Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 114, NWS Birmingham, AL

April 4, 20115 counties in Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 4, 2011, 7:08 PM CDT for 5 counties in Alabama. It was in force for 67 min. 11 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: Apr 4, 2011, 7:08 PM CDT (00:08 UTC)
Expired: Apr 4, 2011, 8:15 PM CDT
In force: 67 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Bibb County, AL, Hale County, AL, Jefferson County, AL, Shelby County, AL, Tuscaloosa County, AL

The radar

The Birmingham radar (KBMX), 60 km from the middle of the area, began a volume at 00:10 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
Apr 4, 7:08 PM CDT	TSTM WND DMG	6 W Northport, AL	TREE DOWN ON MT OLIVE ROAD/CR 23.
Apr 4, 7:15 PM CDT	TSTM WND DMG	Hueytown, AL	MULTIPLE TREES DOWN ACROSS OAKMAN PERRISH ROAD/4700
Apr 4, 7:33 PM CDT	TSTM WND DMG	Abernant, AL	TREES DOWN ON JOHNS ROAD AND ABERNANT BALL PARK ROAD.
Apr 4, 7:42 PM CDT	HAIL 0.5	Moundville, AL
Apr 4, 7:58 PM CDT	TSTM WND DMG	Birmingham, AL	TREES AND POWER LINES DOWN ON ALTAMONT ROAD.
Apr 4, 8:00 PM CDT	TSTM WND DMG	Vestavia Hills, AL	TREE DOWN ON SOUTH VIEW DRIVE
Apr 4, 8:05 PM CDT	HAIL 0.25	Bluff Park, AL
Apr 4, 8:08 PM CDT	HAIL 0.5	Bluff Park, AL	STOPPED AND RESTARTED AND INCREASED IN SIZE.
Apr 4, 8:09 PM CDT	TSTM WND DMG	3 Nw Helena, AL	TREE DOWN AT SHADES CREST AND MORGAN ROAD.
Apr 4, 8:10 PM CDT	HAIL 0.88	Pelham, AL
Apr 4, 8:14 PM CDT	HAIL 0.5	Helena, AL

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 6 storm reports to this severe thunderstorm warning; the first came 0 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
Apr 4, 1:03 PM CDT	Tornado Watch	SPC	7 hr
Apr 4, 4:55 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 0.1 hours before the alert went out and 59 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: 862 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 1607 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 251 m²/s²
0-3 km storm-relative helicity: 356 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 9.2

Open this sounding in Storm Lab

The text

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

686 
WUUS54 KBMX 050008
SVRBMX
ALC007-065-073-117-125-050115-
/O.NEW.KBMX.SV.W.0114.110405T0008Z-110405T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
708 PM CDT MON APR 4 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BIBB COUNTY IN CENTRAL ALABAMA...
  NORTHEASTERN HALE COUNTY IN WEST CENTRAL ALABAMA...
  SOUTHERN JEFFERSON COUNTY IN CENTRAL ALABAMA...
  WESTERN SHELBY COUNTY IN CENTRAL ALABAMA...
  TUSCALOOSA COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 815 PM CDT

* AT 705 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 MAYTOWN TO JENA...AND MOVING SOUTHEAST
  AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  HOLT...BIRMINGHAM...FAIRFIELD...HUEYTOWN...HOMEWOOD...BESSEMER...
  VESTAVIA HILLS AND HOOVER.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 234 THROUGH 271...
INTERSTATE 459 EXIT NUMBERS 1 THROUGH 19...
US 78 EXIT NUMBERS 87 THROUGH 91...
INTERSTATE 20 EXIT NUMBERS 62 THROUGH 128...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES LEADING KILLERS. REMEMBER...
IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING.

&&

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

LAT...LON 3368 8684 3321 8663 3282 8769 3299 8773
      3300 8771 3303 8771 3303 8774 3327 8779
TIME...MOT...LOC 0008Z 337DEG 23KT 3353 8701 3311 8779

$$

61

2 follow-up statements

766 
WWUS54 KBMX 050037
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
737 PM CDT MON APR 4 2011

ALC007-065-073-117-125-050115-
/O.CON.KBMX.SV.W.0114.000000T0000Z-110405T0115Z/
HALE AL-BIBB AL-SHELBY AL-TUSCALOOSA AL-JEFFERSON AL-
737 PM CDT MON APR 4 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
JEFFERSON...TUSCALOOSA...WESTERN SHELBY...NORTHERN BIBB AND
NORTHEASTERN HALE COUNTIES UNTIL 815 PM CDT...

AT 733 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 ENSLEY TO MOUNDVILLE...MOVING
SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  BIRMINGHAM...BESSEMER...HOMEWOOD...VESTAVIA HILLS...HOOVER...
  HELENA...PELHAM...ALABASTER...LIPSCOMB AND U.A.B. CAMPUS.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 234 THROUGH 266...
INTERSTATE 459 EXIT NUMBERS 1 THROUGH 17...
US 78 EXIT NUMBERS 87 THROUGH 91...
INTERSTATE 20 EXIT NUMBERS 62 THROUGH 128...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURE'S LEADING KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

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

LAT...LON 3348 8732 3368 8684 3321 8663 3282 8769
      3299 8773 3300 8771 3303 8771 3303 8774
      3314 8775
TIME...MOT...LOC 0036Z 308DEG 27KT 3349 8687 3294 8763

$$

61

311 
WWUS54 KBMX 050100
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
800 PM CDT MON APR 4 2011

ALC007-065-073-117-125-050115-
/O.CON.KBMX.SV.W.0114.000000T0000Z-110405T0115Z/
HALE AL-BIBB AL-SHELBY AL-TUSCALOOSA AL-JEFFERSON AL-
800 PM CDT MON APR 4 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
JEFFERSON...SOUTHEASTERN TUSCALOOSA...WESTERN SHELBY...NORTHERN BIBB
AND NORTHEASTERN HALE COUNTIES UNTIL 815 PM CDT...

AT 756 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 INDIAN SPRINGS VILLAGE TO
EOLINE...MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  PELHAM...ALABASTER...EOLINE...OAK MOUNTAIN STATE PARK...MAYLENE...
  SHELBY COUNTY AIRPORT...MARVEL...SILURIA...SAGINAW AND CAMP BRANCH.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 234 THROUGH 266...
INTERSTATE 459 EXIT NUMBERS 1 THROUGH 17...
INTERSTATE 20 EXIT NUMBERS 86 THROUGH 128...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN
THE PATH OF THIS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

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

LAT...LON 3360 8680 3321 8663 3282 8769 3294 8772
TIME...MOT...LOC 0100Z 308DEG 27KT 3338 8673 3301 8725

$$

61

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 Apr 4, 6:57 PM CDT, 11 minutes earlier.

Area forecast discussion, Apr 4, 6:57 PM CDT, 11 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
657 PM CDT MON APR 4 2011

.UPDATE...AVIATION DISCUSSION.

&&

.DISCUSSION...

LINE OF STRONG TO SEVERE THUNDERSTORMS ASSOCIATED WITH A STRONG
STORM SYSTEM OVER MUCH OF THE EASTERN CONUS NOW STRETCHES FROM THE
OHIO RIVER VALLEY SOUTHWESTWARD TO THE NORTHWESTERN GULF COAST. AT
THIS TIME...THIS LINE OF STORMS HAS PUSHED INTO NORTHWEST CENTRAL
ALABAMA. AIRMASS AHEAD OF THE LINE REMAINS UNSTABLE...WITH CAPE
VALUES OVER 2000J/KG IN THE SOUTH TO 1000J/KG IN THE NORTH. LOW
LEVEL WINDS CONTINUE TO INCREASE AHEAD OF THIS SYSTEM...WITH THE
BEST DIRECTIONAL SHEAR CONFINED CLOSER TO THE LINE OF THUNDERSTORMS.
STRAIGHT LINE WINDS WILL BE THE BIGGEST THREAT ALONG THE SQUALL
LINE...BUT CANNOT RULE OUT TORNADO SPIN UPS ALONG THE LEADING EDGE
OF THE LINE. LARGE HAIL WILL ALSO BE POSSIBLE. WITH THE QUICK
MOVEMENT OF THE LINE...DO NOT EXPECT WIDESPREAD FLOODING ISSUES.

NOT MANY FORECAST CHANGES NEEDED FOR THE OVERNIGHT PERIOD. THE
SQUALL LINE SHOULD MOVE ACROSS THE AREA FAIRLY QUICKLY...EXITING THE
SOUTHEAST AFTER MIDNIGHT. IN ADDITIONAL TO POST FRONTAL GUSTY
NORTHWESTERLY WINDS...GRADIENT WINDS AHEAD OF THE LINE OF STORMS
WILL REMAIN QUITE GUSTY FROM THE SOUTH...AND WILL EXTEND THE WIND
ADVISORY UNTIL 1AM FOR ALL COUNTIES.

AFTER THIS SYSTEM EXITS THE AREA EARLY TUESDAY...QUIETER CONDITIONS
RETURN THROUGH MUCH OF THE WEEK. UPPER LEVEL RIDGING WILL BUILD
ACROSS THE SOUTHEAST...WITH HIGH PRESSURE ANCHORED TO OUR EAST
THROUGH THE WEEK. SEVERAL IMPULSES WILL BRUSH THE AREA AS THEY MOVE
TO THE NORTH AROUND THE PERIPHERY OF THE RIDGE. MODELS CONTINUE TO
HINT AT LOW POPS ASSOCIATED WITH WEAKNESSES IN THE RIDGE FOR SEVERAL
PERIODS TOWARD NEXT WEEKEND. THINK MOST OF THE AREA WILL BE
DRY...UNTIL A SYSTEM APPROACHES LATE SUNDAY INTO MONDAY...PUSHING
THE RIDGE OFF THE ATLANTIC COAST.

WITH STRONG NORTHWESTERLY FLOW BEHIND THIS STORM SYSTEM...A BRIEF
COOL DOWN TUESDAY WILL KEEP HIGHS IN THE UPPER 50S AND 60S. COULD
SEE SEVERAL LOCATIONS DROP INTO THE LOWER 30S TUESDAY NIGHT...WITH
MOST OF THE AREA IN THE MID TO UPPER 30S. A MODERATING TREND FOR THE
SECOND HALF OF THE WEEK WILL BUMP TEMPS BACK UP INTO THE 80S BY THE
WEEKEND.

14

&&

AVIATION...00Z TAF DISCUSSION.

A LINE OF STRONG TO SEVERE THUNDERSTORMS CONTINUE TO MOVE ACROSS
CENTRAL ALABAMA THIS EVENING. THERE IS THE POTENTIAL THAT SOME IF
NOT ALL THE TAF SITES WILL SEE SOME STRONG WINDS OUT OF THESE WITH
THE POSSIBILITY OF DAMAGING WINDS. TRIED TO TIME THE LINE WHEN IT
WILL AFFECT A SPECIFIC SITE BASED ON ITS CURRENT SPEED.
HOWEVER...WILL ADJUST AS NEEDED...ESPECIALLY FOR THOSE SOUTHEASTERN
TAFS.

ONCE THE LINE MOVES THROUGH...EXPECT WINDS TO SHIFT MORE TO THE WEST
AND CONTINUED GUSTY BUT NOT NEARLY AS STRONG. CEILINGS WILL BE IN
THE MVFR RANGE FOR A FEW HOURS...BUT WILL QUICKLY LIFT AS CLEARING
SKIES ARE NOT THAT FAR BEHIND THE FRONT.

SKIES WILL BE CLEAR TOMORROW. WINDS WILL BE MORE NORTHERLY AND WILL
REMAIN GUSTY.

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

&&

.BMX WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY UNTIL 1 AM CDT TUESDAY FOR ALL OF CENTRAL ALABAMA

&&

Hazardous weather outlook, Apr 4, 4:10 PM CDT, 2 hours 58 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
410 PM CDT MON APR 4 2011

ALZ011>015-017>050-051800-
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-
410 PM CDT MON APR 4 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

A STRONG COLD FRONT WILL BRING A SIGNIFICANT SEVERE WEATHER THREAT
TO ALL OF CENTRAL ALABAMA THIS AFTERNOON AND EVENING. ALL SEVERE
WEATHER THREATS ARE LIKELY...INCLUDING THE THREAT FOR DAMAGING
STRAIGHT LINE WINDS...LARGE HAIL...ISOLATED TORNADOES...AND BRIEF
LOCALLY HEAVY RAINFALL.

FOR THE REMAINDER OF THE AFTERNOON THROUGH AROUND MIDNIGHT...THE
CONVECTIVE SQUALL LINE IS EXPECTED TO INCREASE IN INTENSITY AS IT
PROGRESSES ACROSS THE STATE. THE GREATEST THREAT WILL TRANSITION TO
DAMAGING STRAIGHT LINE WINDS...ALTHOUGH HAIL AND A BRIEF ISOLATED
TORNADO CAN NOT BE RULED OUT ALONG THE LINE. THE LINE OF
THUNDERSTORMS IS EXPECTED TO EXIT CENTRAL ALABAMA AROUND THE
MIDNIGHT HOUR.

STRONG GRADIENT WINDS ARE POSSIBLE IN ADVANCE OF THE STORM SYSTEM
TODAY...WITH GUSTS OF UP TO 40 MPH.

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

A COLD AIR MASS BEHIND THE FRONT WILL ALLOW TEMPERATURES TO DROP
DOWN INTO THE 30S ON WEDNESDAY MORNING. A FEW LOCATIONS COULD DROP
DOWN TO NEAR THE FREEZING MARK IN THE COLDER VALLEY LOCATIONS. A
LIGHT FROST IS POSSIBLE ACROSS MUCH OF NORTH CENTRAL ALABAMA...
WHICH COULD POSE A THREAT TO TENDER VEGETATION.

DRY CONDITIONS BEHIND THE FRONT WILL CREATE HIGH FIRE DANGER
WEDNESDAY AFTERNOON ESPECIALLY ACROSS THE SOUTHEAST PORTIONS OF
CENTRAL ALABAMA...MAINLY ALONG AND SOUTH OF THE INTERSTATE 85
CORRIDOR. OUTDOOR BURNING IS HIGHLY DISCOURAGED.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT WILL CONTINUE
TO BE NEEDED THIS AFTERNOON THROUGH LATE THIS EVENING FOR SEVERE
WEATHER.

08/MNK

In the hours before

Local storm report, Apr 4, 5:45 PM CDT, 1 hour 23 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BIRMINGHAM AL
545 PM CDT MON APR 04 2011

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

0415 PM     TSTM WND DMG     S DETROIT               34.03N 88.17W
04/04/2011                   LAMAR              AL   EMERGENCY MNGR

            BOX TRUCK BLOWN OFF SR17 JUST SOUTH OF DETROIT

&&

ROCKY

Local storm report, Apr 4, 5:51 PM CDT, 1 hour 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
551 PM CDT MON APR 04 2011

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

0530 PM     HAIL             MILLPORT                33.56N 88.08W
04/04/2011  E0.50 INCH       LAMAR              AL   EMERGENCY MNGR

&&

ROCKY

Local storm report, Apr 4, 6:16 PM CDT, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
616 PM CDT MON APR 04 2011

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

0616 PM     HEAVY RAIN       MILLPORT                33.56N 88.08W
04/04/2011  M3.00 INCH       LAMAR              AL   PUBLIC

            APPROX 2 HOURS AFTER RADAR ESTIMATE OF START TIME.

&&

ROCKY

Local storm report, Apr 4, 6:36 PM CDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
636 PM CDT MON APR 04 2011

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

0636 PM     FLASH FLOOD      FAYETTE                 33.69N 87.83W
04/04/2011                   FAYETTE            AL   EMERGENCY MNGR

            18 INCH DEPT OF FLOODING IN TOWN

&&

ROCKY

Local storm report, Apr 4, 6:45 PM CDT, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
645 PM CDT MON APR 04 2011

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

0622 PM     NON-TSTM WND DMG WETUMPKA                32.54N 86.20W
04/04/2011                   ELMORE             AL   EMERGENCY MNGR

            TREE DOWN ON MOBILE HOME

&&

ROCKY

Local storm report, Apr 4, 7:05 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
705 PM CDT MON APR 04 2011

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

0620 PM     HAIL             N JASPER                33.85N 87.27W
04/04/2011  E1.00 INCH       WALKER             AL   PUBLIC

            FARMSTEAD

&&

ROCKY

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 7:06 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Hale, Marengo, Sumter	54 min
Apr 4, 7:11 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Etowah, Jefferson, St. Clair, Shelby	64 min
Apr 4, 7:14 PM CDT	Areal Flood Advisory	BMX	Bibb, Blount, Cherokee, Etowah, Fayette, Greene and 13 more	3 hr
Apr 4, 7:25 PM CDT	Flash Flood Warning	BMX	Lamar	3 hr
Apr 4, 7:27 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	48 min
Apr 4, 7:40 PM CDT	Flash Flood Warning	BMX	Blount, Jefferson, St. Clair, Walker	3 hr
Apr 4, 7:49 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cleburne, Talladega	41 min
Apr 4, 7:49 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Hale, Perry	26 min
Apr 4, 7:56 PM CDT	Severe Thunderstorm Warning	BMX	Hale, Marengo, Perry	34 min
Apr 4, 8:07 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton, Coosa, Perry, Shelby, Talladega	38 min
Apr 4, 8:13 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Perry	17 min
Apr 4, 8:16 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, Shelby	29 min
Apr 4, 8:25 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Chilton, Dallas, Lowndes, Marengo, Perry	65 min
Apr 4, 8:29 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cherokee, Cleburne, St. Clair, Shelby, Talladega	46 min
Apr 4, 8:37 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Chilton, Clay, Coosa, Shelby, Talladega	38 min
Apr 4, 8:42 PM CDT	Areal Flood Advisory	BMX	Autauga, Calhoun, Chambers, Chilton, Clay, Cleburne and 10 more	3 hr
Apr 4, 8:58 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cleburne, Randolph, Talladega	47 min
Apr 4, 9:10 PM CDT	Severe Thunderstorm Warning	BMX	Clay, Coosa, Randolph, Tallapoosa	35 min
Apr 4, 9:14 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Elmore, Lowndes, Montgomery	31 min
Apr 4, 9:40 PM CDT	Severe Thunderstorm Warning	BMX	Bullock, Elmore, Lee, Lowndes, Macon, Montgomery and 1 more	65 min
Apr 4, 9:42 PM CDT	Severe Thunderstorm Warning	BMX	Chambers, Clay, Cleburne, Elmore, Randolph, Tallapoosa	63 min
Apr 4, 10:22 PM CDT	Severe Thunderstorm Warning	BMX	Bullock, Pike	38 min
Apr 4, 10:39 PM CDT	Severe Thunderstorm Warning	BMX	Barbour, Bullock, Chambers, Lee, Macon, Russell	51 min
Apr 4, 10:52 PM CDT	Areal Flood Advisory	BMX	Barbour, Bullock, Lee, Macon, Pike, Russell	113 min
Apr 4, 10:54 PM CDT	Severe Thunderstorm Warning	BMX	Barbour, Bullock, Pike	51 min
Apr 4, 11:26 PM CDT	Severe Thunderstorm Warning	BMX	Barbour, Russell	19 min
Apr 4, 11:43 PM CDT	Severe Thunderstorm Warning	BMX	Barbour	17 min
Apr 5, 3:10 PM CDT	Fire Weather Watch	BMX	Autauga, Barbour, Bullock, Chambers, Chilton, Coosa and 8 more	14 hr
Apr 5, 3:17 PM CDT	Frost Advisory	BMX	Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more	16 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2011 Every severe thunderstorm warning in 2011

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.