Williams Bay, WI, Weather: 7/11/19

Yesterday was humid, warm and still in Williams Bay, WI.  The humidity was unbearable by my delicate New Mexico acclimation.

This morning has been sunny, mild and still.  I didn’t go for a run this morning, as I was up half the night trying to get photos of the International Space Station (unsuccessfully).

From the NWS in Milwaukee, WI:  high pressure is moving into the area, which should help clear out the skies.  By this afternoon, mild temperatures, drier air and light winds will be the key features.

The NWS in Milwaukee, WI, forecasts (for Williams Bay, WI) a mostly sunny day, with a high temperature of 79 F.  The winds will be from the north at 10 mph.  This evening will be mostly clear, with a low temperature of 56 F.  The winds will be from the north at 5 mph, becoming calm in the evening.

The visible satellite imagery shows very few clouds over the state this morning.  This image has been excluded from today’s post.

The 12Z upper air sounding from Green Bay, WI, shows moisture has decreased dramatically from yesterday.  There was 0.98 inches of precipitable water in the column.  There was no Convective Available Potential Energy (CAPE), no Convective Inhibition (CIN), and the Lifted Condensation Level (LCL) was 395 m.  There was no thermal inversion near the surface and the 0-3 km lapse rate was 3.8 C/km.  The hodograph shows that the low-level shear was 14 kts (due mostly to directional changes) and the deep-layer shear was 26 kts (due mostly to directional changes).

The surface observations chart (from the SPC Mesoscale Analysis Map) shows mild temperatures and high surface humidity.  The skies are sunny (according to the sensors) and the winds are light and from the south.

The surface pressure chart (from the SPC Mesoscale Analysis Map) shows that are no strong pressure systems or gradients over Wisconsin this morning.  The RAP shows pressure will decrease with diurnal heating in the next six hours.

The NAM 250 mb chart shows light, northwesterly flow over the state today.

The NAM 850 mb chart shows some no thermal advection over the state today.  This chart has been excluded from today’s post.

The HRRR simulated reflectivity chart and 12-hr precipitation chart show very few showers or thunderstorms today.  These chart have been excluded from today’s post.

The HRRR predicts that the high temperatures will peak in the low 80s F today.

The HRRR shows that the dewpoints will drop into the upper 50s F by this afternoon.

The HRRR shows that strong gusts are unlikely today.  This chart has been excluded from today’s post.

The HRRR predicts only a few clouds this evening.  This chart has been excluded from today’s post.

Today is still humid by my standards, but it should be a nice day for those acclimated to this climate.  We will be flying out of Chicago back to the southwest this evening.

Thank you for reading my post.

Sources:
The forecasts from the National Weather Service are from The NWS Homepage
The upper air soundings and mesoscale analysis plots are from the Storm Prediction Center website.
The satellite data, model data, and forecasted soundings are from College of DuPage – SATRAD

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About highplainschasing

This blog is about my tales in storm chasing. My name is Seth Price and I am an instrumentation instructor at New Mexico Tech. My amateur radio call sign is N3MRA.
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