Alert archive / Mississippi / Tornado Watches in 2017
Tornado Watch 3
The Storm Prediction Center issued this tornado watch at Jan 2, 2017, 11:22 AM CST for 4 states. It was in force for 9 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 2, 2017, 11:22 AM CST (17:22 UTC)
- Expired
- Jan 2, 2017, 8:00 PM CST
- In force
- 9 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 84 counties
Baldwin County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Marengo County, AL, Mobile County, AL, Monroe County, AL, Sumter County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, Ascension Parish, LA, Assumption Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Franklin Parish, LA, Iberville Parish, LA, Jefferson Parish, LA, Lafourche Parish, LA, Livingston Parish, LA, Madison Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Pointe Coupee Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Tensas Parish, LA, Terrebonne Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Adams County, MS, Amite County, MS, Claiborne County, MS, Clarke County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Hinds County, MS, Jackson County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Madison County, MS, Marion County, MS, Neshoba County, MS, Newton County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Stone County, MS, Walthall County, MS, Warren County, MS, Wayne County, MS, Wilkinson County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 101 km from the middle of the area, began a volume at 17:24 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
- 50%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
66 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 2, 11:36 AM CST | Severe Thunderstorm Warning | JAN | Catahoula, Concordia | 54 min |
| Jan 2, 11:56 AM CST | Severe Thunderstorm Warning | MOB | Clarke, Washington | 49 min |
| Jan 2, 11:57 AM CST | Severe Thunderstorm Warning | LIX | Pearl River | 33 min |
| Jan 2, 12:02 PM CST | Severe Thunderstorm Warning | MOB | Stone | 43 min |
| Jan 2, 12:04 PM CST | Severe Thunderstorm Warning | JAN | Adams, Jefferson | 41 min |
| Jan 2, 12:06 PM CST | Severe Thunderstorm Warning | JAN | Tensas | 54 min |
| Jan 2, 12:06 PM CST | Severe Thunderstorm Warning | JAN | Franklin, Richland | 54 min |
| Jan 2, 12:10 PM CST | Flash Flood Warning | MOB | Clarke, Conecuh, Monroe, Washington | 6 hr |
| Jan 2, 12:14 PM CST | Severe Thunderstorm Warning | LIX | Saint Tammany, Washington | 46 min |
| Jan 2, 12:15 PM CST | Severe Thunderstorm Warning | LIX | East Feliciana | 45 min |
| Jan 2, 12:19 PM CST | Tornado Warning | JAN | Concordia | 56 min |
| Jan 2, 12:27 PM CST | Severe Thunderstorm Warning | MOB | Clarke, Conecuh, Monroe | 48 min |
| Jan 2, 12:37 PM CST | Severe Thunderstorm Warning | JAN | Franklin, Jefferson | 38 min |
| Jan 2, 12:38 PM CST | Severe Thunderstorm Warning | JAN | Madison | 56 min |
| Jan 2, 12:41 PM CST | Severe Thunderstorm Warning | LIX | West Feliciana | 34 min |
| Jan 2, 12:46 PM CST | Severe Thunderstorm Warning | JAN | Claiborne, Jefferson, Warren | 44 min |
| Jan 2, 12:51 PM CST | Tornado Warning | MOB | Washington | 19 min |
| Jan 2, 12:58 PM CST | Severe Thunderstorm Warning | MOB | Clarke, Conecuh, Monroe, Wilcox | 47 min |
| Jan 2, 1:07 PM CST | Tornado Warning | JAN | Claiborne, Copiah, Jefferson | 38 min |
| Jan 2, 1:13 PM CST | Severe Thunderstorm Warning | JAN | Copiah, Lincoln | 49 min |
| Jan 2, 1:20 PM CST | Severe Thunderstorm Warning | LIX | Ascension, East Baton Rouge, East Feliciana, Iberville, Livingston, Saint Helena and 3 more | 55 min |
| Jan 2, 1:22 PM CST | Severe Thunderstorm Warning | JAN | Hinds, Warren | 53 min |
| Jan 2, 1:33 PM CST | Severe Thunderstorm Warning | JAN | Lawrence | 42 min |
| Jan 2, 1:33 PM CST | Tornado Warning | LIX | Walthall | 12 min |
| Jan 2, 1:34 PM CST | Severe Thunderstorm Warning | JAN | Forrest | 26 min |
| Jan 2, 1:44 PM CST | Severe Thunderstorm Warning | MOB | Butler, Conecuh, Monroe, Wilcox | 46 min |
| Jan 2, 1:45 PM CST | Severe Thunderstorm Warning | JAN | Hinds, Madison, Yazoo | 60 min |
| Jan 2, 1:46 PM CST | Severe Thunderstorm Warning | JAN | Rankin, Simpson | 59 min |
| Jan 2, 1:50 PM CST | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis | 55 min |
| Jan 2, 1:52 PM CST | Severe Thunderstorm Warning | LIX | Ascension, Livingston, Saint Helena, Saint John the Baptist, Saint Tammany, Tangipahoa and 1 more | 53 min |
| Jan 2, 1:52 PM CST | Flash Flood Warning | JAN | Forrest, Lamar | 4 hr |
| Jan 2, 2:02 PM CST | Flash Flood Warning | MOB | Washington | 6 hr |
| Jan 2, 2:03 PM CST | Tornado Warning | JAN | Simpson | 27 min |
| Jan 2, 2:20 PM CST | Severe Thunderstorm Warning | MOB | Baldwin, Butler, Clarke, Conecuh, Covington, Escambia and 1 more | 40 min |
| Jan 2, 2:20 PM CST | Tornado Warning | JAN | Covington, Simpson, Smith | 30 min |
| Jan 2, 2:25 PM CST | Severe Thunderstorm Warning | JAN | Marion | 22 min |
| Jan 2, 2:25 PM CST | Severe Thunderstorm Warning | JAN | Scott, Smith | 49 min |
| Jan 2, 2:29 PM CST | Severe Thunderstorm Warning | JAN | Covington, Jones | 46 min |
| Jan 2, 2:33 PM CST | Tornado Warning | MOB | Baldwin | 48 min |
| Jan 2, 2:35 PM CST | Severe Thunderstorm Warning | LIX | Orleans, Saint John the Baptist, Saint Tammany, Tangipahoa, Washington | 55 min |
| Jan 2, 2:37 PM CST | Tornado Warning | JAN | Jasper, Smith | 42 min |
| Jan 2, 2:39 PM CST | Severe Thunderstorm Warning | JAN | Forrest, Lamar | 51 min |
| Jan 2, 2:43 PM CST | Severe Thunderstorm Warning | JAN | Attala, Leake, Madison, Scott | 51 min |
| Jan 2, 2:47 PM CST | Severe Thunderstorm Warning | MOB | Butler, Conecuh, Monroe | 43 min |
| Jan 2, 2:47 PM CST | Severe Thunderstorm Warning | JAN | Jasper, Newton | 43 min |
| Jan 2, 2:50 PM CST | Tornado Warning | MOB | Crenshaw | 40 min |
| Jan 2, 2:55 PM CST | Flash Flood Warning | MOB | Butler, Conecuh, Covington, Crenshaw, Monroe, Wilcox | 6 hr |
| Jan 2, 2:55 PM CST | Severe Thunderstorm Warning | JAN | Jones | 35 min |
| Jan 2, 3:07 PM CST | Severe Thunderstorm Warning | MOB | Choctaw, Clarke, Washington | 53 min |
| Jan 2, 3:09 PM CST | Tornado Warning | JAN | Clarke | 43 min |
| Jan 2, 3:12 PM CST | Severe Thunderstorm Warning | JAN | Lauderdale | 51 min |
| Jan 2, 3:13 PM CST | Severe Thunderstorm Warning | MOB | Butler, Crenshaw | 19 min |
| Jan 2, 3:16 PM CST | Severe Thunderstorm Warning | JAN | Neshoba | 44 min |
| Jan 2, 3:17 PM CST | Severe Thunderstorm Warning | MOB | Escambia, Okaloosa, Santa Rosa | 58 min |
| Jan 2, 3:19 PM CST | Tornado Warning | JAN | Lauderdale | 32 min |
| Jan 2, 3:44 PM CST | Severe Thunderstorm Warning | MOB | Mobile | 46 min |
| Jan 2, 3:59 PM CST | Severe Thunderstorm Warning | MOB | Baldwin, Choctaw, Clarke, Mobile, Monroe, Washington and 1 more | 61 min |
| Jan 2, 4:06 PM CST | Severe Thunderstorm Warning | MOB | Butler, Crenshaw | 54 min |
| Jan 2, 4:15 PM CST | Severe Thunderstorm Warning | MOB | Escambia, Okaloosa, Santa Rosa | 45 min |
| Jan 2, 4:23 PM CST | Severe Thunderstorm Warning | MOB | Baldwin | 52 min |
| Jan 2, 4:29 PM CST | Severe Thunderstorm Warning | MOB | Mobile | 31 min |
| Jan 2, 4:48 PM CST | Flash Flood Warning | MOB | Baldwin, Mobile | 6 hr |
| Jan 2, 4:55 PM CST | Severe Thunderstorm Warning | MOB | Baldwin, Butler, Clarke, Conecuh, Escambia, Mobile and 1 more | 65 min |
| Jan 2, 5:42 PM CST | Severe Thunderstorm Warning | MOB | Baldwin, Conecuh, Covington, Escambia, Monroe | 63 min |
| Jan 2, 6:44 PM CST | Severe Thunderstorm Warning | MOB | Covington | 31 min |
| Jan 2, 8:00 PM CST | Severe Thunderstorm Warning | MOB | Baldwin | 45 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 5.4 hours before the alert went out and 128 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
- 1261 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 571 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 322 m²/s²
- 0-3 km storm-relative helicity
- 423 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.0
The text
As transmitted.
146 WWUS20 KWNS 021720 SEL3 SPC WW 021720 ALZ000-FLZ000-LAZ000-MSZ000-CWZ000-030200- URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 3 NWS Storm Prediction Center Norman OK 1120 AM CST Mon Jan 2 2017 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of West Central and Southwest Alabama Extreme Northwest Florida Southeast Louisiana Central and Southern Mississippi Coastal Waters * Effective this Monday morning and evening from 1120 AM until 800 PM CST. * Primary threats include... A few tornadoes possible Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible SUMMARY...A line of severe storms over western Louisiana will progress eastward across the Lower Mississippi Valley this afternoon, while additional strong/severe storms continue developing ahead of the squall line from southeast Louisiana into southwest Alabama. Damaging wind gusts and a few tornadoes will be possible into the evening hours. The tornado watch area is approximately along and 130 statute miles east and west of a line from 40 miles west northwest of Meridian MS to 50 miles south of Gulfport MS. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 2... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 24035. ...Weiss
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 2, 7:08 AM CST | Mesoscale Discussion | SPC | Bibb, Choctaw, Greene, Hale, Marengo, Perry and 3 more | 97 min |
| Jan 2, 10:17 AM CST | Mesoscale Discussion | SPC | Baldwin, Clarke, Mobile, Washington | 118 min |
| Jan 2, 12:59 PM CST | Mesoscale Discussion | SPC | Autauga, Barbour, Bullock, Butler, Chambers, Chilton and 17 more | 2 hr |
| Jan 2, 2:03 PM CST | Mesoscale Discussion | SPC | Baldwin, Butler, Choctaw, Clarke, Coffee, Conecuh and 10 more | 117 min |
| Jan 2, 3:46 PM CST | Tornado Watch | SPC | Barbour, Bullock, Coffee, Dale, Geneva, Henry and 3 more | 8 hr |
| Jan 2, 5:36 PM CST | Mesoscale Discussion | SPC | Barbour, Bullock, Butler, Coffee, Covington, Crenshaw and 10 more | 114 min |
| Jan 2, 2:06 AM CST | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Bienville, Calcasieu and 23 more | 114 min |
| Jan 2, 5:35 AM CST | Mesoscale Discussion | SPC | Acadia, Allen, Beauregard, Bienville, Bossier, Caddo and 18 more | 85 min |
| Jan 2, 6:12 AM CST | Tornado Watch | SPC | Acadia, Allen, Avoyelles, Beauregard, Bienville, Bossier and 27 more | 10 hr |
| Jan 2, 7:48 AM CST | Mesoscale Discussion | SPC | Acadia, Allen, Beauregard, Bienville, Bossier, Caddo and 19 more | 57 min |
| Jan 2, 11:09 AM CST | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Caldwell, Cameron, Evangeline and 12 more | 96 min |
Nearby
Tornado Watches in Mississippi, 2017Tornado Watches in Louisiana, 2017Tornado Watches in Alabama, 2017Every tornado 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.