Alert archive / Arkansas / Tornado Watches in 2006
Tornado Watch 850
The Storm Prediction Center issued this tornado watch at Nov 14, 2006, 9:20 PM CST for 4 states. It was in force for 9 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 14, 2006, 9:20 PM CST (03:20 UTC)
- Expired
- Nov 15, 2006, 6:05 AM CST
- In force
- 9 hr
- Issued by
- the Storm Prediction Center
- Particularly dangerous situation
- Yes
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 58 counties
Arkansas County, AR, Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Jefferson County, AR, Lafayette County, AR, Lincoln County, AR, Little River County, AR, Miller County, AR, Montgomery County, AR, Nevada County, AR, Ouachita County, AR, Pike County, AR, Polk County, AR, Sevier County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Caldwell Parish, LA, Catahoula Parish, LA, Claiborne Parish, LA, Concordia Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Ouachita Parish, LA, Richland Parish, LA, Tensas Parish, LA, Union Parish, LA, Webster Parish, LA, West Carroll Parish, LA, Winn Parish, LA, McCurtain County, OK, Bowie County, TX, Camp County, TX, Cass County, TX, Marion County, TX, Morris County, TX, Red River County, TX, Titus County, TX
The radar
The Shreveport radar (KSHV), 133 km from the middle of the area, began a volume at 03:21 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
- 70%
- One or more EF2 to EF5 tornadoes
- 70%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 60%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
19 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 14, 11:03 PM CST | Severe Thunderstorm Warning | LZK | Polk | 57 min |
| Nov 14, 11:19 PM CST | Tornado Warning | LZK | Polk | 41 min |
| Nov 14, 11:43 PM CST | Severe Thunderstorm Warning | LZK | Montgomery | 32 min |
| Nov 14, 11:53 PM CST | Tornado Warning | LZK | Montgomery | 52 min |
| Nov 15, 12:43 AM CST | Severe Thunderstorm Warning | LZK | Garland | 62 min |
| Nov 15, 1:55 AM CST | Severe Thunderstorm Warning | LZK | Garland, Saline | 65 min |
| Nov 15, 2:01 AM CST | Flash Flood Warning | LZK | Garland, Montgomery, Pulaski, Saline | 3 hr |
| Nov 15, 3:47 AM CST | Severe Thunderstorm Warning | LZK | Montgomery | 13 min |
| Nov 15, 3:51 AM CST | Severe Thunderstorm Warning | SHV | Bienville | 39 min |
| Nov 15, 4:45 AM CST | Severe Thunderstorm Warning | JAN | Ashley | 45 min |
| Nov 15, 4:51 AM CST | Severe Thunderstorm Warning | JAN | Ashley | 54 min |
| Nov 15, 4:58 AM CST | Severe Thunderstorm Warning | JAN | Morehouse, West Carroll | 47 min |
| Nov 15, 5:05 AM CST | Severe Thunderstorm Warning | LZK | Drew | 40 min |
| Nov 15, 5:26 AM CST | Tornado Warning | LZK | Drew | 19 min |
| Nov 15, 5:41 AM CST | Severe Thunderstorm Warning | JAN | Chicot | 49 min |
| Nov 15, 5:46 AM CST | Severe Thunderstorm Warning | JAN | East Carroll | 44 min |
| Nov 15, 5:50 AM CST | Severe Thunderstorm Warning | JAN | Franklin, Richland | 40 min |
| Nov 15, 6:01 AM CST | Tornado Warning | JAN | Chicot | 44 min |
| Nov 15, 6:04 AM CST | Severe Thunderstorm Warning | JAN | Catahoula | 41 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
Shreveport, LA (KSHV), launched 00:00Z, 3.3 hours before the alert went out and 127 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
- 1091 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 942 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 161 m²/s²
- 0-3 km storm-relative helicity
- 270 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 6.8
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 14, 6:46 PM CST | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 39 more | 119 min |
| Nov 14, 9:15 PM CST | Mesoscale Discussion | SPC | Arkansas, Cleburne, Craighead, Crittenden, Cross, Faulkner and 13 more | 2 hr |
| Nov 14, 11:01 PM CST | Severe Thunderstorm Watch | SPC | Cleburne, Conway, Faulkner, Independence, Jackson, Johnson and 16 more | 7 hr |
| Nov 14, 11:32 PM CST | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 47 more | 58 min |
| Nov 15, 2:16 AM CST | Mesoscale Discussion | SPC | Ashley, Bradley, Calhoun, Chicot, Clark, Cleveland and 15 more | 119 min |
| Nov 15, 2:29 AM CST | Mesoscale Discussion | SPC | Cleburne, Conway, Crawford, Crittenden, Cross, Faulkner and 25 more | 2 hr |
| Nov 15, 4:30 AM CST | Tornado Watch | SPC | Crittenden, Cross, Lee, Phillips, St. Francis | 5 hr |
| Nov 15, 5:31 AM CST | Tornado Watch | SPC | Ashley, Chicot | 4 hr |
| Nov 14, 10:07 PM CST | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Evangeline and 7 more | 83 min |
| Nov 14, 11:25 PM CST | Tornado Watch | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 22 more | 6 hr |
| Nov 15, 1:30 AM CST | Mesoscale Discussion | SPC | Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles and 2 more | 2 hr |
| Nov 15, 1:59 AM CST | Tornado Watch | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 16 more | 8 hr |
| Nov 15, 3:25 AM CST | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron and 14 more | 2 hr |
| Nov 15, 5:55 AM CST | Mesoscale Discussion | SPC | Ascension, Assumption, Jefferson, Lafourche, Livingston, Orleans and 10 more | 95 min |
| Nov 15, 7:14 AM CST | Mesoscale Discussion | SPC | Acadia, Ascension, Avoyelles, Concordia, East Baton Rouge, East Feliciana and 14 more | 2 hr |
| Nov 15, 9:30 AM CST | Mesoscale Discussion | SPC | Orleans, Saint Bernard, Saint Tammany, Tangipahoa, Washington | 60 min |
| Nov 15, 9:54 AM CST | Tornado Watch | SPC | Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles and 1 more | 11 hr |
Nearby
Tornado Watches in Arkansas, 2006Tornado Watches in Louisiana, 2006Tornado Watches in Texas, 2006Every tornado watch in 2006
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.