Severe Thunderstorm Watch 511

Issued

Jun 19, 2006, 3:01 PM EDT (19:01 UTC)

Expired

Jun 19, 2006, 8:56 PM EDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

70 kt

The Portland,ME radar (KGYX), 131 km from the middle of the area, began a volume at 19:01 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.

Two or more tornadoes

20%

One or more EF2 to EF5 tornadoes

5%

Ten or more severe wind reports

80%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

60%

One or more hailstones of 2 inches or more

20%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 1240Jun 19, 1:30 PM EDT
• Mesoscale Discussion 1251Jun 19, 8:47 PM EDT

000 
WWUS20 KWNS 191901
SEL1  
SPC WW 191901
CTZ000-MAZ000-MEZ000-NHZ000-VTZ000-200200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 511
NWS STORM PREDICTION CENTER NORMAN OK
300 PM EDT MON JUN 19 2006

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 

       PARTS OF NORTHERN CONNECTICUT
       MUCH OF MASSACHUSETTS
       MUCH OF MAINE
       NEW HAMPSHIRE
       PARTS OF SOUTHEAST VERMONT

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 300 PM UNTIL
1000 PM EDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHWEST OF
CARIBOU MAINE TO 20 MILES SOUTH SOUTHEAST OF WINDSOR LOCKS
CONNECTICUT.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

OTHER WATCH INFORMATION...CONTINUE...WW 509...WW 510...

DISCUSSION...LINE OF STRONG/SEVERE STORMS ERN NY WILL INTENSIFY
FURTHER AS THEY ENCOUNTER VERY WARM/UNSTABLE AIR MASS NEW ENGLAND. 
IN ADDITION MORE DES CRETE STORMS ARE DEVELOPING HIGHER TERRAIN AND
WILL POSE A SEVERE THREAT AS WELL...POSSIBLY BECOMING SUPERCELLS. 
PRIMARY THREAT WITH BOTH THE LINE AND OTHER STORMS WILL BE DAMAGING
WINDS AND LARGE HAIL.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 24035.


...HALES

Severe Thunderstorm Watches in Maine, 2006Severe Thunderstorm Watches in New Hampshire, 2006Severe Thunderstorm Watches in Massachusetts, 2006Every severe thunderstorm watch in 2006

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.