Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 836, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Aug 13, 2011, 1:09 AM CDT for Clark County, Arkansas. It was in force for 31 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 13, 2011, 1:09 AM CDT (06:09 UTC)
- Expired
- Aug 13, 2011, 1:40 AM CDT
- In force
- 31 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
County Clark County, AR
The radar
The Little Rock radar (KLZK), 121 km from the middle of the area, began a volume at 06:11 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
Shreveport, LA (KSHV), launched 00:00Z, 6.2 hours before the alert went out and 183 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
- 51 J/kg
- Mixed-layer CIN
- -85 J/kg
- Mixed-layer LCL
- 3044 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- -9 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 13, 12:47 AM CDT, 22 minutes earlier.
Area forecast discussion, Aug 13, 12:47 AM CDT, 22 minutes before
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Local storm report, Aug 12, 10:42 PM CDT, 2 hours 27 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 12, 7:05 PM CDT | Severe Thunderstorm Warning | LZK | Sharp | 25 min |
| Aug 12, 7:16 PM CDT | Special Weather Statement | LZK | Scott | 29 min |
| Aug 12, 7:19 PM CDT | Special Weather Statement | LZK | Logan, Yell | 31 min |
| Aug 12, 7:41 PM CDT | Severe Thunderstorm Warning | LZK | Logan, Yell | 36 min |
| Aug 12, 7:53 PM CDT | Special Weather Statement | LZK | Conway | 32 min |
| Aug 12, 7:57 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Logan, Pope, Yell | 33 min |
| Aug 12, 8:09 PM CDT | Severe Thunderstorm Warning | LZK | Garland, Montgomery, Perry, Saline, Scott, Yell | 36 min |
| Aug 12, 8:12 PM CDT | Special Weather Statement | LZK | Sharp | 43 min |
| Aug 12, 8:14 PM CDT | Severe Thunderstorm Warning | LZK | Cleburne, Independence, Jackson | 46 min |
| Aug 12, 8:27 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Faulkner, Perry, Pope, Van Buren, Yell | 33 min |
| Aug 12, 8:48 PM CDT | Severe Thunderstorm Warning | LZK | Perry, Pulaski, Saline | 42 min |
| Aug 12, 8:51 PM CDT | Severe Thunderstorm Warning | LZK | Cleburne, Independence, Jackson, White, Woodruff | 39 min |
| Aug 12, 8:58 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Faulkner, Perry, Pulaski | 47 min |
| Aug 12, 9:01 PM CDT | Special Weather Statement | LZK | Garland, Hot Spring | 44 min |
| Aug 12, 9:16 PM CDT | Severe Thunderstorm Warning | LZK | Garland, Grant, Hot Spring, Saline | 44 min |
| Aug 12, 9:26 PM CDT | Severe Thunderstorm Warning | LZK | Jackson, White, Woodruff | 49 min |
| Aug 12, 9:28 PM CDT | Severe Thunderstorm Warning | LZK | Grant, Lonoke, Pulaski, Saline | 47 min |
| Aug 12, 9:41 PM CDT | Severe Thunderstorm Warning | LZK | Cleburne, Faulkner, Lonoke, Prairie, Pulaski, White | 49 min |
| Aug 12, 9:56 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Dallas, Grant, Hot Spring, Jefferson, Saline | 49 min |
| Aug 12, 10:19 PM CDT | Severe Thunderstorm Warning | LZK | Grant, Jefferson, Lonoke, Prairie, Pulaski, Saline | 41 min |
| Aug 12, 10:41 PM CDT | Special Weather Statement | LZK | Lonoke | 59 min |
| Aug 12, 10:51 PM CDT | Special Weather Statement | LZK | Clark, Cleveland, Dallas, Grant, Ouachita | 59 min |
| Aug 12, 11:03 PM CDT | Special Weather Statement | LZK | Jefferson, Lonoke | 62 min |
| Aug 13, 12:56 AM CDT | Special Weather Statement | LZK | Bradley, Calhoun, Drew | 59 min |
| Aug 13, 2:29 AM CDT | Special Weather Statement | LZK | Dallas | 46 min |
| Aug 13, 1:32 PM CDT | Flash Flood Warning | LZK | Cleveland, Dallas, Grant, Jefferson, Lincoln | 4 hr |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2011Every severe thunderstorm warning in 2011
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.