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One product issued by NWS for: Tucson International Airport AZ
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Hard Freeze Warning

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
239 PM MST Tue Feb 19 2019

AZZ502-504>506-201500-
/O.CON.KTWC.HZ.W.0002.190220T0600Z-190220T1500Z/
Tohono O`odham Nation-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Including the cities of Sells, Tucson, Green Valley, Marana,
Vail, Picacho Peak State Park, Mammoth, and Oracle
239 PM MST Tue Feb 19 2019

...HARD FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 8 AM MST WEDNESDAY...

* IMPACTS...These temperatures will damage sensitive and
  unprotected plants, and damage unprotected outdoor plumbing.

* TEMPERATURES...Low temperatures in the mid to upper 20s.

* TIMING...Temperatures will begin to fall below freezing around
  or shortly after midnight Wednesday with the coldest readings
  near daybreak Wednesday morning.

* For a detailed view of the hazard area...visit
  weather.gov/Tucson and click on the Detailed Hazards Icon

* For a detailed view of the hazard area...visit
  weather.gov/Tucson and click on the Detailed Hazards Icon

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Hard Freeze Warning means widespread temperatures at or below
28 degrees are expected...with sub-freezing temperatures expected
for several hours. To prevent freezing and possible bursting of
outdoor water pipes...they should be wrapped...drained...or
allowed to drip slowly. Those that have in-ground sprinkler
systems should drain them...and cover above-ground pipes to
protect them from freezing. These conditions will also kill crops
and other sensitive vegetation.

&&

$$



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