Hail on Date

Hail in Birmingham on Thursday, January 12, 2023

The Storm Prediction Center logged 5 hail reports in Birmingham on Thursday, January 12, 2023, between 11:15 am and 12:05 pm CST, in 1 of the metro's 5 counties. The largest was 1.75 inches at 4 NE Ballantrae (Shelby County) at 11:25 am. NOAA radar flagged 530 hail signatures inside the metro that day: 62 rated a 100% chance of hail and 58 with a maximum expected size of 1 inch or more.

5spotter hail reports in the metro
1.75 inlargest reported, 4 NE Ballantrae
530radar hail signatures inside the metro, 62 rated 100%
2.00 inlargest expected size on radar
Map of Birmingham counties with 530 radar hail signatures and 5 spotter hail reports on January 12, 2023 Jefferson Shelby St. Clair Blount Walker 1.75 in, 4 NE Ballantrae
Amber dots are radar hail signatures inside the metro's counties (every cell the algorithm rated, 10% to 100% chance of hail), darkest under 1 inch, brighter from 1 inch, brightest at 2 inches and up. Triangles are spotter reports; the filled one is the largest. County names are drawn at each county's center.

Where hail was reported

Reports came from 5 places in Shelby County, named as the National Weather Service described them.

Every hail report logged that day

Times are Central Standard Time. Sizes are in inches, as reported. The comment is the National Weather Service's text as published in the Storm Prediction Center's daily log.

TimeSizePlaceCountyNWS comment
11:15 am1.003 N MayleneShelbyQUARTER-SIZE HAIL REPORTED AT FOX VALLEY. (BMX)
11:21 am1.002 E AlabasterShelbyMULTIPLE REPORTS OF QUARTER-SIZE HAIL IN ALABASTER. (BMX)
11:25 am1.754 NE BallantraeShelbyMULTIPLE REPORTS OF GOLF BALL-SIZED HAIL IN THE CHELSEA AREA. (BMX)
11:27 am1.004 SW ChelseaShelbyPUBLIC REPORT OF QUARTER-SIZED HAIL. (BMX)
12:05 pm1.003 SE MontevalloShelbyCALERA PD REPORTED QUARTER-SIZED HAIL AT THE SHELBY/CHILTON COUNTY LINE. (BMX)

What NEXRAD radar recorded inside the metro

530 signatures from 6 radars fell inside the metro's counties on this local date, counting every cell the algorithm rated from a 10% to a 100% chance of hail; 62 were rated 100% and 1 had a maximum expected size of 2 inches or more.

RadarSignaturesRated 100%1 in or more2 in or moreLargest expectedFirstLast
KGWX143211712.00 in8:35 am12:41 pm
KMXX113111201.25 in8:38 am12:31 pm
KHTX10011901.25 in8:39 am12:22 pm
KBMX9671001.50 in8:39 am12:18 pm
KFFC7110801.25 in9:38 am12:17 pm
KEOX72201.25 in11:42 am12:21 pm

Each radar that scans a storm writes its own signature about every 4 to 6 minutes, so one storm produces many rows and overlapping radars count it more than once. The raw rows for this day are in NOAA's Severe Weather Data Inventory.

Check an address for January 12, 2023

See, free, how many hail signatures NOAA recorded within 1, 3 and 5 miles of one address that day and the nearest spotter report. The full report is $19.

Spotter reports come from the Storm Prediction Center's preliminary daily logs, grouped here by local calendar date (Central Standard Time) and by county: a report counts for Birmingham when its coordinates fall inside one of the metro's 5 counties (Jefferson, Shelby, St. Clair, Blount and Walker counties). Radar signatures are estimates from the Hail Detection Algorithm, not measured stones; they include every cell it rated, from a 10% to a 100% probability of hail. How these pages are built.