On May 10, eastern New York was sandwiched between two frontal boundaries during much of the day. The air mass was very unstable which resulted in numerous single and multi-cell thunderstorms throughout much of the day. Due to cold air aloft, and cool air near the surface, many of the thunderstorms produced hail ranging from dime to walnut size. The largest hail was reported in Tivoli, Dutchess county. The dime size hail near Saugerties, Ulster county, produced small dents on some cars. 	Lightning struck two separate individuals during the morning hours. A female located at the intersection of State Route 5 and Old Karner road, was struck in her car in Colonie, Albany county. Another female, carrying an umbrella, was struck at a local bus depot, also in the town of Colonie.  Both of the women suffered only minor injuries.   	Lightning strikes also produced fires in homes in Connelly and West Hurley in Ulster county, as well as a garage in Germantown, Columbia county.  A tree initially caught fire. The fire spread to the  home in Connelly which was badly damaged. Lightning started a shed on fire in West Hurley , that spread to an adjacent house, producing significant damage. Only the roof  on the shed was damaged. 	Lightning briefly knocked out power to as many as 20,000 customers in the Mid Hudson Valley area.    	Thunderstorms trained over Herkimer county, producing rainfall amounts up to 4 inches during the course of the day. The torrential rain swelled the drainage facilities in Middleville and produced flash flooding. A culvert under Park Street near Reservoir  Road became clogged with debris, and resulted in the runoff flooding the road and cellars nearby. A few residents were forced to evacuate their homes.

Hail in RENSSELAER, NEW YORK
From 10-MAY-00 06:25:00 to 10-MAY-00 06:25:00 (EST)
Location: BRUNSWICK
Magnitude: 1.00 
Property damage: 1K
Reported by: TRAINED SPOTTER

Lightning in ULSTER, NEW YORK
From 10-MAY-00 10:47:00 to 10-MAY-00 10:47:00 (EST)
Location: WEST HURLEY
Property damage: 25K
Reported by: NEWSPAPER

Hail in DUTCHESS, NEW YORK
From 10-MAY-00 08:00:00 to 10-MAY-00 08:00:00 (EST)
Location: RHINEBECK
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in DUTCHESS, NEW YORK
From 10-MAY-00 06:29:00 to 10-MAY-00 06:29:00 (EST)
Location: TIVOLI
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in SARATOGA, NEW YORK
From 10-MAY-00 15:45:00 to 10-MAY-00 15:45:00 (EST)
Location: BALLSTON SPA
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in SCHOHARIE, NEW YORK
From 10-MAY-00 11:50:00 to 10-MAY-00 11:50:00 (EST)
Location: COBLESKILL
Magnitude: 1.00 
Property damage: 1K
Reported by: TRAINED SPOTTER

Lightning in ULSTER, NEW YORK
From 10-MAY-00 10:00:00 to 10-MAY-00 10:00:00 (EST)
Location: CONNELLY
Property damage: 50K
Reported by: NEWSPAPER

Hail in DUTCHESS, NEW YORK
From 10-MAY-00 09:45:00 to 10-MAY-00 09:45:00 (EST)
Location: HYDE PARK
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in ULSTER, NEW YORK
From 10-MAY-00 10:25:00 to 10-MAY-00 10:35:00 (EST)
Location: KINGSTON
Magnitude: 0.75 
Property damage: 4K
Reported by: TRAINED SPOTTER

Hail in SARATOGA, NEW YORK
From 10-MAY-00 16:30:00 to 10-MAY-00 16:30:00 (EST)
Location: STILLWATER
Magnitude: 0.75 
Reported by: NWS EMPLOYEE(OFF DUTY)

Hail in ULSTER, NEW YORK
From 10-MAY-00 09:41:00 to 10-MAY-00 09:41:00 (EST)
Location: ACCORD
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Flash Flood in HERKIMER, NEW YORK
From 10-MAY-00 15:30:00 to 10-MAY-00 15:30:00 (EST)
Location: MIDDLEVILLE
Property damage: 50K
Reported by: LAW ENFORCEMENT

Lightning in ALBANY, NEW YORK
From 10-MAY-00 07:00:00 to 10-MAY-00 07:00:00 (EST)
Location: COLONIE
Reported by: LAW ENFORCEMENT

Lightning in COLUMBIA, NEW YORK
From 10-MAY-00 11:00:00 to 10-MAY-00 11:00:00 (EST)
Location: GERMANTOWN
Property damage: 5K
Reported by: NEWSPAPER

Hail in DUTCHESS, NEW YORK
From 10-MAY-00 08:47:00 to 10-MAY-00 08:47:00 (EST)
Location: HYDE PARK
Magnitude: 1.00 
Property damage: 1K
Reported by: TRAINED SPOTTER

Hail in SARATOGA, NEW YORK
From 10-MAY-00 16:14:00 to 10-MAY-00 16:14:00 (EST)
Location: SARATOGA SPGS
Magnitude: 1.00 
Property damage: 1K
Reported by: TRAINED SPOTTER

Hail in DUTCHESS, NEW YORK
From 10-MAY-00 06:35:00 to 10-MAY-00 06:35:00 (EST)
Location: TIVOLI
Magnitude: 1.75 
Property damage: 5K
Reported by: TRAINED SPOTTER