Alert archive / Tennessee / Frost Advisories in 2019

Frost Advisory 1, NWS Memphis, TN

April 14, 201912 counties in Tennessee

NWS Memphis, TN issued this frost advisory at Apr 14, 2019, 3:02 PM CDT for 12 counties in Tennessee. It took effect at Apr 15, 2019, 1:00 AM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Apr 14, 2019, 3:02 PM CDT (20:02 UTC)
In effect from: Apr 15, 2019, 1:00 AM CDT
Expired: Apr 15, 2019, 7:39 AM CDT
In force: 7 hr
Issued by: NWS Memphis, TN

Counties Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Gibson County, TN, Henderson County, TN, Henry County, TN, Madison County, TN, Obion County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 126 km from the middle of the area, began a volume at 20:00 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

Birmingham, AL (KBMX), launched 12:00Z, 8.0 hours before the alert went out and 352 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 984 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 46 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 frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Memphis, TN wrote its last area forecast discussion before this frost advisory went out at Apr 14, 12:25 PM CDT, 2 hours 37 minutes earlier.

Area forecast discussion, Apr 14, 12:25 PM CDT, 2 hours 37 minutes before

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Hazardous weather outlook, Apr 14, 3:02 PM CDT, 0 minutes before

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In the hours before

Local storm report, Apr 14, 11:17 AM CDT, 3 hours 45 minutes before

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Local storm report, Apr 14, 11:50 AM CDT, 3 hours 12 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 13, 7:48 PM CDT	Areal Flood Warning	MEG	DeSoto	4 hr
Apr 13, 8:38 PM CDT	Special Weather Statement	MEG	Yalobusha	22 min
Apr 13, 9:09 PM CDT	Special Weather Statement	MEG	Calhoun	36 min
Apr 13, 9:16 PM CDT	Areal Flood Advisory	MEG	Coahoma, Quitman	3 hr
Apr 13, 9:30 PM CDT	Tornado Warning Tornado observed	MEG	Chickasaw	27 min
Apr 13, 10:09 PM CDT	Special Weather Statement	MEG	Chickasaw, Pontotoc	36 min
Apr 13, 10:21 PM CDT	Tornado Warning	MEG	Pontotoc, Union	39 min
Apr 13, 10:26 PM CDT	River Flood Warning	MEG	Tate, Tunica	29 hr
Apr 13, 10:47 PM CDT	Severe Thunderstorm Warning	MEG	Monroe	43 min
Apr 13, 10:52 PM CDT	Areal Flood Advisory	MEG	Calhoun, Chickasaw, Lafayette, Pontotoc, Union	4 hr
Apr 13, 11:02 PM CDT	Special Weather Statement	MEG	Union	28 min
Apr 13, 11:06 PM CDT	Tornado Warning	MEG	Itawamba, Monroe	39 min
Apr 13, 11:25 PM CDT	Special Weather Statement	MEG	Lee, Prentiss	50 min
Apr 13, 11:32 PM CDT	Flash Flood Warning	MEG	Monroe	3 hr
Apr 13, 11:40 PM CDT	Tornado Warning Tornado observedConsiderable damage threat	MEG	Itawamba, Tishomingo	24 min
Apr 13, 11:48 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Monroe	42 min
Apr 14, 12:31 AM CDT	Special Weather Statement	MEG	Monroe	44 min
Apr 14, 12:06 PM CDT	River Flood Advisory	MEG	Coahoma, Tunica	13 days
Apr 14, 2:25 PM CDT	River Flood Warning	MEG	Lafayette, Marshall, Union	22 hr
Apr 14, 2:21 PM CDT	River Flood Warning	MEG	Lake	37 days
Apr 14, 2:26 PM CDT	River Flood Warning	MEG	Dyer, Gibson, Obion	7 days

Nearby

Frost Advisories in Tennessee, 2019 Every frost advisory in 2019

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.