Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 33, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Mar 26, 2011, 7:46 PM CDT for Desha County, Arkansas. It was in force for 29 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
- Mar 26, 2011, 7:46 PM CDT (00:46 UTC)
- Expired
- Mar 26, 2011, 8:15 PM CDT
- In force
- 29 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
County Desha County, AR
The radar
The Little Rock radar (KLZK), 145 km from the middle of the area, began a volume at 00:47 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 |
|---|---|---|---|
| Mar 26, 3:27 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 0.8 hours before the alert went out and 163 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
- 3 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 439 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.1
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 Mar 26, 6:55 PM CDT, 51 minutes earlier.
Area forecast discussion, Mar 26, 6:55 PM CDT, 51 minutes before
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Special weather statement, Mar 26, 7:33 PM CDT, 13 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 |
|---|---|---|---|---|
| Mar 26, 7:33 PM CDT | Special Weather Statement | LZK | Desha | 17 min |
| Mar 26, 7:34 PM CDT | Special Weather Statement | LZK | Desha | 31 min |
| Mar 26, 8:26 PM CDT | Special Weather Statement | LZK | Desha | 29 min |
| Mar 27, 11:05 AM CDT | Freeze Warning | LZK | Baxter, Fulton, Izard, Marion, Sharp, Stone | 22 hr |
| Mar 27, 12:52 PM CDT | Special Weather Statement | LZK | Drew | 43 min |
| Mar 27, 1:59 PM CDT | Special Weather Statement | LZK | Dallas | 46 min |
| Mar 27, 2:03 PM CDT | Severe Thunderstorm Warning | LZK | Calhoun, Dallas, Ouachita | 27 min |
| Mar 27, 2:56 PM CDT | Special Weather Statement | LZK | Scott | 44 min |
| Mar 27, 3:19 PM CDT | Special Weather Statement | LZK | Dallas | 31 min |
| Mar 27, 3:25 PM CDT | Severe Thunderstorm Warning | LZK | Arkansas, Jefferson, Lincoln | 35 min |
| Mar 27, 4:17 PM CDT | Special Weather Statement | LZK | Garland | 28 min |
| Mar 27, 4:42 PM CDT | Special Weather Statement | LZK | Saline | 28 min |
| Mar 27, 5:13 PM CDT | Severe Thunderstorm Warning | LZK | Lonoke, Prairie, Pulaski, Saline | 37 min |
| Mar 27, 6:39 PM CDT | Special Weather Statement | LZK | Montgomery | 31 min |
| Mar 27, 6:49 PM CDT | Severe Thunderstorm Warning | LZK | Montgomery | 26 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.