Summary

• “Middle Tennessee is currently stuck in a late summertime pattern that will continue into the beginning of fall.” (NWS-Nashville Afternoon Forecast Discussion).
• Temps this week will be five to almost ten degrees above normal.
• Hit-or-Miss pop-up rain chances begin Tuesday afternoon and last through the rest of the week.

Rain & Storm Chances

Monday — Rain chances remain very low. The better rain chances will be northwest of Nashville.

Rest of the Week — The morning shift at NWS-Nashville thought Wednesday afternoon would bring the best chance of rain. read more

Summary

• Temperatures above normal
• Summertime humidity returns
• Hit or Miss pop up rain chances this week, rain chances increase after Tuesday

Rain & Storm Chances

Today — Temps soaring to 88° this afternoon should lift our sweaty, drippy air mass, producing a few pop up showers or weak storms somewhere in Middle Tennessee. The rain will probably be northwest of us, but we can’t rule out a shower. Without low instability, this will probably be a non-event, which will end as temps fall tonight. read more

Summary

• 1.5″ to 2″ Monday afternoon through Thursday afternoon is most likely; most of it falling Monday night into Tuesday morning. Flash flooding cannot be ruled out, but it is not expected.
• A Wind Advisory goes into effect Monday at 7 PM until Tuesday at 7 AM for winds 15 to 25 mph with gusts to 45 mph. Expect a few trees down, isolated power outages possible, and hazardous driving conditions.
• Severe thunderstorms and tornadoes are not currently a concern.
• This does not look like a repeat of Harvey, but stay connected to reliable weather information as this storm approaches.

Irma’s Rain

Late Monday night, Irma’s center will pass to our south.  See the red “L” below.

Irma is a large storm.  Before Irma’s center crosses I-65 in Alabama, rain will approach from our southeast. read more

This morning, Irma is a Cat 4 hurricane with maximum sustained winds of 130 MPH.

Sunrise revealed Irma’s eye striking Key West at 7:49 AM CDT:

Irma is a large storm. Although its center is in Key West, the moisture train extends to the North Carolina-Virginia border: read more

It May Rain and Storm Overnight

We aren’t sure when it’ll start.

Chances begin around 3 AM, or . . . around 10 AM . . . or sometime in between.  Models disagree!

(1)  The NAM3 model thinks 3 AM. Here it is coming down I-24 tonight: read more

Sunny, high 88°, with mid-60°s dewpoint will make a great Labor Day.

Early Tuesday Morning’s I-24 Special

Late tonight, rain and a few thunderstorms will form in the midwest, then dive southeast, pick up I-24, and arrive here in the wee hours of Tuesday morning. read more

Monday (Labor Day) will be fantastic, even with dewpoints in the mid 60°s bringing sticky and uncomfortable humidity.

Rain & Storms Tuesday

Rain should last most of Tuesday, clearing out Tuesday night. Most outdoor sports will suffer a rainout if we get 0.58″ (up from this morning’s 0.36″). read more

Early morning fog has formed around water. Fog will mix out soon as the sun does its thing, revealing a great day.

A great two days, actually. Sunday (Live on the Green) and Monday (Labor Day) will be fantastic, except for humidity rocketing back up. Dewpoints in the mid/upper 60°s today and tomorrow mean uncomfortable, hairdo ruining humidity. read more

Editor’s Note about Nashville’s Tornado Sirens Thursday Night

Y’all saw me frustrated (yet again) with Thursday night’s tornado sirens in Davidson County.

The main problems were:

(1) Tornado sirens alerted the entire county even though the Tornado Warning covered only part of the county. Areas unwarned were warned by the siren. Those outside the NWS warning area were confused when watching us and/or local TV. We’d say, for example, “Bellevue is not in the warning,” but y’all in Bellevue would clearly hear the tornado siren. It’s confusing. read more

Periscope from 4 pm Detailing Latest Thinking on Rain/Storms

Harvey's Rain and Storm (low tornado) Potential Tonight. Review and discussion. https://t.co/Fo8v6jqeu2

— NashSevereWx (@NashSevereWx) August 31, 2017 read more