Jul 18, 1:10 PM EDT | Severe Thunderstorm Warning | GYX | Cumberland, York | 50 min |
| Jul 18, 1:23 PM EDT | Special Marine Warning | GYX | 97 min | |
| Jul 18, 1:53 PM EDT | Severe Thunderstorm Warning | GYX | Cumberland | 37 min |
| Jul 18, 1:58 PM EDT | Severe Thunderstorm Warning | GYX | Oxford | 47 min |
| Jul 18, 2:05 PM EDT | Severe Thunderstorm Warning | GYX | York | 40 min |
| Jul 18, 2:08 PM EDT | Severe Thunderstorm Warning | GYX | Cumberland, York | 37 min |
| Jul 18, 2:10 PM EDT | Special Marine Warning | GYX | 95 min | |
| Jul 18, 2:35 PM EDT | Severe Thunderstorm Warning | GYX | Cumberland, York | 55 min |
| Jul 18, 2:37 PM EDT | Severe Thunderstorm Warning | GYX | Cumberland, Oxford, York | 53 min |
| Jul 18, 3:18 PM EDT | Special Marine Warning | GYX | 57 min | |
| Jul 18, 4:11 PM EDT | Special Marine Warning | GYX | 64 min | |
| Jul 18, 4:48 PM EDT | Severe Thunderstorm Warning | GYX | Cumberland, Oxford, York | 42 min |
| Jul 18, 5:04 PM EDT | Severe Thunderstorm Warning | GYX | York | 41 min |
| Jul 18, 5:22 PM EDT | Severe Thunderstorm Warning | GYX | Cumberland, York | 53 min |
| Jul 18, 5:42 PM EDT | Severe Thunderstorm Warning | GYX | York | 48 min |
| Jul 18, 6:06 PM EDT | Special Marine Warning | GYX | 54 min | |
| Jul 18, 6:13 PM EDT | Tornado Warning | GYX | York | 21 min |
| Jul 18, 6:24 PM EDT | Special Marine Warning | GYX | 66 min | |
| Jul 18, 6:34 PM EDT | Severe Thunderstorm Warning | GYX | York | 56 min |
| Jul 18, 7:01 PM EDT | Special Marine Warning | GYX | 15 min | |
| Jul 18, 7:14 PM EDT | Special Marine Warning | GYX | 61 min | |
| Jul 18, 11:11 AM EDT | Severe Thunderstorm Warning | GYX | Carroll, Coos, Grafton | 34 min |
| Jul 18, 1:35 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton | 40 min |
| Jul 18, 2:26 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton, Strafford | 34 min |
| Jul 18, 3:11 PM EDT | Severe Thunderstorm Warning | GYX | Grafton | 49 min |
| Jul 18, 4:00 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Grafton | 45 min |
| Jul 18, 4:11 PM EDT | Severe Thunderstorm Warning | GYX | Grafton | 49 min |
| Jul 18, 4:38 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Merrimack | 52 min |
| Jul 18, 4:52 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Merrimack, Sullivan | 38 min |
| Jul 18, 5:35 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack | 40 min |
| Jul 18, 5:39 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Merrimack, Sullivan | 51 min |
| Jul 18, 5:48 PM EDT | Severe Thunderstorm Warning | GYX | Strafford | 42 min |
| Jul 18, 6:57 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 33 min |
Nearby
Severe Thunderstorm Warnings in New Hampshire, 2008Every severe thunderstorm warning in 2008
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.