Alert archive / Mississippi / Winter Weather Advisories in 2021
Winter Weather Advisory 5, NWS Memphis, TN
NWS Memphis, TN issued this winter weather advisory at Feb 12, 2021, 9:32 PM CST for 8 counties in Mississippi. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Feb 12, 2021, 9:32 PM CST (03:32 UTC)
- Expired
- Feb 13, 2021, 4:06 AM CST
- In force
- 7 hr
- Issued by
- NWS Memphis, TN
Counties Calhoun County, MS, Chickasaw County, MS, Itawamba County, MS, Lee County, MS, Monroe County, MS, Pontotoc County, MS, Prentiss County, MS, Tishomingo County, MS
The radar
The Columbus AFB radar (KGWX), 51 km from the middle of the area, began a volume at 03:31 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, 3.5 hours before the alert went out and 132 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 737 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather 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 winter weather advisory went out at Feb 12, 5:31 PM CST, 4 hours 1 minute earlier.
Area forecast discussion, Feb 12, 5:31 PM CST, 4 hours 1 minute before
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</html>Hazardous weather outlook, Feb 12, 5:38 AM CST, 15 hours 54 minutes before
Hazardous Weather Outlook National Weather Service Memphis TN 538 AM CST Fri Feb 12 2021 ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017- 020>024-TNZ001>004-019>022-048>055-088>092-131345- Alcorn-Benton-Calhoun-Carroll-Chester-Chickasaw-Clay-Coahoma- Craighead-Crittenden-Crockett-Cross-DeSoto-Decatur-Dunklin-Dyer- Fayette-Gibson-Greene-Hardeman-Hardin-Haywood-Henderson-Henry- Itawamba-Lafayette-Lake-Lauderdale-Lee-Madison-Marshall-McNairy- Mississippi-Monroe-Obion-Panola-Pemiscot-Phillips-Poinsett- Pontotoc-Prentiss-Quitman-Shelby-St. Francis-Tallahatchie-Tate- Tippah-Tipton-Tishomingo-Tunica-Union-Weakley-Yalobusha- 538 AM CST Fri Feb 12 2021 This hazardous weather outlook is for portions of East Arkansas... the Missouri Bootheel...North Mississippi...and West Tennessee. .DAY ONE...Today and Tonight There is a chance of light freezing rain late tonight into Saturday over portions of Northeast Mississippi. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Wind chill values will fall into the single digits at times through Wednesday. Below zero wind chills are possible across mainly northern areas of the Mid-South Sunday through Tuesday mornings. There is increasing confidence in a significant winter storm late Sunday into Monday. Significant accumulations of snow, sleet and ice are possible across much of the Mid-South. Another round of winter weather is possible Wednesday into Thursday. Please refer to the latest forecasts in the coming days for details regarding the evolution of the cold air surge and potential wintry weather. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time.
In the hours before
Special weather statement, Feb 12, 3:36 PM CST, 5 hours 56 minutes before
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</html>The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 13, 2:53 PM CST | Winter Storm Warning | MEG | Alcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 16 more | 54 hr |
| Feb 13, 2:53 PM CST | Wind Chill Advisory | MEG | Carroll, Crockett, Dyer, Gibson, Haywood, Henry and 7 more | 21 hr |
Nearby
Winter Weather Advisories in Mississippi, 2021Every winter weather 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.