Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 29, NWS Huntsville, AL

March 2, 2012Jackson County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at Mar 2, 2012, 5:14 PM CST for Jackson County, Alabama. It was in force for 46 min. 2 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 2, 2012, 5:14 PM CST (23:14 UTC)
Expired: Mar 2, 2012, 6:00 PM CST
In force: 46 min
Issued by: NWS Huntsville, AL
Area: Storm-based polygon

County Jackson County, AL

The radar

The Northeast Alabama radar (KHTX), 28 km from the middle of the area, began a volume at 23:17 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

Time	Report	Where	Remark
Mar 2, 5:49 PM CST	HAIL 1	E Stevenson, AL	QUARTER SIZE HAIL WAS REPORTED.
Mar 2, 5:52 PM CST	HAIL 1	Skyline, AL	DIME TO QUARTER SIZE HAIL WAS REPORTED.

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.

Issued	Product	Office	Lasted
Mar 2, 1:20 PM CST	Tornado Watch	SPC	9 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.2 hours before the alert went out and 165 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: 1667 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 523 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 175 m²/s²
0-3 km storm-relative helicity: 169 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

918 
WUUS54 KHUN 022314
SVRHUN
ALC071-030000-
/O.NEW.KHUN.SV.W.0029.120302T2314Z-120303T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
514 PM CST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JACKSON COUNTY IN NORTHEAST ALABAMA...

* UNTIL 600 PM CST

* AT 514 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  TRENTON...OR ABOUT 11 MILES WEST OF SCOTTSBORO...AND MOVING EAST AT
  50 MPH. THIS STORM HAS A HISTORY OF PRODUCING HAIL TO THE SIZE OF  
  QUARTERS ACROSS MADISON COUNTY.

* LOCATIONS IMPACTED INCLUDE...
  LARKINSVILLE...SKYLINE...
  HOLLYWOOD...
  FACKLER...MARTINTOWN...
  STEVENSON...
  FABIUS...
  FLAT ROCK...BRIDGEPORT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CST FRIDAY EVENING FOR
NORTHERN ALABAMA AND CENTRAL TENNESSEE.

&&

LAT...LON 3483 8563 3480 8563 3474 8568 3474 8569
      3473 8571 3464 8631 3475 8634 3478 8634
      3498 8560 3486 8558
TIME...MOT...LOC 2314Z 254DEG 41KT 3473 8620

$$

BCC

2 follow-up statements

885 
WWUS54 KHUN 022329
SVSHUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
529 PM CST FRI MAR 2 2012

ALC071-030000-
/O.CON.KHUN.SV.W.0029.000000T0000Z-120303T0000Z/
JACKSON AL-
529 PM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CST
FOR NORTHEASTERN JACKSON COUNTY...

AT 529 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR HOLLYWOOD...OR ABOUT 7 MILES NORTH OF 
SCOTTSBORO...MOVING EAST AT 45 MPH. THIS STORM HAD A HISTORY OF 
PRODUCING QUARTER SIZE HAIL IN MADISON COUNTY.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MARTINTOWN...FACKLER...STEVENSON...FABIUS...FLAT ROCK...BRIDGEPORT
AND HIGDON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CST FRIDAY EVENING FOR
NORTHERN ALABAMA AND CENTRAL TENNESSEE.

&&

LAT...LON 3483 8563 3480 8563 3474 8569 3471 8613
      3481 8616 3498 8560 3486 8558
TIME...MOT...LOC 2329Z 254DEG 41KT 3478 8600

$$

BCC

988 
WWUS54 KHUN 022345
SVSHUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
545 PM CST FRI MAR 2 2012

ALC071-030000-
/O.CON.KHUN.SV.W.0029.000000T0000Z-120303T0000Z/
JACKSON AL-
545 PM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CST
FOR NORTHEASTERN JACKSON COUNTY...

AT 543 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR FACKLER...OR ABOUT 13 MILES SOUTHWEST OF BRIDGEPORT...
MOVING NORTHEAST AT 40 MPH.

AT 512 PM CST...THE PUBLIC REPORTED HAIL TO THE SIZE OF QUARTERS 8 
MILES NORTHEAST OF WOODVILLE. THIS STORM HAS A HISTORY OF PRODUCING 
QUARTER SIZE HAIL ACROSS MADISON COUNTY AS WELL.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
STEVENSON...FABIUS AND HIGDON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CST FRIDAY EVENING FOR
NORTHERN ALABAMA AND CENTRAL TENNESSEE.

&&

LAT...LON 3486 8559 3483 8563 3477 8598 3485 8602
      3498 8560 3486 8558
TIME...MOT...LOC 2343Z 243DEG 35KT 3485 8589

$$

BCC

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 2, 4:44 AM CST	Wind Advisory	HUN	Colbert, Cullman, DeKalb, Franklin, Jackson, Lauderdale and 5 more	11 hr
Mar 2, 7:21 AM CST	Special Weather Statement	HUN	Lawrence	39 min
Mar 2, 8:09 AM CST	Special Weather Statement	HUN	Lawrence, Limestone	51 min
Mar 2, 8:51 AM CST	Severe Thunderstorm Warning	HUN	Lauderdale, Lawrence, Limestone, Madison	24 min
Mar 2, 9:12 AM CST	Severe Thunderstorm Warning	HUN	Limestone, Madison	33 min
Mar 2, 9:15 AM CST	Special Weather Statement	HUN	Lawrence	30 min
Mar 2, 9:18 AM CST	Tornado Warning	HUN	Limestone, Madison	27 min
Mar 2, 9:35 AM CST	Tornado Warning	HUN	Limestone, Madison	25 min
Mar 2, 9:41 AM CST	Tornado Warning	HUN	Jackson, Madison	34 min
Mar 2, 9:59 AM CST	Tornado Warning Emergency	HUN	Jackson, Madison	31 min
Mar 2, 10:10 AM CST	Tornado Warning	HUN	Jackson	35 min
Mar 2, 10:24 AM CST	Tornado Warning	HUN	Jackson, Madison	36 min
Mar 2, 1:01 PM CST	Special Weather Statement	HUN	Lawrence, Limestone	44 min
Mar 2, 1:26 PM CST	Special Weather Statement	HUN	Franklin	34 min
Mar 2, 1:30 PM CST	Severe Thunderstorm Warning	HUN	Lauderdale, Lawrence, Limestone	30 min
Mar 2, 1:31 PM CST	Severe Thunderstorm Warning	HUN	Franklin, Lawrence	29 min
Mar 2, 1:55 PM CST	Severe Thunderstorm Warning	HUN	Limestone, Madison	50 min
Mar 2, 2:00 PM CST	Tornado Warning	HUN	Limestone	30 min
Mar 2, 2:06 PM CST	Severe Thunderstorm Warning	HUN	Colbert, Lauderdale	24 min
Mar 2, 2:29 PM CST	Severe Thunderstorm Warning	HUN	Colbert, Lauderdale	31 min
Mar 2, 2:41 PM CST	Tornado Warning	HUN	Colbert, Lauderdale, Lawrence	34 min
Mar 2, 3:07 PM CST	Tornado Warning	HUN	Limestone	23 min
Mar 2, 3:16 PM CST	Severe Thunderstorm Warning	HUN	Colbert, Lawrence	29 min
Mar 2, 3:26 PM CST	Tornado Warning	HUN	Limestone, Madison	34 min
Mar 2, 3:27 PM CST	Tornado Warning	HUN	Lawrence	33 min
Mar 2, 3:44 PM CST	Severe Thunderstorm Warning	HUN	Limestone	31 min
Mar 2, 3:58 PM CST	Tornado Warning	HUN	Jackson, Madison	14 min
Mar 2, 4:00 PM CST	Severe Thunderstorm Warning	HUN	Lawrence, Morgan	30 min
Mar 2, 4:10 PM CST	Severe Thunderstorm Warning	HUN	Jackson, Madison	50 min
Mar 2, 4:15 PM CST	Severe Thunderstorm Warning	HUN	Cullman, Morgan	30 min
Mar 2, 4:21 PM CST	Severe Thunderstorm Warning	HUN	Madison	24 min
Mar 2, 4:33 PM CST	Tornado Warning	HUN	Cullman, Morgan	27 min
Mar 2, 4:51 PM CST	Severe Thunderstorm Warning	HUN	Jackson, Madison	24 min
Mar 2, 4:55 PM CST	Tornado Warning	HUN	Morgan	15 min
Mar 2, 5:49 PM CST	Severe Thunderstorm Warning	HUN	Cullman	26 min
Mar 2, 5:57 PM CST	Severe Thunderstorm Warning	HUN	Jackson	18 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2012 Every severe thunderstorm warning in 2012

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.