Alert archive / Tennessee / Areal Flood Advisories in 2021

Areal Flood Advisory 32, NWS Nashville, TN

June 2, 2021Maury County, Williamson County, Tennessee

NWS Nashville, TN issued this areal flood advisory at Jun 2, 2021, 2:55 PM CDT for Maury County, Williamson County, Tennessee. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 2, 2021, 2:55 PM CDT (19:55 UTC)
Expired
Jun 2, 2021, 6:00 PM CDT
In force
3 hr
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties Maury County, TN, Williamson County, TN

The radar

The Nashville radar (KOHX), 67 km from the middle of the area, began a volume at 19:59 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.9 hours before the alert went out and 54 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2021-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2021-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 304 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
4 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
607 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
304 m²/s²
0-3 km storm-relative helicity
417 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Nashville, TN wrote its last area forecast discussion before this areal flood advisory went out at Jun 2, 2:39 PM CDT, 16 minutes earlier.

Area forecast discussion, Jun 2, 2:39 PM CDT, 16 minutes before
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Hazardous weather outlook, Jun 2, 3:36 AM CDT, 11 hours 19 minutes before
Hazardous Weather Outlook
National Weather Service Nashville TN
336 AM CDT Wed Jun 2 2021

TNZ005>011-023>034-056>066-075-077>080-093>095-030845-
Stewart-Montgomery-Robertson-Sumner-Macon-Clay-Pickett-Houston-
Humphreys-Dickson-Cheatham-Davidson-Wilson-Trousdale-Smith-Jackson-
Putnam-Overton-Fentress-Perry-Hickman-Lewis-Williamson-Maury-
Marshall-Rutherford-Cannon-De Kalb-White-Cumberland-Bedford-Coffee-
Warren-Grundy-Van Buren-Wayne-Lawrence-Giles-
336 AM CDT Wed Jun 2 2021

This Hazardous Weather Outlook is for Middle Tennessee.

.DAY ONE...Today and tonight.

A few strong to briefly severe storms are possible this afternoon
and evening. Damaging winds will be the main threat, but a brief
tornado cannot be ruled out.

A few heavy downpours will occur, mainly along and west of I-65.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A few strong to briefly severe storms are possible Thursday.
Damaging winds will be the main threat with any severe storms.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any
information about observed severe weather to the NWS while following
all local, state, and CDC guidelines.

13

The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 1, 11:38 PM CDTSpecial Weather StatementOHXDavidson37 min
Jun 2, 3:31 PM CDTSpecial Weather StatementOHXMarshall44 min
Jun 2, 3:50 PM CDTSevere Thunderstorm WarningOHXBedford, Marshall24 min
Jun 2, 4:07 PM CDTSpecial Weather StatementOHXGiles38 min

Nearby

Areal Flood Advisories in Tennessee, 2021Every areal flood advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.