Alert archive / Alabama / Flash Flood Warnings in 2023

Flash Flood Warning 16, NWS Huntsville, AL

July 3, 2023Franklin County, Alabama

NWS Huntsville, AL issued this flash flood warning at Jul 3, 2023, 2:38 PM CDT for Franklin County, Alabama. It was in force for 107 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: Jul 3, 2023, 2:38 PM CDT (19:38 UTC)
Expired: Jul 3, 2023, 4:25 PM CDT
In force: 107 min
Issued by: NWS Huntsville, AL
Area: Storm-based polygon
Flood severity: None

County Franklin County, AL

The radar

The Columbus AFB radar (KGWX), 75 km from the middle of the area, began a volume at 19:42 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 12:00Z, 7.6 hours before the alert went out and 197 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: 610 J/kg
Mixed-layer CIN: -90 J/kg
Mixed-layer LCL: 1375 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 113 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 Huntsville, AL wrote its last area forecast discussion before this flash flood warning went out at Jul 2, 5:06 PM CDT, 21 hours 32 minutes earlier.

Area forecast discussion, Jul 2, 5:06 PM CDT, 21 hours 32 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
Jul 3, 4:54 AM CDT	Special Weather Statement	HUN	Cullman	36 min
Jul 3, 5:37 AM CDT	Special Weather Statement	HUN	Cullman	38 min
Jul 3, 6:32 AM CDT	Special Weather Statement	HUN	Cullman	28 min
Jul 3, 7:04 AM CDT	Special Weather Statement	HUN	Morgan	26 min
Jul 3, 7:30 AM CDT	Special Weather Statement	HUN	Madison	45 min
Jul 3, 8:06 AM CDT	Special Weather Statement	HUN	Jackson	39 min
Jul 3, 8:10 AM CDT	Special Weather Statement	HUN	Jackson	50 min
Jul 3, 8:30 AM CDT	Special Weather Statement	HUN	Morgan	30 min
Jul 3, 9:29 AM CDT	Special Weather Statement	HUN	Jackson	31 min
Jul 3, 9:34 AM CDT	Special Weather Statement	HUN	Lawrence	26 min
Jul 3, 10:26 AM CDT	Special Weather Statement	HUN	Marshall	34 min
Jul 3, 12:19 PM CDT	Special Weather Statement	HUN	Lawrence	26 min
Jul 3, 12:29 PM CDT	Severe Thunderstorm Warning	HUN	Lawrence, Limestone, Morgan	46 min
Jul 3, 12:38 PM CDT	Special Weather Statement	HUN	Franklin	67 min
Jul 3, 1:01 PM CDT	Severe Thunderstorm Warning	HUN	Colbert, Franklin	44 min
Jul 3, 1:12 PM CDT	Severe Thunderstorm Warning	HUN	Lawrence, Limestone, Morgan	48 min
Jul 3, 1:14 PM CDT	Special Weather Statement	HUN	Limestone	31 min
Jul 3, 1:29 PM CDT	Special Weather Statement	HUN	Morgan	31 min
Jul 3, 1:40 PM CDT	Severe Thunderstorm Warning	HUN	Limestone, Madison, Marshall, Morgan	50 min
Jul 3, 1:42 PM CDT	Special Weather Statement	HUN	Franklin	48 min
Jul 3, 1:47 PM CDT	Flash Flood Warning	HUN	Lawrence, Limestone, Madison, Morgan	2 hr
Jul 3, 1:57 PM CDT	Special Weather Statement	HUN	Lawrence, Morgan	48 min
Jul 3, 2:12 PM CDT	Severe Thunderstorm Warning	HUN	Cullman, Lawrence, Morgan	32 min
Jul 3, 2:19 PM CDT	Severe Thunderstorm Warning	HUN	Madison, Marshall, Morgan	41 min
Jul 3, 2:31 PM CDT	Special Weather Statement	HUN	Marshall	29 min
Jul 3, 2:47 PM CDT	Special Weather Statement	HUN	Cullman	43 min
Jul 3, 2:57 PM CDT	Special Weather Statement	HUN	Marshall	33 min
Jul 3, 3:04 PM CDT	Special Weather Statement	HUN	Franklin	41 min
Jul 3, 3:15 PM CDT	Severe Thunderstorm Warning	HUN	DeKalb, Marshall	45 min
Jul 3, 3:29 PM CDT	Special Weather Statement	HUN	Cullman	31 min
Jul 3, 3:32 PM CDT	Severe Thunderstorm Warning	HUN	Colbert, Franklin	28 min
Jul 3, 3:56 PM CDT	Special Weather Statement	HUN	DeKalb	34 min
Jul 3, 3:57 PM CDT	Special Weather Statement	HUN	Colbert	33 min
Jul 3, 4:43 PM CDT	Special Weather Statement	HUN	Lauderdale	47 min

Nearby

Flash Flood Warnings in Alabama, 2023 Every flash flood warning in 2023

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.