Alert archive / Tennessee / Frost Advisories in 2022

Frost Advisory 2, NWS Memphis, TN

March 31, 202217 counties in Mississippi; 21 counties in Tennessee; 10 counties in Arkansas

NWS Memphis, TN issued this frost advisory at Mar 31, 2022, 2:50 AM CDT for 17 counties in Mississippi; 21 counties in Tennessee; 10 counties in Arkansas. It took effect at Apr 1, 2022, 3:00 AM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Mar 31, 2022, 2:50 AM CDT (07:50 UTC)
In effect from: Apr 1, 2022, 3:00 AM CDT
Expired: Apr 1, 2022, 8:48 AM CDT
In force: 6 hr
Issued by: NWS Memphis, TN

All 48 counties

Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Lee County, AR, Mississippi County, AR, Phillips County, AR, Poinsett County, AR, St. Francis County, AR, Alcorn County, MS, Benton County, MS, Calhoun County, MS, Chickasaw County, MS, Coahoma County, MS, DeSoto County, MS, Lafayette County, MS, Marshall County, MS, Panola County, MS, Pontotoc County, MS, Quitman County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tunica County, MS, Union County, MS, Yalobusha County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 37 km from the middle of the area, began a volume at 07:54 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

Little Rock, AR (KLZK), launched 00:00Z, 7.8 hours before the alert went out and 58 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: 4 J/kg
Mixed-layer CIN: -309 J/kg
Mixed-layer LCL: 444 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: -127 m²/s²
0-3 km storm-relative helicity: -130 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 Mar 30, 11:36 PM CDT, 3 hours 14 minutes earlier.

Area forecast discussion, Mar 30, 11:36 PM CDT, 3 hours 14 minutes before

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Hazardous weather outlook, Mar 31, 12:33 AM CDT, 2 hours 17 minutes before

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In the hours before

Local storm report, Mar 31, 2:07 AM CDT, 43 minutes before

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Local storm report, Mar 31, 2:12 AM CDT, 38 minutes before

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Local storm report, Mar 31, 2:13 AM CDT, 37 minutes before

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Local storm report, Mar 31, 2:14 AM CDT, 36 minutes before

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Local storm report, Mar 31, 2:19 AM CDT, 31 minutes before

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Local storm report, Mar 31, 2:31 AM CDT, 19 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
Mar 30, 7:11 PM CDT	Tornado Warning	MEG	Itawamba, Lee, Monroe	34 min
Mar 30, 7:22 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Monroe	53 min
Mar 30, 7:25 PM CDT	Tornado Warning Tornado observed	MEG	Itawamba, Monroe	35 min
Mar 30, 9:37 PM CDT	River Flood Warning	MEG	Crockett, Dyer, Lauderdale	6 hr

Nearby

Frost Advisories in Tennessee, 2022 Frost Advisories in Mississippi, 2022 Frost Advisories in Arkansas, 2022 Every frost advisory in 2022

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.