Alert archive / Arkansas / Special Weather Statements in 2021
Special Weather Statement, NWS Little Rock, AR
NWS Little Rock, AR issued this special weather statement at Oct 13, 2021, 5:56 PM CDT for Logan County, Arkansas. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 13, 2021, 5:56 PM CDT (22:56 UTC)
- Expired
- Oct 13, 2021, 6:30 PM CDT
- In force
- 34 min
- Issued by
- NWS Little Rock, AR
- Hail
- 0.00 in
- Wind
- 50
County Logan County, AR
The radar
The Western Arkansas radar (KSRX), 39 km from the middle of the area, began a volume at 23:01 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 10.9 hours before the alert went out and 187 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
- 722 J/kg
- Mixed-layer CIN
- -164 J/kg
- Mixed-layer LCL
- 646 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 440 m²/s²
- 0-3 km storm-relative helicity
- 590 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Little Rock, AR wrote its last area forecast discussion before this special weather statement went out at Oct 13, 5:34 PM CDT, 22 minutes earlier.
Area forecast discussion, Oct 13, 5:34 PM CDT, 22 minutes before
Area Forecast Discussion...UPDATED National Weather Service Little Rock AR 534 PM CDT Wed Oct 13 2021 .DISCUSSION... Updated to include the 00Z aviation discussion below... && .AVIATION... Convection in ERN OK and NWRN AR will move slowly NE this evening...likely impacting the NWRN terminals this evening and overnight...with some potential impacts at HOT/ADF later tonight. Coverage should decrease late tonight into Thu morning...but will still see some convective potential through the rest of the period. Near sunrise...some low CIGs/DZ will be possible at some terminals as well. Chances for isolated/scattered convection shift further east to potentially impact most of the terminals. However...have only mentioned VCSH/TS at this time as location and coverage is somewhat uncertain Thu afternoon at this time. && .PREV DISCUSSION...(ISSUED 234 PM CDT Wed Oct 13 2021) SHORT TERM...Tonight Through Friday A quasi-stationary frontal boundary over eastern OK, combined with a series of shortwaves rotating around a broad trof across the western two-thirds of the country...will make for a band of heavy rainfall across the western portions of the region tonight into tomorrow. Granted, most of the heavy rainfall will likely be just west of the forecast area, but some areas of heavy rain could extend a bit further east. With that in mind, I am issuing a flash flood watch for the western tier of counties adjacent to TSA. Aside from that, wet weather is going to remain in the forecast thru the remainder of the short term period, as the aforementioned trof slowly amplifies and makes its way to the east. LONG TERM...Friday Night Through Wednesday Night Long term PD looks to begin in the wake of a strong fall synoptic frnt. Aloft, a potent shortwave trof wl be moving quickly across the Upper Midwest, w/ an associated sfc mass response located over the Great Lakes. Sat morning, a strong cold frnt is expected to be clear of the state to the S/E and heading for the Gulf coastline. In the wake of the frnt, strong sfc high pressure wl settle over the Mid-South and dominate the wx pattern through much of the long term. Have excluded Chc PoPs from the majority of the long term, w/ dry wx expected to prevail. W/ the arrival of the fall airmass, temps wl return a near normal diurnal trend, w/ highs topping out in the low to mid 70s and lows dipping into the low to mid 40s early in the PD. Sun looks to be coldest morning during the PD, however current fcst guidance remains over 10F above any records. Tues through the end of the PD, sfc high pressure shifts E/wrd into the Appalachians, and Srly flow resumes over the region, however moisture return is not progged to be substantial. W/ the wind shift and introduction of modest WAA, daily diurnal peaks and valleys wl moderate towards a warming trend, w/ highs and lows settling in the 80s and 50s at most locations. && .LZK Watches/Warnings/Advisories... Flash Flood Watch through Thursday afternoon FOR Boone-Johnson- Logan-Newton-Polk-Scott. && Aviation...62
Hazardous weather outlook, Oct 13, 5:44 PM CDT, 12 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Little Rock AR 544 PM CDT Wed Oct 13 2021 ARZ003>008-012>017-021>025-030>034-037>047-052>057-062>069-141000- Boone-Marion-Baxter-Fulton-Sharp-Randolph-Newton-Searcy-Stone- Izard-Independence-Lawrence-Johnson-Pope-Van Buren-Cleburne- Jackson-Logan-Conway-Faulkner-White-Woodruff-Scott-Yell-Perry- Polk-Montgomery-Garland-Saline-Pulaski-Lonoke-Prairie-Monroe-Pike- Clark-Hot Spring-Grant-Jefferson-Arkansas-Dallas-Cleveland- Lincoln-Desha-Ouachita-Calhoun-Bradley-Drew- 544 PM CDT Wed Oct 13 2021 This Hazardous Weather Outlook is for a Large Part of Arkansas. .DAY ONE...Tonight Showers and thunderstorms will remain possible through much of the evening and overnight. While the overall threat for severe weather will remain low...an isolated strong storm will be possible over western into northwest portions of the area. Some locally heavy rainfall will also be possible...which may lead to an increased flash flood threat across this same area. .DAYS TWO THROUGH SEVEN...Thursday Through Tuesday Shower and thunderstorm chances will remain in the forecast through Friday as an active pattern prevails. While the potential exists for a few strong to severe storms...organized severe weather is not expected at this time. Some heavy rainfall will be a concern over west and northwest portions of the state...which may lead to an increased flash flood threat through at least Thursday afternoon. .Spotter Information Statement... Spotter activation will not be needed. && Visit NWS Little Rock on the web. Go to http://weather.gov/lzk.
In the hours before
Special weather statement, Oct 13, 5:56 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Little Rock AR
556 PM CDT Wed Oct 13 2021
ARZ030-037-132330-
Scott AR-Logan AR-
556 PM CDT Wed Oct 13 2021
...Strong thunderstorms will impact portions of western Logan and
northwestern Scott Counties through 630 PM CDT...
At 555 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Lavaca to near Bloomer to Burnville to
near Huntington. Movement was east at 45 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Booneville... Paris...
Mansfield... Magazine...
Subiaco... Ratcliff...
Blue Mountain... Echo...
Caulksville... Barber...
Roseville... Lucas...
Chismville... Wilkins...
Carbon City... Sugar Grove...
Driggs... Carolan...
Grayson... Glendale in Logan County...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 3508 9422 3510 9414 3514 9414 3514 9403
3523 9403 3523 9392 3532 9391 3531 9381
3543 9381 3540 9379 3536 9375 3538 9369
3540 9367 3534 9361 3528 9362 3503 9376
3505 9423 3506 9423 3506 9425
TIME...MOT...LOC 2255Z 257DEG 38KT 3529 9421 3525 9416 3519 9417 3512
9423
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
62The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 13, 2:32 PM CDT | Flash Flood Watch | LZK | 23 hr | |
| Oct 13, 6:10 PM CDT | Severe Thunderstorm Warning | LZK | Johnson, Logan, Scott | 35 min |
Nearby
Special Weather Statements in Arkansas, 2021Every special weather statement in 2021
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.