Alert archive / Arkansas / Tornado Watches in 2019
Tornado Watch 694
The Storm Prediction Center issued this tornado watch at Nov 26, 2019, 4:41 PM CST for 35 counties in Arkansas; 7 counties in Missouri. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 26, 2019, 4:41 PM CST (22:41 UTC)
- Expired
- Nov 26, 2019, 10:00 PM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 0.5 in
- Strongest gust expected
- 55 kt
All 42 counties
Arkansas County, AR, Baxter County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Cross County, AR, Faulkner County, AR, Fulton County, AR, Grant County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Lawrence County, AR, Lee County, AR, Lonoke County, AR, Monroe County, AR, Perry County, AR, Phillips County, AR, Poinsett County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Searcy County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Butler County, MO, Carter County, MO, Howell County, MO, Oregon County, MO, Ripley County, MO, Shannon County, MO, Wayne County, MO
The radar
The Little Rock radar (KLZK), 67 km from the middle of the area, began a volume at 22:41 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
- 10%
- 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
- 40%
Warnings issued inside it
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 26, 7:14 PM CST | Tornado Warning | LZK | Arkansas, Jefferson, Lincoln | 14 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 12:00Z, 10.7 hours before the alert went out and 168 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 689 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 263 m²/s²
- 0-3 km storm-relative helicity
- 256 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
974 WWUS20 KWNS 262239 SEL4 SPC WW 262239 ARZ000-MOZ000-270400- URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 694 NWS Storm Prediction Center Norman OK 440 PM CST Tue Nov 26 2019 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Northern and central Arkansas Southeast Missouri * Effective this Tuesday afternoon and evening from 440 PM until 1000 PM CST. * Primary threats include... A couple tornadoes possible Isolated damaging wind gusts to 65 mph possible SUMMARY...A few supercells may persist this evening amid strong shear but weak instability, yielding a risk for a couple brief tornadoes. The tornado watch area is approximately along and 60 statute miles east and west of a line from 10 miles east southeast of Pine Bluff AR to 40 miles west northwest of Poplar Bluff MO. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU4). 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 693... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 0.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A few cumulonimbi with maximum tops to 350. Mean storm motion vector 24040. ...Grams
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 26, 3:04 PM CST | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 26 more | 116 min |
| Nov 26, 3:42 PM CST | Tornado Watch | SPC | Ashley, Bradley, Calhoun, Chicot, Cleveland, Desha and 3 more | 6 hr |
| Nov 26, 4:27 PM CST | Mesoscale Discussion | SPC | Arkansas, Baxter, Clay, Cleburne, Conway, Craighead and 25 more | 63 min |
Nearby
Tornado Watches in Arkansas, 2019Tornado Watches in Missouri, 2019Every tornado watch in 2019
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.