Alert archive / Arkansas / Special Weather Statements in 2011
Special Weather Statement, NWS Memphis, TN
NWS Memphis, TN issued this special weather statement at Aug 12, 2011, 9:43 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 outline as issued.
The facts
- Issued
- Aug 12, 2011, 9:43 PM CDT (02:43 UTC)
- Expired
- Aug 12, 2011, 10:30 PM CDT
- In force
- 47 min
- Issued by
- NWS Memphis, TN
Counties Crittenden County, AR, Cross County, AR, Lee County, AR, St. Francis County, AR
The radar
The Memphis radar (KNQA), 88 km from the middle of the area, began a volume at 02:42 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
Little Rock, AR (KLZK), launched 00:00Z, 2.7 hours before the alert went out and 77 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
- 4083 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1095 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 9.3
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 10:17 PM CDT | Special Weather Statement | MEG | DeSoto | 43 min |
| Aug 12, 10:34 PM CDT | Special Weather Statement | MEG | DeSoto, Tate | 41 min |
| Aug 12, 11:07 PM CDT | Special Weather Statement | MEG | Marshall | 38 min |
| Aug 12, 11:42 PM CDT | Special Weather Statement | MEG | Benton, Tippah | 48 min |
| Aug 12, 7:54 PM CDT | Special Weather Statement | MEG | Dyer, Lake, Obion | 36 min |
| Aug 12, 8:02 PM CDT | Special Weather Statement | MEG | Lauderdale | 43 min |
| Aug 12, 7:06 PM CDT | Severe Thunderstorm Warning | MEG | Lawrence, Randolph | 54 min |
| Aug 12, 7:16 PM CDT | Special Weather Statement | MEG | Clay | 44 min |
| Aug 12, 7:41 PM CDT | Special Weather Statement | MEG | Greene | 49 min |
| Aug 12, 8:11 PM CDT | Severe Thunderstorm Warning | MEG | Craighead, Greene, Lawrence | 49 min |
| Aug 12, 8:52 PM CDT | Special Weather Statement | MEG | Crittenden, Cross, Poinsett | 53 min |
| Aug 12, 9:07 PM CDT | Special Weather Statement | MEG | Mississippi | 38 min |
| Aug 13, 5:10 PM CDT | Special Weather Statement | MEG | Clay | 35 min |
Nearby
Special Weather Statements in Arkansas, 2011Every special weather statement 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.