Alert archive / Tennessee / Flash Flood Warnings in 2010

Flash Flood Warning 177, NWS Memphis, TN

June 18, 2010Shelby County, Tipton County, Tennessee; Crittenden County, Arkansas

NWS Memphis, TN issued this flash flood warning at Jun 18, 2010, 5:50 PM CDT for Shelby County, Tipton County, Tennessee; Crittenden County, Arkansas. It was in force for 81 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 18, 2010, 5:50 PM CDT (22:50 UTC)
Expired: Jun 18, 2010, 7:11 PM CDT
In force: 81 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Flood severity: None

Counties Crittenden County, AR, Shelby County, TN, Tipton County, TN

The radar

The Memphis radar (KNQA), 12 km from the middle of the area, began a volume at 22:53 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

Jackson, MS (KJAN), launched 12:00Z, 10.8 hours before the alert went out and 331 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: 2524 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 787 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 26 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 flash flood 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 flash flood warning went out at Jun 18, 3:58 PM CDT, 1 hour 52 minutes earlier.

Area forecast discussion, Jun 18, 3:58 PM CDT, 1 hour 52 minutes before

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Hazardous weather outlook, Jun 18, 3:57 PM CDT, 1 hour 53 minutes before

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In the hours before

Local storm report, Jun 18, 4:57 PM CDT, 53 minutes before

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Special weather statement, Jun 18, 4:59 PM CDT, 51 minutes before

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Special weather statement, Jun 18, 5:08 PM CDT, 42 minutes before

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Special weather statement, Jun 18, 5:26 PM CDT, 24 minutes before

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Special weather statement, Jun 18, 5:33 PM CDT, 17 minutes before

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Special weather statement, Jun 18, 5:50 PM CDT, 0 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
Jun 18, 3:30 AM CDT	Heat Advisory	MEG	Carroll, Chester, Crockett, Decatur, Dyer, Fayette and 14 more	7 days
Jun 18, 3:28 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Shelby	47 min
Jun 18, 3:34 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Shelby	41 min
Jun 18, 3:57 PM CDT	Flash Flood Warning	MEG	Fayette, Shelby	103 min
Jun 18, 4:14 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Shelby	34 min
Jun 18, 4:18 PM CDT	Severe Thunderstorm Warning	MEG	Shelby	42 min
Jun 18, 4:42 PM CDT	Severe Thunderstorm Warning	MEG	Haywood, Lauderdale	48 min
Jun 18, 5:09 PM CDT	Flash Flood Warning	MEG	Fayette	44 min
Jun 18, 5:12 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Shelby	16 min
Jun 18, 4:31 PM CDT	Severe Thunderstorm Warning	MEG	Marshall	44 min

Nearby

Flash Flood Warnings in Tennessee, 2010 Flash Flood Warnings in Arkansas, 2010 Every flash flood 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.