Alert archive / Alabama / Tornado Warnings in 2020

Tornado Warning 10, NWS Birmingham, AL

February 6, 2020Jefferson County, St. Clair County, Shelby County, Alabama

NWS Birmingham, AL issued this tornado warning at Feb 6, 2020, 2:23 AM CST for Jefferson County, St. Clair County, Shelby County, Alabama. It was in force for 52 min. 3 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
Feb 6, 2020, 2:23 AM CST (08:23 UTC)
Expired
Feb 6, 2020, 3:15 AM CST
In force
52 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Jefferson County, AL, Shelby County, AL, St. Clair County, AL

The radar

The Birmingham radar (KBMX), 70 km from the middle of the area, began a volume at 08:28 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

TimeReportWhereRemark
Feb 6, 2:42 AM CSTTSTM WND DMG1 Ese Odenville, ALA FEW TREES WERE BLOWN DOWN AROUND ODENVILLE.
Feb 6, 2:43 AM CSTTSTM WND DMG1 Nw Chula Vista, ALA FEW TREES WERE BLOWN DOWN AROUND COOK SPRINGS.
Feb 6, 3:04 AM CSTTSTM WND DMG1 Nne Pell City, ALA FEW TREES WERE BLOWN DOWN AROUND PELL CITY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Feb 5, 11:48 PM CSTTornado WatchSPC8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 8.4 hours before the alert went out and 71 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 00:00Z on 2020-02-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 117 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2020-02-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 370 square meters per square second.1939587897117Sfc1 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
117 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
78 kt
0-1 km storm-relative helicity
370 m²/s²
0-3 km storm-relative helicity
402 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.4

Open this sounding in Storm Lab

The text

As transmitted.

567 
WFUS54 KBMX 060823
TORBMX
ALC073-115-117-060915-
/O.NEW.KBMX.TO.W.0010.200206T0823Z-200206T0915Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
223 AM CST Thu Feb 6 2020

The National Weather Service in Birmingham has issued a

* Tornado Warning for...
  Northeastern Shelby County in central Alabama...
  East central Jefferson County in central Alabama...
  Central St. Clair County in central Alabama...

* Until 315 AM CST.
    
* At 222 AM CST, a severe thunderstorm capable of producing a tornado
  was located over Brook Highland, or near Mountain Brook, moving
  northeast at 55 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Vestavia Hills, Mountain Brook, Trussville, Pell City, Irondale,
  Leeds, Moody, Springville, Odenville, Margaret, Argo, Ashville,
  Riverside, Ragland, Shops of Grand River, Bald Rock, Vandiver,
  Barber Motorsports Park, Branchville and Greystone.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3369 8614 3367 8615 3367 8616 3370 8618
      3369 8620 3368 8620 3366 8618 3364 8617
      3362 8617 3361 8620 3360 8618 3359 8619
      3360 8621 3358 8622 3337 8668 3345 8677
      3385 8629
TIME...MOT...LOC 0822Z 232DEG 47KT 3345 8665 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

17/KLAWS
3 follow-up statements
990 
WWUS54 KBMX 060832
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
232 AM CST Thu Feb 6 2020

ALC117-060841-
/O.CAN.KBMX.TO.W.0010.000000T0000Z-200206T0915Z/
Shelby AL-
232 AM CST Thu Feb 6 2020

...THE TORNADO WARNING FOR NORTHEASTERN SHELBY COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 500 AM CST for central
Alabama.

LAT...LON 3370 8614 3368 8616 3370 8618 3370 8620
      3368 8620 3366 8619 3351 8648 3355 8648
      3355 8652 3352 8652 3352 8656 3347 8661
      3347 8662 3348 8662 3356 8664 3385 8629
TIME...MOT...LOC 0831Z 226DEG 70KT 3360 8650 

$$

ALC073-115-060915-
/O.CON.KBMX.TO.W.0010.000000T0000Z-200206T0915Z/
Jefferson AL-St. Clair AL-
232 AM CST Thu Feb 6 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 AM CST FOR EAST
CENTRAL JEFFERSON AND CENTRAL ST. CLAIR COUNTIES...
    
At 231 AM CST, a severe thunderstorm capable of producing a tornado
was located over Moody, moving northeast at 60 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Trussville, Pell City, Leeds, Moody, Springville, Odenville,
Margaret, Argo, Ashville, Ragland, Shops of Grand River, Bald Rock,
Barber Motorsports Park, Branchville, Logan Martin Lake, Wattsville,
Chula Vista and Camp Winnataska.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3370 8614 3368 8616 3370 8618 3370 8620
      3368 8620 3366 8619 3351 8648 3355 8648
      3355 8652 3352 8652 3352 8656 3347 8661
      3347 8662 3348 8662 3356 8664 3385 8629
TIME...MOT...LOC 0831Z 226DEG 70KT 3360 8650 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

17/KLAWS
758 
WWUS54 KBMX 060837
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
237 AM CST Thu Feb 6 2020

ALC073-060846-
/O.CAN.KBMX.TO.W.0010.000000T0000Z-200206T0915Z/
Jefferson AL-
237 AM CST Thu Feb 6 2020

...THE TORNADO WARNING FOR EAST CENTRAL JEFFERSON COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3370 8614 3368 8616 3370 8618 3370 8620
      3368 8620 3366 8619 3354 8644 3357 8646
      3359 8651 3359 8653 3362 8655 3362 8654
      3365 8653 3385 8629
TIME...MOT...LOC 0836Z 227DEG 55KT 3364 8643 

$$

ALC115-060915-
/O.CON.KBMX.TO.W.0010.000000T0000Z-200206T0915Z/
St. Clair AL-
237 AM CST Thu Feb 6 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 AM CST FOR CENTRAL
ST. CLAIR COUNTY...
    
At 236 AM CST, a severe thunderstorm capable of producing a tornado
was located over Branchville, or near Odenville, moving northeast at
60 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Moody, Springville, Odenville, Margaret, Argo, Ashville, Ragland,
Bald Rock, Branchville, Logan Martin Lake, Wattsville and Chula
Vista.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3370 8614 3368 8616 3370 8618 3370 8620
      3368 8620 3366 8619 3354 8644 3357 8646
      3359 8651 3359 8653 3362 8655 3362 8654
      3365 8653 3385 8629
TIME...MOT...LOC 0836Z 227DEG 55KT 3364 8643 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

17/KLAWS
732 
WWUS54 KBMX 060846 RRA
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
246 AM CST Thu Feb 6 2020

ALC115-060915-
/O.CON.KBMX.TO.W.0010.000000T0000Z-200206T0915Z/
St. Clair AL-
246 AM CST Thu Feb 6 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 AM CST FOR CENTRAL
ST. CLAIR COUNTY...
    
At 246 AM CST, a severe thunderstorm capable of producing a tornado
was located near Odenville, moving northeast at 60 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Odenville, Ashville, Ragland, Bald Rock, Branchville, Logan Martin
Lake, Wattsville and Chula Vista.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3370 8614 3368 8616 3370 8618 3370 8620
      3368 8620 3366 8619 3357 8638 3357 8642
      3361 8645 3385 8629
TIME...MOT...LOC 0846Z 228DEG 56KT 3364 8634 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

17/KLAWS

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 5, 6:05 PM CSTAreal Flood AdvisoryBMXMarion3 hr
Feb 5, 6:10 PM CSTSpecial Weather StatementBMXLamar50 min
Feb 5, 6:26 PM CSTSpecial Weather StatementBMXMarion49 min
Feb 5, 6:30 PM CSTAreal Flood AdvisoryBMXLamar3 hr
Feb 5, 7:02 PM CSTSpecial Weather StatementBMXPickens28 min
Feb 5, 7:09 PM CSTSpecial Weather StatementBMXWalker51 min
Feb 5, 7:24 PM CSTSpecial Weather StatementBMXFayette36 min
Feb 5, 10:25 PM CSTSpecial Weather StatementBMXHale35 min
Feb 5, 10:27 PM CSTAreal Flood AdvisoryBMXPickens5 hr
Feb 5, 10:30 PM CSTSpecial Weather StatementBMXGreene30 min
Feb 5, 10:37 PM CSTAreal Flood AdvisoryBMXFayette, Jefferson, Tuscaloosa, Walker4 hr
Feb 5, 10:57 PM CSTSpecial Weather StatementBMXTuscaloosa33 min
Feb 5, 11:21 PM CSTAreal Flood AdvisoryBMXGreene, Sumter5 hr
Feb 5, 11:44 PM CSTSevere Thunderstorm WarningBMXSumter46 min
Feb 5, 11:51 PM CSTSpecial Weather StatementBMXTuscaloosa24 min
Feb 5, 11:58 PM CSTAreal Flood WarningBMXGreene, Sumter, Tuscaloosa6 hr
Feb 6, 12:05 AM CSTAreal Flood AdvisoryBMXBlount, Etowah, St. Clair5 hr
Feb 6, 12:08 AM CSTSpecial Weather StatementBMXJefferson52 min
Feb 6, 12:14 AM CSTSpecial Weather StatementBMXGreene46 min
Feb 6, 12:27 AM CSTSpecial Weather StatementBMXHale33 min
Feb 6, 12:46 AM CSTSpecial Weather StatementBMXEtowah, St. Clair44 min
Feb 6, 12:47 AM CSTAreal Flood WarningBMXBlount, Jefferson, Walker6 hr
Feb 6, 12:47 AM CSTSevere Thunderstorm WarningBMXBibb, Hale, Perry42 min
Feb 6, 12:54 AM CSTSpecial Weather StatementBMXCalhoun, Cherokee, Cleburne96 min
Feb 6, 1:19 AM CSTSevere Thunderstorm WarningBMXMarengo, Sumter56 min
Feb 6, 1:33 AM CSTSpecial Weather StatementBMXJefferson, Shelby57 min
Feb 6, 1:56 AM CSTSevere Thunderstorm WarningBMXGreene, Hale64 min
Feb 6, 1:57 AM CSTAreal Flood WarningBMXCherokee, Etowah, St. Clair9 hr
Feb 6, 1:59 AM CSTTornado WarningBMXShelby20 min
Feb 6, 2:35 AM CSTTornado WarningBMXBibb, Hale, Perry40 min
Feb 6, 2:50 AM CSTTornado WarningBMXDallas25 min
Feb 6, 2:53 AM CSTTornado WarningBMXCalhoun, Etowah, St. Clair39 min
Feb 6, 2:58 AM CSTSevere Thunderstorm WarningBMXGreene, Hale, Marengo, Sumter47 min
Feb 6, 3:12 AM CSTSevere Thunderstorm WarningBMXBibb, Jefferson, Shelby51 min
Feb 6, 3:22 AM CSTTornado WarningBMXCherokee26 min
Feb 6, 3:31 AM CSTSevere Thunderstorm WarningBMXBibb, Perry42 min
Feb 6, 3:35 AM CSTFlash Flood WarningBMXJefferson, St. Clair, Shelby3 hr
Feb 6, 4:06 AM CSTRiver Flood WarningBMXJefferson17 hr
Feb 6, 4:12 AM CSTSpecial Weather StatementBMXShelby48 min
Feb 6, 4:41 AM CSTTornado WarningBMXClay, Cleburne, Randolph12 min
Feb 6, 5:38 AM CSTSevere Thunderstorm WarningBMXClay, Coosa, Talladega32 min
Feb 6, 6:19 AM CSTSpecial Weather StatementBMXClay, Cleburne26 min
Feb 6, 6:32 AM CSTFlash Flood WarningBMXCalhoun, Chilton, Clay, Cleburne, Coosa, Randolph and 3 more3 hr
Feb 6, 6:39 AM CSTRiver Flood WarningBMXBibb, Jefferson, Shelby37 hr
Feb 6, 6:52 AM CSTAreal Flood WarningBMXBlount, Jefferson, Shelby6 hr
Feb 6, 7:05 AM CSTSpecial Weather StatementBMXCoosa, Elmore, Tallapoosa25 min
Feb 6, 7:31 AM CSTSpecial Weather StatementBMXTallapoosa44 min
Feb 6, 7:43 AM CSTRiver Flood WarningBMXGreene, Hale, Marengo, Tuscaloosa44 hr
Feb 6, 7:43 AM CSTRiver Flood WarningBMXGreene, Hale, Marengo, Sumter, Tuscaloosa60 hr
Feb 6, 7:46 AM CSTRiver Flood WarningBMXJefferson, Tuscaloosa, Walker3 days
Feb 6, 7:50 AM CSTRiver Flood WarningBMXGreene, Hale, Marengo, Sumter19 days
Feb 6, 7:53 AM CSTRiver Flood WarningBMXSumter10 days
Feb 6, 8:14 AM CSTSpecial Weather StatementBMXChambers, Randolph, Tallapoosa46 min
Feb 6, 8:32 AM CSTSpecial Weather StatementBMXMontgomery43 min
Feb 6, 8:41 AM CSTAreal Flood AdvisoryBMXChambers, Clay, Coosa, Elmore, Lowndes, Montgomery and 2 more3 hr
Feb 6, 8:49 AM CSTRiver Flood WarningBMXBibb, Dallas, Perry48 hr
Feb 6, 9:27 AM CSTSevere Thunderstorm WarningBMXLowndes, Montgomery40 min
Feb 6, 9:28 AM CSTAreal Flood WarningBMXCalhoun, Chilton, Clay, Cleburne, Coosa, Randolph and 4 more3 hr
Feb 6, 9:54 AM CSTAreal Flood AdvisoryBMXBullock, Lee, Macon, Montgomery, Russell3 hr
Feb 6, 9:58 AM CSTSpecial Weather StatementBMXMacon47 min
Feb 6, 10:06 AM CSTSevere Thunderstorm WarningBMXBullock, Macon33 min
Feb 6, 10:27 AM CSTSevere Thunderstorm WarningBMXLee, Russell34 min
Feb 6, 1:41 PM CSTRiver Flood WarningBMXChambers, Elmore, Macon, Randolph, Tallapoosa19 hr
Feb 6, 1:46 PM CSTRiver Flood WarningBMXDallas, Perry10 days
Feb 6, 1:46 PM CSTRiver Flood WarningBMXDallas, Perry43 hr

Nearby

Tornado Warnings in Alabama, 2020Every tornado warning in 2020Tornadoes in 2020

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.