Alert archive / Alabama / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 21, NWS Birmingham, AL

January 11, 2020Bullock County, Macon County, Pike County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jan 11, 2020, 2:40 PM CST for Bullock County, Macon County, Pike County, Alabama. It was in force for 80 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
Jan 11, 2020, 2:40 PM CST (20:40 UTC)
Expired
Jan 11, 2020, 4:00 PM CST
In force
80 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Bullock County, AL, Macon County, AL, Pike County, AL

The radar

The Maxwell AFB radar (KMXX), 47 km from the middle of the area, began a volume at 20:38 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
Jan 11, 3:10 PM CSTTSTM WND DMG1 Nne Fort Davis, ALCORRECTION: SEVERAL TREES DOWN BLOCKING ROADS.
Jan 11, 3:10 PM CSTTSTM WND DMG1 Nne Fort Davis, ALSEVERAL TREES DOWN BLOCKING ROADS.
Jan 11, 3:17 PM CSTTSTM WND GST 521 Sw Troy Muni Airport, ALASOS STATION KTOI TROY.
Jan 11, 3:26 PM CSTTSTM WND DMGTroy, ALNUMEROUS REPORTS OF TREES AND POWER LINES DOWN IN AND THROUGHOUT THE CITY OF TROY. ONE TREE FELL ON A HOME AND CAUSED STRUCTURAL DAMAGE ON FRANKLIN DR. SPORADIC TREE DAMAGE AND POWER LINES DOWN THROUGHOUT THE COUNTY.

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
Jan 11, 12:42 PM CSTTornado WatchSPC7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 8.7 hours before the alert went out and 146 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 2020-01-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 53 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 12:00Z on 2020-01-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 364 square meters per square second.1939587897Sfc1 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
53 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
729 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
364 m²/s²
0-3 km storm-relative helicity
587 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

902 
WUUS54 KBMX 112040
SVRBMX
ALC011-087-109-112200-
/O.NEW.KBMX.SV.W.0021.200111T2040Z-200111T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
240 PM CST Sat Jan 11 2020

The National Weather Service in Birmingham has issued a

* Severe Thunderstorm Warning for...
  Pike County in southeastern Alabama...
  Bullock County in southeastern Alabama...
  Macon County in southeastern Alabama...

* Until 400 PM CST.

* At 240 PM CST, severe thunderstorms were located along a line
  extending from near Mount Meigs to Brantley, moving northeast at 55
  mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Troy, Tuskegee, Union Springs, Brundidge, Notasulga, Midway,
  Goshen, Milstead, Shorter, Banks, Franklin, Pickett, Lake Tuskegee,
  Beans Crossroads, Guerryton, Shopton, Tuskegee National Forest,
  Liverpool, Liberty City and Hardaway.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CST for south central,
southeastern and east central Alabama.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3179 8615 3179 8620 3197 8619 3197 8600
      3225 8600 3228 8592 3242 8602 3248 8585
      3249 8588 3249 8580 3258 8580 3260 8571
      3250 8544 3202 8543 3199 8559 3186 8568
      3178 8566 3163 8573 3162 8618
TIME...MOT...LOC 2040Z 247DEG 47KT 3240 8611 3157 8624 

HAIL...<.75IN
WIND...60MPH
 
$$

87/GRANTHAM
3 follow-up statements
029 
WWUS54 KBMX 112110
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
310 PM CST Sat Jan 11 2020

ALC011-087-109-112200-
/O.CON.KBMX.SV.W.0021.000000T0000Z-200111T2200Z/
Pike AL-Bullock AL-Macon AL-
310 PM CST Sat Jan 11 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CST
FOR PIKE...BULLOCK AND MACON COUNTIES...

At 310 PM CST, severe thunderstorms were located along a line
extending from near Liberty City to Union Springs to near Goshen,
moving east at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Troy, Tuskegee, Union Springs, Brundidge, Notasulga, Midway, Goshen,
Milstead, Shorter, Banks, Franklin, Pickett, Lake Tuskegee, Beans
Crossroads, Guerryton, Tuskegee National Forest, Liverpool, Liberty
City, Hardaway and Troy Municipal Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CST for south central,
southeastern and east central Alabama.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3179 8616 3197 8601 3197 8600 3199 8600
      3214 8588 3244 8596 3248 8585 3249 8588
      3249 8580 3258 8580 3260 8571 3250 8544
      3202 8543 3199 8559 3186 8568 3178 8566
      3163 8573 3162 8618 3179 8615
TIME...MOT...LOC 2110Z 250DEG 47KT 3255 8578 3214 8574 3167 8606 

HAIL...<.75IN
WIND...60MPH
 
$$

87/GRANTHAM
665 
WWUS54 KBMX 112126
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
326 PM CST Sat Jan 11 2020

ALC011-087-109-112200-
/O.CON.KBMX.SV.W.0021.000000T0000Z-200111T2200Z/
Pike AL-Bullock AL-Macon AL-
326 PM CST Sat Jan 11 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CST
FOR PIKE...BULLOCK AND EASTERN MACON COUNTIES...

At 326 PM CST, severe thunderstorms were located along a line
extending from near Auburn University to Guerryton to 9 miles
southwest of Antioch, moving northeast at 55 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Troy, Tuskegee, Union Springs, Brundidge, Notasulga, Midway, Goshen,
Banks, Pickett, Aberfoil, Lake Tuskegee, Beans Crossroads, Guerryton,
Linwood, Tuskegee National Forest, Davisville, Antioch, Troy
Municipal Airport, Society Hill and Troy University.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CST for southeastern
and east central Alabama.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3180 8615 3225 8565 3259 8574 3260 8571
      3250 8544 3202 8543 3199 8559 3186 8568
      3178 8566 3163 8573 3162 8618 3179 8615
      3179 8616
TIME...MOT...LOC 2126Z 246DEG 47KT 3263 8557 3222 8553 3166 8599 

HAIL...<.75IN
WIND...70MPH
 
$$

87/GRANTHAM
678 
WWUS54 KBMX 112146
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
346 PM CST Sat Jan 11 2020

ALC087-112156-
/O.CAN.KBMX.SV.W.0021.000000T0000Z-200111T2200Z/
Macon AL-
346 PM CST Sat Jan 11 2020

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MACON COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 PM CST for southeastern
Alabama.

LAT...LON 3223 8560 3223 8544 3202 8543 3199 8559
      3186 8568 3178 8566 3174 8570 3163 8573
      3162 8604
TIME...MOT...LOC 2146Z 238DEG 61KT 3281 8522 3240 8518 3167 8589 

$$

ALC011-109-112200-
/O.CON.KBMX.SV.W.0021.000000T0000Z-200111T2200Z/
Pike AL-Bullock AL-
346 PM CST Sat Jan 11 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CST
FOR EASTERN PIKE AND EASTERN BULLOCK COUNTIES...

At 346 PM CST, severe thunderstorms were located along a line
extending from Huguley to near Russell County Sports Complex to near
Brundidge, moving northeast at 70 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Troy, Brundidge, Midway, Banks, Pickett, Aberfoil, Antioch,
Guerryton, Tanyard, Hamilton Crossroads, Monticello, Perote, Josie,
Sandfield, Tarentum, Brundidge Municipal Airport and Three Notch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CST for southeastern
Alabama.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3223 8560 3223 8544 3202 8543 3199 8559
      3186 8568 3178 8566 3174 8570 3163 8573
      3162 8604
TIME...MOT...LOC 2146Z 238DEG 61KT 3281 8522 3240 8518 3167 8589 

HAIL...<.75IN
WIND...60MPH
 
$$

87/GRANTHAM

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 10, 7:50 PM CSTRiver Flood WarningBMXGreene, Hale, Marengo, Pickens, Sumter8 days
Jan 11, 7:39 AM CSTSevere Thunderstorm WarningBMXLamar, Marion66 min
Jan 11, 9:40 AM CSTSpecial Weather StatementBMXMarion65 min
Jan 11, 10:07 AM CSTAreal Flood AdvisoryBMXMarion3 hr
Jan 11, 10:36 AM CSTSevere Thunderstorm WarningBMXGreene, Pickens, Sumter54 min
Jan 11, 10:47 AM CSTSpecial Weather StatementBMXFayette, Lamar, Marion43 min
Jan 11, 11:00 AM CSTTornado WarningBMXGreene, Sumter30 min
Jan 11, 11:01 AM CSTTornado WarningBMXPickens42 min
Jan 11, 11:27 AM CSTSevere Thunderstorm WarningBMXFayette, Greene, Hale, Lamar, Marengo, Pickens and 2 more63 min
Jan 11, 11:33 AM CSTTornado WarningBMXGreene, Pickens, Tuscaloosa27 min
Jan 11, 11:50 AM CSTTornado WarningBMXFayette16 min
Jan 11, 12:01 PM CSTSevere Thunderstorm WarningBMXBibb, Fayette, Jefferson, Shelby, Tuscaloosa, Walker59 min
Jan 11, 12:04 PM CSTSpecial Weather StatementBMXWinston56 min
Jan 11, 12:08 PM CSTTornado WarningBMXJefferson, Tuscaloosa24 min
Jan 11, 12:09 PM CSTSevere Thunderstorm WarningBMXBibb, Perry66 min
Jan 11, 12:24 PM CSTSevere Thunderstorm WarningBMXWinston36 min
Jan 11, 12:35 PM CSTAreal Flood AdvisoryBMXBibb, Fayette, Greene, Hale, Jefferson, Marion and 4 more115 min
Jan 11, 12:38 PM CSTSevere Thunderstorm WarningBMXBlount, Jefferson, St. Clair67 min
Jan 11, 12:38 PM CSTTornado WarningBMXJefferson18 min
Jan 11, 12:47 PM CSTSevere Thunderstorm WarningBMXDallas, Marengo58 min
Jan 11, 12:52 PM CSTSevere Thunderstorm WarningBMXChilton, Jefferson, St. Clair, Shelby68 min
Jan 11, 1:09 PM CSTSevere Thunderstorm WarningBMXEtowah81 min
Jan 11, 1:19 PM CSTAreal Flood AdvisoryBMXBibb, Blount, Chilton, Etowah, Jefferson, St. Clair and 1 more116 min
Jan 11, 1:27 PM CSTSevere Thunderstorm WarningBMXAutauga, Chilton, Lowndes65 min
Jan 11, 1:29 PM CSTAreal Flood AdvisoryBMXAutauga, Calhoun, Cleburne, Coosa, Elmore, Etowah and 3 more2 hr
Jan 11, 1:40 PM CSTSevere Thunderstorm WarningBMXCalhoun, Coosa, Talladega80 min
Jan 11, 1:41 PM CSTSevere Thunderstorm WarningBMXCherokee79 min
Jan 11, 1:47 PM CSTSevere Thunderstorm WarningBMXSt. Clair28 min
Jan 11, 1:50 PM CSTSevere Thunderstorm WarningBMXDallas12 min
Jan 11, 2:00 PM CSTAreal Flood AdvisoryBMXCherokee2 hr
Jan 11, 2:02 PM CSTSevere Thunderstorm WarningBMXSt. Clair, Shelby14 min
Jan 11, 2:09 PM CSTSevere Thunderstorm WarningBMXElmore, Montgomery62 min
Jan 11, 2:11 PM CSTSevere Thunderstorm WarningBMXClay61 min
Jan 11, 2:18 PM CSTAreal Flood AdvisoryBMXClay, Cleburne, Tallapoosa117 min
Jan 11, 2:21 PM CSTAreal Flood AdvisoryBMXMontgomery114 min
Jan 11, 2:23 PM CSTSevere Thunderstorm WarningBMXCleburne63 min
Jan 11, 2:27 PM CSTSevere Thunderstorm WarningBMXTallapoosa66 min
Jan 11, 2:44 PM CSTAreal Flood AdvisoryBMXRandolph2 hr
Jan 11, 2:48 PM CSTSevere Thunderstorm WarningBMXRandolph72 min
Jan 11, 2:53 PM CSTAreal Flood AdvisoryBMXBullock, Macon, Pike2 hr
Jan 11, 3:07 PM CSTAreal Flood AdvisoryBMXChambers, Lee113 min
Jan 11, 3:07 PM CSTSevere Thunderstorm WarningBMXChambers, Lee, Russell73 min
Jan 11, 3:27 PM CSTAreal Flood AdvisoryBMXBarbour, Russell2 hr
Jan 11, 3:27 PM CSTTornado WarningBMXChambers, Tallapoosa18 min
Jan 11, 3:42 PM CSTSevere Thunderstorm WarningBMXBarbour, Russell78 min
Jan 11, 4:37 PM CSTTornado WarningBMXBarbour23 min
Jan 11, 5:24 PM CSTRiver Flood WarningBMXGreene, Hale, Marengo, Sumter8 days
Jan 11, 5:24 PM CSTRiver Flood WarningBMXGreene, Hale, Marengo, Sumter10 days

Nearby

Severe Thunderstorm Warnings in Alabama, 2020Every severe thunderstorm warning 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.