Category: Forecast Blogs (Legacy)

Severe Weather Thursday Night – Friday Morning

Today

Expect a slight chance of a shower or thunderstorm. We’ll make it into the 80s this afternoon.

Thursday Into Friday Morning

This morning, the Storm Prediction Center included us within a Slight Risk of severe weather for Thursday overnight into Friday morning.

We should stay dry most of the day Thursday — and get in a rare [insert sport here] practice/game Thursday evening — but it will be very windy. Our NWS explains:

THUS EXPECTING STRONG SOUTH WINDS AT THE SURFACE BY AFTERNOON 
WITH GUSTS UP TO 40 MPH AT TIMES...AND A WIND ADVISORY WILL
LIKELY BE NECESSARY.

Our NWS says the weather models are in “great agreement” (unlike last week) that a squall line will form to our west Thursday night, reach the Tennessee River around 10-11pm, and hit us around 1am.

Damaging winds are the main concern.  We may see a few tornadoes inside the squall line.  The good news is the storms should begin to weaken right around the time they get to us. Here’s the NWS explanation:

STRENGTH OF SHEAR AND OVERALL SYSTEM INDICATES POTENTIAL FOR DAMAGING WINDS AND POSSIBLY A FEW ISOLATED QLCS TORNADOES ACROSS THE WESTERN HALF OF THE MID STATE...BEFORE ACTIVITY WEAKENS NEAR/EAST OF THE I-65 CORRIDOR AS IT OUTRUNS WHAT LITTLE INSTABILITY REMAINS. read more

Hit or Miss Storms Tomorrow

Models are suggesting off/on rain and thunderstorms tomorrow. They’ll be hit or miss.

For example, the RAP model at 10am keeps the showers west of us:

The Hi-Res NAM keeps the showers east of us:

The truth is probably somewhere in between.

Rain/Storms will increase with daytime heating, then wither away as the sun goes down. Storms are capable of hail and straight-line winds. Our NWS:

INSTABILITY INDICES INCREASE DURING THE DAYTIME HOURS TUESDAY AND WE COULD SEE ISOLATED ACTIVITY DEVELOP AND BECOME STRONG TO SEVERE WITH GUSTY WINDS AND HAIL. STORMS WILL BE DIURNALLY DRIVEN AND SHOULD WEAKEN BY NIGHTFALL. read more

The Week Ahead: 80s Thru Wed, then a Big Cold Front (Storms?)

Monday – Thursday

High temps will be in the low 80s, with only a slight chance of an afternoon/early evening shower or thunderstorm Tuesday, Wednesday, and Thursday.

Here’s the NWS weather-speak for Monday through Thursday:

LOW-LEVEL MOISTURE INCREASING AND INSTABILITY...ESPECIALLY IN THE
AFTERNOON...LIKELY TO SPELL ISOLATED-SCATTERED STORMS THRU THAT
PERIOD, ALTHOUGH MOST LOCATIONS WILL BE DRY.

The Big Cold Front

Our NWS expects a cold front to arrive during the wee hours of Friday morning.  The storm is expected to have little CAPE (thunderstorm building blocks), but there will be a lot of wind shear and plenty of moisture to work with.

This means

[WE] COULD SEE LOCALIZED SEVERE STORMS AS WELL AS MINOR FLASH FLOODING. read more

Beautiful Weekend Ahead. Storms Next Week?

Glorious Weekend

Our NWS issued a Frost Advisory, effective Saturday morning from 4am to 8am. Here’s why:

WITH NEARLY FULL RADIATIONAL COOLING SETTING UP, TEMPERATURES WILL SLIP BELOW 40 DEGREES MOST AREAS, WITH FROST DEVELOPING BY MORNING. WITH TEMPERATURES DROPPING DOWN TO 33-37 DEGREES IN OUTLYING AREAS WEST OF THE PLATEAU, HAVE ISSUED A FROST ADVISORY FOR THE 09Z-13Z [4AM-8AM] PERIOD. read more