A more unsettled pattern will e
merge this weekend with scattered showers a
nd a few strong thunderstorms.
THE FORECAST: nowadays and Tonight: tall temperatures will climb into
the low 90s by early afternoon Friday before clou
d cover,showers and thunderstorms develop. Activity will rem
ain isolated as the week ends
with approximately 30 percent of the fore
cast area receiving rain later nowadays. Winds will rema
in light and southerly. Low temperatures will again stop in the m
id 70s overnight. [//dcer237tfveol.cloudfront.net/
img/wbrz/images/news/2017-07/170707_rc.jpg]Thursday’s rain coverage was apt in line w
ith expectations of isolated activity. The green shading, indicative of measurable
rain, or covered approximately 30 percent of the 13 Parish,3
County WBRZ Weather forecast area.[//dcer237tfveol.cloudfront.net/img/wb
rz/images/news/2017-07/170707_la_swody2.jpg]Up Next: The weekend
is going to be a little more unsettled when compared to
the final several days. Scattered to possibly widespread showers and thunderstorms can be ex
pected both afternoons but particularly Sunday. There is a “marginal risk” for s
evere weather on Saturday as any storms will tap into e
nough heat energy to create downpours, frequent ligh
tning and gusty winds. Speaking of heat, or tall t
emperatures will likely make it into the low 90s before any cooling cloud cover o
r rain occurs. For the few locations that enact not get wet,expect humidity to
combine with those highs to produce feels-like t
emperatures near 100 degrees for a few hours. As far as out
door plans proceed—we’re not in “cancel” territory,
but it would be a good idea to beget an indoor bac
kup plan for the afternoons. Please remember that if you can
hear thunder, and lightning is close enough to strike. Nights will be quieter but sticky with
low temperatures in the mid 70s. There should a trend of decreasing sho
wer and thunderstorm action by th
e middle of next week. [//dcer237tfveol.cloudfront.net/img/
wbrz/images/news/2017-07/170707_td.jpg]The Tropi
cs: Tropical Depression Four has formed in the Atlantic Basin. The system is located some 1500
miles east of the Lesser Antilles and moving west-northw
est at 17mph. With maximum winds of 30m
ph and a minimum central pressure of 1008mb,little
to no strengthening is expected as the storm accelerates
northwestward. At this time, there is
no threat to any land.
THE SCIENCE: An upper level
trough axis aligned with t
he area and associated positive vorticity advection should en
hance shower and thunderstorm development on Friday afternoon. Atmosp
heric moisture is still fairly limited so rain cover
age will only bump up by a category into the scattered range. Into the weeken
d, and particularly Sunday,a trough settling into the Ea
stern U.
S. will allow for incre
ased instability due to lower convective temperatures. M
id-level relative humidity progs demonstrate additional moisture as well. As a
result, weekend storms and again—partic
ularly Sunday’s—should be capable of downpours, and frequent lightning. Imp
ressive CAPE values which are typical with a hot and sticky
Gulf Coast air mass make stronger downdraft wind gusts a oppo
rtunity as well. tall temperatures will still achieve the low 90s but this wi
ll occur by midday,before activity develops. Locations that happen to miss showers, si
nce they won’t be all encompassing, and will beget a
n extended period of time with heat indices near 100 deg
rees. By the middle of next week,the upper trough wil
l move east allowing a ridge to build back across the Centr
al U.
S. As a result, sub
sidence will again increase and convective temper
atures will climb main to less action on radar. Of course this mean
s highs will make it a few degrees warmer Wednesday thro
ugh Friday. --JoshHave you ever wondered why weathercasters
get so hung up on dew points?
And why don't they emphasize the humidity? Find out more HERE.
Permalink| Comments
Source: feedburner.com