Alert archive / Mississippi / Flash Flood Watches in 2019
Flash Flood Watch 3, NWS Memphis, TN
NWS Memphis, TN issued this flash flood watch at Feb 20, 2019, 3:34 PM CST for 22 counties in Mississippi; 21 counties in Tennessee; 6 counties in Arkansas. It took effect at Feb 21, 2019, 12:00 PM CST. It was in force for 58 hr.
The area
The counties it named.
The facts
- Issued
- Feb 20, 2019, 3:34 PM CST (21:34 UTC)
- In effect from
- Feb 21, 2019, 12:00 PM CST
- Expired
- Feb 23, 2019, 9:35 PM CST
- In force
- 58 hr
- Issued by
- NWS Memphis, TN
- Flood severity
- None
All 49 counties
Crittenden County, AR, Cross County, AR, Lee County, AR, Mississippi County, AR, Phillips 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), 60 km from the middle of the area, began a volume at 21:35 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 (KBYH), launched 12:00Z, 9.6 hours before the alert went out and 64 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
- 528 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- -117 m²/s²
- 0-3 km storm-relative helicity
- -6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch 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 flash flood watch went out at Feb 20, 11:24 AM CST, 4 hours 10 minutes earlier.
Area forecast discussion, Feb 20, 11:24 AM CST, 4 hours 10 minutes before
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</html>Hazardous weather outlook, Feb 20, 4:24 AM CST, 11 hours 10 minutes before
Hazardous Weather Outlook National Weather Service Memphis TN 424 AM CST Wed Feb 20 2019 ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017- 020>024-TNZ001>004-019>022-048>055-088>092-211230- 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- 424 AM CST Wed Feb 20 2019 This hazardous weather outlook is for portions of East Arkansas... the Missouri Bootheel...North Mississippi...and West Tennessee. .DAY ONE...Today and Tonight A Flash Flood Watch remains in effect through late tonight for areas of the Mid-South east of the Mississippi River. Heavy rainfall is expected this morning and afternoon. Up to 1.50 inches of rain could fall, in addition to recent heavy rainfall. This may lead to flooding, rises in area rivers, and an increased potential for river flooding. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Additional heavy rainfall will be possible on Friday and Saturday. Another flood or flash flood watch may be needed. Severe thunderstorms are also possible Saturday into Saturday night. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed Saturday into Saturday night in support of severe weather operations. ZDM
In the hours before
Local storm report, Feb 20, 9:36 AM CST, 5 hours 58 minutes before
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</html>Local storm report, Feb 20, 10:23 AM CST, 5 hours 11 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 19, 10:57 PM CST | Special Weather Statement | MEG | Coahoma, Tate | 48 min |
| Feb 20, 2:40 AM CST | Areal Flood Advisory | MEG | Lafayette, Marshall, Panola, Tallahatchie, Yalobusha | 2 hr |
| Feb 20, 3:37 AM CST | Areal Flood Advisory | MEG | Benton, Lafayette, Marshall, Pontotoc, Tippah, Union | 113 min |
| Feb 20, 4:01 AM CST | Areal Flood Advisory | MEG | Alcorn, Prentiss, Tippah | 119 min |
| Feb 20, 4:06 AM CST | Flash Flood Watch | MEG | Alcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 16 more | 9 hr |
| Feb 20, 4:38 AM CST | Areal Flood Advisory | MEG | Calhoun, Chickasaw, Lafayette, Lee, Pontotoc, Prentiss and 1 more | 112 min |
| Feb 20, 4:42 AM CST | Areal Flood Advisory | MEG | Alcorn, Prentiss, Tishomingo | 2 hr |
| Feb 20, 7:27 AM CST | Areal Flood Advisory | MEG | Calhoun, Chickasaw, Lafayette, Lee, Pontotoc, Union | 2 hr |
| Feb 20, 7:31 AM CST | Areal Flood Advisory | MEG | Alcorn, Itawamba, Lee, Prentiss, Tishomingo | 119 min |
| Feb 20, 8:51 AM CST | Flash Flood Warning | MEG | Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc | 3 hr |
| Feb 20, 9:36 AM CST | Areal Flood Advisory | MEG | Alcorn, Itawamba, Lee, Prentiss, Tippah, Tishomingo and 1 more | 114 min |
| Feb 20, 9:42 AM CST | Areal Flood Warning | MEG | Calhoun, Lafayette, Panola, Pontotoc, Yalobusha | 3 hr |
| Feb 20, 10:30 AM CST | River Flood Warning | MEG | Tate, Tunica | 10 hr |
| Feb 20, 10:46 AM CST | River Flood Warning | MEG | Calhoun | 17 hr |
| Feb 20, 11:40 AM CST | Areal Flood Warning | MEG | Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc and 3 more | 6 hr |
| Feb 20, 1:06 PM CST | River Flood Warning | MEG | Calhoun | 17 hr |
| Feb 20, 4:07 AM CST | Areal Flood Advisory | MEG | Benton, Carroll, Chester, Decatur, Hardin, Henderson | 113 min |
Nearby
Flash Flood Watches in Mississippi, 2019Flash Flood Watches in Tennessee, 2019Flash Flood Watches in Arkansas, 2019Every flash flood watch in 2019
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.