Alert archive / Tennessee / Special Weather Statements in 2021
Special Weather Statement, NWS Memphis, TN
NWS Memphis, TN issued this special weather statement at Dec 5, 2021, 4:00 PM CST for Chester County, Tennessee. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Dec 5, 2021, 4:00 PM CST (22:00 UTC)
- Expired
- Dec 5, 2021, 4:30 PM CST
- In force
- 30 min
- Issued by
- NWS Memphis, TN
- Hail
- 0.25 in
- Wind
- 30
County Chester County, TN
The radar
The Memphis radar (KNQA), 89 km from the middle of the area, began a volume at 22:03 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 12:00Z, 10.0 hours before the alert went out and 114 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
- 42 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 465 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 188 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<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.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Dec 5, 3:57 PM CST, 3 minutes earlier.
Area forecast discussion, Dec 5, 3:57 PM CST, 3 minutes before
Area Forecast Discussion National Weather Service Memphis TN 357 PM CST Sun Dec 5 2021 .DISCUSSION... Showers and a few storms have been ongoing this afternoon across the Mid South. We expect a lull in the action for the next few hours before a cold front starts to move into the region later on tonight. The Storm Prediction Center continues to carry a Slight Risk for severe weather tonight into Monday morning for a large portion of the forecast area. We expect showers and storms to develop sometime after 10 PM this evening along that front as it moves south. The biggest question still remains is if any convection will really take advantage of the kinematics that this system would provide if storms can become surface based. Looking at the soundings this afternoon an inversion is still being shown for portions of the area as the best convection moves through. That's not to say that this will be a non event, but there is a conditional component to this event. The shear will not be a problem and helicity will begin to pile up along the front as well...embedded within the convection. This would point to a QLCS type event with bowing lines and segments that could produce damaging winds and a few tornadoes if it is able to take advantage of the atmosphere in place. The best chances to see severe weather look to be mainly north of I-40 and as the system moves in the profiles become less favorable for deeper convection. The good news is that this system should be out of the area after 10 AM...and we will clear out for the afternoon and evening hours. The active pattern continues through the week. The next impulse looks to move through by mid week. As of now it looks like most of the precip will be off to the south and east of the area. Have maintained some light POPs during that time frame as well. Southwesterly flow aloft will develop late in the week, with deeper moisture return and warm advection showers possible by Friday...and another system bringing the chance of some thunderstorms again by Saturday. && .AVIATION... Latest KNQA radar shows scattered showers and a few thunderstorms crossing the MS River and tracking NE at this hour. Widespread IFR/LIFR conditions are slowly starting to improve. The 3 eastern TAF sites might make it to VFR late this afternoon but not as confident that JBR will. Conditions will start to deteriorate again ahead of the front that will bring more showers and storms this evening into the overnight hours. Expect gusty S/SW winds with low cigs and vis and accompanying showers/storms as the front moves through. Maintained WS020 at MEM and introduced this at MKL tonight. Conditions will gradually improve and winds will shift to the NW with the FROPA Monday mid- morning. && .MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...None. TN...None. &&
Hazardous weather outlook, Dec 5, 1:04 PM CST, 2 hours 56 minutes before
Hazardous Weather Outlook National Weather Service Memphis TN 104 PM CST Sun Dec 5 2021 ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017- 020>024-TNZ001>004-019>022-048>055-088>092-062115- Alcorn-Benton MS-Benton TN-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 AR-Lee MS- 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- 104 PM CST Sun Dec 5 2021 This hazardous weather outlook is for portions of East Arkansas... the Missouri Bootheel...North Mississippi...and West Tennessee. .DAY ONE...This Afternoon and Tonight There is a Slight Risk for severe thunderstorms late tonight and early Monday morning over most of the Midsouth, specifically, north of a line from Charleston to Oxford to Savannah. Primary severe weather threat will be damaging winds. Secondary threats include brief tornadoes and flash flooding. Additionally, a secondary threat for large hail will exist over northeast Arkansas and the Missouri bootheel in the early overnight. .DAYS TWO THROUGH SEVEN...Monday through Saturday There is a Marginal Risk for severe thunderstorms Monday morning, over east central Arkansas, most of north Mississippi, and portions of southwest Tennessee near the Tennessee River. Primary threat will be damaging winds. Secondary threat will be flash flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed late tonight.
In the hours before
Special weather statement, Dec 5, 4:00 PM CST, 0 minutes before
Special Weather Statement
National Weather Service Memphis TN
400 PM CST Sun Dec 5 2021
TNZ052-053-090-052230-
Hardeman TN-Chester TN-Madison TN-
400 PM CST Sun Dec 5 2021
...A strong thunderstorm will impact portions of northeastern
Hardeman, south central Madison and west central Chester Counties
through 430 PM CST...
At 400 PM CST, Doppler radar was tracking a strong thunderstorm near
Chickasaw State Forest, moving northeast at 30 mph.
HAZARD...Winds in excess of 30 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Henderson, Chickasaw State Park, Chickasaw State Forest, Silerton,
Toone, Medon, Deanburg, Pinson, Teague, Montezuma and Parkburg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3529 8901 3536 8908 3554 8874 3537 8860
TIME...MOT...LOC 2200Z 244DEG 27KT 3537 8892
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPHThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 4, 10:00 PM CST | Dense Fog Advisory | MEG | Alcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 16 more | 11 hr |
| Dec 5, 4:24 PM CST | Severe Thunderstorm Warning | MEG | Chester, Decatur, Hardeman, Henderson, Madison | 51 min |
| Dec 5, 5:00 PM CST | Tornado Warning | MEG | Chester, Decatur, Henderson | 45 min |
Nearby
Special Weather Statements in Tennessee, 2021Every special weather statement 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.