Mercer

... Freeze warning in effect from 2 am to 8 am EDT Sunday...
... Freeze watch in effect from late Sunday night through Monday
morning...

The National Weather Service in Pittsburgh has issued a freeze
warning... which is in effect from 2 am to 8 am EDT Sunday. A
freeze watch has also been issued. This freeze watch is in effect
from late Sunday night through Monday morning. The frost advisory
is no longer in effect.

* Temperatures... in the lower 30s.

* Impacts... unprotected outdoor plants would likely be damaged or
killed.


Precautionary/preparedness actions...

A freeze warning means sub-freezing temperatures are imminent or
highly likely. These conditions will kill crops and other
sensitive vegetation.

A freeze watch means sub-freezing temperatures are possible.
These conditions could kill crops and other sensitive vegetation.

... Record low mean temperature tied at Pittsburgh yesterday...

The high temperature yesterday was 51 and the low was 37. This
gives a mean temperature of 44 which ties the record low mean
temperature for may 24th. The record was set in 1956.


... Record low temperature tied at Pittsburgh today...

The low this morning was 33. This ties the record low
temperature for may 25th. The record was set in 1925.


... Coldest temperature so late in the season tied at Pittsburgh...

The low of 33 this morning tied for the coldest temperature so
late in the Spring season. The latest occurrence of 33 degrees or
lower was set may 25th 1925.