A trickle of rain dripped on Lawrence overnight, leaving behind a scant .15 of an inch, but more is predicted through today and tonight.
Matt Foster, forecaster for the Kansas University Weather Service, said this morning that he expects the area to get about a quarter of an inch of rain before the rainy weather makes its exit, which is expected to occur Friday morning.
Rainfall Wednesday night and this morning is the first precipitation recorded for the month of May. For the year, the rain brings Lawrence's rainfall total to 7.96 inches, which is slightly behind the normal rainfall expected for the year to date of 8.13 inches.
April, which brought a meager 1.39 inches of rain, marked the first month this year to have below-normal moisture, according to records kept at the weather service.
Foster said the recent rain was the result of moist air being forced north from the Gulf of Mexico. As the moist air is being pushed north, it is passing over a high pressure system at the Oklahoma-Texas border. As the air rises, its moisture condenses, forms clouds, and rains, Foster said.
The whole system is moving east and expected to be out of Lawrence by Friday morning, he said.
Rainfall amounts reported elsewhere in the Lawrence area this morning were: Worden, .54 of an inch; Eudora, .29; Lecompton, .03; Tonganoxie, .10; Clinton Lake, .10; Perry Lake, .02; and Oskaloosa, .04.