Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 552, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Jun 15, 2011, 1:20 AM CDT for Montgomery County, Polk County, Scott County, Arkansas. It was in force for 40 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
- Jun 15, 2011, 1:20 AM CDT (06:20 UTC)
- Expired
- Jun 15, 2011, 2:00 AM CDT
- In force
- 40 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
Counties Montgomery County, AR, Polk County, AR, Scott County, AR
The radar
The Western Arkansas radar (KSRX), 81 km from the middle of the area, began a volume at 06:22 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, 6.3 hours before the alert went out and 240 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
- 798 J/kg
- Mixed-layer CIN
- -174 J/kg
- Mixed-layer LCL
- 2824 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 48 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 Jun 15, 12:14 AM CDT, 1 hour 6 minutes earlier.
Area forecast discussion, Jun 15, 12:14 AM CDT, 1 hour 6 minutes before
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Special weather statement, Jun 15, 12:41 AM CDT, 39 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 |
|---|---|---|---|---|
| Jun 15, 12:34 AM CDT | Severe Thunderstorm Warning | LZK | Johnson, Logan, Newton, Pope, Scott, Yell | 41 min |
| Jun 15, 12:41 AM CDT | Special Weather Statement | LZK | Boone | 29 min |
| Jun 15, 12:51 AM CDT | Severe Thunderstorm Warning | LZK | Boone, Marion, Newton, Searcy | 39 min |
| Jun 15, 1:08 AM CDT | Severe Thunderstorm Warning | LZK | Conway, Johnson, Logan, Newton, Pope, Searcy and 2 more | 52 min |
| Jun 15, 1:30 AM CDT | Special Weather Statement | LZK | Marion | 30 min |
| Jun 15, 1:55 AM CDT | Severe Thunderstorm Warning | LZK | Baxter, Cleburne, Conway, Pope, Searcy, Stone and 1 more | 50 min |
| Jun 15, 1:56 AM CDT | Special Weather Statement | LZK | Baxter | 29 min |
| Jun 15, 2:06 AM CDT | Special Weather Statement | LZK | Searcy | 29 min |
| Jun 15, 2:30 AM CDT | Special Weather Statement | LZK | Garland, Montgomery | 45 min |
| Jun 15, 2:54 AM CDT | Special Weather Statement | LZK | Izard, Sharp | 46 min |
| Jun 15, 7:47 AM CDT | Special Weather Statement | LZK | Stone | 43 min |
| Jun 15, 10:21 AM CDT | Special Weather Statement | LZK | Van Buren | 44 min |
| Jun 15, 10:29 AM CDT | Severe Thunderstorm Warning | LZK | Cleburne, Conway, Faulkner, Van Buren | 46 min |
| Jun 15, 11:14 AM CDT | Special Weather Statement | LZK | Independence | 46 min |
| Jun 15, 11:19 AM CDT | Special Weather Statement | LZK | Van Buren | 46 min |
| Jun 15, 6:37 PM CDT | Special Weather Statement | LZK | Lincoln | 43 min |
| Jun 15, 6:57 PM CDT | Special Weather Statement | LZK | Jefferson | 48 min |
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.