Forecast and Conditions for Tucson, Arizona

Updated: 12:31 PM MST on May 13, 2008
Observed at Speedway & Euclid, Tucson, Arizona
Temperature 73.9 °F / 23.3 °C
Humidity 22%
Dew Point 33 °F / 0 °C
Wind West at 5.8 mph / 9.3 km/h
Pressure 29.76 in / 1007.7 hPa (Steady)
Conditions Overcast
Visibility 10.0 miles / 16.1 kilometers
Clouds Overcast (OVC) : 13000 ft / 3962 m
Yesterday's Maximum 90 °F / 32 °C
Yesterday's Minimum 63 °F / 17 °C
Normal high 89 °F / 31 °C
Normal low 58 °F / 14 °C
Record high 105 °F / 40 °C (1988)
Record low 39 °F / 3 °C (1933)
Yesterday's Heating Degree Days 0
Yesterday's Cooling Degree Days 12
Sunrise05:27 AM (MST)
Sunset07:13 PM (MST)
Moon Rise01:42 PM (MST)
Moon Set01:52 AM (MST)
Moon Phase
Fire Weather Warning
Statement as of 8:38 am MST on May 13, 2008


... Red flag warning in effect until 7 PM MST this evening...

The National Weather Service in Tucson has issued a red flag
warning... which is in effect until 7 PM MST this evening.

A strong low pressure system over northwest Arizona will drop
south and east through the state today. Winds will remain quite
strong and gusty ahead of this system. While this storm will
gradually bring increased low level moisture to the area... it will be
slowest moving into Santa Cruz and Cochise counties. As a
result... these areas are expected to have red flag conditions this
afternoon with winds of 15 to 25 mph with gusts to 40 mph and
relative humidity values at or below 15 percent. As a result... a
red flag warning has been issued for southern and eastern fire
weather zone 148 including Cochise and Santa Cruz counties.

A red flag warning means that critical fire weather conditions
are either occurring now... or will shortly. A combination of
strong winds... low relative humidity... and warm temperatures will
create explosive fire growth potential.

Please advise the appropriate officials or fire crews in the
field of the red flag warning today for portions of Southeast
Arizona.






Forecast as of 12:15 PM MST on May 13, 2008

Now
Scattered showers and a few thunderstorms will continue to develop through this afternoon as a strong storm system approaches Southeast Arizona. At 12:15 PM MST...a line of showers and occasional thunderstorms extended from eastern Pinal to central Pima County...from near Globe to west of Marana to near Sells. This line of showers and storms is moving east about 20 mph. Eastern Pinal and eastern Pima County...including Tucson and Oro Valley...will see an increase in shower and thunderstorm activity over the next hour. Gusty winds to 40 mph...blowing dust...and occasional lightning strikes are possible.
Forecast as of 8:45 am MST on May 13, 2008

Rest of Today
Partly cloudy becoming mostly cloudy and breezy with a 20 percent chance of showers and thunderstorms. Highs 76 to 81. Southwest wind 15 to 25 mph with gusts to 35 mph becoming west in the afternoon.
Tonight
Partly cloudy with a 10 percent chance of showers and thunderstorms mainly in the evening. Lows 49 to 54. West wind 10 to 15 mph becoming southwest after midnight.
Wednesday
Partly cloudy and warmer. Highs 82 to 87. Southwest wind around 10 mph becoming northwest in the afternoon.
Wednesday Night
Partly cloudy. Lows 56 to 61. West wind 5 to 15 mph becoming south 5 to 10 mph after midnight.
Thursday
Sunny. Highs 86 to 91. Southeast wind 5 to 15 mph.
Thursday Night
Mostly clear. Lows 53 to 59.
Friday
Sunny. Highs 86 to 91.
Friday Night through Sunday
Mostly clear. Lows 55 to 63. Highs 86 to 96.
Sunday Night and Monday
Partly cloudy. Lows 58 to 64. Highs 91 to 96.
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