Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 4, NWS Birmingham, AL

March 16, 2021Bullock County, Pike County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 16, 2021, 2:24 PM CDT for Bullock County, Pike County, Alabama. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 16, 2021, 2:24 PM CDT (19:24 UTC)
Expired
Mar 16, 2021, 3:00 PM CDT
In force
36 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Bullock County, AL, Pike County, AL

The radar

The Maxwell AFB radar (KMXX), 63 km from the middle of the area, began a volume at 19:25 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.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.4 hours before the alert went out and 162 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 2021-03-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 181 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 2021-03-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 194 square meters per square second.19395878Sfc1 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
181 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
623 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
194 m²/s²
0-3 km storm-relative helicity
248 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.8

Open this sounding in Storm Lab

The text

As transmitted.

924 
WUUS54 KBMX 161924
SVRBMX
ALC011-109-162000-
/O.NEW.KBMX.SV.W.0004.210316T1924Z-210316T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
224 PM CDT Tue Mar 16 2021

The National Weather Service in Birmingham has issued a

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

* Until 300 PM CDT.

* At 224 PM CDT, a severe thunderstorm was located near Troy
  Municipal Airport, or 8 miles north of Troy, moving east at 55 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Troy, Midway, Pickett, Aberfoil, Beans Crossroads, Linwood, Troy
  Municipal Airport, Tanyard, Orion, Perote, Josie, China Grove,
  Sandfield and Three Notch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3185 8606 3197 8605 3197 8600 3204 8599
      3216 8543 3202 8543 3200 8559 3187 8567
TIME...MOT...LOC 1924Z 263DEG 46KT 3194 8598 

HAIL...0.75IN
WIND...60MPH
 
$$

15
2 follow-up statements
807 
WWUS54 KBMX 161942
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
242 PM CDT Tue Mar 16 2021

ALC011-109-162000-
/O.CON.KBMX.SV.W.0004.000000T0000Z-210316T2000Z/
Pike AL-Bullock AL-
242 PM CDT Tue Mar 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM CDT
FOR NORTH CENTRAL PIKE AND SOUTHERN BULLOCK COUNTIES...

At 242 PM CDT, a severe thunderstorm was located near Linwood, or 11
miles northeast of Troy, moving east at 35 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...
Midway, Pickett, Linwood, Aberfoil, Beans Crossroads, Tanyard, China
Grove, Sandfield, Three Notch and Perote.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3187 8589 3196 8595 3204 8598 3216 8543
      3202 8543 3200 8559 3189 8566
TIME...MOT...LOC 1942Z 260DEG 31KT 3196 8589 

HAIL...1.00IN
WIND...60MPH
 
$$

15
712 
WWUS54 KBMX 161958
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
258 PM CDT Tue Mar 16 2021

ALC011-109-162007-
/O.EXP.KBMX.SV.W.0004.000000T0000Z-210316T2000Z/
Pike AL-Bullock AL-
258 PM CDT Tue Mar 16 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL PIKE AND
SOUTHERN BULLOCK COUNTIES WILL EXPIRE AT 300 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

LAT...LON 3187 8589 3196 8595 3204 8598 3216 8543
      3202 8543 3200 8559 3189 8566
TIME...MOT...LOC 1957Z 263DEG 46KT 3198 8567 

$$

15

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 15, 9:32 PM CDTSevere Thunderstorm WarningBMXEtowah19 min
Mar 16, 1:18 AM CDTSpecial Weather StatementBMXMarion57 min
Mar 16, 1:59 AM CDTSpecial Weather StatementBMXMarion31 min
Mar 16, 2:20 AM CDTSpecial Weather StatementBMXMarengo40 min
Mar 16, 3:15 AM CDTSpecial Weather StatementBMXMarengo30 min
Mar 16, 3:22 AM CDTSevere Thunderstorm WarningBMXMarengo38 min
Mar 16, 3:32 AM CDTAreal Flood AdvisoryBMXMarengo3 hr
Mar 16, 3:41 AM CDTTornado WarningBMXMarengo34 min
Mar 16, 6:09 AM CDTSpecial Weather StatementBMXDallas51 min
Mar 16, 9:44 AM CDTAreal Flood AdvisoryBMXMarengo3 hr
Mar 16, 10:06 AM CDTRiver Flood WarningBMXGreene, Hale, Marengo7 days
Mar 16, 10:58 AM CDTAreal Flood AdvisoryBMXDallas, Perry3 hr
Mar 16, 12:06 PM CDTAreal Flood AdvisoryBMXDallas3 hr
Mar 16, 12:58 PM CDTSpecial Weather StatementBMXLowndes47 min
Mar 16, 1:24 PM CDTSpecial Weather StatementBMXMontgomery36 min
Mar 16, 2:00 PM CDTSpecial Weather StatementBMXBullock45 min
Mar 16, 3:00 PM CDTSpecial Weather StatementBMXBarbour45 min
Mar 16, 3:41 PM CDTSpecial Weather StatementBMXBarbour49 min
Mar 16, 4:46 PM CDTAreal Flood AdvisoryBMXBarbour, Bullock, Pike3 hr
Mar 16, 5:33 PM CDTSpecial Weather StatementBMXGreene27 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2021Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.