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RAINFALL TOTALS

the water districts that form part of the soar target area maintain a network of rain gauges.  on the last day of the month, these rain gauges are all measured and the data is then plotted graphically.

Rainfall in the area is convective and highly variable. radar is therefore the most appropriate tool for estimating rainfall over a large area.

 

 

24 hour radar estimated precipitation accumulation is available from the Midland and Lubbock NEXRAD radars. The image shows the radar estimated rainfall from the Lubbock and Midland radars. The color contours on the image indicate the amount of rainfall in millimeters as shown in the bar to the left of the page. The latest 24 hour radar estimated rainfall is available here.

 

The rainfall in the target area is mainly convective during the operational season and thus it is more localized and its spatial and temporal distribution as well as the intensity of rainfall is highly variable. Therefore, it is essential to measure area rainfall on real time as accurately as possible.  Various methods of rainfall measurements are available.  These include rain gauge, rainfall recorder, radar and satellite. Of these different measuring devices radar is useful and advantageous in providing continuous, large area coverage and real-time estimating of rainfall.

 

Radar is an attractive alternative for the estimation of convective rainfall, because it provides the equivalent of a very dense gauge network (one square kilometer).  Radar estimation of rainfall is, however, a complex undertaking involving determination of the radar parameters, calibration of the system, anomalous propagation of the radar beam, ground clutter and “false rainfall”, concerns about beam filling and attenuation, and the development of equations relating radar reflectivity (Z) to rainfall rate (R), where radar reflectivity is proportional to the sixth power of the droplet diameters in the radar beam.

 

NEXRAD is an S-band (10 cm) radar that does not attenuate appreciably in heavy rain, and they are operated continuously unless they are down for maintenance.  In addition, the NEXRAD radars have a clutter-removal algorithm that eliminates most of the ground clutter and false rainfall produced during periods of anomalous propagation.

 

This NEXRAD data is now available through Weather Decision Technologies (WDT).  WDT receives instantaneous reflectivity data from the NWS radar sites located in the United States.  This product is available from the Midland and Lubbock NWS NEXRAD sites and plans for acquiring the DOD Canon Air Force base radar are being explored.  The NEXRAD data is run through TITAN as a graphic user interface.  WDT will customize the data to include a superior radar estimated rainfall product and a DopplerCast™ feature which is an accurate depiction model of future radar reflectivity.

Precipitation accumulation plots are generated after every cloud seeding operation. Click on the links below to see the precipitation accumulation after each operation. The date will show up on the top left corner and the time is in GMT (subtract 5 hours in TX or 6 hours in NM). These pictures will be updated with new plots.

 

04/15/05 04/17/05 04/26/05 05/06/05

rain20050415.jpg (424134 bytes)

rain20050417.jpg (489092 bytes)

rain20050426.jpg (434982 bytes)

rain20050506.jpg (506180 bytes)

05/14/05

06/10/05

06/11/05

06/12/05

rain20050514.jpg (288083 bytes)

rain20050610.jpg (339861 bytes)

rain20050611.jpg (296220 bytes)

rain20050612.jpg (283584 bytes)

06/26/05

06/30/05

07/01/05

07/06/05

rain20050626.jpg (532435 bytes)

rain20050630.jpg (499503 bytes)

rain20050701.jpg (696582 bytes)

rain20050706.jpg (727377 bytes)

07/08/05

07/09/05

07/10/05

07/14/05

rain20050708.jpg (425390 bytes)

rain20050709.jpg (751248 bytes)

rain20050710.jpg (414055 bytes)

rain2005071415.jpg (75033 bytes)

07/15/05

07/25/05

07/26/05

07/29/05

rain20050715.jpg (513568 bytes)

rain20050725.jpg (401428 bytes)

rain20050726.jpg (858175 bytes)

rain20050729.jpg (321745 bytes)

08/04/05

08/05/05

08/06/05

08/07/05

rain20050804.jpg (940269 bytes)

rain20050805.jpg (860887 bytes)

rain20050806.jpg (565246 bytes)

rain20050807.jpg (380374 bytes)

08/08/05

08/09/05

08/12/05

08/13/05

rain20050808.jpg (558775 bytes)

rain20050809.jpg (286724 bytes)

rain20050812.jpg (861369 bytes)

rain20050813.jpg (892791 bytes)

08/20/05

08/22/05

08/23/05

08/24/05

rain20050820.jpg (702540 bytes)

rain20050822.jpg (355279 bytes)

rain20050823.jpg (553644 bytes)

rain20050824.jpg (566383 bytes)

08/27/05

08/29/05

09/01/05

rain20050827.jpg (630487 bytes)

rain20050829.jpg (484738 bytes)

rain20050901.jpg (249773 bytes)

Monthly rainfall totals in the SOAR rain gauge network.

Rainfall Totals for 2002

April, 2002 May, 2002 June, 2002
July, 2002 August, 2002 September, 2002

Rainfall Totals for 2003

April, 2003 May, 2003 June, 2003
July, 2003 August -September, 2003  

Rainfall Totals for 2004

April, 2004 May, 2004 June, 2004
July, 2004 August, 2004 September, 2004
Rainfall Totals for 2005
April, 2005 May, 2005 June, 2005
July, 2005 August, 2005 September, 2005
 
 
   updated by Duncan Axisa - Meteorologist