AquariusRadar Radar Rain Shadow
Home January 2011-2020 rainfall for Jackson and surrounding counties.
Hydrology Concept
Snowpack Enhancement
January rainfall 2020 10 year average
Ideal Candidate Radar The ten year average January rainfall for Jackson County and the surrounding area was near normal with most locations averaging 3.5" +/-. Holmes county, Euchee Valley, Ponce De Leon, Gracevile and other areas in the radar rain shadow is very dry for this 30 day period; Bonifay received only 2.3" averaged for the 10 year period. Slightly above average for 2019 maintains good soil moisture at the 6" depth and temperatures of fall and winter have been slightly above normal. Spring planting should not be a problem. Readers interested in increasing precipation in the Southeast should visit Gulf of Mexico Operations at the lower left. Data sources can be seen here.CoCoRAHS, NW Florida Water Conservation District, and at Florida Department of Forestry.
Hail Suppression Learn more about downwind rainfall patterns of powerful radars by veiwng the RadarRainShadow pages at the left.
Radar Rain Shadow Jackson Still and Prosperity, two important Department of Forestry rainfall reporting locations, have been closed due to state budget cuts. Important CoCoRAHS stations in Calhoun, Holmes, and Bay counties, Fl no longer report. The important reporting station southeast of Dothan, Al in Houston county no longer reports. The ten (10) year average clearly shows the low rainfall in the radar rain shadow; Euchee Valley, Ponce de Leon, Bonifay, and Graceville all remain in drought. The stark demarkation of the dry rain shadow and the wet transfer areas increases later in the year. Yet in the first month of the 9 year averages, Argyle received greater than twice the rainfall of Bonifay, which lies inside the rain shadow. Both recording stations are Florida Forestry Stations and used identical standardized gauges and placement and are only 20 miles apart. The transfer of rainfall for 2011-2020 can be clearly reviewed at the Dec rainfall link below. That map shows that about 20" of rainfall is transferred out of the rain shadow to the wet zones on either side of the rain shadow. The left side wet zone is created by temperate cyclones that pass north of the region; the principle rain maker for the area. The right side wet zone or plume of moisture is generated by marine cyclones that approach from the Gulf of Mexico; those storms make up the bulk of the summer monsoon. Summer 2013, 2014, and 2015 were strong monsoon seasons resultant from the emerging strong El Nino that peaks in spring 2016 and created a large plume. When the monsoon fails, the plume may be weak or nonexistent. The long term average(s) will show the right side plume waxing and waning, depending on the strength of the summer monsoon. The left side plume, created by the more consistent and dominate temperate cyclones, will always reflect the transfer of rainfall out of the rain shadow to the wet zone plume. Studies of the west coast atmospheric rivers (ARs) from the Pacific that may break the California drought should include studies on how to transfer the watershed flooding frequently associated with the ARs. Microwave heating of the cloud base (Aquariusradar) can transport the additional flood waters out of the watershed to a neighboring watershed with storage reservoirs or to snowpack if orographic lifting is downwind. Clouds whose growth is inhibited by the microwave energy give up moisture to competing rain cells. By the use of NexRad radar reports and TITAN type software, these cells, both the target cell and competing cells, are selected to transport the excess rainfall to the storage watershed or snowpack. Learn more here
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