EXPERIMENTAL WARNING PROGRAM
A PART OF THE NOAA HAZARDOUS WEATHER TESTBED

2007 EWP Results

Phased Array Radar Demonstration

EWP participants collected and evaluated in real-time, and in case study mode, numerous data sets from the NWRT phased array radar. These evaluations will be used for further development of the phased array radar.

Experimental Warnings

An initial test began in the EWP during spring 2007 to create experimental "threat area" severe weather warnings.

CASA Radars Demonstration

EWP participants viewed real-time and archive products from the CASA radar demonstration network in southwestern Oklahoma. These formal evaluations will be used in the 2008 CASA demonstration and to eventually determine the efficacy of low-cost, low-power, high-density radar networks.

Severe Hazards Analysis & Verification Experiment

The SHAVE 2007 project collected over 5000 surface reports in support of high-resolution verification experiments, including numerous long-lived "swaths" of severe weather. Numerous ground surveys of wind and/or tornado damage were conducted in Central Oklahoma in support of testbed data.

Other projects

Dual-pol Radar Demonstration: EWP participants viewed and evaluated products generated by the KOUN testbed dual-polarimetric WSR-88D. The radar network is expected to be upgraded to include dual-pol capabilities around 2010, so the feedback generated by the EWP participants will be used in the development of the nationally deployed product suite.

Lightning Mapping Array Demonstration: Data from the Oklahoma Mapping Array were available for evaluation for the 2nd consecutive year. EWP participants were able to use these data in near-real-time to evaluate in-cloud lightning flash rates and their association with severe weather at the surface.

Radar Refractivity Experiment: EWP participants were also able to view experimental products characterizing radar refractivity, which can help forecasters better diagnose near-surface moisture. Their feedback will be used to determine the feasibility of national deployment of radar refractivity diagnostic products.

For more information on the Experimental Warning Program, email Greg Stumpf .

7/31/07