Alert archive / Mississippi / Flash Flood Watches in 2020
Flash Flood Watch 2, NWS Memphis, TN
NWS Memphis, TN issued this flash flood watch at Jan 14, 2020, 3:40 AM CST for 8 counties in Mississippi. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Jan 14, 2020, 3:40 AM CST (09:40 UTC)
- Expired
- Jan 14, 2020, 11:13 AM CST
- In force
- 8 hr
- Issued by
- NWS Memphis, TN
- Flood severity
- None
Counties Calhoun County, MS, Chickasaw County, MS, Itawamba County, MS, Lee County, MS, Monroe County, MS, Pontotoc County, MS, Tallahatchie County, MS, Yalobusha County, MS
The radar
The Columbus AFB radar (KGWX), 73 km from the middle of the area, began a volume at 09:41 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
Jackson, MS (KJAN), launched 00:00Z, 9.7 hours before the alert went out and 215 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
- 792 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 299 m²/s²
- 0-3 km storm-relative helicity
- 316 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 13, 6:18 PM CST | Special Weather Statement | MEG | Alcorn | 42 min |
| Jan 14, 2:46 AM CST | Areal Flood Advisory | MEG | Alcorn, Benton, Prentiss, Tippah, Union | 3 hr |
| Jan 14, 3:46 AM CST | Areal Flood Advisory | MEG | Itawamba, Lee, Pontotoc, Prentiss, Tishomingo, Union | 3 hr |
| Jan 14, 4:26 AM CST | Areal Flood Advisory | MEG | Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc | 4 hr |
| Jan 14, 6:35 AM CST | Areal Flood Advisory | MEG | Calhoun, Chickasaw, Itawamba, Monroe | 3 hr |
| Jan 14, 6:39 AM CST | Areal Flood Advisory | MEG | Yalobusha | 2 hr |
| Jan 14, 10:22 AM CST | River Flood Warning | MEG | Calhoun | 9 hr |
| Jan 14, 3:38 PM CST | River Flood Warning | MEG | DeSoto | 9 days |
| Jan 13, 6:55 PM CST | Special Weather Statement | MEG | Hardin | 20 min |
| Jan 14, 12:17 AM CST | Special Weather Statement | MEG | Decatur | 28 min |
| Jan 14, 12:45 AM CST | Special Weather Statement | MEG | McNairy | 30 min |
| Jan 14, 8:56 AM CST | Dense Fog Advisory | MEG | Crockett, Dyer, Gibson, Haywood, Lake, Lauderdale and 3 more | 2 hr |
Nearby
Flash Flood Watches in Mississippi, 2020Every flash flood watch in 2020
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.