Alert archive / Alabama / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 102, NWS Birmingham, AL

July 2, 2014Lamar County, Marion County, Pickens County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 2, 2014, 5:42 PM CDT for Lamar County, Marion County, Pickens County, Alabama. It was in force for 48 min. 3 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: Jul 2, 2014, 5:42 PM CDT (22:42 UTC)
Expired: Jul 2, 2014, 6:30 PM CDT
In force: 48 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Lamar County, AL, Marion County, AL, Pickens County, AL

The radar

The Columbus AFB radar (KGWX), 62 km from the middle of the area, began a volume at 22:42 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
Jul 2, 6:04 PM CDT	TSTM WND DMG	Detroit, AL	TREES DOWN ACROSS NORTHERN LAMAR COUNTY IN AND AROUND DETROIT.
Jul 2, 6:20 PM CDT	TSTM WND DMG	Mcshan, AL	APPROX TWO DOZEN TREES DOWN ACROSS THE COUNTY AS THE LINE OF STORMS MOVED THROUGH.
Jul 2, 6:25 PM CDT	TSTM WND DMG	5 W Millport, AL	TREES DOWN ALONG HIGHWAY 96 WEST OF MILLPORT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 3 storm reports to this severe thunderstorm warning; the first came 22 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 10.7 hours before the alert went out and 124 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: 697 J/kg
Mixed-layer CIN: -198 J/kg
Mixed-layer LCL: 1414 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -16 m²/s²
0-3 km storm-relative helicity: 8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

261 
WUUS54 KBMX 022242
SVRBMX
ALC075-093-107-022330-
/O.NEW.KBMX.SV.W.0102.140702T2242Z-140702T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
542 PM CDT WED JUL 2 2014

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LAMAR COUNTY IN WEST CENTRAL ALABAMA...
  WEST CENTRAL MARION COUNTY IN NORTHWEST ALABAMA...
  PICKENS COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 630 PM CDT

* AT 542 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A LINE OF
  SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED
  ALONG A LINE EXTENDING FROM SMITHVILLE TO 9 MILES SOUTHWEST OF
  BEVILL LOCK AND DAM...AND MOVING NORTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PICKENSVILLE...ALICEVILLE...SULLIGENT...VERNON...CARROLLTON...
  MILLPORT...REFORM AND BEVILL LOCK AND DAM.

THIS INCLUDES...
US 78 EXIT NUMBERS 11 THROUGH 16...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN BIRMINGHAM.

&&

TO REPORT SEVERE WEATHER...
CALL 1-800-856-0758 OR TWEET YOUR REPORT USING HASHTAG ALWX

LAT...LON 3413 8820 3413 8795 3311 8795 3308 8797
      3307 8802 3304 8804 3305 8807 3301 8817
      3299 8835
TIME...MOT...LOC 2242Z 243DEG 48KT 3405 8836 3317 8838

$$

75

2 follow-up statements

916 
WWUS54 KBMX 022312
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
612 PM CDT WED JUL 2 2014

ALC075-093-107-022330-
/O.CON.KBMX.SV.W.0102.000000T0000Z-140702T2330Z/
LAMAR AL-MARION AL-PICKENS AL-
612 PM CDT WED JUL 2 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR PICKENS...
SOUTHWESTERN MARION AND LAMAR COUNTIES UNTIL 630 PM CDT...

AT 612 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM DETROIT TO GARDEN...MOVING
NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  VERNON...CARROLLTON...MILLPORT...REFORM...LAMAR COUNTY AIRPORT...
  CREWS...BENEVOLA...BEAVERTON...BLOOMING GROVE AND KENNEDY.

THIS INCLUDES...
US 78 EXIT NUMBERS 11 THROUGH 16...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN BIRMINGHAM.

&&

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3413 8820 3413 8795 3311 8795 3308 8797
      3307 8802 3304 8804 3305 8807 3301 8817
      3299 8835
TIME...MOT...LOC 2312Z 243DEG 48KT 3408 8814 3320 8817

$$

75

576 
WWUS54 KBMX 022327
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
627 PM CDT WED JUL 2 2014

ALC075-093-107-022337-
/O.EXP.KBMX.SV.W.0102.000000T0000Z-140702T2330Z/
LAMAR AL-MARION AL-PICKENS AL-
627 PM CDT WED JUL 2 2014

...THE SEVERE THUNDERSTORM WARNING FOR PICKENS...SOUTHWESTERN MARION
AND LAMAR COUNTIES WILL EXPIRE AT 630 PM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR 
PROPERTY. GUSTY WINDS AND SMALL HAIL ARE STILL POSSIBLE AND THE 
STORMS MAY RE-INTENSIFY.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN BIRMINGHAM.

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3413 8820 3413 8795 3311 8795 3308 8797
      3307 8802 3304 8804 3305 8807 3301 8817
      3299 8835
TIME...MOT...LOC 2327Z 243DEG 48KT 3417 8792 3329 8796

$$

75

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Birmingham, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 2, 5:09 PM CDT, 33 minutes earlier.

Area forecast discussion, Jul 2, 5:09 PM CDT, 33 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
509 PM CDT WED JUL 2 2014

.UPDATE...
EVENING UPDATE.

&&

.DISCUSSION...

UPDATED THE TONIGHT PORTION OF THE FORECAST TO INCREASE
POPS...ESPECIALLY IN THE WEST. CONVECTION IN MS HAS CONSOLIDATED
INTO A BIG ARCING OUTFLOW WITH A HEAD OF STEAM GOING. WITH SEVERAL
MORE WARM HOURS TO GO BEFORE CONDITIONS START TO APPRECIABLY
STABILIZE...I THINK THERE IS A GOOD CHANCE THAT THE MS CONVECTION
GETS AT LEAST AS FAR EAST AS FAYETTE AND TUSCALOOSA...IF NOT ALL
THE WAY TO I-65...BEFORE IT STARTS TO DIE OFF.

THE REMAINDER OF THE FORECAST STAYS THE SAME.

/61/

&&

.AVIATION...
18Z TAF DISCUSSION.

TSRA CONVECTION ACROSS WRN MS WILL SLOWLY TRAVERSE EWD THIS
AFTERNOON TOWARD AL. ONLY LOW CHANCES ACROSS C AL TERMINALS SO
WILL LEAVE OUT MENTION FOR NOW AS OVERALL MOISTURE IS NOT AS GOOD
AS IT COULD BE. OTHERWISE...VFR CONDITIONS EXPECTED FOR THE NEXT
24 HOURS WITH HUMIDITY VALUES EXPECTED TO LOWER FOR MORNING...SO
UNLESS WE GET A ROGUE/VERY ISOLATED SHOWER OVER A TAF SITE NO FOG
IS ANTICIPATED.

08/MK

&&

.PREV DISCUSSION...
/ISSUED 312 PM CDT WED JUL 2 2014/

RADARS ACROSS ALABAMA ARE VOID OF PRECIPITATION THIS AFTERNOON
EVEN IN THE PRESENCE OF HOT AND HUMID CONDITIONS. LOW-LEVEL
MOISTURE REMAINS PLENTIFUL...BUT PWAT VALUES AROUND 1.3 INCHES ARE
INDICATIVE OF RATHER DRY AND WARM CONDITIONS ALOFT. AN APPROACHING
TROUGH AXIS HAS DONE LITTLE TO CREATE MORE FAVORABLE CONDITIONS
FOR THUNDERSTORMS ACROSS OUR AREA...BUT VISIBLE SATELLITE SHOWS A
FAIRLY WELL-DEFINED AREA OF CONVERGENCE AND THUNDERSTORMS ALONG A
FRONT IN WESTERN MISSISSIPPI. AS THESE STORMS MOVE EASTWARD THEY
ARE EXPECTED TO ENCOUNTER A DRIER...LESS FAVORABLE ENVIRONMENT.
HAVE KEPT A 10 POP WITH SLIGHT CHANCE WORDING IN THE FORECAST FOR
THE WESTERN PARTS OF THE FORECAST AREA FOR THIS EVENING IN CASE
THEY HOLD TOGETHER.

AN UPPER-LEVEL TROUGH AXIS PASSING BY TO OUR NORTH AND THE
ASSOCIATED COLD FRONT WILL BRING A RARE TREAT FOR JULY 4TH
ACTIVITIES IN THE FORM OF MUCH LOWER HUMIDITY FOR THURSDAY THROUGH
SATURDAY. HIGH TEMPERATURES WILL STOP SHORT OF 90 DEGREES FOR MOST
OF THE CWA ON FRIDAY. LOWS ON FRIDAY AND SATURDAY SHOULD RANGE
FROM NEAR 60 NORTH TO THE MID 60S SOUTH.

TEMPERATURES AND HUMIDITY WILL BEGIN TO INCREASE BY SUNDAY AND
MONDAY AS WEAK SOUTHERLY FLOW DEVELOPS. ENOUGH MOISTURE MAY RETURN
BY MONDAY AND TUESDAY FOR AT LEAST ISOLATED SHOWERS AND STORMS.

87/GRANTHAM

&&

.PRELIMINARY POINT TEMPS/POPS...
GADSDEN     67  86  61  84  58 /  30   0   0   0   0
ANNISTON    70  87  62  85  60 /  30   0   0   0   0
BIRMINGHAM  71  87  62  85  62 /  50   0   0   0   0
TUSCALOOSA  70  89  63  87  60 /  80   0   0   0   0
CALERA      71  88  63  86  62 /  50  10   0   0   0
AUBURN      73  90  65  87  64 /  20  10   0   0   0
MONTGOMERY  73  93  66  89  64 /  30  10   0   0   0
TROY        72  93  66  89  63 /  20  10   0   0   0

&&

.BMX WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

Hazardous weather outlook, Jul 2, 5:12 PM CDT, 30 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
512 PM CDT WED JUL 2 2014

ALZ011>015-017>050-032215-
MARION-LAMAR-FAYETTE-WINSTON-WALKER-BLOUNT-ETOWAH-CALHOUN-CHEROKEE-
CLEBURNE-PICKENS-TUSCALOOSA-JEFFERSON-SHELBY-ST. CLAIR-TALLADEGA-
CLAY-RANDOLPH-SUMTER-GREENE-HALE-PERRY-BIBB-CHILTON-COOSA-TALLAPOOSA-
CHAMBERS-MARENGO-DALLAS-AUTAUGA-LOWNDES-ELMORE-MONTGOMERY-MACON-
BULLOCK-LEE-RUSSELL-PIKE-BARBOUR-
512 PM CDT WED JUL 2 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE
NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM.

.DAY ONE...TONIGHT.

ISOLATED STRONG TO SEVERE STORMS ARE POSSIBLE THROUGH 9 PM. THE
THREATS INCLUDE WIND GUSTS 40-60 MPH AND HAIL UP TO QUARTER SIZE.
THE STORMS SHOULD LOSE INTENSITY LATER THIS EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BE
NEEDED THROUGH 9 PM IN WEST CENTRAL ALABAMA.

In the hours before

Special weather statement, Jul 2, 4:55 PM CDT, 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
455 PM CDT WED JUL 2 2014

ALZ030-031-039-022245-
GREENE AL-MARENGO AL-SUMTER AL-
455 PM CDT WED JUL 2 2014

...SIGNIFICANT WEATHER ADVISORY FOR SUMTER...NORTHERN MARENGO AND
SOUTHWESTERN GREENE COUNTIES UNTIL 545 PM CDT...

AT 455 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM EMELLE TO 5 MILES NORTHWEST
OF MYRTLEWOOD...AND MOVING NORTHEAST AT 10 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE
STORMS.

LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  LIVINGSTON...
  LINDEN...
  DEMOPOLIS...
  THE UNIVERSITY OF WEST ALABAMA...
  COATOPA...

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 3277 8837 3288 8806 3258 8778 3253 8781
      3253 8773 3248 8773 3248 8769 3235 8758
      3215 8800 3227 8803 3230 8801 3230 8812
      3264 8839
TIME...MOT...LOC 2155Z 247DEG 9KT 3270 8830 3232 8799

75

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 4:55 PM CDT	Special Weather Statement	BMX	Sumter	50 min
Jul 2, 5:24 PM CDT	Severe Thunderstorm Warning	BMX	Marengo, Sumter	51 min
Jul 2, 6:05 PM CDT	Special Weather Statement	BMX	Chilton	40 min
Jul 2, 6:15 PM CDT	Special Weather Statement	BMX	Hale, Perry	45 min
Jul 2, 6:17 PM CDT	Special Weather Statement	BMX	Greene, Sumter	43 min
Jul 2, 6:25 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Sumter	44 min
Jul 2, 6:30 PM CDT	Special Weather Statement	BMX	Lamar, Marion, Pickens	45 min
Jul 2, 6:33 PM CDT	Severe Thunderstorm Warning	BMX	Chilton, Coosa	42 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2014 Every severe thunderstorm warning in 2014

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.