Alert archive / Tennessee / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 121, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Jun 11, 2023, 6:35 PM CDT for Marshall County, Mississippi; Fayette County, Shelby County, Tennessee. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 11, 2023, 6:35 PM CDT (23:35 UTC)
- Expired
- Jun 11, 2023, 7:15 PM CDT
- In force
- 40 min
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Marshall County, MS, Fayette County, TN, Shelby County, TN
The radar
The Memphis radar (KNQA), 41 km from the middle of the area, began a volume at 23:35 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 11, 2:47 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 11.6 hours before the alert went out and 297 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
- 77 J/kg
- Mixed-layer CIN
- -164 J/kg
- Mixed-layer LCL
- 1030 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 199 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 11, 3:37 PM CDT, 2 hours 58 minutes earlier.
Area forecast discussion, Jun 11, 3:37 PM CDT, 2 hours 58 minutes before
Area Forecast Discussion National Weather Service Memphis TN 337 PM CDT Sun Jun 11 2023 ...New SYNOPSIS, DISCUSSION... .SYNOPSIS... Issued at 257 PM CDT Sun Jun 11 2023 An unsettled pattern will continue across the Midsouth for the upcoming work week but cooler temperatures will be a welcomed change for the first half of the week. Monday should be mostly dry with high temperatures in the upper 70s to low 80s. However, showers and thunderstorms are expected each day Tuesday into next weekend. Temperatures will trend a few degrees warmer each day with 90s returning area wide by Saturday. 30/Sirmon && .DISCUSSION...(This evening through next Saturday) Issued at 257 PM CDT Sun Jun 11 2023 Showers and thunderstorms are developing rapidly across the region. An Enhanced Risk of severe thunderstorms exists for nearly all of the Mid South as a cold front moves through the region this afternoon and evening. A severe thunderstorm watch has been issued for all of the Midsouth through 10 pm tonight although portions of the watch will likely be cancelled after storms move through and stabilize a given region. Area upper air soundings show sufficient dry air aloft to result in an enhanced risk for both large hail and damaging wind, with the greater threat evolving into damaging wind later this evening. 25-35kt 0-3km shear should be sufficient to maintain healthy updrafts in storm clusters, but likely too little to result in any significant tornado threat. Hail and damaging wind will be the main threats from any severe thunderstorms, but frequent lightning and heavy rainfall will pose a threat to any outdoor events, even from sub- severe thunderstorms. Transient high pressure will build in behind the cold front later tonight resulting in mostly dry conditions Monday. However, zonal to weak northwest flow will return Tuesday. Several impulses will traverse the mean flow Tuesday through Saturday resulting in multiple rounds of showers and thunderstorms. At this time there is no indication that widespread severe storms are likely. Heavy rainfall over several days could develop into a flooding threat. Temperatures tomorrow should be seasonably pleasant, featuring highs in the middle 70s to low 80s. We should see our coolest temperatures of the forecast period Tuesday morning when areas near the Tennessee River may dip as low as the middle 50s. Expect high temperatures to trend a few degrees warmer each day with 90s returning area wide by Saturday. 30/Sirmon && .AVIATION... (18Z TAFS) Issued at 1213 PM CDT Sun Jun 11 2023 Current VFR conditions will diminish this afternoon as a result of a cold frontal passage. Gusty wind conditions are anticipated to continue ahead of the FROPA and ongoing the VCTS/TSRA at the terminals. Latest guidance is suggesting KJBR will miss the brunt of the broken line, but all other TAF sites could experience low CIGS and brief periods of lower VSBYS during TSRA. The line is moving quickly with current WSW flow veering NE as a result of the passage. Possible BR conditions could happen after thunder activity diminishes, but lack of confidence prohibited in this TAF cycle. MVFR/IFR conditions are more probable during 20Z-02Z as the front moves through the region, but heavy rainfall could result in brief periods of lower VSBYS. DNM && .MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...None. TN...None. && PUBLIC FORECAST...JDS AVIATION...DNM
In the hours before
Local storm report, Jun 11, 6:02 PM CDT, 33 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 |
|---|---|---|---|---|
| Jun 10, 7:09 PM CDT | Special Weather Statement | MEG | Itawamba, Monroe, Prentiss, Tishomingo | 51 min |
| Jun 10, 7:18 PM CDT | Areal Flood Advisory | MEG | Union | 117 min |
| Jun 11, 5:07 PM CDT | Severe Thunderstorm Warning | MEG | DeSoto | 38 min |
| Jun 11, 5:29 PM CDT | Severe Thunderstorm Warning | MEG | Tunica | 19 min |
| Jun 11, 5:35 PM CDT | Severe Thunderstorm Warning | MEG | DeSoto | 20 min |
| Jun 11, 5:36 PM CDT | Severe Thunderstorm Warning | MEG | Benton, Marshall | 39 min |
| Jun 11, 5:47 PM CDT | Severe Thunderstorm Warning | MEG | DeSoto, Marshall, Tate | 43 min |
| Jun 11, 5:58 PM CDT | Severe Thunderstorm Warning | MEG | DeSoto | 47 min |
| Jun 11, 6:14 PM CDT | Severe Thunderstorm Warning | MEG | Alcorn, Tishomingo | 46 min |
| Jun 11, 6:24 PM CDT | Severe Thunderstorm Warning | MEG | Lafayette, Panola | 51 min |
| Jun 11, 6:29 PM CDT | Severe Thunderstorm Warning | MEG | Alcorn, Prentiss, Tippah, Tishomingo | 46 min |
| Jun 11, 6:32 PM CDT | Severe Thunderstorm Warning | MEG | DeSoto, Marshall, Tate | 43 min |
| Jun 11, 6:40 PM CDT | Severe Thunderstorm Warning | MEG | Lafayette, Marshall, Panola, Quitman, Tate, Tunica | 32 min |
| Jun 11, 6:46 PM CDT | Severe Thunderstorm Warning | MEG | Coahoma, Quitman, Tunica | 44 min |
| Jun 11, 6:51 PM CDT | Severe Thunderstorm Warning | MEG | Benton, Lafayette, Marshall, Pontotoc, Union | 39 min |
| Jun 11, 4:43 PM CDT | Special Weather Statement | MEG | Hardeman | 32 min |
| Jun 11, 4:47 PM CDT | Special Weather Statement | MEG | Shelby | 28 min |
| Jun 11, 5:04 PM CDT | Special Weather Statement | MEG | Fayette | 26 min |
| Jun 11, 5:44 PM CDT | Severe Thunderstorm Warning | MEG | Fayette, Hardeman, Haywood, Madison | 23 min |
| Jun 11, 5:47 PM CDT | Severe Thunderstorm Warning | MEG | Shelby, Tipton | 43 min |
| Jun 11, 6:05 PM CDT | Severe Thunderstorm Warning | MEG | Shelby, Tipton | 25 min |
| Jun 11, 6:22 PM CDT | Special Weather Statement | MEG | Shelby | 23 min |
| Jun 11, 6:28 PM CDT | Special Weather Statement | MEG | Tipton | 32 min |
| Jun 11, 2:58 PM CDT | Special Weather Statement | MEG | Mississippi | 32 min |
| Jun 11, 3:51 PM CDT | Special Weather Statement | MEG | Crittenden | 24 min |
| Jun 11, 4:17 PM CDT | Special Weather Statement | MEG | Crittenden | 28 min |
| Jun 11, 4:45 PM CDT | Special Weather Statement | MEG | Crittenden | 30 min |
| Jun 11, 4:59 PM CDT | Special Weather Statement | MEG | Cross | 31 min |
| Jun 11, 5:06 PM CDT | Severe Thunderstorm Warning | MEG | Crittenden, Cross, St. Francis | 39 min |
| Jun 11, 6:47 PM CDT | Special Weather Statement | MEG | Crittenden | 28 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2023Severe Thunderstorm Warnings in Mississippi, 2023Every severe thunderstorm warning in 2023
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.