Alert archive / Alabama / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 47, NWS Birmingham, AL

March 9, 2017Marion County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 9, 2017, 5:50 PM CST for Marion County, Alabama. It was in force for 55 min. 5 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
Mar 9, 2017, 5:50 PM CST (23:50 UTC)
Expired
Mar 9, 2017, 6:45 PM CST
In force
55 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

County Marion County, AL

The radar

The Columbus AFB radar (KGWX), 49 km from the middle of the area, began a volume at 23:52 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
Mar 9, 6:00 PM CSTHAIL 12 Wnw Bexar, ALTRAVELER REPORTED HAIL COVERING THE GROUND AND IT LOOKED LIKE SNOW COVER. THE LARGEST PIECE WAS ESTIMATED AT QUARTER SIZE, BUT MOST WAS SMALLER.
Mar 9, 6:24 PM CSTHAIL 0.881 Ese Weston, ALREPORTED VIA SPOTTERNETWORK.
Mar 9, 6:24 PM CSTHAIL 0.88Weston, ALREPORTED VIA SPOTTERNETWORK.
Mar 9, 6:29 PM CSTHAIL 0.881 N Hamilton, ALDIME- TO NICKLE-SIZED HAIL REPORTED IN HAMILTON.
Mar 9, 6:35 PM CSTHAIL 13 E Hamilton, AL.

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, 11.8 hours before the alert went out and 150 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 2017-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 142 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2732 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
142 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

805 
WUUS54 KBMX 092350
SVRBMX
ALC093-100045-
/O.NEW.KBMX.SV.W.0047.170309T2350Z-170310T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
550 PM CST THU MAR 9 2017

The National Weather Service in Birmingham has issued a

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

* Until 645 PM CST

* At 550 PM CST, a severe thunderstorm was located over Tremont, or 9
  miles southeast of Fulton, moving east at 30 mph.

  HAZARD...60 mph wind gusts and half dollar 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, Brilliant, Brinn, Weston, Lake Buttahatchee,
  Bear Creek, Tessner, Shottsville, Pearces Mill, Rankin Fite
  Airport, Upper Bear Creek Reservoir, Byrd, Bexar, Pigeye, Marion
  County Public Lake, Piney Grove and Pikeville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3431 8764 3400 8764 3403 8799 3405 8799
      3406 8821 3432 8818
TIME...MOT...LOC 2350Z 277DEG 27KT 3420 8826 

HAIL...1.25IN
WIND...60MPH
 
$$

89^GSatterwhite
4 follow-up statements
750 
WWUS54 KBMX 092354
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
554 PM CST THU MAR 9 2017

ALC093-100045-
/O.CON.KBMX.SV.W.0047.000000T0000Z-170310T0045Z/
Marion AL-
554 PM CST THU MAR 9 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CST
FOR CENTRAL MARION COUNTY...

At 553 PM CST, a severe thunderstorm was located near Tremont, or 11
miles southeast of Fulton, moving east at 30 mph.

HAZARD...60 mph wind gusts and half dollar size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Hamilton, Weston, Lake Buttahatchee, Brinn, Bear Creek, Tessner,
Bexar, Shottsville, Pearces Mill, Rankin Fite Airport and Piney
Grove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3426 8764 3403 8764 3407 8797 3410 8820
      3427 8818
TIME...MOT...LOC 2353Z 277DEG 27KT 3420 8822 

HAIL...1.25IN
WIND...60MPH
 
$$

89^GSatterwhite
224 
WWUS54 KBMX 100006
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
606 PM CST THU MAR 9 2017

ALC093-100045-
/O.CON.KBMX.SV.W.0047.000000T0000Z-170310T0045Z/
Marion AL-
606 PM CST THU MAR 9 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CST
FOR CENTRAL MARION COUNTY...

At 606 PM CST, a severe thunderstorm was located near Weston, or 7
miles northwest of Hamilton, moving east at 30 mph.

HAZARD...60 mph wind gusts and half dollar size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Hamilton, Weston, Lake Buttahatchee, Brinn, Bexar, Pearces Mill,
Rankin Fite Airport and Piney Grove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3403 8764 3408 8796 3412 8820 3418 8819
      3425 8818 3423 8764
TIME...MOT...LOC 0006Z 277DEG 27KT 3419 8810 

HAIL...1.25IN
WIND...60MPH
 
$$

89^GSatterwhite
964 
WWUS54 KBMX 100020
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
620 PM CST THU MAR 9 2017

ALC093-100045-
/O.CON.KBMX.SV.W.0047.000000T0000Z-170310T0045Z/
Marion AL-
620 PM CST THU MAR 9 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CST
FOR CENTRAL MARION COUNTY...

At 620 PM CST, a severe thunderstorm was located over Hamilton,
moving east at 30 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, Weston, Lake Buttahatchee, Brinn, Rankin Fite Airport,
Pearces Mill and Piney Grove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3406 8764 3410 8800 3414 8808 3418 8807
      3422 8803 3419 8764
TIME...MOT...LOC 0020Z 277DEG 27KT 3417 8797 

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

89^GSatterwhite
282 
WWUS54 KBMX 100031
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
631 PM CST THU MAR 9 2017

ALC093-100045-
/O.CON.KBMX.SV.W.0047.000000T0000Z-170310T0045Z/
Marion AL-
631 PM CST THU MAR 9 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CST
FOR EAST CENTRAL MARION COUNTY...

At 630 PM CST, a severe thunderstorm was located near Brinn, or near
Hamilton, moving east at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail. This storm has 
         produced hail from nickle to quarter size.

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Hamilton, Lake Buttahatchee, Brinn, Rankin Fite Airport, Pearces Mill
and Piney Grove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3406 8764 3410 8799 3413 8803 3420 8801
      3419 8764
TIME...MOT...LOC 0030Z 277DEG 27KT 3417 8788 

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

89^GSatterwhite

Nearby

Severe Thunderstorm Warnings in Alabama, 2017Every severe thunderstorm warning in 2017

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.