Alert archive / Maine / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 191, NWS Gray, ME
NWS Gray, ME issued this severe thunderstorm warning at Aug 17, 2007, 7:18 PM EDT for Somerset County, Maine. It was in force for 42 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
- Aug 17, 2007, 7:18 PM EDT (23:18 UTC)
- Expired
- Aug 17, 2007, 8:00 PM EDT
- In force
- 42 min
- Issued by
- NWS Gray, ME
- Area
- Counties, with a storm outline in the text
County Somerset County, ME
The radar
The Caribou radar (KCBW), 177 km from the middle of the area, began a volume at 23:18 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 nearest sounding before it
Caribou, ME (KCAR), launched 12:00Z, 11.3 hours before the alert went out and 213 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
- 1329 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- -85 m²/s²
- 0-3 km storm-relative helicity
- -6 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 Aug 17, 2:59 PM EDT, 4 hours 19 minutes earlier.
Area forecast discussion, Aug 17, 2:59 PM EDT, 4 hours 19 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 259 PM EDT FRI AUG 17 2007 .SYNOPSIS...A COLD FRONT WILL MOVE SOUTHEAST ACROSS THE REGION TONIGHT. A LARGE HIGH PRESSURE AREA OVER CENTRAL CANADA WILL BUILD SOUTHEAST INTO THE REGION SATURDAY THROUGH MONDAY. A WARM FRONT WILL SLOWLY APPROACH THE AREA FROM THE SOUTHWEST TUESDAY AND WEDNESDAY AND WILL MOVE THROUGH ON THURSDAY. && .NEAR TERM /UNTIL 8 PM THIS EVENING/... UPPER LEVEL SHORT WAVE TROUGH AND ASSOCIATED SURFACE COLD FRONT OVER QUEBEC PROVINCE WILL CONTINUE TO PUSH SOUTHEAST TOWARDS THE FORECAST AREA AND COULD PRODUCE SOME WIDELY SCATTERED SHOWERS AND THUNDERSTORMS OVER THE FORECAST AREA THROUGH 8 PM. && .SHORT TERM /8 PM THIS EVENING THROUGH 6 PM SATURDAY/... EXPECT SCATTERED SHOWERS TO PRECEDE THE COLD FRONTAL PASSAGE ACROSS THE FORECAST AREA OVERNIGHT. SUPPORT FOR THUNDERSTORMS LOOKS WEAK WITH FORECAST CAPES DROPPING OFF AFTER SUNSET SO HAVE NOT INCLUDED THUNDERSTORMS IN THE OVERNIGHT FORECAST. EXPECT CLOUDY TO MOSTLY CLOUDY SKIES WHICH SHOULD KEEP RADIATIONAL COOLING AND FOG FORMATION IN CHECK SO NO FOG FORECAST FOR TONIGHT. LOW TEMPERATURES SHOULD RANGE FROM THE UPPER 40S NORTH TO THE MID 50S NEW HAMPSHIRE SEACOAST. CLOUDS SHOULD DRY OUT SOUTH OF THE MOUNTAINS SATURDAY WITH GOOD DOWNSLOPE CONDITIONS YIELDING MOSTLY SUNNY SKIES. SHOWERS SHOULD END IN THE MOUNTAINS DURING THE MORNING AND SKIES WILL TURN PARTLY SUNNY DURING THE AFTERNOON. HIGH TEMPERATURES WILL ONLY REACH NEAR 60 IN THE MOUNTAINS AND RANGE UP TO AROUND 70 SOUTH, BRINGING AN EARLY TASTE OF AUTUMN TEMPERATURES. && .LONG TERM /SATURDAY NIGHT THROUGH FRIDAY/... CANADAIAN HGIH PRES WILL SLOWLY BUILD ACROSS THE REGION SATURDAY THRU MON WITH A COOL DRY AIR MASS. A WARM FRONT WILL APPROACH FROM THE WEST TUESDAY AS THE NORTHWEST FLOW ALOFT BEOCOMES MORE WESTERLY AND SYSTEMS MOVE MORE FROM THE WEST. TIMING OF WAA SHOWERS LOOKS TO BE LATE TUESDAY OR TUESDAY NIGHT WHICH MAY CONTINUE INTO WEDNESDAY. WITH MORE WARM AND HUMID CONDITIONS RETURNING LATE IN THE WEEK ALONG WITH MINOR IMPULSES CREATING SOME RANDOM INSTBLTY AT TIMES THE RISK OF SCT SHWRS WILL NEED TO BE FCST. STAYED CLOSE TO GUIDANCE ON THE TEMPS. && .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/... SHORT TERM /18Z FRIDAY THROUGH 18Z SATURDAY/...SCATTERED SHOWERS MAY AFFECT AIRPORTS OVERNIGHT WITH BRIEF MVFR CEILINGS...OTHERWISE MID LEVEL CEILINGS AND VISIBILITY ABOVE 6 MILES WILL PREVAIL OVERNIGHT AS A COLD FRONT MOVES THROUGH THE REGION. CLOUD COVER WILL PERSIST OVER THE MOUNTAINS SATURDAY BUT SHOULD SCATTER OUT SOUTH OF THE MOUNTAINS. NORTHWEST SURFACE WINDS WILL INCREASE TO 15 TO 20 KT BY MID MORNING SATURDAY. LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... VFR CONDS THRU MON. CONDS MAY LWR TO MVFR ON LATE TUES INTO WED AS A WARM FRONT APPROACHES WITH SCT PRE-WARM FRONTAL SHWRS. && .MARINE... .SHORT TERM /TONIGHT AND SATURDAY/...WINDS AND SEAS WILL REMAIN BELOW SMALL CRAFT ADVISORY CRITERIA IN THE SHORT TERM. WINDS WILL BE LIGHT OVERNIGHT WITH A COLD FRONT PUSHING THROUGH. WEST TO NORTHWEST WINDS WILL INCREASE SATURDAY BEHIND THE FRONT, REACHING 15 TO 20 KT WITH A FEW GUSTS TO 25 KT BY LATE AFTERNOON. .LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... WINDS AND SEAS TO REMAIN GENERALLY BELOW SCA CRITERIA THRU THE PERIOD. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...NONE. && SYNOPSIS...WHEELER NEAR TERM...WHEELER SHORT TERM...WHEELER LONG TERM...MARINE AVIATION...WHEELER/ MARINE...WHEELER/
Hazardous weather outlook, Aug 17, 3:24 AM EDT, 15 hours 54 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAY ME 324 AM EDT FRI AUG 17 2007 ANZ150-MEZ007>009-012>014-018>028-NHZ001>010-013-014-180730- STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 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- 324 AM EDT FRI AUG 17 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 NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY 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, Aug 17, 5:01 PM EDT, 2 hours 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 501 PM EDT FRI AUG 17 2007 MEZ020-021-172145- ANDROSCOGGIN-KENNEBEC- 501 PM EDT FRI AUG 17 2007 ...STRONG THUNDERSTORMS WILL IMPACT ANDROSCOGGIN COUNTY AND KENNEBEC COUNTY THROUGH 545 PM EDT... AT 501 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 2 MILES WEST OF FAYETTE...OR ABOUT 13 MILES NORTHEAST OF TURNER...MOVING NORTHEAST AT 25 MPH. THIS STRONG THUNDERSTORM WILL AFFECT AREAS IN AND AROUND WINTHROP...WAYNE... READFIELD...LEEDS...FAYETTE...MOUNT VERNON...VIENNA...BELGRADE AND SIDNEY THROUGH 545 PM EDT. EXPECT PEA-SIZED HAIL...AND WIND GUSTS OF 35 TO 45 MPH AS THIS WEATHER MOVES THROUGH. APFFEL
Special weather statement, Aug 17, 5:16 PM EDT, 2 hours 2 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 516 PM EDT FRI AUG 17 2007 MEZ007-008-012-013-172215- NORTHERN FRANKLIN-NORTHERN OXFORD-SOUTHERN FRANKLIN-SOUTHERN OXFORD- 516 PM EDT FRI AUG 17 2007 ...SCATTERED THUNDERSTORMS WILL IMPACT OXFORD COUNTY AND FRANKLIN COUNTY THROUGH 615 PM EDT... AT 516 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM CENTERED 6 MILES WEST OF ANDOVER...MOVING NORTHEAST AT 20 MPH. OTHER STORMS ARE SCATTERED THROUGHOUT OXFORD AND FRANKLIN COUNTIES. SOME STORMS MAY CONTAIN PEA-SIZED HAIL...AND WIND GUSTS TO 40 MPH. APFFEL
Special weather statement, Aug 17, 6:03 PM EDT, 1 hour 15 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 |
|---|---|---|---|---|
| Aug 16, 9:06 PM EDT | Special Marine Warning | GYX | 84 min | |
| Aug 16, 11:43 PM EDT | Severe Thunderstorm Warning | GYX | York | 32 min |
| Aug 16, 11:44 PM EDT | Special Marine Warning | GYX | 91 min | |
| Aug 17, 5:33 PM EDT | Severe Thunderstorm Warning | GYX | Oxford | 42 min |
| Aug 16, 8:00 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack | 45 min |
| Aug 16, 8:48 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack | 57 min |
| Aug 16, 9:11 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 34 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.