Alert archive / Tennessee / Areal Flood Warnings in 2016

Areal Flood Warning 13, NWS Huntsville, AL

March 31, 2016Franklin County, Lincoln County, Moore County, Tennessee

NWS Huntsville, AL issued this areal flood warning at Mar 31, 2016, 11:57 PM CDT for Franklin County, Lincoln County, Moore County, Tennessee. It was in force for 3 hr. 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 31, 2016, 11:57 PM CDT (04:57 UTC)
Expired: Apr 1, 2016, 3:00 AM CDT
In force: 3 hr
Issued by: NWS Huntsville, AL
Area: Storm-based polygon
Flood severity: None

Counties Franklin County, TN, Lincoln County, TN, Moore County, TN

The radar

The Northeast Alabama radar (KHTX), 38 km from the middle of the area, began a volume at 04:58 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

Nashville Metro, TN (KBNA), launched 00:00Z, 5.0 hours before the alert went out and 107 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: 217 J/kg
Mixed-layer CIN: -157 J/kg
Mixed-layer LCL: 861 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 488 m²/s²
0-3 km storm-relative helicity: 602 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Huntsville, AL wrote its last area forecast discussion before this areal flood warning went out at Mar 31, 10:28 PM CDT, 1 hour 29 minutes earlier.

Area forecast discussion, Mar 31, 10:28 PM CDT, 1 hour 29 minutes before

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Hazardous weather outlook, Mar 31, 11:56 PM CDT, 1 minute before

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In the hours before

Special weather statement, Mar 31, 9:31 PM CDT, 2 hours 26 minutes before

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Local storm report, Mar 31, 9:34 PM CDT, 2 hours 23 minutes before

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Local storm report, Mar 31, 10:00 PM CDT, 1 hour 57 minutes before

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Local storm report, Mar 31, 10:05 PM CDT, 1 hour 52 minutes before

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Special weather statement, Mar 31, 10:25 PM CDT, 1 hour 32 minutes before

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Local storm report, Mar 31, 10:29 PM CDT, 1 hour 28 minutes before

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The office that day

Everything else NWS Huntsville, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 31, 7:08 PM CDT	Special Weather Statement	HUN	Franklin	52 min
Mar 31, 7:17 PM CDT	Tornado Warning Tornado observed	HUN	Madison	28 min
Mar 31, 7:22 PM CDT	Special Weather Statement	HUN	Lawrence	23 min
Mar 31, 7:30 PM CDT	Tornado Warning	HUN	Limestone	30 min
Mar 31, 7:31 PM CDT	Severe Thunderstorm Warning	HUN	Lawrence	29 min
Mar 31, 7:50 PM CDT	Special Weather Statement	HUN	Franklin	25 min
Mar 31, 7:55 PM CDT	Severe Thunderstorm Warning	HUN	Lawrence, Limestone, Morgan	23 min
Mar 31, 7:58 PM CDT	Severe Thunderstorm Warning	HUN	Colbert, Lauderdale	13 min
Mar 31, 8:25 PM CDT	Special Weather Statement	HUN	Morgan	35 min
Mar 31, 8:35 PM CDT	Tornado Warning	HUN	Lawrence, Morgan	25 min
Mar 31, 8:38 PM CDT	Special Weather Statement	HUN	Marshall	37 min
Mar 31, 8:55 PM CDT	Tornado Warning	HUN	Limestone, Madison, Morgan	35 min
Mar 31, 9:24 PM CDT	Tornado Warning	HUN	Madison	23 min
Mar 31, 9:31 PM CDT	Special Weather Statement	HUN	Limestone	29 min
Mar 31, 9:35 PM CDT	Tornado Warning	HUN	Madison	12 min
Mar 31, 10:25 PM CDT	Special Weather Statement	HUN	Jackson	35 min
Mar 31, 7:43 PM CDT	Severe Thunderstorm Warning	HUN	Franklin, Lincoln, Moore	32 min
Mar 31, 8:06 PM CDT	Severe Thunderstorm Warning	HUN	Franklin	24 min
Mar 31, 8:31 PM CDT	Special Weather Statement	HUN	Franklin, Lincoln	59 min
Mar 31, 8:55 PM CDT	Flash Flood Warning	HUN	Franklin, Lincoln, Moore	3 hr
Mar 31, 9:13 PM CDT	Special Weather Statement	HUN	Franklin, Lincoln	47 min
Mar 31, 9:18 PM CDT	Severe Thunderstorm Warning	HUN	Lincoln, Moore	27 min
Mar 31, 9:39 PM CDT	Severe Thunderstorm Warning	HUN	Franklin, Lincoln	36 min
Mar 31, 10:00 PM CDT	Tornado Warning	HUN	Franklin	30 min
Apr 1, 8:29 AM CDT	River Flood Warning	HUN	Franklin, Lincoln	11 hr
Apr 1, 9:21 AM CDT	Areal Flood Warning	HUN	Franklin	10 hr

Nearby

Areal Flood Warnings in Tennessee, 2016 Every areal flood warning in 2016

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.