Isolated showers and thunderstorms will continue to develop and track west across the area through early evening. The strongest storms will produce brief heavy rain...small hail...frequent lightning and wind gusts up to 40 mph. Rainfall amounts will range from one tenth to one quarter of an inch...with localized amounts up to one inch.
Forecast for Tucson Metro/Marana/Green Valley
Updated: 2:02 PM MST on July 29, 2010
Tonight
Numerous showers and thunderstorms in the evening... then scattered showers and thunderstorms after midnight. Some thunderstorms may produce heavy rainfall in the evening. Lows 73 to 78. Southwest wind 5 to 10 mph becoming southeast after midnight. Chance of precipitation 60 percent.
Friday
Chance of showers and thunderstorms in the morning... then showers and thunderstorms likely in the afternoon. Some thunderstorms may produce heavy rainfall in the afternoon. Highs 90 to 95. South wind around 10 mph becoming northwest in the afternoon. Chance of precipitation 60 percent.
Showers and thunderstorms likely in the evening... then chance of showers and thunderstorms after midnight. Lows 71 to 76. South wind 5 to 15 mph. Chance of precipitation 70 percent.
Saturday
Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs 87 to 92. Southeast wind around 5 mph becoming west in the afternoon.
Mostly cloudy. Chance of showers and thunderstorms in the evening...then slight chance of showers and thunderstorms after midnight. Lows 70 to 75. South wind 5 to 15 mph. Chance of precipitation 50 percent.
Sunday
Mostly cloudy. Slight chance of showers and thunderstorms in the morning...then chance of showers and thunderstorms in the afternoon. Highs 92 to 97. Chance of precipitation 40 percent.
Mostly cloudy with chance of showers and thunderstorms in the evening...then partly cloudy with slight chance of showers and thunderstorms after midnight. Lows 71 to 76. Chance of precipitation 40 percent.
Monday
Partly cloudy with slight chance of showers and thunderstorms in the morning...then mostly cloudy with chance of showers and thunderstorms in the afternoon. Highs 97 to 102. Chance of precipitation 30 percent.
Monday Night
Mostly cloudy with chance of showers and thunderstorms in the evening...then partly cloudy with slight chance of showers and thunderstorms after midnight. Lows 73 to 78. Chance of precipitation 30 percent.
Tuesday through Thursday
Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs 97 to 104. Lows 73 to 80.
The National Weather Service in Tucson has issued a
* small stream Flood Advisory for... central Pima County in south central Arizona...
* until 630 PM MST
* at 424 PM MST National Weather Service Doppler radar depicted thunderstorms have weakened over the Tohono Oodham Nation west of Sells. However... radar indicated rainfall amounts are 2 to 4 inches just south of San Simon Village. This will mainly flow into the San Simon wash from Sam Simon to just west of Pisinimo. This flow will eventually make it south towards the Village of Santa Cruz and the Vamori wash. Thus... the Flood Advisory has been extended and this advisory replaces the previous advisory that was in effect for this area.
Precautionary/preparedness actions...
This includes the following streams and drainages... San Luis wash... San Simon wash... Vamori wash... GU Achi wash... Santa Rosa wash... Hickiwan wash... Quijotoa wash... GU Vo wash and Pisinimo wash..
Excessive runoff from heavy rainfall will cause elevated levels in washes and streams... and ponding of water on country roads along the banks of creeks and streams.
Do not drive your vehicle into areas where the water covers the roadway. The water depth may be too great to allow your car to cross safely. Move to higher ground.
