Alert archive / Alabama / Tornado Warnings in 2010

Tornado Warning 83, NWS Birmingham, AL

November 30, 2010Elmore County, Alabama

NWS Birmingham, AL issued this tornado warning at Nov 30, 2010, 10:20 AM CST for Elmore County, Alabama. It was in force for 25 min. 4 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: Nov 30, 2010, 10:20 AM CST (16:20 UTC)
Expired: Nov 30, 2010, 10:45 AM CST
In force: 25 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

County Elmore County, AL

What was reported inside it

Time	Report	Where	Remark
Nov 30, 10:23 AM CST	TORNADO 0	Dexter, AL	SEVERAL TREES WERE BLOWN DOWN OR WERE UPROOTED ALONG THE PATH. A FEW HOMES SUFFERED MINOR ROOF DAMAGE AND OUTBUILDINGS WERE DAMAGED.
Nov 30, 10:26 AM CST	TSTM WND DMG	Dexter, AL	MINOR ROOF DAMAGE AND SIDING DAMAGE TO A HOME.
Nov 30, 10:26 AM CST	TSTM WND DMG	Wetumpka, AL	SEVERAL TREES DOWN BLOCKING THE ROADWAY ON RIVER FALLS ROAD. SEVERAL OTHER TREES DOWN IN THE VICINITY.
Nov 30, 10:35 AM CST	TORNADO	Dexter, AL	TORNADO TOUCHDOWN REPORTED. SEVERAL TREES DOWN INCLUDING ONE IN THE 2500 BLOCK OF DEXTER ROAD. MINOR ROOF DAMAGE TO A HOME ON MOUNT ZION ROAD AND CR-49.

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 2 storm reports to this tornado warning; the first came 3 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 watch it was issued in

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

Issued	Product	Office	Lasted
Nov 30, 3:49 AM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 4.3 hours before the alert went out and 82 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: 444 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 484 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 385 m²/s²
0-3 km storm-relative helicity: 473 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

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

577 
WFUS54 KBMX 301620
TORBMX
ALC051-301645-
/O.NEW.KBMX.TO.W.0083.101130T1620Z-101130T1645Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1020 AM CST TUE NOV 30 2010

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN ELMORE COUNTY IN EAST CENTRAL ALABAMA...

* UNTIL 1045 AM CST

* AT 1021 AM CST...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED NEAR ELMORE...OR 6 MILES NORTHWEST OF WETUMPKA...AND
  MOVING NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WEOKA MILLS...TEN CEDAR ESTATES...DEXTER...SANTUCK...MARTIN LAKE AT
  KOWALIGA AND CENTRAL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW.

&&

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

LAT...LON 3259 8641 3260 8641 3276 8626 3275 8598
      3276 8598 3276 8596 3275 8595 3250 8623
      3251 8626 3250 8626 3249 8628
TIME...MOT...LOC 1621Z 221DEG 41KT 3261 8626

$$

75

1 follow-up statement

796 
WWUS54 KBMX 301631
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1031 AM CST TUE NOV 30 2010

ALC051-301645-
/O.CON.KBMX.TO.W.0083.000000T0000Z-101130T1645Z/
ELMORE AL-
1031 AM CST TUE NOV 30 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL ELMORE
COUNTY UNTIL 1045 AM CST...

AT 1031 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR DEXTER...OR 7 MILES SOUTHWEST OF EQUALITY...
MOVING NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  MARTIN LAKE AT KOWALIGA AND CENTRAL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW.

&&

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

LAT...LON 3272 8598 3258 8614 3259 8614 3271 8620
      3276 8616 3275 8598 3276 8598 3276 8596
      3275 8595
TIME...MOT...LOC 1631Z 226DEG 44KT 3269 8614

$$

75

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Nov 30, 9:28 AM CST, 52 minutes earlier.

Area forecast discussion, Nov 30, 9:28 AM CST, 52 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BIRMINGHAM AL
928 AM CST TUE NOV 30 2010

.UPDATE...15Z MESOSCALE UPDATE.

&&

.DISCUSSION... / 15Z MESOSCALE DISCUSSION /

0-6 KM SHEAR REMAINS HIGH WITH 50 KT SOUTHEAST TO 70 KT NORTHWEST.
THE COLD FRONT EXTENDED FROM DEKALB COUNTY TO SHELBY COUNTY TO
DALLAS COUNTY.  0-1 KM SRH OUT AHEAD OF THE COLD FRONT WAS STILL
HIGH WITH 300 TO 400 M2/S2 VALUES.  HOWEVER...THE 0-1 KM EHI WAS
LESS THAN 1 EVERYWHERE AND CAPE VALUES ARE VERY LOW.  BEST 3-HOUR
PRESSURE CHANGES WERE OVER EXTREME EASTERN AL TO NORTHERN GA AND
EASTERN TN.  MUCAPE WAS WEAK WITH ONLY 200 TO 300 J/KG.
PRECIPITABLE WATER VALUES WERE 1.5 TO 1.75 INCHES AHEAD OF FRONT.

LOW-LEVEL SHEAR STILL STRONG ENOUGH TO SUPPORT BOWING ECHOES AND
MESOVORTICES IN THE QLCS AHEAD OF THE COLD FRONT.  WEAK TORNADOES
POSSIBLE WITH THE MESOVORTICES.

EXPECT THIS TORNADO THREAT WILL PERSIST OVER EASTERN AL UNTIL THE
COLD FRONT CLEARS THE AREA EARLY THIS AFTERNOON.  SOME OF THE
MESOSCALE SEVERE WEATHER PARAMETERS ARE EXPECTED TO INCREASE
SLIGHTLY OVER SOUTHEAST AL BY 18Z.

03

&&

.AVIATION...12Z TAF DISCUSSION.

SIGNIFICANT AVIATION CONCERNS RELATED TO FRONTAL PASSAGE...WITH
IFR/MVFR CEILINGS...STRONG AND GUSTY SOUTHERLY WINDS.

COLD FRONT CURRENTLY APPROACHING TCL...AND WILL PASS FROM WEST TO
EAST AFFECTING ALL TAF SITES TODAY. APPROXIMATE PASSAGE TIMES OF
15-16Z AT BHM...16-17Z EET...18-20Z MGM AND ANB...AND FINALLY 21-23Z
AT TOI. BEHIND THE FRONT...EXPECT WINDS BECOMING NORTHWEST AT 10 KTS
AFTER FROPA. MVFR AND PERHAPS IFR CIGS IN CAA EXPECTED POSTFRONTAL
AND OVERNIGHT...WITH WINDS GRADUALLY RELAXING A BIT

NOTICE...KEET TAF WILL HAVE (AMD LTD TO VIS WIND AND WX) AMENDED
TO THE END OF THE FORECAST THROUGH THE END OF 2010. THE CEILOMETER
DATA WILL BE GOING THROUGH NUMEROUS TESTS AND MONITORED FOR
ACCURACY.

&&

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

&&

Hazardous weather outlook, Nov 30, 5:28 AM CST, 4 hours 52 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
528 AM CST TUE NOV 30 2010

ALZ011>015-017>050-011230-
AUTAUGA-BARBOUR-BIBB-BLOUNT-BULLOCK-CALHOUN-CHAMBERS-CHEROKEE-
CHILTON-CLAY-CLEBURNE-COOSA-DALLAS-ELMORE-ETOWAH-FAYETTE-GREENE-HALE-
JEFFERSON-LAMAR-LEE-LOWNDES-MACON-MARENGO-MARION-MONTGOMERY-PERRY-
PICKENS-PIKE-RANDOLPH-RUSSELL-SHELBY-ST CLAIR-SUMTER-TALLADEGA-
TALLAPOOSA-TUSCALOOSA-WALKER-WINSTON-
528 AM CST TUE NOV 30 2010

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

.DAY ONE...TODAY AND TONIGHT.

DAMAGING WINDS AND ISOLATED TORNADOES ARE POSSIBLE FOR MUCH OF
CENTRAL ALABAMA THROUGH THIS AFTERNOON. A COLD FRONT WILL SLOWLY
MOVE FROM WEST TO EAST ACROSS THE AREA ENDING THE SEVERE WEATHER
THREAT.

LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE...WITH RAIN
AMOUNTS OF 1 TO 3 INCHES EXPECTED AS THE FRONT MOVES THROUGH.
ISOLATED LOCATIONS MAY EXPERIENCE SOME MINOR FLOODING ESPECIALLY IN
POOR DRAINAGE AREAS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT IS NECESSARY
THROUGH THIS AFTERNOON.

75/LINHARES

In the hours before

Local storm report, Nov 30, 8:07 AM CST, 2 hours 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
807 AM CST TUE NOV 30 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0650 AM     TSTM WND DMG     PINSON                  33.69N 86.68W
11/30/2010                   JEFFERSON          AL   AMATEUR RADIO

            TRAFFIC LIGHTS OUT AND TREE DOWN AT INTERSECTION OF HWY
            79 AND CLAYTON ST. POWER OUT AT PINSON ELEMENTARY SCHOOL.

&&

Local storm report, Nov 30, 8:43 AM CST, 1 hour 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
843 AM CST TUE NOV 30 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0814 AM     TSTM WND DMG     5 N BLOUNTSVILLE        34.17N 86.58W
11/30/2010                   BLOUNT             AL   EMERGENCY MNGR

            ALABAMA POWER REPORTS TREES DOWN IN THE AREA AROUND THE
            JUNCTION OF COUNTY HWYS 6 AND 49, SHOP BUILDING LOST
            ROOF. TREE DOWN ON MOBILE HOME ALONG TOWNS ROAD,NO
            INJURIES REPORTED.

&&

Local storm report, Nov 30, 8:56 AM CST, 1 hour 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
856 AM CST TUE NOV 30 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0745 AM     TSTM WND DMG     ONEONTA                 33.95N 86.47W
11/30/2010                   BLOUNT             AL   EMERGENCY MNGR

            SEVERAL RADIO ANTENNAS DOWN AT LOCAL RADIO STATION TOWER
            IN TOWN OF ONEONTA.

&&

Local storm report, Nov 30, 9:02 AM CST, 1 hour 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
902 AM CST TUE NOV 30 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0854 AM     TSTM WND DMG     CHELSEA                 33.33N 86.64W
11/30/2010                   SHELBY             AL   EMERGENCY MNGR

            TREES AND POWER LINES DOWN AT JUNCTIONS OF CHELSEA RD AT
            LIBERTY ROAD AND MEADOW LAKE LANE.

&&

Local storm report, Nov 30, 9:28 AM CST, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
928 AM CST TUE NOV 30 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0915 AM     TSTM WND DMG     4 SW TALLADEGA SUPERSPE 33.53N 86.13W
11/30/2010                   TALLADEGA          AL   EMERGENCY MNGR

            WIND BLEW CARS OFF THE ROAD ALONG AL HWY 77N. ALSO
            TWISTED ROAD SIGNS.

&&

Local storm report, Nov 30, 9:44 AM CST, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
944 AM CST TUE NOV 30 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0933 AM     TSTM WND GST     OXFORD                  33.60N 85.83W
11/30/2010  E46 MPH          CALHOUN            AL   AMATEUR RADIO

            HAM WEATHER STATION ON MUDD STREET RECORDED 46 MPH WINDS.

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 29, 11:44 PM CST	Tornado Warning	BMX	Lamar, Pickens	26 min
Nov 30, 12:06 AM CST	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Marion	39 min
Nov 30, 12:43 AM CST	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Marion, Walker, Winston	47 min
Nov 30, 12:56 AM CST	Flash Flood Warning	BMX	Lamar	3 hr
Nov 30, 1:24 AM CST	Tornado Warning	BMX	Lamar, Pickens	36 min
Nov 30, 1:42 AM CST	Areal Flood Advisory	BMX	Fayette, Marion	3 hr
Nov 30, 2:09 AM CST	Areal Flood Advisory	BMX	Winston	111 min
Nov 30, 2:28 AM CST	Tornado Warning	BMX	Pickens	32 min
Nov 30, 2:33 AM CST	Tornado Warning	BMX	Pickens	42 min
Nov 30, 2:53 AM CST	Tornado Warning	BMX	Fayette, Pickens, Tuscaloosa	52 min
Nov 30, 3:06 AM CST	Tornado Warning	BMX	Fayette, Pickens, Tuscaloosa	39 min
Nov 30, 3:29 AM CST	Tornado Warning	BMX	Walker, Winston	46 min
Nov 30, 3:38 AM CST	Tornado Warning	BMX	Fayette, Tuscaloosa, Walker	52 min
Nov 30, 4:15 AM CST	Tornado Warning	BMX	Winston	13 min
Nov 30, 4:25 AM CST	Tornado Warning	BMX	Walker	8 min
Nov 30, 4:39 AM CST	Severe Thunderstorm Warning	BMX	Greene, Pickens, Sumter	51 min
Nov 30, 4:43 AM CST	Tornado Warning	BMX	Greene, Pickens, Sumter	32 min
Nov 30, 5:04 AM CST	Severe Thunderstorm Warning	BMX	Fayette, Tuscaloosa, Walker	26 min
Nov 30, 5:32 AM CST	Severe Thunderstorm Warning	BMX	Greene, Pickens, Tuscaloosa	43 min
Nov 30, 5:41 AM CST	Severe Thunderstorm Warning	BMX	Greene, Sumter	34 min
Nov 30, 5:44 AM CST	Tornado Warning	BMX	Walker, Winston	46 min
Nov 30, 6:02 AM CST	Tornado Warning	BMX	Fayette, Tuscaloosa, Walker	28 min
Nov 30, 6:18 AM CST	Severe Thunderstorm Warning	BMX	Blount, Jefferson, Tuscaloosa, Walker	42 min
Nov 30, 6:55 AM CST	Severe Thunderstorm Warning	BMX	Blount, Etowah, Jefferson, St. Clair, Shelby, Tuscaloosa	50 min
Nov 30, 7:41 AM CST	Severe Thunderstorm Warning	BMX	Blount, Etowah, Jefferson, St. Clair, Shelby, Talladega	49 min
Nov 30, 7:59 AM CST	Tornado Warning	BMX	Bibb, Chilton, Perry, Shelby	46 min
Nov 30, 8:04 AM CST	Severe Thunderstorm Warning	BMX	Dallas	41 min
Nov 30, 8:24 AM CST	Tornado Warning	BMX	Dallas	36 min
Nov 30, 8:27 AM CST	Severe Thunderstorm Warning	BMX	Calhoun, Cherokee, Clay, Etowah, St. Clair, Shelby and 1 more	48 min
Nov 30, 8:42 AM CST	Tornado Warning	BMX	Shelby	15 min
Nov 30, 8:49 AM CST	Severe Thunderstorm Warning	BMX	Autauga, Chilton, Dallas	41 min
Nov 30, 8:54 AM CST	Severe Thunderstorm Warning	BMX	Cherokee, Etowah	51 min
Nov 30, 9:13 AM CST	Tornado Warning	BMX	Autauga, Chilton	20 min
Nov 30, 9:16 AM CST	Severe Thunderstorm Warning	BMX	Calhoun, Clay, Etowah, St. Clair, Talladega	44 min
Nov 30, 9:29 AM CST	Severe Thunderstorm Warning	BMX	Autauga, Chilton, Coosa, Dallas, Elmore, Lowndes	46 min
Nov 30, 9:35 AM CST	Severe Thunderstorm Warning	BMX	Cherokee, Etowah	25 min
Nov 30, 9:45 AM CST	Severe Thunderstorm Warning	BMX	Calhoun, Cherokee, Clay, Cleburne, Randolph, Talladega	45 min
Nov 30, 9:45 AM CST	Tornado Warning	BMX	Chilton, Coosa	30 min
Nov 30, 10:00 AM CST	Severe Thunderstorm Warning	BMX	Cherokee	30 min
Nov 30, 10:08 AM CST	Severe Thunderstorm Warning	BMX	Coosa, Elmore, Lowndes, Montgomery, Tallapoosa	52 min
Nov 30, 10:13 AM CST	Tornado Warning	BMX	Clay	32 min
Nov 30, 10:27 AM CST	Severe Thunderstorm Warning	BMX	Calhoun, Cherokee, Clay, Cleburne, Randolph	63 min
Nov 30, 10:42 AM CST	Tornado Warning	BMX	Coosa, Elmore, Tallapoosa	20 min
Nov 30, 10:54 AM CST	Severe Thunderstorm Warning	BMX	Chambers, Elmore, Lee, Tallapoosa	51 min
Nov 30, 11:28 AM CST	Severe Thunderstorm Warning	BMX	Cleburne, Randolph	32 min
Nov 30, 11:46 AM CST	Severe Thunderstorm Warning	BMX	Chambers	29 min
Nov 30, 11:57 AM CST	Severe Thunderstorm Warning	BMX	Bullock, Pike	48 min
Nov 30, 12:16 PM CST	Tornado Warning	BMX	Bullock, Pike	44 min
Nov 30, 12:37 PM CST	Severe Thunderstorm Warning	BMX	Lee, Russell	38 min
Nov 30, 1:16 PM CST	Severe Thunderstorm Warning	BMX	Lee, Russell	14 min
Nov 30, 1:29 PM CST	Severe Thunderstorm Warning	BMX	Barbour, Russell	46 min

Nearby

Tornado Warnings in Alabama, 2010 Every tornado warning in 2010 Tornadoes in 2010

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.