Alert archive / Alabama / Flash Flood Warnings in 2022

Flash Flood Warning 16, NWS Huntsville, AL

June 2, 2022Lauderdale County, Alabama

NWS Huntsville, AL issued this flash flood warning at Jun 2, 2022, 4:38 PM CDT for Lauderdale 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: Jun 2, 2022, 4:38 PM CDT (21:38 UTC)
Expired: Jun 2, 2022, 7:34 PM CDT
In force: 3 hr
Issued by: NWS Huntsville, AL
Area: Storm-based polygon
Flood severity: None

County Lauderdale County, AL

The radar

The Columbus AFB radar (KGWX), 128 km from the middle of the area, began a volume at 21:41 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, 9.6 hours before the alert went out and 208 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: 964 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 1168 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: -18 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 Jun 2, 3:43 PM CDT, 55 minutes earlier.

Area forecast discussion, Jun 2, 3:43 PM CDT, 55 minutes before

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Hazardous weather outlook, Jun 2, 3:57 PM CDT, 41 minutes before

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In the hours before

Special weather statement, Jun 2, 1:56 PM CDT, 2 hours 42 minutes before

Special Weather Statement
National Weather Service Huntsville AL
156 PM CDT Thu Jun 2 2022

ALZ008>010-021945-
Marshall AL-DeKalb AL-Jackson AL-
156 PM CDT Thu Jun 2 2022

...A strong thunderstorm will impact portions of southeastern
Jackson, east central Marshall and central DeKalb Counties through
245 PM CDT...

At 155 PM CDT, Doppler radar was tracking a strong thunderstorm near
Pisgah, or 7 miles east of Scottsboro, moving east at 25 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Scottsboro, Rainsville, Henagar, Sylvania, Hollywood, Powell,
Section, Ider, Pisgah and Valley Head.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3442 8613 3462 8600 3470 8599 3485 8558
      3484 8558 3458 8553
TIME...MOT...LOC 1855Z 259DEG 21KT 3468 8591

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

GH

Special weather statement, Jun 2, 2:00 PM CDT, 2 hours 38 minutes before

Special Weather Statement
National Weather Service Huntsville AL
200 PM CDT Thu Jun 2 2022

ALZ005>007-021945-
Madison AL-Morgan AL-Limestone AL-
200 PM CDT Thu Jun 2 2022

...A strong thunderstorm will impact portions of western Madison,
southeastern Limestone and central Morgan Counties through 245 PM
CDT...

At 200 PM CDT, Doppler radar was tracking a strong thunderstorm over
Decatur, moving east at 20 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Decatur, Redstone Arsenal, Priceville, Triana, Huntsville
International Airport, Somerville and Mooresville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3454 8703 3462 8699 3463 8668 3442 8681
TIME...MOT...LOC 1900Z 281DEG 15KT 3458 8696

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

GH

Special weather statement, Jun 2, 2:53 PM CDT, 1 hour 45 minutes before

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Special weather statement, Jun 2, 3:00 PM CDT, 1 hour 38 minutes before

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Special weather statement, Jun 2, 3:37 PM CDT, 1 hour 1 minute before

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Special weather statement, Jun 2, 4:23 PM CDT, 15 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
Jun 2, 12:01 PM CDT	Special Weather Statement	HUN	Madison	44 min
Jun 2, 12:54 PM CDT	Special Weather Statement	HUN	Marshall	51 min
Jun 2, 1:18 PM CDT	Special Weather Statement	HUN	Lawrence	42 min
Jun 2, 1:32 PM CDT	Special Weather Statement	HUN	Cullman	43 min
Jun 2, 1:56 PM CDT	Special Weather Statement	HUN	DeKalb	49 min
Jun 2, 2:00 PM CDT	Special Weather Statement	HUN	Morgan	45 min
Jun 2, 2:53 PM CDT	Special Weather Statement	HUN	Marshall	52 min
Jun 2, 3:00 PM CDT	Special Weather Statement	HUN	Madison	45 min
Jun 2, 4:23 PM CDT	Special Weather Statement	HUN	Colbert	37 min
Jun 2, 3:37 PM CDT	Special Weather Statement	HUN	Lincoln	38 min
Jun 2, 4:52 PM CDT	Special Weather Statement	HUN	Franklin	23 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.