Alert archive / Alabama / Flash Flood Warnings in 2013

Flash Flood Warning 10, NWS Birmingham, AL

May 18, 20135 counties in Alabama

NWS Birmingham, AL issued this flash flood warning at May 18, 2013, 3:15 AM CDT for 5 counties in Alabama. It was in force for 3 hr. 6 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: May 18, 2013, 3:15 AM CDT (08:15 UTC)
Expired: May 18, 2013, 6:00 AM CDT
In force: 3 hr
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Flood severity: None

Counties Calhoun County, AL, Clay County, AL, Cleburne County, AL, Randolph County, AL, Talladega County, AL

The radar

The Birmingham radar (KBMX), 85 km from the middle of the area, began a volume at 08:15 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
May 18, 3:15 AM CDT	HEAVY RAIN 0	2 Wnw Chalafinnee, AL	APPROXIMATELTY TWO TO FOUR INCHES OF RAIN HAS FALLEN AND IS BEGINNING TO LEAD TO TRAVEL PROBLEMS IN AND AROUND MT CHEAHA STATE PARK. PORTIONS OF CR 13 NEAR CR 24 HAS BECOME IMPASSABLE. DEPTH OF WATER UNKNOWN AT THIS TIME.
May 18, 3:30 AM CDT	FLASH FLOOD	1 Wnw Morrison Cross Ro, AL	A PORTION OF OLD US HWY 431 NEAR LITTLE PINEYWOOD CREEK WAS TEMPORARILY IMPASSABLE BUT WATERS HAVE SINCE RECEEDED. PORTIONS OF CR 92 WERE ALSO IMPASSABLE FOR A SHORT PERIOD OF TIME. TIME ESTIMATED.
May 18, 3:30 AM CDT	FLASH FLOOD	2 Sw Grant Town, AL	CAMPBELL RD JUST OFF HWY 21 IS IMPASSABLE DUE TO WATER COVERING THE ROAD. UTILITY/FIRE CREWS ARE UNABLE TO REACH DOWNED TREE DUE TO DEPTH OF WATER. PORTIONS OF GRANTTOWN RD ARE ALSO COVERED WITH WATER.
May 18, 4:00 AM CDT	FLASH FLOOD	Oxford, AL	PORTIONS OF US HWY 78 BETWEEN OXFORD AND EASTABOGA AND PORTIONS OF AL HWY 21 BETWEEN OXFORD AND MUNFORD ARE COMPLETELY COVERED BY WATER. TIME ESTIMATED.
May 18, 4:30 AM CDT	FLASH FLOOD	4 Wsw Mount Cheaha, AL	CAMPGROUND AT LAKE CHINNABEE IS FLOODING AS WATERS CONTINUE TO RISE.
May 18, 6:00 AM CDT	FLASH FLOOD	5 Ssw Anniston, AL	ALL LANES OF HIGHWAY 21 SOUTH OF OXFORD ARE IMPASSIBLE DUE TO FLASH FLOODING. A STRANDED MOTORIST ON HIGHWAY 21 HAD TO BE RESCUED BY A SWIFT WATER RESCUE TEAM DUE TO THE HIGH WATER. MULIPLE OTHER ROADS IN AND SOUTH OF OXFORD WERE ALSO IMPASSIBLE DUE TO FLASH F

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 5 storm reports to this flash flood warning; the first came 15 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 00:00Z, 8.3 hours before the alert went out and 85 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: 959 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 881 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 192 m²/s²
0-3 km storm-relative helicity: 340 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 7.2

Open this sounding in Storm Lab

The text

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

381 
WGUS54 KBMX 180815
FFWBMX
ALC015-027-029-111-121-181100-
/O.NEW.KBMX.FF.W.0010.130518T0815Z-130518T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
315 AM CDT SAT MAY 18 2013

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN CLAY COUNTY IN EAST CENTRAL ALABAMA...
  NORTHEASTERN TALLADEGA COUNTY IN EAST CENTRAL ALABAMA...
  NORTHERN RANDOLPH COUNTY IN EAST CENTRAL ALABAMA...
  SOUTHERN CALHOUN COUNTY IN EAST CENTRAL ALABAMA...
  SOUTHERN CLEBURNE COUNTY IN EAST CENTRAL ALABAMA...

* UNTIL 600 AM CDT

* AT 311 AM CDT...NATIONAL WEATHER SERVICE INDICATED TRAINING        
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.     
  RAINFALL OBSERVATIONS AND RADAR ESTIMATES OF 2-3 INCHES OVER THE   
  LAST THREE HOURS HAS ALREADY FALLEN AND ADDITIONAL RAINFALL OF UP  
  TO 2 INCHES ARE POSSIBLE OVER THE NEXT THREE HOURS. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...COBB
  TOWN...OXFORD...WEST END-COBB TOWN...ANNISTON REGIONAL AIRPORT...
  BYNUM...DELTA...FOSTERS CROSS ROADS...GRANT TOWN...HOBSON CITY...
  HONDA MANUFACTURING OF ALABAMA...LINCOLN...MORRISON CROSS ROADS...
  MOUNT CHEAHA...OXFORD LAKE...RANBURNE...TALLADEGA MUNICIPAL
  AIRPORT...TALLADEGA SUPERSPEEDWAY AND WOODLAND.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A VERY DANGEROUS AND POSSIBLY LIFE THREATENING FLOODING 
SITUATION. YOU SHOULD NOT ATTEMPT TO TRAVEL. STAY HOME UNLESS YOU 
ARE FORCED TO EVACUATE TO HIGHER GROUND.

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA OVER THE NEXT THREE HOURS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

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

LAT...LON 3340 8580 3348 8624 3350 8628 3352 8627
      3349 8626 3354 8619 3359 8622 3359 8619
      3361 8620 3363 8616 3368 8618 3367 8615
      3371 8614 3373 8611 3366 8589 3364 8537
      3363 8533 3337 8528

$$

56

1 follow-up statement

852 
WGUS74 KBMX 180920
FFSBMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
420 AM CDT SAT MAY 18 2013

ALC015-027-029-111-121-181100-
/O.CON.KBMX.FF.W.0010.000000T0000Z-130518T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CALHOUN AL-CLAY AL-CLEBURNE AL-RANDOLPH AL-TALLADEGA AL-
420 AM CDT SAT MAY 18 2013

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHEASTERN
TALLADEGA...NORTHERN RANDOLPH...SOUTHERN CLEBURNE...NORTHEASTERN CLAY
AND SOUTHERN CALHOUN COUNTIES UNTIL 600 AM CDT...

AT 415 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED VERY HEAVY 
RAINFALL ACROSS THE WARNED AREA RESULTING IN ROADWAYS BECOMING 
IMPASSABLE. OVER THREE INCHES OF RAIN HAS FALLEN ACROSS PORTIONS OF 
THE WARNED AREA...AND AN ADDITIONAL ONE TO TWO INCHES IS POSSIBLE. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING 
INCLUDE...COBB TOWN...OXFORD...HEFLIN...CHALAFINNEE...ANNISTON 
REGIONAL AIRPORT...BYNUM...DELTA...FOSTERS CROSS ROADS...GRANT 
TOWN...HOBSON CITY...HONDA MANUFACTURING OF 
ALABAMA...LINCOLN...MORRISON CROSS ROADS...MOUNT CHEAHA...OXFORD 
LAKE...RANBURNE...TALLADEGA MUNICIPAL AIRPORT AND TALLADEGA 
SUPERSPEEDWAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS
AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING
AREAS ARE ALSO SUBJECT TO FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 3340 8580 3348 8624 3350 8628 3352 8627
      3349 8626 3354 8619 3359 8622 3359 8619
      3361 8620 3363 8616 3368 8618 3367 8615
      3371 8614 3373 8611 3366 8589 3364 8537
      3363 8533 3337 8528

$$

14

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at May 18, 12:46 AM CDT, 2 hours 29 minutes earlier.

Area forecast discussion, May 18, 12:46 AM CDT, 2 hours 29 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1246 AM CDT SAT MAY 18 2013

.UPDATE...
FOR 06Z AVIATION.

&&

.DISCUSSION...

SHOWERS AND STORMS HAVE FINALLY DECREASED IN INTENSITY DUE TO THE
LOSS OF DAYTIME HEATING THIS EVENING...BUT SEVERAL STORMS WERE
ABLE TO ACHIEVE SEVERE LIMITS WITH LARGE HAIL BEING THE PRIMARY
MODE OF SEVERE WEATHER. LOOKING AT THE CURRENT MESOANALYSIS
SETUP...A WEAK SURFACE TROUGH REMAINS DRAPED ACROSS NORTHERN
PORTIONS OF CENTRAL ALABAMA...WHICH HELPED TO TRIGGER THE SEVERE
STORMS EARLIER THIS EVENING DUE TO OVER 2000 J/KG OF CAPE WITH
LI'S OVER -6 BASED ON RAP ANALYSIS. A SHARP MOISTURE GRADIENT
EXISTS ACROSS THE STATE...WITH NEAR 70 DEWPOINTS ACROSS ALL OF
CENTRAL AND WESTERN ALABAMA...BUT LOWER 60S TO UPPER 50S DEWPOINTS
ALONG THE STATE LINE. BASED ON THE REDUCED INSTABILITIES AND THE
LACK OF ANY UPWARD VERTICAL MOTION ONGOING...WE SHOULD FINALLY
BEGIN TO SEE ANY ORGANIZED CONVECTION DISSIPATE. HOWEVER...WITH
SOME INSTABILITY AND LIFT STILL PRESENT...POP-UP SHOWERS AND
STORMS WILL CONTINUE TO BE LIKELY DURING THE OVERNIGHT HOURS DUE
TO THE SLOW MOVING SURFACE TROUGH CONTINUING TO PUSH THROUGH.
PERIODS OF HEAVY RAINFALL WILL BE POSSIBLE AS PWATS ON THE 00Z
KBMX SOUNDING ARE INDICATING WELL OVER 1.50 INCHES. A FEW AREAS
THAT OBSERVED HEAVY RAINFALL EARLIER THIS EVENING COULD ENCOUNTER
PONDING OF WATER ON ROADWAYS IN A FEW POOR DRAINAGE AREAS. UPDATES
ARE ALREADY OUT.

56/GDG

&&

.AVIATION...
06Z TAF DISCUSSION.

SHOWERS AND TSTORMS WILL CONTINUE TO DEVELOP AND MOVE E/SE ACROSS
THE NORTHERN TERMINALS THRU WHAT COULD BE A GOOD PORTION OF THE
NIGHTTIME HOURS THANKS TO A CONVERGENCE ZONE IN PLACE ACROSS
NORTH CENTRAL ALABAMA. A CLUSTER OF STORMS HAS ALSO DEVELOPED IN MS JUST
WEST OF GOLDEN-TRIANGLE AIRPORT. THESE STORMS APPEAR TO BE MOVING
ESE BUT NOT CERTAIN WHETHER ANY REMNANTS OF THE CLUSTER WILL MAKE IT
TO THE MGM/TOI AREA...THEREFORE HAVE LEFT OUT MENTION OF ANYTHING
FOR NOW. WILL MONITOR TRENDS CLOSELY THRU THE NIGHT AND AMEND AS NECESSARY.

CIGS WILL BE DIFFICULT TO PREDICT DUE TO LIKELY FLUCTUATIONS IN
AND OUT OF TSTORMS. VIS WILL BE REDUCED TO MVFR/IFR IN HEAVIER
SHOWERS/STORMS. AT THIS TIME WILL BRING ALL TERMINALS DOWN TO MVFR
DURING THE NIGHT. DUE TO CONTINUED SHOWER/STORM
ACTIVITY...BOUNDARY LAYER WINDS NEAR 10 KTS AND NO ISENTROPIC LIFT
DO NOT SEE ANY REASON TO MENTION WIDESPREAD FOG OR IFR CIGS.
HOWEVER THERE COULD BE SOME PATCHES OF FOG THAT DEVELOP BETWEEN
SHOWERS.

ADDITIONAL CONVECTION IS EXPECTED TO DEVELOP ONCE AGAIN ON
SATURDAY...WITH THE HIGHEST RAIN CHANCES ACROSS THE NORTH AND EAST.

19

&&

.PRELIMINARY POINT TEMPS/POPS...
GADSDEN     79  63  83  63  84 /  60  60  60  10  10
ANNISTON    79  65  82  65  85 /  60  60  60  10  10
BIRMINGHAM  80  67  85  67  84 /  60  50  20  10  10
TUSCALOOSA  82  68  86  66  85 /  40  20  10  10  10
CALERA      80  66  84  66  84 /  50  40  20  10  10
AUBURN      80  66  84  67  85 /  50  50  40  10  10
MONTGOMERY  83  67  87  66  87 /  40  30  20  10  10
TROY        82  65  87  66  87 /  30  20  20  10  10

&&

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

&&

Hazardous weather outlook, May 18, 2:08 AM CDT, 1 hour 7 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
208 AM CDT SAT MAY 18 2013

ALZ011>015-017>050-190715-
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-
208 AM CDT SAT MAY 18 2013

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

.DAY ONE...TONIGHT.

TRAINING OF SHOWERS AND THUNDERSTORMS PRODUCING MODERATE TO HEAVY
RAINFALL OVER THE SAME AREAS COULD LEAD TO LOCALIZED FLASH
FLOODING CONCERNS ACROSS THE NORTHERN HALF OF CENTRAL ALABAMA TONIGHT.
THE MAIN THREAT WILL BE FOR AREAS GENERALLY ALONG AND NORTH OF A
LINE FROM ALICEVILLE...TO CLANTON...TO LAFAYETTE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THE THREAT FOR LOCALIZED FLASH FLOODING WILL SHIFT EASTWARD
THROUGH THE DAY ON SATURDAY. THE MAIN AREAS OF CONCERN WILL BE
EAST OF INTERSTATE 65. AN ADDITIONAL TWO INCHES OF RAIN IS
POSSIBLE IN SOME LOCALIZED AREAS.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BE
NECESSARY ON SATURDAY.

In the hours before

Local storm report, May 17, 9:28 PM CDT, 5 hours 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
928 PM CDT FRI MAY 17 2013

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

0748 PM     HAIL             MARION                  32.63N 87.32W
05/17/2013  E1.00 INCH       PERRY              AL   BROADCAST MEDIA

            QUARTER SIZE HAIL REPORTED NEAR MARION.

&&

GGOGGINS

Special weather statement, May 17, 9:29 PM CDT, 5 hours 46 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
929 PM CDT FRI MAY 17 2013

ALZ036-180315-
COOSA AL-
929 PM CDT FRI MAY 17 2013

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN COOSA COUNTY UNTIL
1015 PM CDT...

AT 929 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR BLUE SPRINGS...OR 6 MILES SOUTHWEST OF TALLADEGA
SPRINGS...MOVING EAST AT 25 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...
  WEOGUFKA...
  STEWARTVILLE...
  MARBLE VALLEY...
  STRICKLAND CROSSROADS...
  UNITY...

&&

LAT...LON 3292 8617 3298 8651 3301 8652 3306 8652
      3306 8651 3309 8651 3310 8649 3311 8619
      3309 8611
TIME...MOT...LOC 0229Z 281DEG 23KT 3307 8649

GRANTHAM

Special weather statement, May 17, 10:24 PM CDT, 4 hours 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1024 PM CDT FRI MAY 17 2013

ALZ040-180415-
DALLAS AL-
1024 PM CDT FRI MAY 17 2013

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN DALLAS COUNTY UNTIL 1115
PM CDT...

AT 1023 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR MARION JUNCTION...OR 9 MILES EAST OF UNIONTOWN...
MOVING SOUTHEAST AT 15 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  MARION JUNCTION...
  BOGUE CHITTO...
  HAZEN...

&&

LAT...LON 3239 8742 3248 8742 3249 8723 3235 8712
      3227 8734
TIME...MOT...LOC 0324Z 328DEG 14KT 3247 8736

GRANTHAM

Special weather statement, May 18, 12:17 AM CDT, 2 hours 58 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1217 AM CDT SAT MAY 18 2013

ALZ037-038-180600-
CHAMBERS AL-TALLAPOOSA AL-
1217 AM CDT SAT MAY 18 2013

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CHAMBERS AND
NORTHEASTERN TALLAPOOSA COUNTIES UNTIL 100 AM CDT...

AT 1213 AM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM 5 MILES SOUTHEAST OF NEW SITE...OR 12 MILES NORTH OF
DADEVILLE...MOVING EAST AT 15 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  LAFAYETTE...
  STROUD...
  SPARKLING SPRINGS...
  TRAMMEL CROSSROADS...
  ABANDA...

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

&&

LAT...LON 3292 8578 3311 8579 3310 8532 3289 8531
TIME...MOT...LOC 0517Z 272DEG 14KT 3300 8568

56

Special weather statement, May 18, 1:11 AM CDT, 2 hours 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
111 AM CDT SAT MAY 18 2013

ALZ012-022-180700-
LAMAR AL-PICKENS AL-
111 AM CDT SAT MAY 18 2013

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN PICKENS AND SOUTHERN
LAMAR COUNTIES UNTIL 200 AM CDT...

AT 107 AM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR NEW HOPE...OR NEAR COLUMBUS...MOVING EAST AT 40
MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  MILLPORT...
  REFORM...
  GORDO...
  ETHELSVILLE...
  KENNEDY...

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

&&

LAT...LON 3359 8827 3366 8795 3365 8794 3353 8794
      3353 8784 3352 8784 3328 8784 3331 8831
TIME...MOT...LOC 0611Z 267DEG 35KT 3347 8831

56

Special weather statement, May 18, 2:04 AM CDT, 1 hour 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
204 AM CDT SAT MAY 18 2013

ALZ012-013-180730-
FAYETTE AL-LAMAR AL-
204 AM CDT SAT MAY 18 2013

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL LAMAR AND WESTERN FAYETTE
COUNTIES UNTIL 230 AM CDT...

AT 200 AM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR BEDFORD...OR NEAR VERNON...MOVING EAST AT 25 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...

  VERNON...
  BLOOMING GROVE...
  BLUFF...
  MOUNT VERNON...

&&

LAT...LON 3388 8779 3367 8780 3373 8824 3383 8823
TIME...MOT...LOC 0704Z 271DEG 22KT 3377 8815

56

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 7:01 PM CDT	Special Weather Statement	BMX	Tallapoosa	44 min
May 17, 7:09 PM CDT	Special Weather Statement	BMX	Bibb, Chilton	51 min
May 17, 7:26 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton	49 min
May 17, 7:34 PM CDT	Special Weather Statement	BMX	Perry	41 min
May 17, 8:08 PM CDT	Special Weather Statement	BMX	Shelby	52 min
May 17, 8:19 PM CDT	Special Weather Statement	BMX	Dallas	41 min
May 17, 8:36 PM CDT	Severe Thunderstorm Warning	BMX	Dallas, Perry	54 min
May 17, 8:44 PM CDT	Special Weather Statement	BMX	Shelby	46 min
May 17, 9:09 PM CDT	Special Weather Statement	BMX	Shelby	36 min
May 17, 9:18 PM CDT	Special Weather Statement	BMX	Perry	42 min
May 17, 9:29 PM CDT	Special Weather Statement	BMX	Coosa	46 min
May 17, 10:24 PM CDT	Special Weather Statement	BMX	Dallas	51 min
May 18, 12:17 AM CDT	Special Weather Statement	BMX	Chambers	43 min
May 18, 1:11 AM CDT	Special Weather Statement	BMX	Pickens	49 min
May 18, 1:39 AM CDT	Areal Flood Advisory	BMX	Blount, Jefferson, St. Clair	3 hr
May 18, 2:04 AM CDT	Special Weather Statement	BMX	Lamar	26 min
May 18, 2:30 AM CDT	Areal Flood Advisory	BMX	Calhoun, Clay, Cleburne, Randolph, Talladega	3 hr
May 18, 3:29 AM CDT	Flash Flood Warning	BMX	Jefferson, St. Clair	3 hr
May 18, 4:49 AM CDT	Flash Flood Warning Emergency	BMX	Clay	6 hr
May 18, 5:56 AM CDT	Flash Flood Warning Emergency	BMX	Calhoun, Talladega	3 hr
May 18, 7:58 AM CDT	Special Weather Statement	BMX	Autauga	47 min
May 18, 8:03 AM CDT	Special Weather Statement	BMX	Chambers, Lee, Tallapoosa	57 min
May 18, 8:07 AM CDT	River Flood Warning	BMX	Chambers, Elmore, Macon, Randolph, Tallapoosa	26 hr
May 18, 8:36 AM CDT	Special Weather Statement	BMX	Elmore	39 min
May 18, 8:56 AM CDT	Flash Flood Warning	BMX	Clay, Cleburne, Randolph	3 hr
May 18, 9:16 AM CDT	Areal Flood Warning	BMX	Calhoun, Talladega	4 hr
May 18, 9:52 AM CDT	Areal Flood Advisory	BMX	Bullock, Chambers, Coosa, Lee, Macon, Russell and 1 more	3 hr
May 18, 10:53 AM CDT	Special Weather Statement	BMX	Cleburne	67 min
May 18, 10:57 AM CDT	Flash Flood Watch	BMX	Blount, Bullock, Calhoun, Chambers, Cherokee, Clay and 14 more	32 hr
May 18, 2:26 PM CDT	River Flood Warning	BMX	Bibb, Jefferson, Shelby	18 hr
May 18, 4:26 PM CDT	River Flood Warning	BMX	Chilton, Coosa, Elmore, St. Clair, Shelby, Talladega	20 hr
May 18, 6:37 PM CDT	Special Weather Statement	BMX	Dallas	53 min

Nearby

Flash Flood Warnings in Alabama, 2013 Every flash flood 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.