Alert archive / Tennessee / Severe Thunderstorm Watches in 2017
Severe Thunderstorm Watch 179
The Storm Prediction Center issued this severe thunderstorm watch at Apr 30, 2017, 1:10 AM CDT for 4 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 30, 2017, 1:10 AM CDT (06:10 UTC)
- Expired
- Apr 30, 2017, 6:41 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 36 counties
Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Lee County, AR, Mississippi County, AR, Phillips County, AR, Poinsett County, AR, St. Francis County, AR, Butler County, MO, Dunklin County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Ripley County, MO, Scott County, MO, Stoddard County, MO, DeSoto County, MS, Tunica County, MS, Benton County, TN, Carroll County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Gibson County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN
The radar
The Memphis radar (KNQA), 53 km from the middle of the area, began a volume at 06:14 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 10%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 1:15 AM CDT | Severe Thunderstorm Warning | MEG | Craighead, Crittenden, Cross, Lee, Mississippi, Poinsett and 1 more | 45 min |
| Apr 30, 1:17 AM CDT | Tornado Warning | MEG | Clay, Greene | 43 min |
| Apr 30, 1:36 AM CDT | Severe Thunderstorm Warning | MEG | Craighead, Greene, Mississippi | 39 min |
| Apr 30, 1:54 AM CDT | Severe Thunderstorm Warning | MEG | Craighead, Crittenden, Cross, Mississippi, Poinsett, St. Francis | 51 min |
| Apr 30, 1:56 AM CDT | Severe Thunderstorm Warning | MEG | Clay, Greene | 49 min |
| Apr 30, 2:00 AM CDT | Tornado Warning | MEG | Craighead, Mississippi | 45 min |
| Apr 30, 2:16 AM CDT | Severe Thunderstorm Warning | MEG | Mississippi | 44 min |
| Apr 30, 2:24 AM CDT | Flash Flood Warning | MEG | Clay, Craighead, Greene, Lawrence, Poinsett, Randolph | 12 hr |
| Apr 30, 2:27 AM CDT | Tornado Warning | MEG | Mississippi | 48 min |
| Apr 30, 2:32 AM CDT | Flash Flood Warning | MEG | Clay, Craighead, Greene, Mississippi | 11 hr |
| Apr 30, 2:33 AM CDT | Severe Thunderstorm Warning | MEG | Pemiscot | 42 min |
| Apr 30, 2:41 AM CDT | Severe Thunderstorm Warning | PAH | Mississippi, New Madrid | 34 min |
| Apr 30, 3:08 AM CDT | Severe Thunderstorm Warning | MEG | Dyer, Gibson, Obion, Weakley | 52 min |
| Apr 30, 3:21 AM CDT | Severe Thunderstorm Warning | PAH | Cape Girardeau, Perry, Scott | 24 min |
| Apr 30, 3:25 AM CDT | Severe Thunderstorm Warning | MEG | Cross, Lee, St. Francis | 50 min |
| Apr 30, 3:34 AM CDT | Flash Flood Warning | MEG | Craighead, Crittenden, Cross, Mississippi, Poinsett, St. Francis | 9 hr |
| Apr 30, 3:44 AM CDT | Severe Thunderstorm Warning | MEG | Henry, Weakley | 46 min |
| Apr 30, 4:01 AM CDT | Severe Thunderstorm Warning | MEG | Crittenden, Cross, St. Francis | 44 min |
| Apr 30, 4:14 AM CDT | Severe Thunderstorm Warning | MEG | Crittenden, Cross, Poinsett | 31 min |
| Apr 30, 4:40 AM CDT | Severe Thunderstorm Warning | MEG | Crittenden, Cross, Mississippi, Poinsett | 32 min |
| Apr 30, 4:58 AM CDT | Severe Thunderstorm Warning | MEG | Craighead, Mississippi, Poinsett | 14 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 9:38 PM CDT | Mesoscale Discussion | SPC | Clark, Columbia, Hempstead, Hot Spring, Howard, Lafayette and 5 more | 67 min |
| Apr 29, 10:23 PM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Bradley, Calhoun, Clark, Cleburne, Cleveland and 36 more | 8 hr |
| Apr 29, 11:37 PM CDT | Mesoscale Discussion | SPC | Bradley, Calhoun, Clark, Cleveland, Columbia, Conway and 23 more | 53 min |
| Apr 30, 12:54 AM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clay and 26 more | 96 min |
| Apr 30, 1:49 AM CDT | Tornado Watch | SPC | Ashley, Chicot | 7 hr |
| Apr 30, 2:58 AM CDT | Mesoscale Discussion | SPC | Crittenden, Cross, Lee, Mississippi, Phillips, Poinsett and 1 more | 92 min |
| Apr 30, 3:36 AM CDT | Mesoscale Discussion | SPC | Arkansas, Bradley, Calhoun, Cleveland, Desha, Drew and 10 more | 84 min |
| Apr 30, 5:41 AM CDT | Mesoscale Discussion | SPC | Arkansas, Bradley, Clay, Cleveland, Craighead, Crittenden and 19 more | 64 min |
| Apr 30, 6:12 AM CDT | Mesoscale Discussion | SPC | Ashley, Chicot | 93 min |
| Apr 30, 1:14 AM CDT | Mesoscale Discussion | SPC | Adams, Claiborne, Jefferson, Wilkinson | 91 min |
| Apr 30, 6:59 AM CDT | Mesoscale Discussion | SPC | Amite, Attala, Calhoun, Carroll, Chickasaw, Choctaw and 50 more | 2 hr |
| Apr 30, 7:32 AM CDT | Tornado Watch | SPC | Amite, Attala, Carroll, Choctaw, Clarke, Clay and 42 more | 7 hr |
| Apr 30, 10:06 AM CDT | Mesoscale Discussion | SPC | Chickasaw, Itawamba, Lee, Monroe, Pontotoc, Prentiss and 2 more | 84 min |
| Apr 30, 10:36 AM CDT | Tornado Watch | SPC | Alcorn, Benton, Calhoun, Chickasaw, Itawamba, Lafayette and 9 more | 8 hr |
| Apr 30, 1:21 PM CDT | Mesoscale Discussion | SPC | Bedford, Cannon, Cheatham, Coffee, Davidson, DeKalb and 21 more | 54 min |
| Apr 30, 1:36 PM CDT | Tornado Watch | SPC | Bedford, Bledsoe, Bradley, Cannon, Cheatham, Clay and 32 more | 5 hr |
| Apr 30, 3:42 PM CDT | Mesoscale Discussion | SPC | Bledsoe, Bradley, Cannon, Coffee, Cumberland, DeKalb and 15 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Tennessee, 2017Severe Thunderstorm Watches in Arkansas, 2017Severe Thunderstorm Watches in Missouri, 2017Every severe thunderstorm watch in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.