Alert archive / Arkansas / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 290, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Aug 11, 2017, 3:26 PM CDT for Ouachita 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 counties it named.
The facts
- Issued
- Aug 11, 2017, 3:26 PM CDT (20:26 UTC)
- Expired
- Aug 11, 2017, 4:00 PM CDT
- In force
- 34 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Ouachita County, AR
The radar
The Little Rock radar (KLZK), 150 km from the middle of the area, began a volume at 20:28 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
Jackson, MS (KJAN), launched 12:00Z, 8.4 hours before the alert went out and 297 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
- 154 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 652 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 17 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 Aug 11, 3:09 PM CDT, 17 minutes earlier.
Area forecast discussion, Aug 11, 3:09 PM CDT, 17 minutes before
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</html>Hazardous weather outlook, Aug 11, 1:37 PM CDT, 1 hour 49 minutes before
Hazardous Weather Outlook...Updated National Weather Service Little Rock AR 137 PM CDT Fri Aug 11 2017 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-120915- 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- 137 PM CDT Fri Aug 11 2017 This Hazardous Weather Outlook is for a Large Part of Arkansas. .DAY ONE...Through Tonight Scattered showers and thunderstorms will be possible. The chance for widespread severe weather is low, but a few storms could briefly become strong or severe. Gusty winds would be the primary concern with stronger storms. Also, heavy rainfall will be possible with any stronger storms as well. This could allow for localized flooding issues, but at this time the flash flood threat is not widespread. .DAYS TWO THROUGH SEVEN...Saturday Through Thursday There will be a marginal risk of severe thunderstorms over far southwest Arkansas on Saturday, as a weak surface boundary and upper system focus storm development over southern Oklahoma, north Texas and far southwest Arkansas. The threat will be isolated, and strong winds and hail will be the primary concerns. Otherwise, isolated to scattered showers and thunderstorms are forecast each day for parts of Arkansas. The overall severe storm threat will be isolated and low. Also, due to the potential for repeated rain chances over Arkansas over the weekend and into next week, localized flooding and elevated river levels may be seen. .Spotter Information Statement... Spotter activation is not anticipated. && Visit NWS Little Rock on the web. Go to http://weather.gov/lzk.
In the hours before
Special weather statement, Aug 11, 1:09 PM CDT, 2 hours 17 minutes before
Special Weather Statement
National Weather Service Little Rock AR
109 PM CDT FRI AUG 11 2017
ARZ053-054-062-111900-
Hot Spring AR-Clark AR-Dallas AR-
109 PM CDT FRI AUG 11 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN CLARK...SOUTHWESTERN
GRANT...NORTHWESTERN DALLAS AND SOUTHEASTERN HOT SPRING COUNTIES
UNTIL 200 PM CDT...
At 109 PM CDT, Doppler radar was tracking a strong thunderstorm over
Caddo Valley, or near Arkadelphia, moving east at 25 mph.
Dime size hail and wind gusts up to 50 mph will be possible with this
storm.
Locations impacted include...
Arkadelphia... Caddo Valley...
Donaldson... Friendship...
Lono... Joan...
Lower Lake Recreation Area... Willow...
Dalark... Griffithtown...
Manning... Midway in Hot Spring County...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3411 9317 3418 9317 3425 9312 3426 9267
3415 9267 3399 9277
TIME...MOT...LOC 1809Z 275DEG 21KT 3417 9306
CavanaughSpecial weather statement, Aug 11, 1:45 PM CDT, 1 hour 41 minutes before
Special Weather Statement National Weather Service Little Rock AR 145 PM CDT FRI AUG 11 2017 ARZ053-054-062-111915- Hot Spring AR-Clark AR-Dallas AR- 145 PM CDT FRI AUG 11 2017 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL CLARK...WESTERN DALLAS AND SOUTHWESTERN HOT SPRING COUNTIES UNTIL 215 PM CDT... At 144 PM CDT, a strong thunderstorm was reported 8 miles north of Halfway, or 14 miles northwest of Arkadelphia, moving southeast at 35 mph. Dime size hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Arkadelphia... Caddo Valley... Sparkman... Gum Springs in Clark County... Richwoods... DeGray Lake State Park... Alpine... Lower Lake Recreation Area... Curtis... Manning... Joan... Hollywood... Dalark... Griffithtown... PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3415 9343 3431 9333 3410 9269 3386 9284 TIME...MOT...LOC 1844Z 296DEG 32KT 3421 9331 55
Special weather statement, Aug 11, 2:08 PM CDT, 1 hour 18 minutes before
Special Weather Statement National Weather Service Little Rock AR 208 PM CDT FRI AUG 11 2017 ARZ063-064-068-069-112000- Bradley AR-Drew AR-Cleveland AR-Lincoln AR- 208 PM CDT FRI AUG 11 2017 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BRADLEY... SOUTHEASTERN CLEVELAND...NORTHWESTERN DREW AND SOUTHWESTERN LINCOLN COUNTIES UNTIL 300 PM CDT... At 207 PM CDT, Doppler radar was tracking a strong thunderstorm near Marks Mill State Park, or 11 miles northwest of Warren, moving east at 25 mph. Dime size hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Warren... Wilmar... Kingsland... Weeks... Brandon... Mt Elba... Tipton... Plantersville... Marks Mill State Park... Hebron... Herbine... Cornerville... Rowell... Orlando... Pansy... Rock Springs... New Edinburg... Relfs Bluff... Rye... PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3362 9231 3390 9233 3389 9185 3362 9183 TIME...MOT...LOC 1907Z 267DEG 23KT 3375 9219 67
Special weather statement, Aug 11, 2:36 PM CDT, 50 minutes before
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</html>Special weather statement, Aug 11, 2:40 PM CDT, 46 minutes before
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</html>Local storm report, Aug 11, 3:05 PM CDT, 21 minutes before
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</html>The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 12:00 PM CDT | Special Weather Statement | LZK | Grant, Lonoke | 45 min |
| Aug 11, 12:21 PM CDT | Severe Thunderstorm Warning | LZK | Grant, Jefferson | 39 min |
| Aug 11, 12:31 PM CDT | Severe Thunderstorm Warning | LZK | Jackson, White, Woodruff | 15 min |
| Aug 11, 1:00 PM CDT | Special Weather Statement | LZK | Arkansas, Jefferson | 45 min |
| Aug 11, 1:09 PM CDT | Special Weather Statement | LZK | Hot Spring | 51 min |
| Aug 11, 1:45 PM CDT | Special Weather Statement | LZK | Clark | 30 min |
| Aug 11, 2:08 PM CDT | Special Weather Statement | LZK | Cleveland | 52 min |
| Aug 11, 2:11 PM CDT | Severe Thunderstorm Warning | LZK | Bradley, Cleveland, Drew, Lincoln | 34 min |
| Aug 11, 2:36 PM CDT | Special Weather Statement | LZK | Ouachita | 39 min |
| Aug 11, 2:40 PM CDT | Special Weather Statement | LZK | Drew | 35 min |
| Aug 11, 3:03 PM CDT | Severe Thunderstorm Warning | LZK | Bradley, Calhoun, Ouachita | 42 min |
| Aug 11, 3:29 PM CDT | Severe Thunderstorm Warning | LZK | Drew | 16 min |
| Aug 11, 3:49 PM CDT | Special Weather Statement | LZK | Bradley | 41 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2017Every severe thunderstorm warning in 2017
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.