Alert archive / Alabama / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 13, NWS Birmingham, AL

March 19, 2018Marion County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 19, 2018, 6:09 PM CDT for Marion County, Alabama. It was in force for 45 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 19, 2018, 6:09 PM CDT (23:09 UTC)
Expired: Mar 19, 2018, 6:54 PM CDT
In force: 45 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

County Marion County, AL

The radar

The Columbus AFB radar (KGWX), 57 km from the middle of the area, began a volume at 23:08 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 watch it was issued in

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

Issued	Product	Office	Lasted
Mar 19, 3:28 PM CDT	Tornado Watch PDS	SPC	9 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 11.2 hours before the alert went out and 154 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 563 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 505 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted.

554 
WUUS54 KBMX 192309
SVRBMX
ALC093-200015-
/O.NEW.KBMX.SV.W.0013.180319T2309Z-180320T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
609 PM CDT MON MAR 19 2018

The National Weather Service in Birmingham has issued a

* Severe Thunderstorm Warning for...
  Marion County in northwestern Alabama...

* Until 715 PM CDT

* At 609 PM CDT, severe thunderstorms were located along a line
  extending from near Phil Campbell to near Tremont, moving east at
  50 mph.

  HAZARD...Golf ball size hail and 60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees. 

* Locations impacted include...
  Hamilton, Hackleburg, Brinn, Weston, Lake Buttahatchee, Bear Creek,
  Tessner, Shottsville, Pearces Mill, Rankin Fite Airport, Upper Bear
  Creek Reservoir, Bexar and Pigeye.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 1100 PM CDT for northwestern
Alabama.

LAT...LON 3431 8764 3408 8764 3413 8820 3432 8818
TIME...MOT...LOC 2309Z 269DEG 44KT 3433 8767 3419 8820 

HAIL...1.75IN
WIND...60MPH
 
$$

87/GRANTHAM

3 follow-up statements

442 
WWUS54 KBMX 192326
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
626 PM CDT MON MAR 19 2018

ALC093-200015-
/O.CON.KBMX.SV.W.0013.000000T0000Z-180320T0015Z/
Marion AL-
626 PM CDT MON MAR 19 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR NORTHERN MARION COUNTY...

At 626 PM CDT, severe thunderstorms were located along a line
extending from 7 miles east of Phil Campbell to near Hamilton, moving
east at 50 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...
Hamilton, Hackleburg, Weston, Lake Buttahatchee, Brinn, Bear Creek,
Tessner, Pigeye, Pearces Mill, Rankin Fite Airport and Upper Bear
Creek Reservoir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 1100 PM CDT for northwestern
Alabama.

LAT...LON 3412 8812 3432 8801 3431 8764 3408 8764
TIME...MOT...LOC 2326Z 273DEG 45KT 3436 8758 3420 8797 

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

87/GRANTHAM

664 
WWUS54 KBMX 192342
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
642 PM CDT MON MAR 19 2018

ALC093-200015-
/O.CON.KBMX.SV.W.0013.000000T0000Z-180320T0015Z/
Marion AL-
642 PM CDT MON MAR 19 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR NORTHEASTERN MARION COUNTY...

At 642 PM CDT, a severe thunderstorm was located near Brinn, or 8
miles west of Haleyville, moving east at 45 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...
Hamilton, Hackleburg, Lake Buttahatchee, Brinn, Bear Creek, Tessner,
Pearces Mill, Rankin Fite Airport and Upper Bear Creek Reservoir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 1100 PM CDT for northwestern
Alabama.

LAT...LON 3411 8801 3431 8782 3431 8764 3408 8764
TIME...MOT...LOC 2342Z 270DEG 38KT 3421 8776 

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

87/GRANTHAM

085 
WWUS54 KBMX 192354
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
654 PM CDT MON MAR 19 2018

ALC093-200004-
/O.CAN.KBMX.SV.W.0013.000000T0000Z-180320T0015Z/
Marion AL-
654 PM CDT MON MAR 19 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MARION COUNTY IS
CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

A tornado watch remains in effect until 1100 PM CDT for northwestern
Alabama.

LAT...LON 3411 8801 3431 8782 3431 8764 3408 8764
TIME...MOT...LOC 2352Z 269DEG 44KT 3421 8758 

$$

87/GRANTHAM

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 19, 5:07 AM CDT	Dense Fog Advisory	BMX	Autauga, Barbour, Bibb, Bullock, Chambers, Chilton and 22 more	4 hr
Mar 19, 1:22 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	36 min
Mar 19, 2:21 PM CDT	Special Weather Statement	BMX	Talladega	39 min
Mar 19, 2:54 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cleburne, Talladega	81 min
Mar 19, 3:21 PM CDT	Severe Thunderstorm Warning	BMX	Clay, Randolph	54 min
Mar 19, 3:29 PM CDT	Special Weather Statement	BMX	Russell	31 min
Mar 19, 6:34 PM CDT	Severe Thunderstorm Warning	BMX	Winston	20 min
Mar 19, 6:56 PM CDT	Severe Thunderstorm Warning	BMX	Winston	64 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2018 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.