National Weather Service Forecast for: Omro, WI
Issued by: National Weather Service Green Bay, WI
Updated: Tue, 14-Aug-2018 1:38pm CDT

Omro
 
  Wednesday

Wednesday: Areas Of Fog
Areas Of Fog
Thursday

Thursday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Friday

Friday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
Saturday

Saturday: Sunny
Sunny
Sunday

Sunday: Sunny
Sunny
Monday

Monday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Tuesday

Tuesday: Showers And Thunderstorms Likely
Showers And T-Storms Likely
  Hi 83 °F ↓ Hi 80 °F Hi 81 °F Hi 84 °F Hi 85 °F Hi 80 °F Hi 77 °F
 
Tonight

Tonight: Mostly Cloudy then Patchy Fog
Mostly Cloudy then Patchy Fog
Wednesday
Night
Wednesday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Thursday
Night
Thursday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Friday
Night
Friday Night: Slight Chance Showers And Thunderstorms then Mostly Clear
Slight Chance Showers And T-Storms then Mostly Clear
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday
Night
Monday Night: Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Chance Showers And T-Storms then Showers And T-Storms Likely
 
Lo 65 °F Lo 64 °F Lo 62 °F Lo 61 °F Lo 63 °F Lo 64 °F Lo 61 °F  

 

Tonight
 
Patchy fog and a slight chance of rain showers after 3am. Mostly cloudy, with a low around 65. East wind around 6 mph. Chance of precipitation is 20%.
Wednesday
 
Areas of fog before 7am, then areas of fog and a chance of showers and thunderstorms. Partly sunny. High near 83, with temperatures falling to around 80 in the afternoon. East southeast wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Wednesday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Thursday
 
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Northeast wind around 7 mph. Chance of precipitation is 30%.
Thursday Night
 
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 62. North northeast wind 2 to 6 mph. Chance of precipitation is 30%.
Friday
 
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 20%.
Friday Night
 
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 61.
Saturday
 
Sunny, with a high near 84.
Saturday Night
 
Mostly clear, with a low around 63.
Sunday
 
Sunny, with a high near 85.
Sunday Night
 
Partly cloudy, with a low around 64.
Monday
 
A chance of showers and thunderstorms after 7am. Partly sunny, with a high near 80.
Monday Night
 
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Tuesday
 
Showers and thunderstorms likely. Partly sunny, with a high near 77.

 

Forecast from NOAA-NWS for Omro, WI.

000
FXUS63 KGRB 142351
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
651 PM CDT Tue Aug 14 2018

Updated aviation portion for 00Z TAF issuance

.SHORT TERM...Tonight and Wednesday
Issued at 350 PM CDT Tue Aug 14 2018

Forecast concerns are scattered thunderstorms across northern
Wisconsin into the early evening, patchy dense fog overnight and
scattered showers and isolated thunder again on Wednesday.

Latest radar and satellite trends indicated a broken area of
thunderstorms along a cold front stretching from the eastern UP to
north of MSP late this afternoon. Storms have been somewhat
pulse-like in nature and overall poorly organized. Low-level moisture
pooling right along and just ahead of the front has allowed SBCapes
to creep into the 1500 to 2000 J/kg from Northern Wisconsin to
MSP with modest mid-level lapse rates. Deep layer shear is modest
generally 15 to 20 kts except right along the UP/WI border where
values are closer to 30 kts. HRRR and NAMNest are generally
similar advertising current convection to be at its strongest
between now and perhaps 23 UTC before quickly waning after sunset
given weak upper-level support. The bulk of this activity is
expected to impact mainly areas north of highway 64. The storms
are not expected to reach severe limits before dissipating, but
are capable of producing perhaps some small hail and brief gusty
winds especially across far northern Wisconsin for the next
couple of hours.

Weak surface boundary is forecast to slowly drop south into
central and eastcentral Wisconsin on Wednesday morning. In
addition, weak nearly cutoff upper-level low pressure will also
drift into southwest Wisconsin by late morning with boundary layer
winds turning SE ahead of it. The combination of these features
should locally enhance low-level convergence across central
Wisconsin by midday. Combination of more focused low-level
convergence, residual low-level moisture and increasing
insolation later in the morning, should allow for a disorganized
area of showers and isolated thunderstorms to develop around
midday Wednesday. Again, deep layer shear will be weak thus storms
are expected to be disorganized and pulse-like in nature with
brief heavier downpours possible.

Overnight tonight, patchy dense fog is also possible once again
mainly across northern and central sections especially in areas
that receive some appreciable rainfall this evening.

.LONG TERM...Wednesday Night Through Tuesday
Issued at 350 PM CDT Tue Aug 14 2018

Not expecting any high impact weather through much of the extended
forecast. There may be a few showers and thunderstorms over next
couple days, with a better chance of more widespread showers and
thunderstorms very late in the weekend into early next week. Near
normal temperatures can be expected through Thursday before above
normal temps arrive over the weekend. Late in the forecast period,
trends are toward temperatures that cool to near normal early
next week.

Wednesday night through Thursday night: This time period will
consist of increased cloud cover along with intermittent rain
showers. Overall instability looks to be lacking, which would only
favor a few afternoon rumbles of thunder, mainly if there are any
breaks in the cloud cover. The main driver of these rain showers
and possible thunderstorms will be a couple shortwave troughs
expected to slide through the area. The first wave is expected to
slide through northern Illinois Wednesday night into southern
Lower Michigan by Thursday morning. Thursday afternoon would be
the next chance, and probably the best chance, of seeing some pop
up afternoon rain showers and perhaps a rumble of thunder;
however, the CWA is expected to between two shortwaves at that
time, yet still in a general troughing pattern. The next
shortwave, is progged to slide mainly to the south of the CWA
Thursday night, perhaps only bringing a small chance of rain
showers to the Fox Valley. Not expecting a drought buster, just
some generally light rain showers. Highs will be near normal for
this time period with highs mainly in the 70s and overnight lows
in the 50s to around 60.

Friday through Sunday: The main trough axis and the aforementioned
shortwaves will shift off to the east of the area through this
time period. This will allow for a ridging pattern to set up
across the CWA, both aloft and at the surface. Winds will remain
light and there may be some radiation fog formation at night with
clear skies and calm winds, especially inland. Daytime highs will
be above normal with most locations expected to reach into the
80s, while overnight lows are expected to drop into 50s to around
60.

Sunday night through Tuesday: Things will become more active for
this time period as a broad troughing pattern is expected to dig
into much of the central and eastern CONUS. This is indicated by
each of the long-range models. There continue to be some
differences in timing, so exact detail will need to be pinned down
closer to this rain event. Models currently have an associated
cold front that would slide through the area Sunday night through
early Monday afternoon. The timing difference is largely between
the EC/GFS, where the GFS is more progressive at moving the front
through the CWA. This is something to monitor, as seems to rush
things a bit faster later in the summer season into the early
fall. Regardless, Sunday into Monday, looks to be fairly
unsettled. Subsidence associated with high pressure on the back
side of the front, will allow for clearing conditions and quieter
weather Monday night into Tuesday. Temperatures will cool to
normal or possibly a bit below, depending on how strong/deep the
trough is across the area.
&&

.AVIATION...for 00Z TAF Issuance
Issued at 650 PM CDT Tue Aug 14 2018

As of 23Z a cold front was stalled across northern Wisconsin and
showers and thunderstorms in the north were weakening or moving
out of the forecast area. There should be a period of quiet
weather once the showers and storms have departed, but fog is then
a concern due to light winds. Cloud cover could hamper fog
development, but this afternoon`s rainfall may counter that
across the north. Kept the mention of fog at all TAF sites that
was in the previous forecast. Precipitation timing and potential
are the main concerns on Wednesday as a mid level short wave
approaches from the southwest. Mesoscale models bring convection
into the area from the southwest during the morning as more
showers and storms fire in the vicinity of the frontal boundary.
The morning rain is then forecast to push east as more
significant convection fires in central Wisconsin during the
afternoon. Confidence in the timing and exact location of
Wednesday`s showers and storms is low.
&&

.GRB WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

SHORT TERM.....ESB
LONG TERM......Cooley
AVIATION.......MG

NWS GRB Office Area Forecast Discussion