Alert archive / Maine / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 129, NWS Gray, ME
NWS Gray, ME issued this severe thunderstorm warning at Jul 15, 2007, 1:32 PM EDT for York County, Maine. 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 counties it named.
The facts
- Issued
- Jul 15, 2007, 1:32 PM EDT (17:32 UTC)
- Expired
- Jul 15, 2007, 2:30 PM EDT
- In force
- 58 min
- Issued by
- NWS Gray, ME
- Area
- Counties, with a storm outline in the text
County York County, ME
The radar
The Portland,ME radar (KGYX), 61 km from the middle of the area, began a volume at 17:33 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.
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 15, 12:01 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Gray, ME (KGYX), launched 12:00Z, 5.5 hours before the alert went out and 61 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
- 1159 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 135 m²/s²
- 0-3 km storm-relative helicity
- 244 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 15, 10:13 AM EDT, 3 hours 19 minutes earlier.
Area forecast discussion, Jul 15, 10:13 AM EDT, 3 hours 19 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 1013 AM EDT SUN JUL 15 2007 .SYNOPSIS... COLD FRONT WILL CROSS THE REGION THIS AFTERNOON/EVENING... FOLLOWED BY A WEAK AREA OF HIGH PRESSURE LATER TONIGHT AND MONDAY. ANOTHER BOUNDARY WILL TRANSIT THE REGION MONDAY NIGHT... THOUGH MODELS NOT IN AGREEMENT ABOUT POSITION/TIMING. PATTERN OF WEAK DISTURBANCES MOVING THROUGH REGION IN FAST FLOW CONTINUES INTO THE WEEKEND. THERE ALSO CONTINUES TO BE MUCH UNCERTAINTY IN THE TIMING AND LOCATION OF THESE SYSTEMS. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... THE FORECAST PROBLEM FOR TODAY WILL BE THUNDERSTORMS. THE LOW CLOUDS AND FOG IS LIFTING...ALLOWING CLEARING TO OCCUR ACROSS SOUTHEAST NEW HAMPSHIRE AND SOUTHWEST MAINE. AN INITIAL LINE OF CONVECTIVE LOOKING RAIN IS CROSSING NORTHERN AND CENTRAL NEW HAMPSHIRE...WITH DEEPER CLOUDS ACROSS THE MOUNTAINS. IT APPEARS AS THOUGH THE MOUNTAINS WILL STAY IN THE FRONTAL CLOUD BAND AREA TODAY...AND THE CONVECTIVE POTENTIAL HERE IS SOMEWHAT LIMITED. FURTHER SOUTH...AFTER THE PASSAGE OF THE INITIAL RAIN BAND...THE AIRMASS WILL GET A CHANCE TO DESTABILIZE AGAIN. THIS SHOULD ALLOW A MODERATE UNSTABLE AIRMASS TO MATERIALIZE...WITH A GOOD SHEAR PROFILE. THIS AREA SHOULD EVENTUALLY COVER THE FOOTHILLS AND INTERIOR PORTIONS OF WESTERN MAINE AND INTERIOR NEW HAMPSHIRE THIS AFTERNOON. MODEL SOUNDINGS SHOW LITTLE IN THE WAY OF CAPPING AND A GOOD WIND PROFILE WITH TURNING IN THE LOWER LEVELS. THE INSTABILITY MAY NOT BE PRESENT FOR SUPER CELL DEVELOPMENT...BUT MULTIPLE STRUCTURE IS LIKELY WITH LINE SEGMENTS AND BOW STRUCTURES CAPABLE OF PRODUCING WIND DAMAGE. THE WORDING FOR THESE AREAS HAS BEEN ENHANCED TO INCLUDE DAMAGING WINDS. CLOSER TO THE COAST...THE AIRMASS LOOKS CAPPED IN THE LOWER LEVELS (AS SEEN ON THE GYX 12Z SOUNDING). IT APPEARS TO BE DUE PRIMARILY TO THE MARINE LAYER IN PLACE THIS MORNING. THIS COULD LIMIT THE CONVECTIVE POTENTIAL TO SOME DEGREE...AND MODEL SOUNDINGS SHOW THIS FEATURE PERSISTING INTO THE AFTERNOON. WILL CONTINUE WITH THE PREVIOUS ENHANCED WORDING IN THESE AREAS. THE CONVECTION SHOULD BE LIMITED THIS MORNING...INCREASING THIS AFTERNOON WITH INCREASED INSTABILITY. A SURFACE TROUGH ACROSS EAST CENTRAL NEW YORK WILL SERVE AS A FOCUS FOR THE CONVECTION... WITH THE PRIME THUNDERSTORM ACTIVITY EXPECTED BETWEEN 17Z AND 22Z THUS AFTERNOON. WIND DAMAGE IS THE MAIN THREAT...WITH LARGE HAIL PROBABLY BEING LIMITED TO SUPER CELLS OR MINI SUPER CELLS...AS THE WET BULB ZERO VALUES ARE HIGH. CLEANED UP THE SKY COVER FOR THIS AFTERNOON...BUT THE REMAINDER OF THE NEAR TERM REMAINS INTACT. && .SHORT TERM /6 PM THIS EVENING THROUGH 6 AM MONDAY/... FRONT MOVES OFFSHORE THIS EVENING FOLLOWED BY CLEARING TREND OVERNIGHT AS WEAK HIGH PRESSURE WORKS ITS WAY ACROSS FORECAST AREA. HAVE ONCE AGAIN USED BLEND OF CURRENT FORECAST/ MAV/MET DATA FOR TEMPERATURES AND BLEND OF CURRENT FORECAST/MAV DATA FOR POPS. && .LONG TERM /MONDAY THROUGH SATURDAY/... EASTERN TROUGH REMAINS IN TACT THROUGH THE LONG RANGE PERIOD. WEAK IMPULSES WILL CONTINUE TO CIRCULATE AROUND THIS TROUGH THROUGHOUT THE UPCOMING WEEK. A VERY WEAK FRONT PASSES THROUGH THE REGION FROM MONDAY AFTERNOON THROUGH MONDAY NIGHT. MODELS HAVE BEEN GETTING FASTER WITH THIS FRONT AND BECOMING WEAKER SO NOT EXPECTING MUCH IN THE WAY OF PRECIPITATION WITH THE FRONT. GFS SHOWING WEAK DISTURBANCE...RATHER SHEARED OUT...MOVING EAST ALONG FRONTAL BOUNDARY OVERNIGHT MONDAY NIGHT. GENERALLY EXPECTING ONLY WIDELY SCATTERED SHOWERS/ISOLATED TSTMS WITH FRONT WITH GREATEST THREAT DURING OVERNIGHT PERIOD IN SOUTHERN AREAS AS DISTURBANCE PASSES EAST. NAM QUITE DIFFERENT FROM OTHER MODELS...SO HAVE DISCOUNTED SIGNIFICANT PRECIP EVENT THAT IT IS ADVERTISING FOR TUESDAY. PREFER GFS SOLUTION WHICH BRINGS RIDGE ACROSS AREA DURING DAY. MODELS CONTINUE TO SHOW A SERIES OF DISTURBANCES MOVING AROUND THE UPPER TROUGH. TIMING AND IMPACT OF THESE DISTURBANCES IS UNCERTAIN AT THIS TIME. && .AVIATION /14Z SUNDAY THROUGH THURSDAY/... THE LAST OF THE MORNING STRATUS AND FOG IS LIFTING...AND SHOULD BE GONE BY 15Z. AFTER THIS...VFR CONDITIONS ARE EXPECTED TO PREVAIL. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED IN THE TERMINAL LOCATIONS...AND ARE BEING ADDED TO THE FORECAST AS NEEDED THIS MORNING. DEPENDING ON THE STRENGTH OF THE CONVECTION...MAY NEED TO ADD WIND INFORMATION WITH THUNDERSTORMS THIS AFTERNOON. BECOMING MOSTLY VFR TONIGHT THOUGH SOME MVFR IN PATCHY FOG EXPECTED. VFR CONDITIONS EXPECTED MONDAY...ALTHOUGH SOME MVFR CONDITIONS POSSIBLE IN WIDELY SCATTERED SHOWERS/ISOLATED THUNDERSTORMS MOVING SOUTHEAST FROM MOUNTAINS TO COAST FROM MONDAY AFTERNOON THROUGH TUESDAY MORNING. WEAK DISTURBANCES WILL IMPACT REGION PERIODICALLY THROUGH THURSDAY...HOWEVER STRENGTH AND TIMING OF THESE DISTURBANCES IS UNCERTAIN AT THIS TIME. & .MARINE... SHORT TERM...WINDS ARE ALREADY STARTING TO INCREASE WITH THE GRADIENT AND PASSAGE OF THE SURFACE WARM FRONT. THE DEPTH OF THE MIXED LAYER IS STILL VERY LOW...AND THE STRONGEST WINDS WILL BE OBSERVED AT THE C MAN STATIONS. WILL CONTINUE TO ADVERTISE NEAR SMALL CRAFT LEVEL WINDS FOR THIS AFTERNOON...UNTIL THE PASSAGE OF THE SURFACE TROUGH. SEAS SHOULD RESPOND FURTHER TO THE INCREASED FETCH...ATTAINING SMALL CRAFT LEVELS THIS AFTERNOON. THE SWELL SHOULD DROP BACK BELOW SMALL CRAFT LIMITS LATER TONIGHT OR MONDAY MORNING. LONG TERM...SEAS WILL GRADUALLY SUBSIDE MONDAY AS HIGH PRESSURE BUILDS ACROSS AREA. A SERIES OF WEAK DISTURBANCES WILL IMPACT REGION PERIODICALLY THROUGH THURSDAY...HOWEVER STRENGTH AND TIMING OF THESE DISTURBANCES IS UNCERTAIN AT THIS TIME. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...SMALL CRAFT ADVISORY UNTIL 8 AM EDT MONDAY FOR ANZ150. && NEAR TERM...HAYES AVIATION...HAYES MARINE...HAYES
Hazardous weather outlook, Jul 15, 6:01 AM EDT, 7 hours 31 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAY ME 601 AM EDT SUN JUL 15 2007 ANZ150-170-MEZ007>009-012>014-018>028-NHZ001>010-013-014-161015- STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 NM- WATERS FROM STONINGTON (DEER ISLE) ME TO MERRIMACK RIVER MA FROM 25 TO 40 NM-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-INTERIOR ROCKINGHAM-COASTAL ROCKINGHAM- 601 AM EDT SUN JUL 15 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR...WESTERN MAINE...CENTRAL NEW HAMPSHIRE...NORTHERN NEW HAMPSHIRE...SOUTHEASTERN NEW HAMPSHIRE AND THE COASTAL WATERS FROM STONINGTON ME TO THE MERRIMACK RIVER MA. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT RISK OF STRONG TO SEVERE THUNDERSTORMS THIS AFTERNOON AS A FRONTAL BOUNDARY MOVES THROUGH THE REGION. THE GREATEST THREAT WILL BE DAMAGING WINDS. .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, Jul 15, 10:38 AM EDT, 2 hours 54 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 1038 AM EDT SUN JUL 15 2007 MEZ012-018-019-NHZ006-009-151545- BELKNAP-INTERIOR CUMBERLAND-INTERIOR YORK-SOUTHERN CARROLL-SOUTHERN OXFORD- 1038 AM EDT SUN JUL 15 2007 ...STRONG THUNDERSTORMS WILL IMPACT BELKNAP COUNTY...OXFORD COUNTY... YORK COUNTY...CUMBERLAND COUNTY AND CARROLL COUNTY THROUGH 1145 AM EDT... AT 1038 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 4 MILES SOUTHEAST OF NEW HAMPTON... MOVING EAST AT 40 MPH. THIS STRONG THUNDERSTORM WILL AFFECT AREAS IN AND AROUND SANBORNTON...NEW HAMPTON...LACONIA...MEREDITH... GILFORD...WOLFEBORO...BRIDGEWATER...TUFTONBORO...CENTER HARBOR AND OSSIPEE THROUGH 1145 AM EDT. SMALL HAIL...HEAVY DOWNPOURS...CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 35 TO 45 MPH CAN BE EXPECTED. HAYES
Special weather statement, Jul 15, 11:15 AM EDT, 2 hours 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 1115 AM EDT SUN JUL 15 2007 NHZ008>010-151615- BELKNAP-MERRIMACK-STRAFFORD- 1115 AM EDT SUN JUL 15 2007 ...STRONG THUNDERSTORMS WILL IMPACT BELKNAP COUNTY...STRAFFORD COUNTY AND MERRIMACK COUNTY THROUGH 1215 PM EDT... AT 1115 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 11 MILES SOUTHWEST OF HENNIKER...MOVING NORTHEAST AT 35 MPH. THIS STRONG THUNDERSTORM WILL AFFECT AREAS IN AND AROUND HENNIKER...CONTOOCOOK...HOPKINTON...CONCORD...BOSCAWEN... CANTERBURY...LOUDON...CHICHESTER...GILMANTON AND EPSOM THROUGH 1215 PM EDT. SMALL HAIL...HEAVY DOWNPOURS...CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 35 TO 45 MPH CAN BE EXPECTED. HAYES
Special weather statement, Jul 15, 11:44 AM EDT, 1 hour 48 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 1144 AM EDT SUN JUL 15 2007 MEZ018-NHZ006-008>010-151645- BELKNAP-INTERIOR YORK-MERRIMACK-SOUTHERN CARROLL-STRAFFORD- 1144 AM EDT SUN JUL 15 2007 ...STRONG THUNDERSTORMS WILL IMPACT BELKNAP COUNTY...STRAFFORD COUNTY...MERRIMACK COUNTY...YORK COUNTY AND CARROLL COUNTY THROUGH 1245 PM EDT... AT 1144 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED ABOUT 7 MILES WEST OF CONCORD...MOVING NORTHEAST AT 40 MPH. THIS STRONG THUNDERSTORM WILL AFFECT HOPKINTON...CONTOOCOOK...CONCORD...BOSCAWEN...CANTERBURY...LOUDON... EPSOM...CHICHESTER...PITTSFIELD AND BARNSTEAD THROUGH 1245 PM EDT. SMALL HAIL...HEAVY DOWNPOURS...CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 35 TO 45 MPH CAN BE EXPECTED. HAYES
Special weather statement, Jul 15, 11:49 AM EDT, 1 hour 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 1149 AM EDT SUN JUL 15 2007 MEZ018-019-NHZ006-010-151645- INTERIOR CUMBERLAND-INTERIOR YORK-SOUTHERN CARROLL-STRAFFORD- 1149 AM EDT SUN JUL 15 2007 ...STRONG THUNDERSTORMS WILL IMPACT STRAFFORD COUNTY...YORK COUNTY... CUMBERLAND COUNTY AND CARROLL COUNTY THROUGH 1245 PM EDT... AT 1149 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 3 MILES NORTHWEST OF MIDDLETON...MOVING NORTHEAST AT 30 MPH. THIS STRONG THUNDERSTORM WILL AFFECT AREAS IN AND AROUND MIDDLETON...BROOKFIELD...WAKEFIELD...ACTON... SHAPLEIGH...NEWFIELD...LIMERICK...HOLLIS AND LIMINGTON THROUGH 1245 PM EDT. SMALL HAIL...HEAVY DOWNPOURS...CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 35 TO 45 MPH CAN BE EXPECTED. HAYES
Special weather statement, Jul 15, 11:58 AM EDT, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 1158 AM EDT SUN JUL 15 2007 MEZ019>021-024>026-151700- ANDROSCOGGIN-COASTAL CUMBERLAND-INTERIOR CUMBERLAND-KENNEBEC-LINCOLN-SAGADAHOC- 1158 AM EDT SUN JUL 15 2007 ...STRONG THUNDERSTORMS WILL IMPACT ANDROSCOGGIN COUNTY...KENNEBEC COUNTY...SAGADAHOC COUNTY...CUMBERLAND COUNTY AND LINCOLN COUNTY THROUGH 100 PM EDT... AT 1158 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 4 MILES SOUTHWEST OF RAYMOND...MOVING NORTHEAST AT 35 MPH. THIS STRONG THUNDERSTORM WILL AFFECT NORTH WINDHAM...NAPLES...CASCO...RAYMOND...GRAY...POWNAL...NORTH YARMOUTH...NEW GLOUCESTER...LEWISTON AND AUBURN THROUGH 100 PM EDT. SMALL INCH...HEAVY DOWNPOURS...CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 35 TO 45 MPH CAN BE EXPECTED. HAYES
Special weather statement, Jul 15, 1:13 PM EDT, 19 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 15, 12:30 PM EDT | Severe Thunderstorm Warning | GYX | York | 60 min |
| Jul 15, 1:08 PM EDT | Special Marine Warning | GYX | 67 min | |
| Jul 15, 2:12 PM EDT | Special Marine Warning | GYX | 63 min | |
| Jul 15, 3:06 PM EDT | Severe Thunderstorm Warning | GYX | York | 39 min |
| Jul 15, 3:20 PM EDT | Special Marine Warning | GYX | 55 min | |
| Jul 15, 3:23 PM EDT | Severe Thunderstorm Warning | GYX | Cumberland | 52 min |
| Jul 15, 7:26 PM EDT | Severe Thunderstorm Warning | GYX | Somerset | 49 min |
| Jul 15, 12:25 PM EDT | Severe Thunderstorm Warning | GYX | Strafford | 35 min |
| Jul 15, 12:59 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack | 46 min |
| Jul 15, 1:04 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 41 min |
| Jul 15, 1:16 PM EDT | Severe Thunderstorm Warning | GYX | Strafford | 44 min |
| Jul 15, 1:59 PM EDT | Severe Thunderstorm Warning | GYX | Sullivan | 46 min |
| Jul 15, 2:11 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack | 64 min |
| Jul 15, 2:29 PM EDT | Severe Thunderstorm Warning | GYX | Belknap | 46 min |
| Jul 15, 3:08 PM EDT | Severe Thunderstorm Warning | GYX | Carroll | 28 min |
Nearby
Severe Thunderstorm Warnings in Maine, 2007Every severe thunderstorm warning in 2007
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.