Alert archive / Alabama / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 45, NWS Birmingham, AL

March 18, 20134 counties in Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 18, 2013, 4:49 PM CDT for 4 counties in Alabama. It was in force for 56 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 18, 2013, 4:49 PM CDT (21:49 UTC)
Expired: Mar 18, 2013, 5:45 PM CDT
In force: 56 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Dallas County, AL, Marengo County, AL, Perry County, AL, Sumter County, AL

The radar

The Birmingham radar (KBMX), 110 km from the middle of the area, began a volume at 21:48 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 18, 4:55 PM CDT	HAIL 1	5 Sse York, AL
Mar 18, 5:11 PM CDT	TSTM WND GST 50	4 Ne Pin Hook, AL	PEA SIZE HAIL AT LOCATION AS WELL.

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 one storm report to this severe thunderstorm warning; the first came 6 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
Mar 18, 1:31 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.8 hours before the alert went out and 110 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: 196 J/kg
Mixed-layer CIN: -139 J/kg
Mixed-layer LCL: 520 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 298 m²/s²
0-3 km storm-relative helicity: 281 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

588 
WUUS54 KBMX 182149
SVRBMX
ALC047-091-105-119-182245-
/O.NEW.KBMX.SV.W.0045.130318T2149Z-130318T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
449 PM CDT MON MAR 18 2013

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN DALLAS COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTHERN MARENGO COUNTY IN SOUTHWEST ALABAMA...
  PERRY COUNTY IN ALABAMA...
  SOUTHERN SUMTER COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 545 PM CDT

* AT 448 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 HEIBERGER TO FAUNSDALE TO CUBA...AND
  MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MARION...UNIONTOWN...VALLEY GRANDE...LINDEN...SELMA...SELMONT-WEST
  SELMONT...KINTERBISH AND VAIDEN.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBERS 1 THROUGH 8...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS.

&&

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

LAT...LON 3250 8840 3260 8786 3258 8788 3253 8786
      3252 8773 3248 8772 3248 8753 3273 8747
      3284 8721 3284 8702 3267 8701 3266 8692
      3242 8683 3224 8706 3221 8738 3226 8751
      3220 8752 3215 8802 3230 8801 3231 8843
TIME...MOT...LOC 2149Z 275DEG 33KT 3270 8726 3251 8756
          3239 8833

$$

GRANTHAM

1 follow-up statement

718 
WWUS54 KBMX 182212
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
512 PM CDT MON MAR 18 2013

ALC047-091-105-119-182245-
/O.CON.KBMX.SV.W.0045.000000T0000Z-130318T2245Z/
DALLAS AL-MARENGO AL-PERRY AL-SUMTER AL-
512 PM CDT MON MAR 18 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
SUMTER...SOUTHERN PERRY...NORTHERN MARENGO AND NORTHERN DALLAS
COUNTIES UNTIL 545 PM CDT...

AT 511 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 PAUL M GRIST STATE PARK TO
UNIONTOWN TO KINTERBISH...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  VALLEY GRANDE...SELMA...SELMONT-WEST SELMONT...LINDEN...
  KINTERBISH...PIN HOOK...CHICKASAW STATE PARK...POTTER STATION...
  BOGUE CHITTO AND DAYTON.

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

LAT...LON 3243 8839 3248 8791 3248 8753 3254 8752
      3272 8704 3266 8701 3266 8692 3254 8691
      3241 8684 3224 8706 3221 8738 3226 8745
      3226 8751 3220 8752 3215 8802 3230 8801
      3232 8843
TIME...MOT...LOC 2212Z 275DEG 33KT 3261 8695 3239 8744
          3235 8829

$$

GRANTHAM

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 Mar 18, 3:29 PM CDT, 1 hour 20 minutes earlier.

Area forecast discussion, Mar 18, 3:29 PM CDT, 1 hour 20 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
329 PM CDT MON MAR 18 2013

.DISCUSSION...

ONGOING STORMS WILL GRADUALLY PUSH EASTWARD OUT OF AREA THROUGH
THE EVENING.

THE REST OF THE 7 DAY FORECAST PERIOD WILL BE LARGELY DOMINATED BY
EASTERN STATES TROUGHINESS...KEEPING OUR AREA NEAR OR BELOW
SEASONAL TEMPERATURE AVERAGES. THERE IS A POTENTIAL FOR FREEZING
TEMPERATURES WEDNESDAY NIGHT INTO EARLY THURSDAY MORNING. NEXT
GOOD CHANCES OF RAIN WILL COME LATE IN THE WEEK INTO NEXT WEEKEND.

/61/

&&

.AVIATION...
18Z TAF DISCUSSION.

THIS IS GOING TO BE A VERY IDEALIZED TAF FORECAST...ESPECIALLY FOR
THE FIRST 6 TO 8 HOURS.  WITH MVFR CIGS BECOMING THINNER AND
THINNER...SUNSHINE IS STARTING TO SQUEEZE THROUGH THE CLOUD DECK.
THIS WILL LIKELY HELP TO DESTABILIZE THINGS...ALLOWING FOR SCATTERED
TS DEVELOPMENT ACROSS MOST OF THE AREA THIS AFTERNOON.  PREVAILING
TAF LINES REALLY REVOLVE AROUND THE LINE OF TS OVER NORTHERN
MISSISSIPPI AND ALABAMA...WHICH WILL CONTINUE PUSHING TO THE SOUTH
AND EAST THROUGH 00Z.  MAY HAVE TO ADJUST A BIT IF THESE SCATTERED
STORMS BEGIN POPPING UP AHEAD OF THE LINE.

WINDS WILL GRADUALLY VEER THROUGH THE AFTERNOON AS WELL...GIVING US
SOUTHWESTERLY SURFACE FLOW AHEAD OF FROPA...WHICH WILL TRANSLATE
THROUGH CENTRAL ALABAMA DURING THE OVERNIGHT HOURS.  CLEARING IS
LIKELY A FEW HOURS AFTER DAYBREAK ON TUESDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
GADSDEN     42  63  40  60  30 / 100   0  10  10   0
ANNISTON    44  63  41  59  32 / 100   0  10  10   0
BIRMINGHAM  44  64  43  61  32 / 100   0  10   0   0
TUSCALOOSA  45  66  44  63  36 /  70   0  10   0   0
CALERA      46  65  43  62  34 / 100   0  10  10   0
AUBURN      51  67  44  61  35 /  90   0  10  10   0
MONTGOMERY  52  69  46  62  37 /  70   0  10  10   0
TROY        55  70  46  62  37 /  60   0  10  10   0

&&

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

&&

Hazardous weather outlook, Mar 18, 1:08 PM CDT, 3 hours 41 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
108 PM CDT MON MAR 18 2013

ALZ011>015-017>050-191815-
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-
108 PM CDT MON MAR 18 2013

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE WILL BE A CHANCE FOR SEVERE THUNDERSTORMS THROUGH 10 PM...
FOR ALL OF CENTRAL ALABAMA. THE PRIMARY THREATS WILL BE DAMAGING
STRAIGHT LINE WINDS AND LARGE HAIL...POSSIBLY UP TO TWO INCHES IN
DIAMETER.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

A DRY AIRMASS WILL WORK INTO THE AREA ON TUESDAY. THERE IS A LOW
CONFIDENCE THAT RELATIVE HUMIDITIES MAY DROP BELOW 25 PERCENT
ACROSS THE EAST FOR SEVERAL HOURS DURING THE AFTERNOON. THIS WOULD
HELP CREATE A POTENTIAL HIGH FIRE DANGER. OUTDOOR BURNING IS
DISCOURAGED WITH THIS TYPE OF AIRMASS.

THERE IS A CHANCE FOR TEMPERATURES TO FALL BELOW THE FREEZING MARK
WEDNESDAY NIGHT INTO THURSDAY MORNING. SENSITIVE VEGETATION WILL
NEED TO BE PROTECTED DUE TO THE FREEZING TEMPERATURES.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT WILL BE
NEEDED THIS AFTERNOON AND TONIGHT.

27

In the hours before

Local storm report, Mar 18, 4:23 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
423 PM CDT MON MAR 18 2013

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

0405 PM     TSTM WND DMG     HOKES BLUFF             34.00N 85.86W
03/18/2013                   ETOWAH             AL   EMERGENCY MNGR

            ROOF OFF BARN ON YANCY DRIVE

&&

SUNGER

Local storm report, Mar 18, 4:24 PM CDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
424 PM CDT MON MAR 18 2013

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

0409 PM     TSTM WND DMG     JACKSONVILLE            33.81N 85.76W
03/18/2013                   CALHOUN            AL   EMERGENCY MNGR

            ROOF DAMAGE TO CAMPUS INN

&&

SUNGER

Special weather statement, Mar 18, 4:24 PM CDT, 25 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
424 PM CDT MON MAR 18 2013

ALZ048-182200-
RUSSELL AL-
424 PM CDT MON MAR 18 2013

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN RUSSELL COUNTY UNTIL
500 PM CDT...

AT 421 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR HAWKINSVILLE...OR 15 MILES NORTH OF EUFAULA...
MOVING EAST AT 35 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
MAINLY RURAL AREAS OF SOUTHERN RUSSELL COUNTY.

&&

LAT...LON 3221 8493 3222 8497 3220 8496 3218 8501
      3213 8505 3210 8504 3206 8505 3206 8519
      3213 8524 3215 8529 3218 8529 3225 8491
TIME...MOT...LOC 2125Z 261DEG 30KT 3210 8516

GRANTHAM

Local storm report, Mar 18, 4:26 PM CDT, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
426 PM CDT MON MAR 18 2013

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

0408 PM     TSTM WND DMG     BLANCHE                 34.36N 85.61W
03/18/2013                   CHEROKEE           AL   EMERGENCY MNGR

            TREES DOWN ON HWY 35 NEAR DEKALB COUNTY LINE

&&

SUNGER

Special weather statement, Mar 18, 4:43 PM CDT, 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
443 PM CDT MON MAR 18 2013

ALZ030>033-039-040-182245-
DALLAS AL-GREENE AL-HALE AL-MARENGO AL-PERRY AL-SUMTER AL-
443 PM CDT MON MAR 18 2013

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN SUMTER...SOUTHERN
PERRY...MARENGO...SOUTHERN HALE...SOUTHEASTERN GREENE AND NORTHERN
DALLAS COUNTIES UNTIL 545 PM CDT...

AT 443 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM MARION TO 9 MILES SOUTHWEST
OF CUBA...AND MOVING EAST AT 45 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THESE STORMS.

LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  UNIONTOWN...
  VALLEY GRANDE...
  LINDEN...
  SELMA...
  SELMONT-WEST SELMONT...

&&

LAT...LON 3251 8840 3269 8740 3252 8689 3244 8686
      3242 8683 3237 8684 3223 8741 3226 8745
      3226 8751 3220 8752 3211 8790 3216 8802
      3230 8801 3232 8843
TIME...MOT...LOC 2143Z 291DEG 40KT 3262 8732 3238 8847

GRANTHAM

Local storm report, Mar 18, 4:45 PM CDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
445 PM CDT MON MAR 18 2013

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

0320 PM     TSTM WND DMG     5 N TRUSSVILLE          33.71N 86.61W
03/18/2013                   JEFFERSON          AL   PUBLIC

            TREES AND POWER LINES DOWN

0356 PM     HAIL             TALLADEGA               33.43N 86.10W
03/18/2013  M0.25 INCH       TALLADEGA          AL   EMERGENCY MNGR

0357 PM     TSTM WND DMG     SARDIS CITY             34.17N 86.12W
03/18/2013                   ETOWAH             AL   EMERGENCY MNGR

            TREES ON HOUSE. RESIDENTS TRAPPED.

0400 PM     TSTM WND GST     2 SSE GADSDEN           33.98N 86.01W
03/18/2013  M88.00 MPH       ETOWAH             AL   BROADCAST MEDIA

            ANEMOMETER REGISTERED 88 MPH PRIOR TO LOSING A CUP.
            NUMEROUS TREES AND POWERLINES DOWN.

0411 PM     TSTM WND DMG     SAKS                    33.71N 85.85W
03/18/2013                   CALHOUN            AL   BROADCAST MEDIA

            ROOF OF ACKER ELECTRIC CO BUILDING PARTIALLY REMOVED.
            WINDS ESTIMATED AT 70-80 MPH BY TRAINED NWS SPOTTER.

0421 PM     HAIL             STURKIE                 32.80N 85.47W
03/18/2013  E1.75 INCH       CHAMBERS           AL   PUBLIC

0422 PM     TSTM WND DMG     2 ESE MOUNT CHEAHA      33.48N 85.77W
03/18/2013                   CLAY               AL   EMERGENCY MNGR

            TREES AND POWER LINES DOWN NEARY HWY 49 AND ABEL RD.

&&

JD/02

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 18, 4:58 AM CDT	Special Weather Statement	BMX	Marion	32 min
Mar 18, 1:06 PM CDT	Special Weather Statement	BMX	Marion	39 min
Mar 18, 1:19 PM CDT	Severe Thunderstorm Warning	BMX	Marion	41 min
Mar 18, 1:31 PM CDT	Severe Thunderstorm Warning	BMX	Marion	44 min
Mar 18, 1:51 PM CDT	Severe Thunderstorm Warning	BMX	Lamar, Marion	54 min
Mar 18, 2:06 PM CDT	Severe Thunderstorm Warning	BMX	Winston	39 min
Mar 18, 2:18 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Marion, Pickens, Winston	57 min
Mar 18, 2:28 PM CDT	Severe Thunderstorm Warning	BMX	Tuscaloosa, Walker	62 min
Mar 18, 3:03 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair	27 min
Mar 18, 3:06 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Jefferson	39 min
Mar 18, 3:20 PM CDT	Special Weather Statement	BMX	Greene, Sumter	55 min
Mar 18, 3:28 PM CDT	Severe Thunderstorm Warning	BMX	Tuscaloosa	47 min
Mar 18, 3:34 PM CDT	Severe Thunderstorm Warning	BMX	Etowah, St. Clair, Shelby	56 min
Mar 18, 3:38 PM CDT	Severe Thunderstorm Warning	BMX	Chilton, Coosa	52 min
Mar 18, 3:46 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Talladega	44 min
Mar 18, 3:54 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton	66 min
Mar 18, 4:01 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cherokee, Talladega	59 min
Mar 18, 4:09 PM CDT	Severe Thunderstorm Warning	BMX	Chambers, Tallapoosa	66 min
Mar 18, 4:12 PM CDT	Severe Thunderstorm Warning	BMX	Clay, Cleburne, Randolph	63 min
Mar 18, 4:14 PM CDT	Severe Thunderstorm Warning	BMX	Coosa	31 min
Mar 18, 4:18 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton, Perry	57 min
Mar 18, 4:24 PM CDT	Special Weather Statement	BMX	Russell	36 min
Mar 18, 4:35 PM CDT	Severe Thunderstorm Warning	BMX	Tallapoosa	55 min
Mar 18, 4:43 PM CDT	Special Weather Statement	BMX	Dallas, Marengo, Perry	62 min
Mar 18, 4:58 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Elmore	62 min
Mar 18, 5:05 PM CDT	Severe Thunderstorm Warning	BMX	Tallapoosa	40 min
Mar 18, 5:18 PM CDT	Severe Thunderstorm Warning	BMX	Chambers, Lee	57 min
Mar 18, 5:30 PM CDT	Special Weather Statement	BMX	Lowndes, Montgomery	60 min
Mar 18, 5:32 PM CDT	Severe Thunderstorm Warning	BMX	Macon	58 min
Mar 18, 5:38 PM CDT	Severe Thunderstorm Warning	BMX	Russell	52 min
Mar 18, 6:11 PM CDT	Special Weather Statement	BMX	Lowndes, Montgomery	49 min
Mar 18, 6:15 PM CDT	Severe Thunderstorm Warning	BMX	Lee	15 min
Mar 18, 6:21 PM CDT	Special Weather Statement	BMX	Barbour, Bullock, Pike, Russell	54 min
Mar 18, 6:52 PM CDT	Severe Thunderstorm Warning	BMX	Barbour, Bullock, Pike	53 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2013 Every severe thunderstorm warning in 2013

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.