Alert archive / Mississippi / Tornado Watches in 2013
Tornado Watch 16
The Storm Prediction Center issued this tornado watch at Jan 30, 2013, 3:45 AM CST for 29 counties in Mississippi. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 30, 2013, 3:45 AM CST (09:45 UTC)
- Expired
- Jan 30, 2013, 8:00 AM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 29 counties
Attala County, MS, Choctaw County, MS, Clarke County, MS, Clay County, MS, Copiah County, MS, Covington County, MS, Franklin County, MS, Hinds County, MS, Jasper County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Lowndes County, MS, Madison County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Webster County, MS, Winston County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 105 km from the middle of the area, began a volume at 09:48 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
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 30, 3:57 AM CST | Severe Thunderstorm Warning | JAN | Scott | 48 min |
| Jan 30, 3:58 AM CST | Severe Thunderstorm Warning | JAN | Neshoba | 77 min |
| Jan 30, 4:26 AM CST | Severe Thunderstorm Warning | JAN | Lowndes, Noxubee | 79 min |
| Jan 30, 4:44 AM CST | Severe Thunderstorm Warning | JAN | Newton | 76 min |
| Jan 30, 4:49 AM CST | Severe Thunderstorm Warning | JAN | Jefferson Davis, Lawrence, Simpson | 41 min |
| Jan 30, 5:24 AM CST | Severe Thunderstorm Warning | JAN | Covington, Simpson, Smith | 51 min |
| Jan 30, 5:43 AM CST | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis, Lamar, Marion | 47 min |
| Jan 30, 6:17 AM CST | Severe Thunderstorm Warning | JAN | Forrest, Jones | 58 min |
| Jan 30, 6:39 AM CST | Severe Thunderstorm Warning | JAN | Clarke | 51 min |
| Jan 30, 6:48 AM CST | Severe Thunderstorm Warning | JAN | Lauderdale | 57 min |
| Jan 30, 6:58 AM CST | Tornado Warning | JAN | Clarke, Lauderdale | 47 min |
| Jan 30, 7:12 AM CST | Severe Thunderstorm Warning | JAN | Forrest, Jones, Lamar | 48 min |
| Jan 30, 7:25 AM CST | Severe Thunderstorm Warning | JAN | Clarke | 50 min |
| Jan 30, 7:50 AM CST | Flash Flood Warning | JAN | Forrest, Jones, Lamar | 3 hr |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 9.8 hours before the alert went out and 110 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
- 63 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 1274 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 213 m²/s²
- 0-3 km storm-relative helicity
- 375 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
560
WWUS20 KWNS 300947
SEL6
SPC WW 300947
MSZ000-301400-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 16
NWS STORM PREDICTION CENTER NORMAN OK
345 AM CST WED JAN 30 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
PORTIONS OF CENTRAL AND SOUTHERN MISSISSIPPI
EFFECTIVE THIS WEDNESDAY MORNING FROM 345 AM UNTIL 800 AM CST.
TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES EAST AND WEST OF A LINE FROM 10 MILES EAST OF COLUMBUS
MISSISSIPPI TO 55 MILES SOUTH SOUTHEAST OF JACKSON MISSISSIPPI.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU6).
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 12...WW 13...WW 14...WW
15...
DISCUSSION...DESPITE WEAK INSTABILITY...STRONG DEEP LAYER AND LOW
LEVEL SHEAR WILL CONTINUE TO PROMOTE AN ENVIRONMENT CONDUCIVE FOR
STRONG TO SEVERE STORMS...WITH LINE/BOWING SEGMENTS THE PRIMARY
STORM MODE AS ACTIVITY ADVANCES EWD ACROSS CENTRAL AND SRN MS.
DAMAGING WINDS WILL BE THE PRIMARY THREAT. HOWEVER...GIVEN THE
STRENGTH OF THE LOW LEVEL SHEAR PER WSR-88D VWP DATA IN CENTRAL MS
WITH SFC-1 KM SHEAR AROUND 40 KT AND 0-1 KM SRH NEAR 250
M2/S2...TORNADOES REMAIN A LIKELIHOOD.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.
MEAN STORM MOTION VECTOR 24050.
...PETERS/MEADSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 29, 9:49 PM CST | Mesoscale Discussion | SPC | Colbert, Franklin, Lauderdale | 116 min |
| Jan 30, 1:31 AM CST | Mesoscale Discussion | SPC | Blount, Calhoun, Cherokee, Colbert, Cullman, DeKalb and 17 more | 29 min |
| Jan 30, 1:46 AM CST | Tornado Watch | SPC | Blount, Colbert, Cullman, DeKalb, Fayette, Franklin and 16 more | 8 hr |
| Jan 30, 4:27 AM CST | Mesoscale Discussion | SPC | Mobile, Washington | 93 min |
| Jan 30, 5:01 AM CST | Mesoscale Discussion | SPC | Autauga, Bibb, Bullock, Butler, Calhoun, Chambers and 26 more | 29 min |
| Jan 30, 5:15 AM CST | Tornado Watch | SPC | Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 34 more | 7 hr |
| Jan 30, 7:43 AM CST | Mesoscale Discussion | SPC | Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 36 more | 62 min |
| Jan 30, 10:09 AM CST | Mesoscale Discussion | SPC | Barbour, Bullock, Chambers, Clay, Cleburne, Crenshaw and 9 more | 96 min |
| Jan 30, 11:50 AM CST | Mesoscale Discussion | SPC | Bullock, Chambers, Elmore, Lee, Macon, Montgomery and 3 more | 85 min |
| Jan 30, 12:19 PM CST | Tornado Watch | SPC | Barbour, Bullock, Butler, Chambers, Coffee, Conecuh and 16 more | 9 hr |
| Jan 29, 7:31 PM CST | Mesoscale Discussion | SPC | Alcorn, Attala, Benton, Calhoun, Carroll, DeSoto and 26 more | 119 min |
| Jan 29, 8:11 PM CST | Mesoscale Discussion | SPC | Bolivar, Coahoma, Issaquena, Sharkey, Sunflower, Tunica and 1 more | 94 min |
| Jan 29, 10:07 PM CST | Tornado Watch | SPC | Adams, Alcorn, Attala, Benton, Calhoun, Carroll and 37 more | 6 hr |
| Jan 30, 3:03 AM CST | Mesoscale Discussion | SPC | Adams, Alcorn, Attala, Benton, Calhoun, Carroll and 41 more | 57 min |
Nearby
Tornado Watches in Mississippi, 2013Every tornado watch in 2013
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.