A Winter Storm Watch is now in effect for the entire area on
Tuesday and Tuesday night, according to the National Weather Service Briefing,
Jan. 27, 9 a.m. A Winter Storm Warning will likely be issued this afternoon for
Tuesday.
All forms of winter precipitation will be possible Tuesday
and Tuesday night beginning as a wintry mix, including ice accumulations and
then transitioning to snow overnight in some locations. Snow accumulations are
likely mainly SW Mississippi and Florida Parishes (East Baton Rouge, East
Feliciana, Livingston, St. Helena, St. Tammany, Tangipahoa, Washington and
Feliciana) by Wednesday morning.
Freezing rain and sleet are expected to start early Tuesday
morning and persist most of the day, particularly over the Greater New Orleans
area and the Mississippi Gulf Coast.
Estimated duration is as follows:
Baton Rouge: below freezing around 2 a.m. Tuesday; onset of
winter precipitation around 6 a.m. Tuesday ending around daybreak Wednesday;
above freezing around noon Thursday.
New Orleans: below freezing around 3 p.m. Tuesday; onset of
sleet around 7 a.m. Tuesday, sleet/freezing rain after 3 p.m. ending around 9
a.m. Wednesday; above freezing around 10 a.m. Thursday.
Northshore: below freezing before dawn Tuesday; onset of
winter precipitation around 6 a.m. Tuesday ending around 7 a.m. Wednesday;
above freezing around noon Thursday.
A hard freeze duration of below freezing temperatures can be
48 to 60 hours from midnight Monday through noon Thursday. Moderate freeze
expected Tuesday night/Wednesday morning with mid 20s to lower 30s. Hard freeze
expected Wednesday night/Thursday morning with teens over much of the area and
20-25 south of tidal lakes.
These potential impacts are HIGHLY dependent on the strength
of the upper disturbance and the amount of moisture and precipitation over any
given location. This is a very fluid situation and all interests in the
forecast area will need to monitor this situation very closely.
For more information, visit http://innovation.srh.noaa.gov/ertool/
No comments:
Post a Comment