Alert archive / Alabama / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 58, NWS Birmingham, AL

April 25, 2015Russell County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 25, 2015, 4:15 PM CDT for Russell County, Alabama. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 25, 2015, 4:15 PM CDT (21:15 UTC)
Expired: Apr 25, 2015, 5:03 PM CDT
In force: 48 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Russell County, AL

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.3 hours before the alert went out and 136 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 582 m above ground
0-6 km bulk shear: 78 kt
0-1 km storm-relative helicity: 295 m²/s²
0-3 km storm-relative helicity: 416 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 25, 3:37 PM CDT, 38 minutes earlier.

Area forecast discussion, Apr 25, 3:37 PM CDT, 38 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
337 PM CDT SAT APR 25 2015

.DISCUSSION...

THE SECOND ROUND OF CONVECTION HAS PUSHED INTO ALABAMA FROM
MISSISSIPPI. THE CORE OF THE MCS WILL TRACK EASTWARD ALONG THE
IMMEDIATE GULF COAST...BUT SOME ISOLATED STORMS ON THE NORTHERN
FRINGES OF THE COMPLEX COULD STILL BECOME SEVERE. THE ACTIVITY
SHOULD BE MOSTLY EAST OF CENTRAL ALABAMA BY 6 PM THIS EVENING...
AND JUST LEFT SMALL RAIN CHANCES IN FOR THE EASTERN COUNTIES
THROUGH 9 PM TO HANDLE ANY LINGERING STORMS. A SURFACE LOW WILL
PASS TO THE NORTHEAST OF ALABAMA LATER TONIGHT AND A COLD FRONT
WILL PUSH INTO NORTH ALABAMA ON SUNDAY. THE AIR MASS WILL BE
MOISTURE STARVED FOR ANY CONVECTION ALONG FRONT ON SUNDAY. THE
FRONT WILL BRING SOME COOLER AND DRIER AIR INTO ALL OF CENTRAL
ALABAMA SUNDAY NIGHT AND MONDAY. SOME OF THE NORTHERN COUNTIES
WILL LIKELY SEE LOWS IN THE MIDDLE TO UPPER 40S TUESDAY MORNING.

A DEEP UPPER LOW OVER THE SOUTHERN ROCKIES WILL SLOWLY SHIFT EASTWARD
ON MONDAY. THE UPPER LOW WILL BE HELD BACK BY THE PRESENCE OF AN
UPPER TROF OVER THE ATLANTIC SEABOARD. THE EASTERN TROF WILL FINALLY
MOVE INTO THE ATLANTIC BY TUESDAY AND THE PLAINS SYSTEM WILL PULL
SOME GULF MOISTURE NORTHWARD INTO THE LOWER MISSISSIPPI RIVER
VALLEY. SHOWERS WILL SPREAD INTO ALABAMA ON TUESDAY FROM THE
SOUTHWEST AND LIKELY OVERSPREAD ALL OF CENTRAL ALABAMA TUESDAY
NIGHT. AS THE UPPER TROF APPROACHES ALABAMA THE SURFACE FLOW
STAYS MAINLY OUT OF THE EAST...AND INSTABILITY SHOULD BE RATHER
LIMITED. THE GFS AND ECMWF MODELS DIVERGE IN THEIR SOLUTIONS WITH
THIS SYSTEM BEYOND TUESDAY. THE ECMWF MODEL IS MORE PROGRESSIVE
WITH THE UPPER TROF AND MOVES THE SYSTEM EAST OF ALABAMA WEDNESDAY
NIGHT... WHILE THE GFS ELONGATES THE TROF AND HANGS IT UP OVER THE
GULF COAST STATES. THE CANADIAN AND DGEX MODELS SHOW A MORE
PROGRESSIVE SOLUTION AND FAVORED THIS SCENARIO.

58/ROSE

&&

.AVIATION...
18Z TAF DISCUSSION.

BEST CHANCES FOR TSRA REDEVELOPMENT FOR THIS AFTERNOON REMAINS
ACROSS THE FAR SOUTH DURING THE PRIME HEAT OF THE DAY. ONLY
MENTION IN TAFS WILL BE AT MGM/TOI. WILL LEAVE OUT OF ALL OTHER
TERMINALS AS THE CHANCES WILL BE LOW. ONE THING NOT HELPING
REDEVELOPMENT IS LINGERING CLOUD COVER. HIGH CLOUDS ARE PRESENT IN
COMBINATION WITH SOME MVFR STRATOCU AT A FEW SPOTS WHICH FOR THE
MOST PART SHOULD GO TO VFR CIGS EXCEPT FOR MAYBE TOI...WHICH IS
LOWER AND MAY STRUGGLE GETTING THERE. LOW STRATUS AND FOG POSSIBLE
ONCE AGAIN TONIGHT...BEST CHANCES SOUTH TAFS...MGM/TOI DUE TO
LINGERING MOISTURE AND BETTER RAIN CHANCES LATE TODAY.

08/MK

&&

.PRELIMINARY POINT TEMPS/POPS...
GADSDEN     62  79  51  71  47 /  20  10   0   0  10
ANNISTON    64  81  54  72  50 /  20  10   0   0  10
BIRMINGHAM  65  81  55  73  51 /  20  10   0   0  10
TUSCALOOSA  65  84  56  75  53 /  10  10   0  10  10
CALERA      65  82  56  74  53 /  20  10   0  10  10
AUBURN      65  82  57  75  53 /  30  10   0  10  10
MONTGOMERY  67  87  60  78  56 /  30  10   0  10  10
TROY        67  87  61  79  56 /  30  10   0  10  10

&&

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

Hazardous weather outlook, Apr 25, 2:22 PM CDT, 1 hour 53 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
222 PM CDT SAT APR 25 2015

ALZ011>015-017>050-262230-
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-
222 PM CDT SAT APR 25 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

A FEW SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS SOUTH CENTRAL
ALABAMA THROUGH 6 PM. THE THREAT AREA IS GENERALLY ALONG AND
SOUTH OF A GEIGER...TO JEMISON...TO LAFAYETTE LINE. HOWEVER...THE
BEST CHANCE FOR SEVERE STORMS WILL BE ALONG AND SOUTH OF A SWEET
WATER...TO HAYNEVILLE...TO UNION SPRINGS LINE. THE THREATS INCLUDE
DAMAGING WINDS AND LARGE HAIL.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BE NEEDED
THIS AFTERNOON AND EVENING.

In the hours before

Special weather statement, Apr 25, 3:09 PM CDT, 1 hour 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
309 PM CDT SAT APR 25 2015

ALZ049-252100-
PIKE AL-
309 PM CDT SAT APR 25 2015

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL PIKE COUNTY UNTIL 400 PM
CDT...

AT 309 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
TROY...MOVING EAST AT 35 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
TROY...BRUNDIDGE...BANKS...TROY MUNICIPAL AIRPORT...TROY
UNIVERSITY...ANTIOCH...BRUNDIDGE MUNICIPAL AIRPORT...MOSSY GROVE...
JOSIE...SANDFIELD AND MONTICELLO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3186 8608 3192 8579 3188 8579 3188 8566
      3186 8568 3184 8567 3180 8567 3179 8566
      3177 8567 3174 8570 3171 8571 3169 8572
      3169 8589 3168 8606
TIME...MOT...LOC 2009Z 263DEG 31KT 3179 8599

GRANTHAM

Local storm report, Apr 25, 3:28 PM CDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
328 PM CDT SAT APR 25 2015

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

0314 PM     HAIL             TROY                    31.81N 85.97W
04/25/2015  E0.88 INCH       PIKE               AL   PUBLIC

            REPORTED VIA SOCIAL MEDIA

&&

DAVIS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 25, 1:57 AM CDT	Special Weather Statement	BMX	Fayette, Lamar	33 min
Apr 25, 2:29 AM CDT	Special Weather Statement	BMX	Fayette, Walker	31 min
Apr 25, 3:04 AM CDT	Special Weather Statement	BMX	Pickens	26 min
Apr 25, 3:27 AM CDT	Severe Thunderstorm Warning	BMX	Marengo, Sumter	63 min
Apr 25, 4:42 AM CDT	Special Weather Statement	BMX	Hale, Marengo, Perry	63 min
Apr 25, 3:09 PM CDT	Special Weather Statement	BMX	Pike	51 min
Apr 25, 3:28 PM CDT	Severe Thunderstorm Warning	BMX	Bullock, Pike	47 min
Apr 25, 3:43 PM CDT	Severe Thunderstorm Warning	BMX	Barbour	62 min
Apr 25, 4:28 PM CDT	Severe Thunderstorm Warning	BMX	Barbour	35 min
Apr 25, 5:06 PM CDT	Severe Thunderstorm Warning	BMX	Coosa, Talladega	31 min
Apr 25, 5:12 PM CDT	Special Weather Statement	BMX	Lee	33 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2015 Every severe thunderstorm warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.