Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 29, NWS Gray, ME
NWS Gray, ME issued this severe thunderstorm warning at Aug 16, 2003, 4:32 PM EDT for Merrimack County, New Hampshire. It was in force for 58 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
- Aug 16, 2003, 4:32 PM EDT (20:32 UTC)
- Expired
- Aug 16, 2003, 5:30 PM EDT
- In force
- 58 min
- Issued by
- NWS Gray, ME
- Area
- Counties, with a storm outline in the text
County Merrimack County, NH
The radar
The Portland,ME radar (KGYX), 132 km from the middle of the area, began a volume at 20:33 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 nearest sounding before it
Gray, ME (KGYX), launched 12:00Z, 8.5 hours before the alert went out and 131 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1410 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KGYX 162032 CCA SVRGYX NHC013-162100- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING...CORRECTED NATIONAL WEATHER SERVICE GRAY ME 431 PM EDT SAT AUG 16 2003 THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MERRIMACK COUNTY IN CENTRAL NEW HAMPSHIRE THIS INCLUDES THE CITIES OF...LACONIA...HENNIKER...FRANKLIN... CONCORD * UNTIL 530 PM EDT * AT 428 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 5 MILES WEST OF FRANKLIN TO BRADFORD...OR FROM 5 MILES WEST OF FRANKLIN TO 8 MILES SOUTH OF NEW LONDON...MOVING EAST AT 20 MPH. * SEVERE THUNDERSTORMS WILL BE NEAR... OVER FRANKLIN AT 440 PM EDT OVER HENNIKER...WARNER AT 450 PM EDT 2 MILES NORTHWEST OF CANTERBURY...7 MILES NORTH OF HOPKINTON...8 MILES NORTHWEST OF LOUDON AT 500 PM EDT REPORT WIND DAMAGE OR LARGE HAIL TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN GRAY MAINE. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 PM EDT SATURDAY AFTERNOON FOR SOUTHWESTERN MAINE. LAT...LON 4356 7188 4322 7201 4304 7146 4330 7128 $$ CORRECTED EXPIRATION TIME
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 Aug 16, 1:35 PM EDT, 2 hours 57 minutes earlier.
Area forecast discussion, Aug 16, 1:35 PM EDT, 2 hours 57 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 135 PM EDT SAT AUG 16 2003 ...PUBLIC ZONE FORECASTS... COLD FRONT WILL MOVE SOUTHEAST ACROSS THE REGION AND OFF THE COAST TONIGHT. AHEAD OF THE FRONT WILL INCLUDE A FORECAST PERIOD THROUGH THIS AFTERNOON TO COVER THE STRONG /POSSIBLY SEVERE/ CONVECTION AND SEVERE THUNDERSTORM WATCH NOW IN EFFECT. THERE COULD BE A LEFTOVER SHOWER EARLY TONIGHT...OTHERWISE QUITE A BIT OF LEFTOVER CLOUDS OVERNIGHT. WITH LIGHT NORTHERLY WINDS AND SOME DRYING OVERNIGHT DONT EXPECT ENOUGH FOG TO PUT INTO THE ZONES. ANY SIGNIFICANT CLEARING LATER TONIGHT WOULD CHANGE THAT AND ALLOW SOME GROUND FOG TO FORM. ON SUNDAY...GFS MODEL NOW AGREEING BETTER WITH NGM/ETA SOLUTIONS. WILL KEEP A CHANCE OF AFTERNOON SHOWERS AND THUNDERSTORMS DUE TO LEFTOVER MOISTURE AND INSTABILITY...UPPER LEVEL TROUGH AND SOME SUNSINE. GUIDANCE HINTING AT THIS POTENTIAL VIA PROBABILITY OF PRECIPITATION AND THUNDERSTORM PROBABILITY VALUES IN FWC/ETC.. HIGH AND LOW TEMPERATURES AND POPS CLOSE TO THE MAV/MET/FWC NUMBERS. THE EXTENDED FORECAST BASED ON THE MRF AND MEX GUIDANCE. ...COASTAL WATERS FORECAST... NEAR SMALL CRAFT ADVISORY WINDS AND SEAS THROUGH EARLY TONIGHT. OTHERWISE WINDS AND SEAS WILL REMAIN BELOW SMALL CRAFT ADVISORY CRITERIA THROUGH THURSDAY. SUNDAY NIGHT...WILL GO A BIT ABOVE GUIDANCE ON WINDS AND WAVES BEHIND THE DEPARTING SURFACE LOW AND FRONT. FCSTID = 2 .GYX... ME...SVR TSTM WTCH NMBR 861 TIL 5 PM. NH...NONE. SJC
Hazardous weather outlook, Aug 16, 11:08 AM EDT, 5 hours 24 minutes before
MEZ007>009-012>014-018>028-NHZ001>010-013-014-161700- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAY ME 1108 AM EDT SAT AUG 16 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND SOUTHERN MAINE AND NORTHERN...CENTRAL AND SOUTHEAST NEW HAMPSHIRE. .DAY ONE...TODAY A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED UNTIL 500 PM EDT FOR THE FOLLOWING COUNTIES IN WESTERN MAINE... ANDROSCOGGIN...CUMBERLAND...SOUTHERN FRANKLIN...KENNEBEC...KNOX... LINCOLN...SOUTHERN OXFORD...SAGADAHOC...SOUTHERN SOMERSET...WALDO AND YORK. IN ADDITION...THE SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE COASTAL WATERS OF WESTERN MAINE. ACROSS CENTRAL AND SOUTHEAST NEW HAMPSHIRE...THUNDERSTORMS MAY PRODUCE FREQUENT LIGHTNING...HEAVY RAIN...GUSTY WINDS AND HAIL THIS AFTERNOON...MAINLY DURING THE MID TO LATE AFTERNOON HOURS. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE LIKELY BE NEEDED...ESPECIALLY IF SEVERE THUNDERSTORMS WARNINGS ARE ISSUED.
In the hours before
Special weather statement, Aug 16, 11:25 AM EDT, 5 hours 7 minutes before
MEZ012>014-018>028-NHZ003>010-013-014-162200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAY ME 1125 AM EDT SAT AUG 16 2003 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WESTERN MAINE AND THE ADJACENT COASTAL WATERS UNTIL 500 PM EDT... THE SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES IN WESTERN MAINE... ANDROSCOGGIN...CUMBERLAND...SOUTHERN FRANKLIN...KENNEBEC...KNOX... LINCOLN...SOUTHERN OXFORD...SAGADAHOC...SOUTHERN SOMERSET...WALDO AND YORK. THE SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT FOR THE ADJACENT COASTAL WATERS. SCATTERED THUNDERSTORMS COULD PRODUCE DAMAGING WINDS...LARGE HAIL... FREQUENT LIGHTNING AND HEAVY RAIN ACROSS THE WATCH AREA. THE BEST CHANCE FOR SEVERE THUNDERSTORMS WILL BE THROUGH 500 PM. IN ADDITION...SCATTERED THUNDERSTORMS COULD PRODUCE FREQUENT LIGHTNING...HEAVY RAIN...GUSTY WINDS AND HAIL ACROSS CENTRAL AND SOUTHEAST NEW HAMPSHIRE. THE BEST CHANCE FOR STRONG THUNDERSTORMS WILL BE DURING THE MID TO LATE AFTERNOON. PEOPLE LIVING OR VACATIONING IN THESE AREAS SHOULD KEEP AN EYE ON THE SKY AND BE PREPARED TO TAKE COVER IF THUNDERSTORMS MOVE INTO THEIR AREA. BOATERS SHOULD BE PREPARED TO HEAD TO SAFE HARBOR BEFORE THUNDERSTORMS ARRIVE. CONTINUE TO MONITOR NOAA WEATHER RADIO...OR YOUR LOCAL NEWS STATION ...FOR ADDITIONAL WEATHER INFORMATION OR POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT HTTP://WWW.NWS.NOAA.GOV/ER/GYX SJC/HAYES
Special weather statement, Aug 16, 1:34 PM EDT, 2 hours 58 minutes before
NHZ003-005-161930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 134 PM EDT SAT AUG 16 2003 ...A STRONG THUNDERSTORM WILL AFFECT GRAFTON COUNTY IN CENTRAL NEW HAMPSHIRE... LOOK FOR A STRONG THUNDERSTORM TO ENTER GRAFTON COUNTY BETWEEN HAVERHILL AND LYME AFTER 140 PM. AS THE STORM MOVES EAST AND AFFECTS PIERMONT...WARREN...WENTWORTH AND RUMNEY THROUGH 215 PM... IT IS CAPABLE OF PRODUCING WIND GUSTS TO 45 MPH...PEA TO MARBLE SIZED HAIL...VERY HEAVY RAINS AND FREQUENT LIGHTNING. IF YOU ARE IN GRAFTON COUNTY...BE ON THE ALERT FOR THREATENING WEATHER AND BE PREPARED TO MOVE TO SHELTER AS THIS STORM APPROACHES. HAYES
Special weather statement, Aug 16, 3:30 PM EDT, 1 hour 2 minutes before
MEZ018>021-023>025-NHZ010-162130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 330 PM EDT SAT AUG 16 2003 ...A LINE OF STRONG THUNDERSTORMS WILL AFFECT PORTIONS OF SOUTHEAST NEW HAMPSHIRE AND SOUTHWEST MAINE THROUGH 445 PM... AT 330 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A DEVELOPING LINE OF STRONG THUNDERSTORMS STRETCHING FROM NEAR LIVERMORE FALLS IN ANDROSCOGGIN COUNTY SOUTHWEST TO NEAR WOLFEBORO IN CARROLL COUNTY NEW HAMPSHIRE. AS THESE STORMS MOVE ACROSS SOUTHWEST MAINE...THEY WILL PRODUCE WIND GUSTS TO 50 MPH...PEA TO MARBLE SIZED AND FREQUENT LIGHTNING. IN ADDITION...UP TO THREE-QUARTERS OF AN INCH OF RAIN IN LESS THAN 30 MINUTES COULD RESULT IN STREET FLOODING AND FLOODING OF POOR DRAINAGE. IF YOU ARE IN SOUTHWEST MAINE...BE ON THE ALERT FOR THREATENING WEATHER AND SEEK SHELTER AS THUNDERSTORMS APPROACH. HAYES
Special weather statement, Aug 16, 4:06 PM EDT, 26 minutes before
NHZ007>009-162200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 406 PM EDT SAT AUG 16 2003 ...STRONG THUNDERSTORMS ARE MOVING ACROSS SOUTHERN NEW HAMPSHIRE... AT 405 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A DEVELOP LINE OF STRONG THUNDERSTORMS STRETCHING FROM NEAR GILMANTON IN BELKNAP COUNTY SOUTHWEST TO NEAR CHARLESTOWN IN SULLIVAN COUNTY. AS THESE STORMS MOVE ACROSS THE AREA...THEY WILL PRODUCE WIND GUSTS TO NEAR 50 MPH...PEA TO MARBLE SIZED HAIL AND FREQUENT LIGHTNING. IN ADDITION...UP TO THREE-QUARTERS OF AN INCH OF RAIN IN LESS THAN 30 MINUTES. THIS COULD RESULT IN STREET FLOODING AND POOR DRAINAGE FLOODING. IF YOU ARE IN SOUTHERN NEW HAMPSHIRE...BE ON THE ALERT FOR THREATENING WEATHER AND SEEK SHELTER AS THUNDERSTORMS ARRIVE. HAYES
The office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 4:00 PM EDT | Severe Thunderstorm Warning | GYX | Strafford | 60 min |
| Aug 16, 4:30 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack | 30 min |
Nearby
Severe Thunderstorm Warnings in New Hampshire, 2003Every severe thunderstorm warning in 2003
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.