Alert archive / Mississippi / Frost Advisories in 2022

Frost Advisory 3, NWS Memphis, TN

April 8, 202222 counties in Mississippi; 21 counties in Tennessee; 10 counties in Arkansas

NWS Memphis, TN issued this frost advisory at Apr 8, 2022, 5:55 AM CDT for 22 counties in Mississippi; 21 counties in Tennessee; 10 counties in Arkansas. It took effect at Apr 9, 2022, 3:00 AM CDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Apr 8, 2022, 5:55 AM CDT (10:55 UTC)
In effect from: Apr 9, 2022, 3:00 AM CDT
Expired: Apr 9, 2022, 7:22 AM CDT
In force: 4 hr
Issued by: NWS Memphis, TN

All 53 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, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Marshall County, MS, Monroe County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo 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), 49 km from the middle of the area, began a volume at 10:54 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

Jackson, MS (KJAN), launched 00:00Z, 10.9 hours before the alert went out and 318 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: 34 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 2279 m above ground
0-6 km bulk shear: 94 kt
0-1 km storm-relative helicity: -80 m²/s²
0-3 km storm-relative helicity: -32 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 8, 4:26 AM CDT, 1 hour 29 minutes earlier.

Area forecast discussion, Apr 8, 4:26 AM CDT, 1 hour 29 minutes before

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Hazardous weather outlook, Apr 8, 3:06 AM CDT, 2 hours 49 minutes before

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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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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 8, 3:05 AM CDT	Freeze Watch	MEG	Clay, Craighead, Greene, Poinsett	12 hr
Apr 8, 3:14 PM CDT	Freeze Warning	MEG	Clay, Greene	11 hr

Nearby

Frost Advisories in Mississippi, 2022 Frost Advisories in Tennessee, 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.