Alert archive / Mississippi / Special Weather Statements in 2021
Special Weather Statement, NWS Memphis, TN
NWS Memphis, TN issued this special weather statement at Jul 16, 2021, 1:33 PM CDT for Calhoun County, Mississippi. It was in force for 27 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
- Jul 16, 2021, 1:33 PM CDT (18:33 UTC)
- Expired
- Jul 16, 2021, 2:00 PM CDT
- In force
- 27 min
- Issued by
- NWS Memphis, TN
County Calhoun County, MS
The radar
The Columbus AFB radar (KGWX), 85 km from the middle of the area, began a volume at 18:35 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, 6.6 hours before the alert went out and 129 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
- 681 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 567 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</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 Jul 16, 12:35 PM CDT, 58 minutes earlier.
Area forecast discussion, Jul 16, 12:35 PM CDT, 58 minutes before
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</html>Hazardous weather outlook, Jul 16, 3:15 AM CDT, 10 hours 18 minutes before
Hazardous Weather Outlook...Corrected National Weather Service Memphis TN 315 AM CDT Fri Jul 16 2021 ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017- 020>024-TNZ001>004-019>022-048>055-088>092-171015- 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- 306 AM CDT Fri Jul 16 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 Marginal Risk for severe thunderstorms over northeast Arkansas and the Missouri bootheel this afternoon. Damaging winds and locally heavy rainfall will be the primary threats. There is a Marginal Risk for flash flooding along and north of Interstate 40 this afternoon. .DAYS TWO THROUGH SEVEN...Saturday through Thursday There is a Marginal Risk for flash flooding over the all the Midsouth on Saturday. The threat for locally heavy rainfall will shift to north Mississippi Sunday morning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time. PWB
In the hours before
Special weather statement, Jul 16, 1:27 PM CDT, 6 minutes before
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</html>Special weather statement, Jul 16, 1:33 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Memphis TN
133 PM CDT Fri Jul 16 2021
MSZ022-023-161900-
Calhoun MS-Chickasaw MS-
133 PM CDT Fri Jul 16 2021
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 200 PM CDT
FOR...
Southern Calhoun County in northeastern Mississippi...
Southwestern Chickasaw County in northeastern Mississippi...
At 132 PM CDT...a strong thunderstorm producing winds in excess of 40
mph was located over Calhoun City, or 17 miles west of Houston,
moving northeast at 25 mph.
People in southern Calhoun and southwestern Chickasaw Counties should
monitor this storm closely.
LAT...LON 3387 8943 3407 8917 3386 8903 3374 8914
3374 8919 3372 8919 3372 8940
TIME...MOT...LOC 1832Z 234DEG 20KT 3385 8930
MJThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 1:57 PM CDT | Special Weather Statement | MEG | Pontotoc | 33 min |
| Jul 16, 2:27 PM CDT | Special Weather Statement | MEG | Chickasaw | 33 min |
| Jul 16, 2:56 PM CDT | Special Weather Statement | MEG | Itawamba, Lee, Monroe | 34 min |
| Jul 16, 3:07 PM CDT | Special Weather Statement | MEG | Monroe | 53 min |
| Jul 16, 5:02 PM CDT | Special Weather Statement | MEG | DeSoto | 28 min |
| Jul 16, 1:58 PM CDT | Special Weather Statement | MEG | Shelby | 32 min |
| Jul 16, 3:21 PM CDT | Special Weather Statement | MEG | Haywood | 24 min |
| Jul 16, 3:48 PM CDT | Special Weather Statement | MEG | Haywood, Madison | 27 min |
| Jul 16, 4:22 PM CDT | Special Weather Statement | MEG | Fayette | 38 min |
| Jul 16, 1:27 PM CDT | Special Weather Statement | MEG | Crittenden | 33 min |
Nearby
Special Weather Statements in Mississippi, 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.