Alert archive / Illinois / Tornado Watches in 2013
Tornado Watch 11
The Storm Prediction Center issued this tornado watch at Jan 29, 2013, 7:13 PM CST for 20 counties in Illinois; 6 counties in Kentucky; 14 counties in Missouri. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 29, 2013, 7:13 PM CST (01:13 UTC)
- Expired
- Jan 30, 2013, 1:00 AM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 70 kt
All 40 counties
Alexander County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Massac County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Ballard County, KY, Carlisle County, KY, Fulton County, KY, Graves County, KY, Hickman County, KY, McCracken County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Perry County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO
The radar
The Paducah radar (KPAH), 97 km from the middle of the area, began a volume at 01:15 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
- 30%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
27 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 29, 8:30 PM CST | Severe Thunderstorm Warning | PAH | Bollinger, Butler, Cape Girardeau, Ripley, Scott, Stoddard and 1 more | 30 min |
| Jan 29, 8:46 PM CST | Severe Thunderstorm Warning | PAH | Jackson, Jefferson, Perry | 29 min |
| Jan 29, 8:49 PM CST | Severe Thunderstorm Warning | PAH | Bollinger, Butler, Cape Girardeau, Ripley, Scott, Stoddard and 1 more | 26 min |
| Jan 29, 8:55 PM CST | Tornado Warning | PAH | Bollinger, Stoddard | 35 min |
| Jan 29, 8:59 PM CST | Severe Thunderstorm Warning | PAH | Alexander, Union | 46 min |
| Jan 29, 9:05 PM CST | Tornado Warning | PAH | Stoddard | 25 min |
| Jan 29, 9:08 PM CST | Tornado Warning | PAH | Jackson | 37 min |
| Jan 29, 9:13 PM CST | Severe Thunderstorm Warning | PAH | Franklin, Jackson, Jefferson, Perry, Union, Williamson | 32 min |
| Jan 29, 9:14 PM CST | Tornado Warning | PAH | Union | 31 min |
| Jan 29, 9:24 PM CST | Tornado Warning | PAH | Franklin, Jefferson, Perry | 36 min |
| Jan 29, 9:27 PM CST | Tornado Warning | PAH | Alexander, Pulaski | 33 min |
| Jan 29, 9:38 PM CST | Tornado Warning | PAH | Franklin, Jackson, Williamson | 37 min |
| Jan 29, 9:43 PM CST | Severe Thunderstorm Warning | PAH | Franklin, Hamilton, Jackson, Jefferson, Wayne, Williamson | 32 min |
| Jan 29, 9:43 PM CST | Tornado Warning | PAH | Johnson, Union | 47 min |
| Jan 29, 9:48 PM CST | Severe Thunderstorm Warning | PAH | Alexander, Johnson, Pulaski | 27 min |
| Jan 29, 10:02 PM CST | Severe Thunderstorm Warning | PAH | Edwards, Franklin, Hamilton, Jefferson, Saline, Wayne and 2 more | 28 min |
| Jan 29, 10:04 PM CST | Flash Flood Warning | LSX | Crawford, Iron, Madison, Reynolds, Sainte Genevieve, Saint Francois and 1 more | 12 hr |
| Jan 29, 10:07 PM CST | Tornado Warning | PAH | Saline, Williamson | 23 min |
| Jan 29, 10:14 PM CST | Severe Thunderstorm Warning | PAH | Alexander, Johnson, Massac, Pulaski | 31 min |
| Jan 29, 10:26 PM CST | Severe Thunderstorm Warning | PAH | Edwards, Gallatin, Hamilton, Saline, Wabash, Wayne and 2 more | 34 min |
| Jan 29, 10:29 PM CST | Severe Thunderstorm Warning | PAH | Johnson, Pope | 31 min |
| Jan 29, 10:43 PM CST | Severe Thunderstorm Warning | PAH | Massac, Pope | 47 min |
| Jan 29, 10:46 PM CST | Severe Thunderstorm Warning | PAH | Edwards, Gallatin, Saline, Wabash, White | 29 min |
| Jan 29, 10:57 PM CST | Severe Thunderstorm Warning | PAH | Hardin, Pope | 48 min |
| Jan 29, 11:02 PM CST | Tornado Warning | PAH | Wabash | 28 min |
| Jan 29, 11:05 PM CST | Tornado Warning | PAH | Massac | 25 min |
| Jan 29, 11:29 PM CST | Tornado Warning | PAH | Calloway, Graves | 31 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
Little Rock, AR (KLZK), launched 00:00Z, 1.2 hours before the alert went out and 270 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
- 784 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 571 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 508 m²/s²
- 0-3 km storm-relative helicity
- 586 m²/s²
- Significant tornado parameter
- 3.0
- Supercell composite
- 11.5
The text
As transmitted, in the capitals the NWS used until 2016.
570
WWUS20 KWNS 300112
SEL1
SPC WW 300112
ILZ000-KYZ000-MOZ000-300700-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 11
NWS STORM PREDICTION CENTER NORMAN OK
715 PM CST TUE JAN 29 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHERN ILLINOIS
WESTERN KENTUCKY
SOUTHEAST MISSOURI
EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 715 PM
UNTIL 100 AM CST.
TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES SOUTHEAST OF POPLAR
BLUFF MISSOURI TO 10 MILES NORTH OF MOUNT VERNON ILLINOIS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU1).
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 9...WW 10...
DISCUSSION...LINE OF THUNDERSTORMS OVER SOUTHERN MO IS EXPECTED TO
INTENSIFY DURING THE NEXT FEW HOURS AS THE LOW LEVEL JET BECOMES
VERY STRONG AND THE UPPER LEVEL TROUGH APPROACHES. DESPITE WEAK
INSTABILITY...90KT+ WINDS IN THE LOWEST 3KM COUPLED WITH EXTREME
SHEAR VALUES WILL PROMOTE A RISK OF DAMAGING WIND GUSTS IN STRONGER
CONVECTIVE ELEMENTS...ALONG WITH A RISK OF ISOLATED EMBEDDED
TORNADOES.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.
MEAN STORM MOTION VECTOR 22050.
...HARTSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 29, 6:08 PM CST | Mesoscale Discussion | SPC | Alexander, Bond, Champaign, Christian, Clark, Clay and 39 more | 2 hr |
| Jan 29, 9:19 PM CST | Mesoscale Discussion | SPC | Alexander, Clark, Clay, Crawford, Edwards, Franklin and 22 more | 86 min |
| Jan 29, 9:35 PM CST | Tornado Watch | SPC | Clark, Clay, Crawford, Jasper, Lawrence, Richland | 6 hr |
| Jan 29, 9:49 PM CST | Mesoscale Discussion | SPC | Calloway, Fulton | 116 min |
| Jan 30, 12:45 AM CST | Mesoscale Discussion | SPC | Boone, Bracken, Campbell, Carroll, Gallatin, Grant and 4 more | 60 min |
| Jan 30, 2:33 AM CST | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Boone and 76 more | 57 min |
| Jan 30, 3:35 AM CST | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Bath, Bourbon and 57 more | 4 hr |
| Jan 30, 4:51 AM CST | Tornado Watch | SPC | Bath, Bell, Boyd, Breathitt, Carter, Clay and 31 more | 7 hr |
| Jan 30, 6:38 AM CST | Mesoscale Discussion | SPC | Bell, Boyd, Breathitt, Carter, Clay, Elliott and 21 more | 97 min |
| Jan 29, 8:11 PM CST | Mesoscale Discussion | SPC | Dunklin | 94 min |
| Jan 29, 8:29 PM CST | Mesoscale Discussion | SPC | Atchison | 4 hr |
Nearby
Tornado Watches in Illinois, 2013Tornado Watches in Missouri, 2013Tornado Watches in Kentucky, 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.