A slow moving low pressure system at both the surface and aloft helped trigger heavy rain across Morris County on the 20th and 21st.  Two day storm totals ranged from one inch in the eastern part of the county to over three inches in the western part of the county. The heavy rain that fell during the afternoon and early evening of the 21st caused flooding. Flooded roads were reported in Denville, Dover and Jefferson Townships. Dirt and rocks had to be removed from roads in Jefferson Township. In Mendham Township, flooding was reported in the Knollwood Trail Development. Basement flooding was reported throughout the county. Runoff from the heavy rain led to flooding across sections of the Passaic Basin in the ensuing days. The Rockaway River below the Boonton Reservoir was above its 5 foot flood stage from 205 a.m. EDT on the 22nd through 1015 p.m. EDT on the 23rd. It crested at 5.97 feet at 215 p.m. EDT on the 22nd. The Pequannock River at the Macopin Intake Dam was at its 5.5 foot flood stage around 5 a.m. EDT on the 22nd. The Passaic River at Pine Brook reached its 19 foot flood stage at 245 a.m. EDT on the 23rd, crested at 19.14 feet at 215 p.m. EDT on the 23rd and was back within bankfull at 2 p.m. EDT on the 24th. Two day storm totals included 1.73 inches in Long Valley and 1.65 inches in Chatham.  The low pressure system responsible for the heavy rain formed along a stationary front over the Carolinas during the morning of the 20th. It moved to just east of Wallops Island, Virginia during the evening of the 20th and well east of the Delmarva Peninsula during the morning of the 21st. An inverted trough at the surface that extended from the low westward into Northern New Jersey and Northeast Pennsylvania concentrated the heavy rain along its axis. On the 21st, the heaviest rain fell from the afternoon into the early evening.June as a whole was an unseasonably wet month. On a county weighted average, June monthly precipitation totals averaged 8.7 inches in Morris County. Normal is around 3.9 inches. Morris County was not alone in New Jersey with the wet weather. The preliminary statewide June monthly precipitation average was 8.51 inches, 4.72 inches wetter than normal. This would surpass June 1972 as the wettest June on record since 1895. Monthly precipitation totals included 7.54 inches at Mercer County Airport and 6.99 inches at the Atlantic City International Airport. The wet spring weather led to a whole different set of problems from the drought of the previous year. Planted seeds were drowning and rotting. Many soybean, corn and berry fields were too wet. There were also problems with slugs. Vegetables were generally about a month behind. Double crop fields fell behind schedule because of the slow growth of straw and hay. Garden shops sales have been down. Pool installations were about three to six weeks behind. Ant infestations increased. Windshield wipers were tearing. Many spring athletic seasons were extended because of postponed events. There will be a bumper crop of mosquitoes. Attendance along the shore and at amusement parks was down. Road work was delayed. The one few positives from the wet weather was lower utility bills.

Flood in MORRIS, NEW JERSEY
From 21-JUN-03 16:00:00 to 24-JUN-03 13:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC