APPENDIX

Meso-scale Networks of Surface Observing Stations

The network shown in figure A1 consists of 47 surface recording stations extending from Norman, Okla., southwestward about 100 statute miles. Stations are spaced 10 to 15 mi. apart and continuously record pressure, temperature, relative humidity, precipitation, and wind speed and direction. Plans exist for instrumenting a 1500' television tower near Oklahoma City, and installing new stations along the north side of the present establishment. Network data are further augmented by rawinsonde ascents made serially at Fort Sill, at Will Rogers FieId, and at Tinker Air Force Base, aIso shown in this figure. Other surface weather observations are available from Ardmore, Hobart, Clinton-Sherman AFB, Fort Sill, and Wichita Falls, Tex. Reports on severe weather are received from about 400 volunteer observers in the area who are supplied special reporting forms by NSSL.

Mesonetwork consisting of 47 surface recording stations extending from Norman, Okla., southwestward about 100 statute miles.

 

Figure A2 shows the network of 173 recording rain gages operated all year by the Agricultural Research Service of the Department of Agriculture. These gages are spread over 1100 mi.2 of the Washita River Watershed, where 12 stream gages are also operated. The 3-mi. spacing of the rain gages yields data only slightly coarser than the resolution of the radar.

Network of 173 recording rain gages in the Washita River Watershed

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