Alert archive / Alabama / Tornado Watches in 2022

Tornado Watch 63

March 22, 202220 counties in Alabama

The Storm Prediction Center issued this tornado watch at Mar 22, 2022, 4:08 PM CDT for 20 counties in Alabama. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Mar 22, 2022, 4:08 PM CDT (21:08 UTC)
Expired
Mar 22, 2022, 10:47 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
60 kt

Counties Autauga County, AL, Baldwin County, AL, Bibb County, AL, Blount County, AL, Butler County, AL, Chilton County, AL, Conecuh County, AL, Cullman County, AL, Dallas County, AL, Escambia County, AL, Jefferson County, AL, Limestone County, AL, Lowndes County, AL, Mobile County, AL, Monroe County, AL, Morgan County, AL, Perry County, AL, Shelby County, AL, St. Clair County, AL, Wilcox County, AL

The radar

The Birmingham radar (KBMX), 18 km from the middle of the area, began a volume at 21:07 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
50%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
60%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
20%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Mar 22, 5:09 PM CDTSevere Thunderstorm WarningHUNColbert, Lauderdale, Lawrence, Limestone, Morgan51 min
Mar 22, 5:54 PM CDTSevere Thunderstorm WarningHUNCullman, Lawrence, Limestone, Morgan39 min
Mar 22, 7:11 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile, Washington49 min
Mar 22, 7:31 PM CDTTornado WarningMOBBaldwin, Clarke, Monroe10 min
Mar 22, 8:43 PM CDTTornado WarningBMXHale, Perry19 min
Mar 22, 9:04 PM CDTTornado WarningBMXBibb, Shelby19 min
Mar 22, 9:27 PM CDTSevere Thunderstorm WarningBMXShelby48 min
Mar 22, 9:28 PM CDTTornado WarningMOBBaldwin26 min
Mar 22, 9:33 PM CDTFlash Flood WarningBMXJefferson, Walker87 min
Mar 22, 9:47 PM CDTFlash Flood WarningBMXShelby88 min
Mar 22, 10:26 PM CDTSevere Thunderstorm WarningMOBBaldwin49 min
Mar 22, 10:31 PM CDTTornado WarningMOBBaldwin44 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.1 hours before the alert went out and 18 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-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2022-03-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2022-03-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 291 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1169 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
291 m²/s²
0-3 km storm-relative helicity
353 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 22, 11:57 AM CDTMesoscale DiscussionSPCColbert, Cullman, Franklin, Lauderdale, Lawrence, Limestone and 3 more2 hr
Mar 22, 12:42 PM CDTTornado WatchSPCChoctaw, Clarke, Colbert, Fayette, Franklin, Greene and 12 more6 hr
Mar 22, 2:56 PM CDTMesoscale DiscussionSPCBibb, Choctaw, Clarke, Fayette, Franklin, Greene and 12 more2 hr
Mar 22, 4:55 PM CDTMesoscale DiscussionSPCJackson95 min
Mar 22, 5:33 PM CDTMesoscale DiscussionSPCChoctaw, Clarke, Marengo, Mobile, Sumter, Washington87 min
Mar 22, 5:57 PM CDTMesoscale DiscussionSPCBibb, Blount, Chilton, Cullman, Greene, Hale and 8 more93 min

Nearby

Tornado Watches in Alabama, 2022Every tornado watch 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.