Colder in AZ than the Stateline?

Yes sir! That's the case tonight, anyway. The forecast low for some of the Phoenix suburbs is in the 20s tonight, while temperatures across the Stateline will hold in the low to mid-40s. (No wonder they closed the roof on the dome for the Cardinals' football game tonight!) In fact, freeze warnings and hard freeze warnings are in-effect for much of the southern Arizona deserts:

URGENT - WEATHER MESSAGE

NATIONAL WEATHER SERVICE PHOENIX AZ

204 PM MST MON NOV 29 2010



EVEN COLDER AIR FROM THE NORTHWEST AND NORTH WILL MOVE INTO THE

AREA TONIGHT. THE COMBINATION OF DRY AIR...CLEAR SKIES...AND LIGHT

WIND WILL RESULT IN SUB- FREEZING TEMPERATURES ACROSS THE LOWER

DESERT AREAS EARLY TUESDAY MORNING.



AZZ022-023-026>028-301200-

/O.CON.KPSR.FZ.W.0003.101130T0900Z-101130T1600Z/

NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA-SOUTHWEST DESERTS-

SOUTHWEST MARICOPA COUNTY-

NORTHWEST AND NORTH CENTRAL PINAL COUNTY-

INCLUDING THE CITIES OF...BUCKEYE...NEW RIVER...WICKENBURG...

MESA...PHOENIX...TACNA...WELLTON...GILA BEND...APACHE JUNCTION...

CASA GRANDE...FLORENCE

204 PM MST MON NOV 29 2010



...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM MST

TUESDAY...



A FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM MST TUESDAY.



* AFFECTED AREA: PORTIONS OF MARICOPA...PINAL...AND YUMA

COUNTIES...INCLUDING THE GREATER PHOENIX AREA...AND THE TOWNS

OF MARICOPA...CASA GRANDE...GILA BEND...TACNA...AND

WICKENBURG.



* TEMPERATURE: OVERNIGHT TEMPERATURES HAVE THE POTENTIAL TO DROP

BELOW FREEZING FOR SEVERAL HOURS...AND COULD FALL INTO THE MID 20S

IN NORMALLY COLDER AND ISOLATED AREAS...SUCH AS THE FRINGES OR

OUTSKIRTS OF THE GREATER PHOENIX AREA.



* IMPACTS: COLD-SENSITIVE PLANTS WILL BE HARMED IF LEFT

UNCOVERED. EXPOSED PLUMBING ALSO RUNS THE RISK OF BEING

DAMAGED. IN ADDITION...PETS SHOULD BE BROUGHT INSIDE OR

GIVEN ADEQUATE SHELTER IF POSSIBLE.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR

HIGHLY LIKELY. THESE CONDITIONS WILL DESTROY OR DAMAGE CROPS AND

OTHER SENSITIVE VEGETATION.

The average low for Phoenix at this time of year is 46 degrees.  --TS