Alert archive / Alabama / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 327, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Aug 20, 2002, 7:12 PM CDT for Montgomery County, Pickens County, Alabama. It was in force for 48 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 20, 2002, 7:12 PM CDT (00:12 UTC)
- Expired
- Aug 20, 2002, 8:00 PM CDT
- In force
- 48 min
- Issued by
- NWS Birmingham, AL
- Area
- Counties, with a storm outline in the text
Counties Montgomery County, AL, Pickens County, AL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 20, 7:38 PM CDT | Hail 0.75 | Montgomery, AL | Dime size hail was reported at the intersection of Interstate 65 and US 31. |
| Aug 20, 7:41 PM CDT | Hail 0.88 | Montgomery, AL | Nickel size hail was observed south of Montgomery along Interstate 65. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 0.2 hours before the alert went out and 107 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.
- Mixed-layer CAPE
- 3452 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 1210 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
484 WUUS54 KBMX 210012 SVRBHM ALC101-210100- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 712 PM CDT TUE AUG 20 2002 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MONTGOMERY COUNTY IN SOUTH CENTRAL ALABAMA * UNTIL 800 PM CDT * AT 707 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER MONTGOMERY...MOVING WEST AT 20 MPH. STRONG DAMAGING WIND...AND LARGE HAIL ARE LIKELY WITH THIS STORM. TAKE COVER IN A STURDY SHELTER UNTIL THE STORM PASSES. CALL 1-800-856-0758 TO REPORT SEVERE WEATHER. LAT...LON 3235 8639 3222 8624 3231 8599 3244 8617
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 7:04 PM CDT | Severe Thunderstorm Warning | BMX | Chambers | 41 min |
| Aug 20, 7:13 PM CDT | Severe Thunderstorm Warning | BMX | Shelby | 47 min |
| Aug 20, 7:18 PM CDT | Severe Thunderstorm Warning | BMX | Coosa | 57 min |
| Aug 20, 7:28 PM CDT | Flash Flood Warning | BMX | Montgomery | 92 min |
| Aug 20, 7:31 PM CDT | Severe Thunderstorm Warning | BMX | Chilton | 59 min |
| Aug 20, 7:43 PM CDT | Severe Thunderstorm Warning | BMX | Lowndes | 62 min |
| Aug 20, 8:11 PM CDT | Severe Thunderstorm Warning | BMX | Bibb | 34 min |
| Aug 20, 9:06 PM CDT | Severe Thunderstorm Warning | BMX | Dallas | 39 min |
| Aug 20, 9:23 PM CDT | Severe Thunderstorm Warning | BMX | Barbour | 52 min |
| Aug 20, 9:34 PM CDT | Severe Thunderstorm Warning | BMX | Hale | 26 min |
| Aug 20, 9:38 PM CDT | Severe Thunderstorm Warning | BMX | Marengo | 52 min |
| Aug 20, 9:59 PM CDT | Severe Thunderstorm Warning | BMX | Sumter | 46 min |
| Aug 20, 10:30 PM CDT | Severe Thunderstorm Warning | BMX | Bullock | 45 min |
| Aug 20, 10:49 PM CDT | Severe Thunderstorm Warning | BMX | Pike | 41 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2002Every severe thunderstorm warning in 2002
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.