Alert archive / Alabama / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 39, NWS Huntsville, AL

March 3, 2023DeKalb County, Jackson County, Marshall County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at Mar 3, 2023, 12:14 PM CST for DeKalb County, Jackson County, Marshall County, Alabama. It was in force for 61 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: Mar 3, 2023, 12:14 PM CST (18:14 UTC)
Expired: Mar 3, 2023, 1:15 PM CST
In force: 61 min
Issued by: NWS Huntsville, AL
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

Counties DeKalb County, AL, Jackson County, AL, Marshall County, AL

The radar

The Northeast Alabama radar (KHTX), 44 km from the middle of the area, began a volume at 18:18 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 3, 10:34 AM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 6.2 hours before the alert went out and 166 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: 4 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 652 m above ground
0-6 km bulk shear: 83 kt
0-1 km storm-relative helicity: 717 m²/s²
0-3 km storm-relative helicity: 862 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 severe thunderstorm 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 severe thunderstorm warning went out at Mar 3, 11:00 AM CST, 1 hour 14 minutes earlier.

Area forecast discussion, Mar 3, 11:00 AM CST, 1 hour 14 minutes before

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In the hours before

Local storm report, Mar 3, 10:36 AM CST, 1 hour 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1036 AM CST FRI MAR 3 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1030 AM     TSTM WND DMG     1 S RUSSELLVILLE        34.50N 87.73W
03/03/2023                   FRANKLIN           AL   EMERGENCY MNGR

            NUMEROUS REPORTS OF TREES AND POWER LINES
            DOWN NEAR RUSSELLVILLE.

&&

TPB

Local storm report, Mar 3, 10:50 AM CST, 1 hour 24 minutes before

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Local storm report, Mar 3, 11:05 AM CST, 1 hour 9 minutes before

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Local storm report, Mar 3, 11:08 AM CST, 1 hour 6 minutes before

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Local storm report, Mar 3, 11:21 AM CST, 53 minutes before

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Local storm report, Mar 3, 11:30 AM CST, 44 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 3, 9:27 AM CST	Severe Thunderstorm Warning	HUN	Colbert, Franklin, Lauderdale, Lawrence	63 min
Mar 3, 10:29 AM CST	Severe Thunderstorm Warning	HUN	Colbert, Cullman, Franklin, Lauderdale, Lawrence, Limestone and 1 more	61 min
Mar 3, 11:09 AM CST	Severe Thunderstorm Warning Considerable damage threat	HUN	Limestone, Madison, Morgan	21 min
Mar 3, 11:22 AM CST	Severe Thunderstorm Warning Destructive damage threat	HUN	Cullman, DeKalb, Jackson, Limestone, Madison, Marshall and 1 more	53 min
Mar 3, 11:25 AM CST	Severe Thunderstorm Warning Considerable damage threat	HUN	Jackson, Limestone, Madison	65 min
Mar 3, 11:54 AM CST	Tornado Warning	HUN	Jackson, Madison	21 min
Mar 3, 12:10 PM CST	Tornado Warning	HUN	Jackson	11 min
Mar 3, 12:18 PM CST	Severe Thunderstorm Warning Destructive damage threat	HUN	Jackson	46 min
Mar 3, 12:20 PM CST	Tornado Warning	HUN	Jackson	10 min
Mar 3, 12:37 PM CST	Tornado Warning	HUN	DeKalb, Jackson	21 min
Mar 3, 1:14 PM CST	Severe Thunderstorm Warning Considerable damage threat	HUN	DeKalb	11 min
Mar 3, 1:53 PM CST	River Flood Warning	HUN	Colbert, Lauderdale	8 hr
Mar 3, 12:35 AM CST	Special Weather Statement	HUN	Franklin, Lincoln, Moore	25 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2023 Every severe thunderstorm 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.