1. PUERTO VALLARTA, MEXICO; NOVEMBER 6 OF 2003 COMISION NACIONAL DEL AGUA GERENCIA REGIONAL NOROESTE FIFTH MEETING OF THE NAME SCIENCE WORKING GROUP (SWG-5)

2. SONORA GETS THE 64 % OF HIS YEARLY PRECIPITATIÓN DURING THE SUMMER SEASON. IN THIS SEASON, SONORA HAS SEVERAL HEAVY RAIN AND STORMS THAT CAUSE BIG RUSHING WATER AND FLASH FLOODS. THE REGION OF THE STATE WITH MORE AMOUNT OF RAINFALL IN THIS SEASON IS THE SOUTHERN AND THE EASTERN REGION. COMISION NACIONAL DEL AGUA GERENCIA REGIONAL NOROESTE

3. COMISION NACIONAL DEL AGUA GERENCIA REGIONAL NOROESTE TROPICAL CYCLONES AFECT TO SONORA BETWEEN AUGUST 15 AND OCTOBER 15, DURING THIS PERIOD, CONDITIONS FOR TO RAINFALL HAPPENS ARE GETTING BETTER. NOWADAYS, FOR THE METEOROLOGICAL FORECAST, WE USE INFORMATION FROM THE SMN OF MÉXICO AND FROM THE NWS OF USA.

4. PLACES OF METEOROLOGICAL OBSERVATIONS 147 CLIMATE STATIONS 6 SURFACE OBSERVATORIES 1 RADIOSONDE STATION 1 METEOROLÓGICAL RADAR(DOPPLER) ALL THE MEASUREMENTS INSTRUMENT OF THE OBSERVATORIES ALL VERY OLD AND MOST OF THEM MUST BE REPLACED. COMISION NACIONAL DEL AGUA GERENCIA REGIONAL NOROESTE

5. COMISION NACIONAL DEL AGUA GERENCIA REGIONAL NOROESTE IS NECESARY TO IMPROVE CAPACITIES AND RESOURCES OF LOCAL OBSERVATORIES FOR TO DETECT BETTER AND QUICKLY EVENTS OF STORMS AND HEAVY RAIN DURING THE SUMMER SEASON, IN ORDER TO PREVENT TO LOST HUMAN LIVES AND MATERIAL RESOURCES.

6. 110109 111 112 113 114 32 28 27 110109111112 29 31 30 CLIMATE STATION OBSERVATORY RADIOSONDE AND OBSERVATORY RADAR PUERTO PEÑASCO ALTAR NACOZARI HERMOSILLO EMPALME CD. OBREGÓN RADAR 113114

7. 115° 105° 25° 30° 110° 115° 105° 32° 30° 110° X RANGE OF OBSERVATION 480 Km 240 Km 120 Km DOPPLER MODE METEROLOGICAL RADAR (DOPPLER)

8. PERSONAL REGIONAL GERENCY 1 METEOROLOGICAL RADAR 3 OBSERVATORIES 12 CLIMATE STATIONS 142 THE PERSONAL OF THE OBSERVATORIES CAN ONLY COVER THE THIRD PART OF THE WHOLE OBSERVATION´S TIME OF EVERY MONTH. COMISION NACIONAL DEL AGUA GERENCIA REGIONAL NOROESTE