Alert archive / Arkansas / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 82, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Apr 13, 2018, 5:58 PM CDT for 4 counties in Arkansas. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 13, 2018, 5:58 PM CDT (22:58 UTC)
- Expired
- Apr 13, 2018, 6:45 PM CDT
- In force
- 47 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Johnson County, AR, Logan County, AR, Newton County, AR, Pope County, AR
The radar
The Western Arkansas radar (KSRX), 95 km from the middle of the area, began a volume at 22:57 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 13, 1:50 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 11.0 hours before the alert went out and 157 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
- 1715 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 572 m²/s²
- 0-3 km storm-relative helicity
- 541 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Apr 13, 3:32 PM CDT, 2 hours 26 minutes earlier.
Area forecast discussion, Apr 13, 3:32 PM CDT, 2 hours 26 minutes before
Area Forecast Discussion National Weather Service Little Rock AR 332 PM CDT Fri Apr 13 2018 .SHORT TERM...Tonight Through Saturday Overall forecast philosophy remains constant during this short period. Conditions for well organized convection are indicated by 18z KLZK sounding. Still a question remains how quickly convection will grow upscale to a more linear mode. Heavy convection is expected to clear southeast sections by 14/14z Text && .LONG TERM...Saturday night through Friday The biggest concern in the long term periods will be near-freezing temperatures Sunday and Monday morning. Closed upper low will follow the surface system departing on Saturday night, with the primary track north of the region. Cloud cover associated with the system will pass through northern Arkansas, with clearing over the remainder of the area. With much colder air moving into the region, temperatures will fall into the 30s in most areas, and we could see readings close to freezing in the northwest and portions of the west by Sunday morning. However, the clouds remaining in the north should preclude a hard freeze. Surface high pressure will move into the region on Sunday, with clouds clearing out. Freezing/near-freezing temperatures will be a little more widespread on Sunday night/Monday morning, with a freeze most likely in the west and north. Some portions of the northwest (particularly the usual sheltered valley areas) could see temperatures in the 20s. The high will shift eastward Monday into Tuesday, with winds coming around to the south, and temperatures warming back into the 70s to around 80 degrees. Around mid-week, a weaker front will move through the region, yielding little more than slight rain chances and a slight increase in cloud cover. There will be slight cooling behind this front. Toward the end of the week, there will be another system approaching the area, bringing another chance for rainfall. && .PRELIMINARY POINT TEMPS/POPS... Batesville AR 60 68 38 53 / 100 50 10 10 Camden AR 57 66 38 58 / 100 50 10 0 Harrison AR 47 57 31 47 / 60 10 10 10 Hot Springs AR 54 61 36 55 / 100 30 10 0 Little Rock AR 58 65 38 55 / 100 40 10 0 Monticello AR 62 68 40 56 / 100 60 10 0 Mount Ida AR 50 60 34 54 / 90 20 0 0 Mountain Home AR 52 61 32 48 / 80 20 10 10 Newport AR 61 68 40 53 / 100 50 10 10 Pine Bluff AR 61 66 39 55 / 90 50 10 0 Russellville AR 51 60 36 54 / 90 20 10 10 Searcy AR 59 66 38 55 / 90 50 10 10 Stuttgart AR 61 67 41 55 / 100 60 10 0 && .LZK Watches/Warnings/Advisories... Wind Advisory until 10 PM CDT this evening FOR Arkansas-Desha- Drew-Independence-Jackson-Jefferson-Lincoln-Lonoke-Monroe- Prairie-White-Woodruff. Flash Flood Watch through late tonight FOR Arkansas-Bradley- Desha-Drew-Lincoln-Monroe. && Short Term...99 / Long Term...57
Hazardous weather outlook, Apr 13, 6:39 AM CDT, 11 hours 19 minutes before
Hazardous Weather Outlook National Weather Service Little Rock AR 639 AM CDT Fri Apr 13 2018 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-141145- Boone-Marion-Baxter-Fulton-Sharp-Newton-Searcy-Stone-Izard- Independence-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- 639 AM CDT Fri Apr 13 2018 This Hazardous Weather Outlook is for a Large Part of Arkansas. .DAY ONE...Today and Tonight Showers and thunderstorms will affect the state on today and tonight, as a storm system moves through the region. Scattered strong to severe thunderstorms will be possible, with the primary threats of damaging winds and large hail possible. Also, a few tornadoes will be possible, primarily in the afternoon and evening hours today. Additionally, heavy rainfall will be a concern with any stronger storms, with localized flooding and flash flooding possible. Also, winds will be elevated today from the south, and be 10 to 20 mph, some gusts to around 25 to 30 mph. Caution is advised on area bodies of water due to the increased winds. .DAYS TWO THROUGH SEVEN...Saturday Through Thursday The storm system will be pushing through Arkansas on Saturday, and will gradually take the showers and thunderstorms to the east of the state. Localized flooding could be on going with the heavy rain from Friday night. Any remaining storms may contain heavy rain before all moving out of Arkansas Saturday night. Much colder air again will filter in behind the cold front, and spotty locations will see around freezing temperatures Sunday and Monday mornings. Mostly dry Monday and the coming week. .Spotter Information Statement... Spotter activation will be needed this afternoon and evening due to the potential of severe storms. && Visit NWS Little Rock on the web. Go to http://weather.gov/lzk. 59
In the hours before
Special weather statement, Apr 13, 3:14 PM CDT, 2 hours 44 minutes before
Special Weather Statement
National Weather Service Little Rock AR
314 PM CDT FRI APR 13 2018
ARZ040-041-132100-
Polk AR-Montgomery AR-
314 PM CDT FRI APR 13 2018
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN POLK AND WESTERN
MONTGOMERY COUNTIES UNTIL 400 PM CDT...
At 314 PM CDT, Doppler radar was tracking a strong thunderstorm over
Shady, or 11 miles north of Umpire, moving northeast at 40 mph.
Half inch hail and wind gusts up to 50 mph will be possible with this
storm.
Locations impacted include...
Oden... Shady...
Opal... Little Missouri Falls Recreatio...
Bard Springs Recreation Area... Caney Creek Wilderness...
Albert Pike Recreation Area... Big Fork...
Board Camp... Pine Ridge...
Shady Lake Recreation Area... Fancyhill...
Cherry Hill in Polk County... Roaring Branch Natural Area...
A tornado watch remains in effect until 1000 PM CDT for western and
southwestern Arkansas.
LAT...LON 3452 9416 3469 9406 3468 9393 3466 9392
3467 9388 3471 9387 3471 9382 3472 9382
3472 9378 3473 9378 3473 9375 3474 9374
3435 9376 3435 9412 3442 9416
TIME...MOT...LOC 2014Z 219DEG 36KT 3443 9409
CavanaughThe office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 4:04 AM CDT | Wind Advisory | LZK | Arkansas, Desha, Drew, Independence, Jackson, Jefferson and 6 more | 18 hr |
| Apr 13, 2:46 PM CDT | Flash Flood Watch | LZK | Arkansas, Bradley, Desha, Drew, Lincoln, Monroe | 15 hr |
| Apr 13, 3:14 PM CDT | Special Weather Statement | LZK | Montgomery | 46 min |
| Apr 13, 5:31 PM CDT | Tornado Warning | LZK | Boone | 29 min |
| Apr 13, 5:49 PM CDT | Severe Thunderstorm Warning | LZK | Searcy, Stone, Van Buren | 41 min |
| Apr 13, 6:13 PM CDT | Severe Thunderstorm Warning | LZK | Polk, Scott | 47 min |
| Apr 13, 6:21 PM CDT | Severe Thunderstorm Warning | LZK | Johnson, Logan, Scott, Yell | 39 min |
| Apr 13, 6:41 PM CDT | Severe Thunderstorm Warning | LZK | Johnson, Newton, Pope, Searcy, Van Buren | 49 min |
| Apr 13, 6:47 PM CDT | Tornado Warning | LZK | Johnson, Newton | 43 min |
| Apr 13, 6:56 PM CDT | Severe Thunderstorm Warning | LZK | Logan, Scott, Yell | 49 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2018Every severe thunderstorm warning in 2018
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.