Alert archive / Arkansas / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 20, NWS Memphis, TN

March 25, 2010Cross County, Poinsett County, Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at Mar 25, 2010, 1:02 PM CDT for Cross County, Poinsett County, Arkansas. It was in force for 30 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 25, 2010, 1:02 PM CDT (18:02 UTC)
Expired: Mar 25, 2010, 1:32 PM CDT
In force: 30 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon

Counties Cross County, AR, Poinsett County, AR

The radar

The Memphis radar (KNQA), 77 km from the middle of the area, began a volume at 18:04 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 12:00Z, 6.0 hours before the alert went out and 97 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 755 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: -126 m²/s²
0-3 km storm-relative helicity: -171 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 25, 12:37 PM CDT, 25 minutes earlier.

Area forecast discussion, Mar 25, 12:37 PM CDT, 25 minutes before

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Hazardous weather outlook, Mar 25, 5:39 AM CDT, 7 hours 23 minutes before

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In the hours before

Special weather statement, Mar 25, 12:20 PM CDT, 42 minutes before

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Special weather statement, Mar 25, 12:54 PM CDT, 8 minutes before

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The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 25, 3:15 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Henderson, McNairy	34 min
Mar 25, 3:19 PM CDT	Severe Thunderstorm Warning	MEG	Shelby, Tipton	41 min
Mar 25, 3:43 PM CDT	Areal Flood Advisory	MEG	Dyer, Gibson, Lake, Obion, Weakley	92 min
Mar 25, 3:44 PM CDT	Severe Thunderstorm Warning	MEG	Hardin, McNairy	46 min
Mar 25, 3:09 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Pontotoc, Prentiss, Tippah, Union	51 min
Mar 25, 3:40 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee	50 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2010 Every severe thunderstorm warning in 2010

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.