Alert archive / Alabama / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 113, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Aug 7, 2018, 4:30 PM CDT for Jefferson County, Alabama. It was in force for 30 min. 4 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 7, 2018, 4:30 PM CDT (21:30 UTC)
- Expired
- Aug 7, 2018, 5:00 PM CDT
- In force
- 30 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Jefferson County, AL
The radar
The Birmingham radar (KBMX), 49 km from the middle of the area, began a volume at 21:30 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 7, 4:45 PM CDT | TSTM WND DMG | 1 Ne Center Point, AL | TREES DOWN IN THE 500 BLOCK OF 11TH ST. TIME ESTIMATED FROM RADAR. |
| Aug 7, 4:45 PM CDT | TSTM WND DMG | 2 Sse Center Point, AL | CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 2 SSE CENTER POINT. TREES DOWN IN THE 1100 BLOCK OF BREWSTER RD. TIME ESTIMATED FROM RADAR. |
| Aug 7, 4:45 PM CDT | TSTM WND DMG | 2 Sse Center Point, AL | TREES DOWN IN THE 100 BLOCK OF BREWSTER RD. TIME ESTIMATED FROM RADAR. |
| Aug 7, 4:55 PM CDT | HAIL 0.5 | Trussville, AL | PEA TO DIME SIZE HAIL REPORTED IN TRUSSVILLE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 9.5 hours before the alert went out and 49 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
- 1097 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 1046 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- -26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
811
WUUS54 KBMX 072130
SVRBMX
ALC073-072200-
/O.NEW.KBMX.SV.W.0113.180807T2130Z-180807T2200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
430 PM CDT TUE AUG 7 2018
The National Weather Service in Birmingham has issued a
* Severe Thunderstorm Warning for...
Northeastern Jefferson County in central Alabama...
* Until 500 PM CDT.
* At 430 PM CDT, severe thunderstorms were located along a line
extending from near Fultondale to near Alton, and are nearly
stationary.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Northern Birmingham, Vestavia Hills, Mountain Brook, Trussville,
Gardendale, Irondale, Leeds, Moody, Fultondale, Center Point,
Pinson, Tarrant, Brookside, Ketona Lakes, Chalkville, Shops of
Grand River, Kingston, Grayson Valley, Barber Motorsports Park and
Birmingham Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3363 8654 3362 8654 3362 8655 3356 8655
3356 8654 3355 8654 3348 8662 3358 8693
3372 8682
TIME...MOT...LOC 2130Z 206DEG 4KT 3361 8684 3356 8666
HAIL...1.00IN
WIND...60MPH
$$
32/Davis1 follow-up statement
216
WWUS54 KBMX 072147
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
447 PM CDT TUE AUG 7 2018
ALC073-072200-
/O.CON.KBMX.SV.W.0113.000000T0000Z-180807T2200Z/
Jefferson AL-
447 PM CDT TUE AUG 7 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR EAST CENTRAL JEFFERSON COUNTY...
At 446 PM CDT, severe thunderstorms were located along a line
extending from Birmingham to Leeds, moving east at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Northeastern Birmingham, Trussville, Gardendale, Irondale, Leeds,
Moody, Fultondale, Center Point, Pinson, Tarrant, Ketona Lakes,
Chalkville, Shops of Grand River, Alton, Grayson Valley, Barber
Motorsports Park, Birmingham Airport, Birmingham Race Course, Ruffner
Mountain and Danville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3363 8654 3362 8654 3362 8655 3356 8655
3356 8654 3355 8654 3349 8661 3357 8684
3369 8673
TIME...MOT...LOC 2146Z 258DEG 7KT 3361 8673 3353 8658
HAIL...1.00IN
WIND...60MPH
$$
32/DavisThe office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 8:44 PM CDT | Special Weather Statement | BMX | Barbour | 31 min |
| Aug 7, 3:18 AM CDT | Heat Advisory | BMX | Autauga, Barbour, Bullock, Dallas, Elmore, Greene and 10 more | 16 hr |
| Aug 7, 1:21 PM CDT | Special Weather Statement | BMX | Montgomery | 24 min |
| Aug 7, 1:26 PM CDT | Special Weather Statement | BMX | Elmore | 34 min |
| Aug 7, 1:37 PM CDT | Special Weather Statement | BMX | Walker | 23 min |
| Aug 7, 1:44 PM CDT | Special Weather Statement | BMX | Montgomery | 46 min |
| Aug 7, 2:38 PM CDT | Special Weather Statement | BMX | Fayette | 37 min |
| Aug 7, 2:44 PM CDT | Special Weather Statement | BMX | Chambers | 31 min |
| Aug 7, 2:53 PM CDT | Special Weather Statement | BMX | Coosa | 37 min |
| Aug 7, 2:54 PM CDT | Special Weather Statement | BMX | Tuscaloosa | 36 min |
| Aug 7, 3:08 PM CDT | Special Weather Statement | BMX | Bibb | 37 min |
| Aug 7, 3:13 PM CDT | Special Weather Statement | BMX | Chambers | 32 min |
| Aug 7, 3:23 PM CDT | Special Weather Statement | BMX | Chilton | 37 min |
| Aug 7, 3:30 PM CDT | Special Weather Statement | BMX | Fayette | 30 min |
| Aug 7, 3:44 PM CDT | Special Weather Statement | BMX | Marion | 31 min |
| Aug 7, 3:58 PM CDT | Special Weather Statement | BMX | Walker | 32 min |
| Aug 7, 4:17 PM CDT | Special Weather Statement | BMX | Jefferson | 28 min |
| Aug 7, 4:20 PM CDT | Special Weather Statement | BMX | Walker | 25 min |
| Aug 7, 4:21 PM CDT | Special Weather Statement | BMX | Marion | 24 min |
| Aug 7, 4:23 PM CDT | Special Weather Statement | BMX | Jefferson | 37 min |
| Aug 7, 4:37 PM CDT | Special Weather Statement | BMX | Hale | 38 min |
| Aug 7, 4:49 PM CDT | Areal Flood Advisory | BMX | Jefferson | 3 hr |
| Aug 7, 4:57 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson, St. Clair | 33 min |
| Aug 7, 5:04 PM CDT | Flash Flood Warning | BMX | Jefferson | 3 hr |
| Aug 7, 5:11 PM CDT | Special Weather Statement | BMX | Hale | 34 min |
| Aug 7, 6:20 PM CDT | Special Weather Statement | BMX | Etowah | 25 min |
| Aug 7, 6:39 PM CDT | Special Weather Statement | BMX | Etowah | 36 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2018Every severe thunderstorm warning in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.