Alert archive / Alabama / Flash Flood Warnings in 2010

Flash Flood Warning 50, NWS Birmingham, AL

June 25, 2010Winston County, Alabama

NWS Birmingham, AL issued this flash flood warning at Jun 25, 2010, 2:59 PM CDT for Winston County, Alabama. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 25, 2010, 2:59 PM CDT (19:59 UTC)
Expired: Jun 25, 2010, 6:00 PM CDT
In force: 3 hr
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Flood severity: None

County Winston County, AL

The radar

The Columbus AFB radar (KGWX), 89 km from the middle of the area, began a volume at 20:02 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 12:00Z, 8.0 hours before the alert went out and 128 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: 1895 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 962 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: -32 m²/s²
0-3 km storm-relative helicity: -32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

574 
WGUS54 KBMX 251959
FFWBMX
ALC133-252300-
/O.NEW.KBMX.FF.W.0050.100625T1959Z-100625T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
259 PM CDT FRI JUN 25 2010

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL WINSTON COUNTY IN NORTHWEST ALABAMA...

* UNTIL 600 PM CDT

* AT 259 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ARLEY...LYNN...ASHRIDGE...BRUSHY LAKE...CORINTH REC AREA...DOUBLE
  SPRINGS...HOUSTON RECREATIONAL AREA...MORELAND...NEEDMORE AND
  WINSTON FREE STATE BARN.

  

&&

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

LAT...LON 3429 8760 3430 8719 3407 8719 3404 8758

$$

STEFKOVICH

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 Jun 25, 1:10 PM CDT, 1 hour 49 minutes earlier.

Area forecast discussion, Jun 25, 1:10 PM CDT, 1 hour 49 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
110 PM CDT FRI JUN 25 2010

.UPDATE...AFTERNOON DISCUSSION.

&&

.DISCUSSION...

HAVE INCREASED THE POPS FOR THIS AFTERNOON TO 70 PERCENT NORTH AND
30 PERCENT SOUTH.  NUMEROUS SHOWERS AND THUNDERSTORMS EXPECTED TO
AFFECT THE NORTHERN HALF OF CWA THIS AFTERNOON WHERE CONVECTION HAS
STARTED EARLY TODAY.  WILL HAVE TO WATCH THE SOUTHERN HALF FOR
OUTFLOW BOUNDARIES AND AN INCREASE IN COVERAGE.

03

&&

.AVIATION...18Z TAF DISCUSSION.

SCATTERED TO WIDESPREAD THUNDERSTORMS ARE ONGOING AT OR IN THE
VICINITY OF TCL EET BHM AND ANB AND ARE EXPECTED TO INCREASE IN BOTH
COVERAGE AND INTENSITY OVER THE NEXT SEVERAL HOURS.  MGM AND TOI
WILL LIKELY EXPERIENCE THUNDERSTORMS BY 20-21Z.  BRIEF INTENSE
RAINFALL MAY RESULT IN VISIBILITY BELOW 1 MILE...AND ABRUPT WIND
CHANGES IN BOTH SPEED AND DIRECTION ARE POSSIBLE AT ALL SITES.
WET MICROBURSTS ARE ALSO A CONCERN THIS AFTERNOON.

THUNDERSTORMS ARE EXPECTED TO GRADUALLY DIMINISH IN INTENSITY AND
COVERAGE AFTER SUNSET...BUT A FEW STORMS MAY LINGER AS LATE AS
06Z.

PREVAILING WINDS WILL GENERALLY BE FROM WEST AT AROUND 5-7
KNOTS...THEN BECOMING CALM OVERNIGHT.

NOTICE...KEET TAF WILL HAVE (AMD LTD TO VIS WIND AND WX) AMENDED TO
THE END OF THE FORECAST UNTIL FURTHER NOTICE WHILE CEILOMETER DATA
IS BEING MONITORED FOR ACCURACY.

12/SIRMON

&&

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

&&

Hazardous weather outlook, Jun 25, 10:30 AM CDT, 4 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1030 AM CDT FRI JUN 25 2010

ALZ011>015-017>050-261530-
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-
1030 AM CDT FRI JUN 25 2010

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

ISOLATED TO SCATTERED SEVERE STORMS ARE POSSIBLE BETWEEN NOON AND 8
PM...GENERALLY ALONG AND NORTH OF A LINE FROM ALICEVILLE TO CALERA
TO HEFLIN. WHILE MOST OF THESE STORMS ARE EXPECTED TO CONTAIN GUSTY
WINDS OF 50 MPH OR LESS AND SMALL HAIL...A FEW COULD REACH SEVERE
LIMITS WITH WINDS IN EXCESS OF 60 MPH.

ELSEWHERE...FURTHER SOUTH...STRONG STORMS WILL BE POSSIBLE BETWEEN
NOON AND 8 PM. WIND GUSTS LESS THAN 50 MPH WILL BE THE MAIN
THREAT...ALONG WITH BRIEF HEAVY RAINFALL.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BE NEEDED
ACROSS THE NORTH THIS AFTERNOON.

17/KLAWS

In the hours before

Local storm report, Jun 25, 2:05 PM CDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
205 PM CDT FRI JUN 25 2010

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

0159 PM     HAIL             5 SW HOLT               33.20N 87.56W
06/25/2010  E0.75 INCH       TUSCALOOSA         AL   TRAINED SPOTTER

            DEARING PLACE SUBDIVISION

&&

KSUMRALL

Special weather statement, Jun 25, 2:07 PM CDT, 52 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
207 PM CDT FRI JUN 25 2010

ALZ014-251945-
WINSTON AL-
207 PM CDT FRI JUN 25 2010

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN WINSTON COUNTY UNTIL
245 PM CDT...

AT 202 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR MORELAND...OR 11 MILES NORTHWEST OF ARLEY...MOVING
EAST AT 5 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  MORELAND...
  BRUSHY LAKE...
  INMANFIELD...
  ADDISON...
  NESMITH...

27

Local storm report, Jun 25, 2:17 PM CDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
217 PM CDT FRI JUN 25 2010

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

0209 PM     HEAVY RAIN       5 SW HOLT               33.20N 87.56W
06/25/2010  E0.00 INCH       TUSCALOOSA         AL   TRAINED SPOTTER

            12TH AND 13TH STREETS COMPLETELY COVERED WITH 4 TO 5
            INCHES OF WATER FOR ABOUT 500 FEET.

&&

KSUMRALL

Local storm report, Jun 25, 2:20 PM CDT, 39 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BIRMINGHAM AL
220 PM CDT FRI JUN 25 2010

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

0209 PM     HEAVY RAIN       5 SW HOLT               33.20N 87.56W
06/25/2010  E3.50 INCH       TUSCALOOSA         AL   TRAINED SPOTTER

            12TH AND 13TH STREETS COMPLETELY COVERED WITH 4 TO 5
            INCHES OF WATER FOR ABOUT 500 FEET.

&&

KSUMRALL

Local storm report, Jun 25, 2:43 PM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
243 PM CDT FRI JUN 25 2010

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

0237 PM     HAIL             TAYLORVILLE             33.15N 87.54W
06/25/2010  E0.50 INCH       TUSCALOOSA         AL   BROADCAST MEDIA

&&

KSUMRALL

Local storm report, Jun 25, 2:44 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
244 PM CDT FRI JUN 25 2010

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

0216 PM     TSTM WND DMG     LEEDS                   33.55N 86.56W
06/25/2010                   JEFFERSON          AL   LAW ENFORCEMENT

            MULTIPLE TREES DOWN ALONG MAIN STREET.

&&

JTALLEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 1:52 PM CDT	Severe Thunderstorm Warning	BMX	Tuscaloosa	38 min
Jun 25, 2:06 PM CDT	Areal Flood Advisory	BMX	Tuscaloosa	54 min
Jun 25, 2:06 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, St. Clair, Shelby, Talladega	54 min
Jun 25, 2:18 PM CDT	Flash Flood Warning	BMX	Tuscaloosa	3 hr
Jun 25, 2:23 PM CDT	Severe Thunderstorm Warning	BMX	Hale, Tuscaloosa	30 min
Jun 25, 2:25 PM CDT	Areal Flood Advisory	BMX	Blount, Etowah, St. Clair	65 min
Jun 25, 2:47 PM CDT	Areal Flood Advisory	BMX	Winston	58 min
Jun 25, 3:39 PM CDT	Severe Thunderstorm Warning	BMX	Elmore, Tallapoosa	37 min
Jun 25, 4:05 PM CDT	Areal Flood Advisory	BMX	Marion	3 hr
Jun 25, 4:26 PM CDT	Severe Thunderstorm Warning	BMX	Marion, Walker, Winston	34 min

Nearby

Flash Flood Warnings in Alabama, 2010 Every flash flood warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.