Alert archive / Maine / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 77, NWS Caribou, ME

August 4, 2007Aroostook County, Maine

NWS Caribou, ME issued this severe thunderstorm warning at Aug 4, 2007, 3:18 PM EDT for Aroostook 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 4, 2007, 3:18 PM EDT (19:18 UTC)
Expired: Aug 4, 2007, 4:00 PM EDT
In force: 42 min
Issued by: NWS Caribou, ME
Area: Counties, with a storm outline in the text

County Aroostook County, ME

The nearest sounding before it

Caribou, ME (KCAR), launched 12:00Z, 7.3 hours before the alert went out and 51 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 495 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 646 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

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 Caribou, ME wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 4, 3:09 PM EDT, 9 minutes earlier.

Area forecast discussion, Aug 4, 3:09 PM EDT, 9 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CARIBOU ME
309 PM EDT SAT AUG 4 2007

.SYNOPSIS...
A COLD FRONT WILL MOVE SOUTH OF THE AREA ON TONIGHT. HIGH PRESSURE
WILL BUILD ACROSS THE STATE OVERNIGHT AND SUNDAY. THE HIGH WILL
SLIDE EAST ON MONDAY. LOW PRESSURE WILL APPROACH MONDAY NIGHT AND
MOVE THROUGH EARLY TUESDAY.

&&

.NEAR TERM /THROUGH SUNDAY/...
WORKING ONGOING SEVERE THUNDERSTORM EVENT. EXPECT STORMS TO QUICKLY
DIMINISH WITH LOSS OF DAYTIME HEATING. PATCHY FOG POSSIBLE
LATE...ESPECIALLY IN AREAS THAT SAW RAINFALL TODAY. HIGH PRESSURE
TO DRY THINGS OUT OVERNIGHT WITH QUIET WEATHER ON SUNDAY.

&&

.SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/...
HIGH PRESSURE WILL MOVE EAST OF THE REGION SUNDAY NIGHT AND MONDAY
MORNING. LOW PRESSURE WILL APPROACH THE REGION FROM THE WEST
MONDAY AFTERNOON AND MOVE THROUGH NEW ENGLAND MONDAY NIGHT INTO
TUESDAY MORNING. WEAK RIDGING WILL ARRIVE TUESDAY AFTERNOON.

HAVE USED SREF GUIDANCE FOR POPS AND QPF...LATEST GFS WAS ALSO
IN LINE WITH SREF GUIDANCE.

&&

.LONG TERM /MONDAY THROUGH SATURDAY/...
THE NEXT SYSTEM TO APPROACH WILL COME ALONG ON WEDNESDAY WITH A
CHANCE FOR SHOWERS. LATEST MODELS SHOW BEST CHANCES FOR SHOWERS
WILL BE ACROSS DOWNEAST MAINE ON WEDNESDAY. HIGH PRESSURE TO RETURN
FOR LATE IN THE WEEK.

&&

.AVIATION /16Z SATURDAY THROUGH WEDNESDAY/...
CONVECTION TO DIMINISH EARLY WITH VFR CONDITION RETURNING. PATCHY
FOG POSSIBLE LATE...ESPECIALLY AT FVE...CAR...PQI...HUL WHERE
RAINFALL OCCURRED EARLIER THIS AFTERNOON. AT BHB AREA OF
STRATUS/FOG JUST OFFSHORE MAY MOVE IN EARLY THIS EVENING BEFORE
COLD FRONT PUSHES OFFSHORE. &&

.MARINE...
STAYED THE COURSE W/CONDITIONS REMAINING BLO SCA.

SHORT TERM: WIND GRIDS GENERATED WITH A NAM12 FOR FIRST 24 HRS AND
GRIDDED MOS AFTER THAT.

&&

.EQUIPMENT...
TECHNICIAN EN ROUTE TO 88D TO REPAIR WAVE GUIDE PROBLEM. SECOND
TECHNICIAN WORKING ON SPRINGFIELD NWR
&&

.CAR WATCHES/WARNINGS/ADVISORIES...
ME...NONE.
MARINE...NONE.

&&

NEAR TERM...LULOFS
SHORT TERM...LULOFS
LONG TERM...ALLEGRETTO
AVIATION...NORCROSS
MARINE...LULOFS

Hazardous weather outlook, Aug 4, 5:17 AM EDT, 10 hours 1 minute before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CARIBOU ME
517 AM EDT SAT AUG 4 2007

ANZ050-MEZ001>006-010-011-015>017-029>032-050930-
COASTAL WATERS FROM EASTPORT ME TO STONINGTON ME OUT 25 NM-
NORTHWEST AROOSTOOK-NORTHEAST AROOSTOOK-NORTHERN SOMERSET-
NORTHERN PISCATAQUIS-NORTHERN PENOBSCOT-SOUTHEAST AROOSTOOK-
CENTRAL PISCATAQUIS-CENTRAL PENOBSCOT-SOUTHERN PENOBSCOT-
INTERIOR HANCOCK-CENTRAL WASHINGTON-COASTAL HANCOCK-
COASTAL WASHINGTON-SOUTHERN PISCATAQUIS-NORTHERN WASHINGTON-
517 AM EDT SAT AUG 4 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL
WATERS...EAST CENTRAL MAINE...NORTH CENTRAL MAINE...NORTHERN
MAINE...SOUTHEAST MAINE AND WEST CENTRAL MAINE.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED LATER THIS MORNING INTO THE
AFTERNOON. SOME THUNDERSTORMS COULD PRODUCE SMALL HAIL AND GUSTY
WINDS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ARE ENCOURAGED TO RELAY ANY WIND OR HAIL REPORT TO THE
NATIONAL WEATHER SERVICE IN CARIBOU.

HEWITT

In the hours before

Local storm report, Aug 4, 11:59 AM EDT, 3 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CARIBOU ME
1159 AM EDT SAT AUG 04 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1155 AM     HAIL             FORT KENT               47.26N 68.59W
08/04/2007  E0.88 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            NICKEL SIZE HAIL. WINDS MEASURED AT 60MPH.

&&

LA

Local storm report, Aug 4, 12:59 PM EDT, 2 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CARIBOU ME
1259 PM EDT SAT AUG 04 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1155 AM     HAIL             FORT KENT               47.26N 68.59W
08/04/2007  E0.88 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            NICKEL SIZE HAIL. WINDS MEASURED AT 60MPH.

1215 PM     HAIL             SAINT AGATHA            47.24N 68.31W
08/04/2007  E1.75 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            GOLF BALL SIZED HAIL REPORTED.

1240 PM     HAIL             GRAND ISLE              47.31N 68.15W
08/04/2007  E2.00 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            HAIL UP TO 2 INCHES IN SIZE.

&&

LA

Local storm report, Aug 4, 1:33 PM EDT, 1 hour 45 minutes before

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Local storm report, Aug 4, 1:43 PM EDT, 1 hour 35 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CARIBOU ME
143 PM EDT SAT AUG 04 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1155 AM     HAIL             FORT KENT               47.26N 68.59W
08/04/2007  E0.88 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            NICKEL SIZE HAIL. WINDS MEASURED AT 60MPH.

1215 PM     HAIL             SAINT AGATHA            47.24N 68.31W
08/04/2007  E1.75 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            GOLF BALL SIZED HAIL REPORTED.

1240 PM     HAIL             GRAND ISLE              47.31N 68.15W
08/04/2007  E2.00 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            HAIL UP TO 2 INCHES IN SIZE.

1245 PM     HAIL             5 SE FRENCHVILLE        47.23N 68.30W
08/04/2007  E1.75 INCH       AROOSTOOK          ME   NWS EMPLOYEE

            GOLF BALL SIZED HAIL REPORTED AT LONG LAKE.

1249 PM     HAIL             VAN BUREN               47.16N 67.94W
08/04/2007  E1.75 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            GOLF BALL SIZED HAIL REPORTED.

1249 PM     HAIL             FORT KENT               47.26N 68.59W
08/04/2007  E1.75 INCH       AROOSTOOK          ME   LAW ENFORCEMENT

            GOLF BALL SIZED HAIL REPORTED. EXTENSIVE DAMAGE DONE TO
            CARS IN MULTIPLE PARKING LOTS INCLUDING MARTINS FORD.

0105 PM     HAIL             VAN BUREN               47.16N 67.94W
08/04/2007  E1.00 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            ONE INCH SIZE HAIL.

0115 PM     HAIL             5 SE WASHBURN           46.74N 68.08W
08/04/2007  E1.00 INCH       AROOSTOOK          ME   NWS EMPLOYEE

            QUARTER SIZED HAIL REPORTED IN CROUSEVILLE.

0122 PM     HAIL             STOCKHOLM               47.04N 68.14W
08/04/2007  E0.50 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            HALF INCH SIZED HAIL REPORTED.

0125 PM     HAIL             NEW SWEDEN              46.94N 68.12W
08/04/2007  E0.88 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            NICKEL SIZED HAIL.

&&

LA

Local storm report, Aug 4, 1:48 PM EDT, 1 hour 30 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CARIBOU ME
148 PM EDT SAT AUG 04 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1155 AM     HAIL             FORT KENT               47.26N 68.59W
08/04/2007  E0.88 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            NICKEL SIZE HAIL. WINDS MEASURED AT 60MPH.

1215 PM     HAIL             SAINT AGATHA            47.24N 68.31W
08/04/2007  E1.75 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            GOLF BALL SIZED HAIL REPORTED.

1240 PM     HAIL             GRAND ISLE              47.31N 68.15W
08/04/2007  E2.00 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            HAIL UP TO 2 INCHES IN SIZE.

1245 PM     HAIL             5 SE FRENCHVILLE        47.23N 68.30W
08/04/2007  E1.75 INCH       AROOSTOOK          ME   NWS EMPLOYEE

            GOLF BALL SIZED HAIL REPORTED AT LONG LAKE.

1249 PM     HAIL             VAN BUREN               47.16N 67.94W
08/04/2007  E1.75 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            GOLF BALL SIZED HAIL REPORTED.

1249 PM     HAIL             FORT KENT               47.26N 68.59W
08/04/2007  E1.75 INCH       AROOSTOOK          ME   LAW ENFORCEMENT

            GOLF BALL SIZED HAIL REPORTED. EXTENSIVE DAMAGE DONE TO
            CARS IN MULTIPLE PARKING LOTS INCLUDING MARTINS FORD.

0105 PM     HAIL             VAN BUREN               47.16N 67.94W
08/04/2007  E1.00 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            ONE INCH SIZE HAIL.

0115 PM     HAIL             5 SE WASHBURN           46.74N 68.08W
08/04/2007  E1.00 INCH       AROOSTOOK          ME   NWS EMPLOYEE

            QUARTER SIZED HAIL REPORTED IN CROUSEVILLE.

0122 PM     HAIL             STOCKHOLM               47.04N 68.14W
08/04/2007  E0.50 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            HALF INCH SIZED HAIL REPORTED.

0125 PM     HAIL             NEW SWEDEN              46.94N 68.12W
08/04/2007  E0.88 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            NICKEL SIZED HAIL.

0135 PM     HAIL             FORT FAIRFIELD          46.77N 67.83W
08/04/2007  E1.00 INCH       AROOSTOOK          ME   NWS EMPLOYEE

            QUARTER SIZED HAIL REPORTED.

&&

LA

Local storm report, Aug 4, 2:52 PM EDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CARIBOU ME
252 PM EDT SAT AUG 04 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1155 AM     HAIL             FORT KENT               47.26N 68.59W
08/04/2007  E0.88 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            NICKEL SIZE HAIL. WINDS MEASURED AT 60MPH.

1215 PM     HAIL             SAINT AGATHA            47.24N 68.31W
08/04/2007  E1.75 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            GOLF BALL SIZED HAIL REPORTED.

1240 PM     HAIL             GRAND ISLE              47.31N 68.15W
08/04/2007  E2.00 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            HAIL UP TO 2 INCHES IN SIZE.

1245 PM     HAIL             5 SE FRENCHVILLE        47.23N 68.30W
08/04/2007  E1.75 INCH       AROOSTOOK          ME   NWS EMPLOYEE

            GOLF BALL SIZED HAIL REPORTED AT LONG LAKE.

1249 PM     HAIL             VAN BUREN               47.16N 67.94W
08/04/2007  E1.75 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            GOLF BALL SIZED HAIL REPORTED.

1249 PM     HAIL             FORT KENT               47.26N 68.59W
08/04/2007  E1.75 INCH       AROOSTOOK          ME   LAW ENFORCEMENT

            GOLF BALL SIZED HAIL REPORTED. EXTENSIVE DAMAGE DONE TO
            CARS IN MULTIPLE PARKING LOTS INCLUDING MARTINS FORD.
            CARS IN LOT SUFFERED BROKEN WINDOWS AND SIGNIFICANT
            DENTS. CARS PARKED IN NORTHERN MAINE MEDICAL CENTER
            PARKING LOT SUFFERED SIMILAR DAMAGE AS WELL.

0105 PM     HAIL             VAN BUREN               47.16N 67.94W
08/04/2007  E1.00 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            ONE INCH SIZE HAIL.

0115 PM     HAIL             5 SE WASHBURN           46.74N 68.08W
08/04/2007  E1.00 INCH       AROOSTOOK          ME   NWS EMPLOYEE

            QUARTER SIZED HAIL REPORTED IN CROUSEVILLE.

0122 PM     HAIL             STOCKHOLM               47.04N 68.14W
08/04/2007  E0.50 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            HALF INCH SIZED HAIL REPORTED.

0125 PM     HAIL             NEW SWEDEN              46.94N 68.12W
08/04/2007  E0.88 INCH       AROOSTOOK          ME   TRAINED SPOTTER

            NICKEL SIZED HAIL.

0135 PM     HAIL             FORT FAIRFIELD          46.77N 67.83W
08/04/2007  E1.00 INCH       AROOSTOOK          ME   NWS EMPLOYEE

            QUARTER SIZED HAIL REPORTED.

&&

LA

The office that day

Everything else NWS Caribou, ME issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 3, 9:05 PM EDT	Areal Flood Advisory	CAR	Hancock, Penobscot, Washington	3 hr
Aug 3, 9:38 PM EDT	Severe Thunderstorm Warning	CAR	Washington	37 min
Aug 3, 10:15 PM EDT	Severe Thunderstorm Warning	CAR	Washington	15 min
Aug 4, 12:28 AM EDT	Marine Weather Statement	CAR		62 min
Aug 4, 12:41 AM EDT	Special Marine Warning	CAR		34 min
Aug 4, 3:35 AM EDT	Marine Weather Statement	CAR		55 min
Aug 4, 5:31 AM EDT	Severe Thunderstorm Warning	CAR	Hancock, Washington	29 min
Aug 4, 5:43 AM EDT	Marine Weather Statement	CAR		62 min
Aug 4, 11:39 AM EDT	Severe Thunderstorm Warning	CAR	Aroostook	66 min
Aug 4, 12:36 PM EDT	Tornado Warning	CAR	Aroostook	24 min
Aug 4, 1:18 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook	57 min
Aug 4, 2:16 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook, Penobscot	59 min
Aug 4, 2:43 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook	62 min
Aug 4, 3:43 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook	47 min
Aug 4, 4:17 PM EDT	Areal Flood Advisory	CAR	Aroostook	58 min
Aug 4, 4:38 PM EDT	Severe Thunderstorm Warning	CAR	Hancock, Washington	38 min

Nearby

Severe Thunderstorm Warnings in Maine, 2007 Every 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.