Alert archive / Alabama / Flash Flood Warnings in 2022

Flash Flood Warning 33, NWS Huntsville, AL

August 7, 2022Cullman County, Alabama

NWS Huntsville, AL issued this flash flood warning at Aug 7, 2022, 2:57 PM CDT for Cullman County, Alabama. 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: Aug 7, 2022, 2:57 PM CDT (19:57 UTC)
Expired: Aug 7, 2022, 5:36 PM CDT
In force: 3 hr
Issued by: NWS Huntsville, AL
Area: Storm-based polygon
Flood severity: None

County Cullman County, AL

The radar

The Birmingham radar (KBMX), 107 km from the middle of the area, began a volume at 19:58 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

Birmingham, AL (KBMX), launched 12:00Z, 8.0 hours before the alert went out and 106 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: 1170 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 891 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 11 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 Aug 7, 12:38 PM CDT, 2 hours 19 minutes earlier.

Area forecast discussion, Aug 7, 12:38 PM CDT, 2 hours 19 minutes before

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Hazardous weather outlook, Aug 7, 9:45 AM CDT, 5 hours 12 minutes before

Hazardous Weather Outlook
National Weather Service Huntsville AL
945 AM CDT Sun Aug 7 2022

ALZ001>010-016-TNZ076-096-097-081445-
Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan-
Marshall-Jackson-DeKalb-Cullman-Moore-Lincoln-Franklin TN-
945 AM CDT Sun Aug 7 2022

This Hazardous Weather Outlook is for north central Alabama,
northeast Alabama, northwest Alabama and southern middle Tennessee.

.DAY ONE...Today and tonight.

Scattered thunderstorms are possible mainly this afternoon and
evening. Heavy rain, frequent lightning, gusty winds to around 55
mph, and small hail will be possible with the strongest storms.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Scattered to possibly numerous thunderstorms are forecast each day
through Thursday, with storm coverage highest during the afternoon
and early evening hours. Due to the slow-moving nature of the
thunderstorms, locally heavy rainfall will be the primary risk. A
few stronger storms could produce wind gusts to 50 mph and frequent
lighting.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Aug 7, 1:32 PM CDT, 1 hour 25 minutes before

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Special weather statement, Aug 7, 1:45 PM CDT, 1 hour 12 minutes before

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Special weather statement, Aug 7, 1:58 PM CDT, 59 minutes before

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Special weather statement, Aug 7, 2:09 PM CDT, 48 minutes before

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Special weather statement, Aug 7, 2:22 PM CDT, 35 minutes before

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Local storm report, Aug 7, 2:35 PM CDT, 22 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
Aug 6, 7:31 PM CDT	Special Weather Statement	HUN	DeKalb	44 min
Aug 7, 11:15 AM CDT	Special Weather Statement	HUN	Franklin	30 min
Aug 7, 11:37 AM CDT	Special Weather Statement	HUN	Franklin	23 min
Aug 7, 12:07 PM CDT	Special Weather Statement	HUN	Franklin	23 min
Aug 7, 12:17 PM CDT	Special Weather Statement	HUN	Lawrence	28 min
Aug 7, 12:25 PM CDT	Special Weather Statement	HUN	Franklin	35 min
Aug 7, 12:44 PM CDT	Special Weather Statement	HUN	Lawrence	46 min
Aug 7, 12:47 PM CDT	Special Weather Statement	HUN	Colbert	28 min
Aug 7, 1:04 PM CDT	Special Weather Statement	HUN	Lawrence	26 min
Aug 7, 1:14 PM CDT	Special Weather Statement	HUN	Colbert	31 min
Aug 7, 1:32 PM CDT	Special Weather Statement	HUN	Limestone	28 min
Aug 7, 1:45 PM CDT	Special Weather Statement	HUN	Cullman	45 min
Aug 7, 1:58 PM CDT	Special Weather Statement	HUN	Morgan	32 min
Aug 7, 2:09 PM CDT	Special Weather Statement	HUN	Cullman	36 min
Aug 7, 2:15 PM CDT	Flash Flood Warning	HUN	Cullman	3 hr
Aug 7, 2:22 PM CDT	Special Weather Statement	HUN	Morgan	23 min
Aug 7, 2:33 PM CDT	Severe Thunderstorm Warning	HUN	Cullman	27 min
Aug 7, 3:01 PM CDT	Special Weather Statement	HUN	Morgan	29 min
Aug 7, 3:14 PM CDT	Severe Thunderstorm Warning	HUN	Marshall	31 min
Aug 7, 5:36 PM CDT	Special Weather Statement	HUN	Jackson	39 min
Aug 7, 4:10 PM CDT	Special Weather Statement	HUN	Lincoln	50 min

Nearby

Flash Flood Warnings in Alabama, 2022 Every flash flood warning in 2022

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.