Alert archive / Alabama / Flash Flood Warnings in 2015

Flash Flood Warning 12, NWS Huntsville, AL

December 25, 2015Cullman County, Alabama

NWS Huntsville, AL issued this flash flood warning at Dec 25, 2015, 11:48 AM CST for Cullman County, Alabama. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 25, 2015, 11:48 AM CST (17:48 UTC)
Expired: Dec 25, 2015, 8:45 PM CST
In force: 9 hr
Issued by: NWS Huntsville, AL
Area: Storm-based polygon
Flood severity: None

County Cullman County, AL

The radar

The Birmingham radar (KBMX), 107 km from the middle of the area, began a volume at 17:49 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.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 5.8 hours before the alert went out and 106 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: 803 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 638 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 270 m²/s²
0-3 km storm-relative helicity: 370 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 5.9

Open this sounding in Storm Lab

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 Huntsville, AL wrote its last area forecast discussion before this flash flood warning went out at Dec 25, 10:54 AM CST, 54 minutes earlier.

Area forecast discussion, Dec 25, 10:54 AM CST, 54 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Dec 25, 11:14 AM CST, 34 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1114 AM CST FRI DEC 25 2015

ALZ001>010-016-TNZ076-096-097-260200-
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN-
MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN-
1114 AM CST FRI DEC 25 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ALABAMA...
NORTHEAST ALABAMA...NORTHWEST ALABAMA AND SOUTHERN MIDDLE
TENNESSEE.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

A HEAVY RAIN EVENT WILL CONTINUE FOR THE REMAINDER OF THE AFTERNOON
AND INTO THE EVENING. 3 TO 6 INCHES OF RAIN...WITH HIGHER AMOUNTS
WILL BE POSSIBLE BY EARLY SATURDAY MORNING. THE BEST CHANCE OF HEAVY
RAIN WILL BE EAST OF INTERSTATE 65. THE RAIN WILL BEGIN TO TAPER OFF
AROUND MIDNIGHT. AS A RESULT A FLOOD WATCH IS IN EFFECT THROUGH 6 AM
SATURDAY MORNING.

IN ADDITION TO HEAVY RAIN...STRONG TO SEVERE THUNDERSTORMS WILL BE
POSSIBLE WITH DAMAGING WIND GUSTS THE MAIN THREAT. HOWEVER A BRIEF
TORNADO CAN NOT BE RULED OUT...ALTHOUGH THE OVERALL THREAT OF
TORNADOES WILL BE LOW.

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

SCATTERED THUNDERSTORM ACTIVITY IS EXPECTED FOR SATURDAY AND
SATURDAY NIGHT. HOWEVER...ANOTHER ROBUST STORM SYSTEM IS EXPECTED TO
IMPACT THE AREA BEGINNING PERHAPS AS EARLY AS SUNDAY...WITH EFFECTS
LINGERING INTO EARLY NEXT WEEK. A FEW THUNDERSTORMS DURING THIS
PERIOD COULD BE STRONG TO SEVERE.

.SPOTTER CALL TO ACTION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL MAY
BE NEEDED LATER THIS MORNING THROUGH THE EVENING.

In the hours before

Special weather statement, Dec 25, 9:38 AM CST, 2 hours 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
938 AM CST FRI DEC 25 2015

ALZ006>009-016-251630-
CULLMAN AL-MARSHALL AL-MORGAN AL-MADISON AL-JACKSON AL-
938 AM CST FRI DEC 25 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN CULLMAN...
MARSHALL...SOUTHEASTERN MORGAN...SOUTHEASTERN MADISON AND
SOUTHWESTERN JACKSON COUNTIES UNTIL 1030 AM CST...

AT 938 AM CST...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR
ARAB...MOVING NORTHEAST AT 45 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SCOTTSBORO...GUNTERSVILLE...ARAB...GRANT...SECTION...WOODVILLE...
BAILEYTON...PLEASANT GROVES...LANGSTON AND UNION GROVE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LOCALLY HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY
LEAD TO MINOR FLOODING ON ROADS AND IN LOW LYING AREAS. DO NOT DRIVE
YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3447 8603 3447 8606 3442 8611 3423 8642
      3426 8644 3426 8649 3425 8650 3425 8652
      3423 8652 3420 8655 3421 8656 3431 8671
      3478 8616 3455 8591
TIME...MOT...LOC 1538Z 231DEG 39KT 3429 8658

STUMPF

Local storm report, Dec 25, 10:05 AM CST, 1 hour 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1005 AM CST FRI DEC 25 2015

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

0930 AM     FLOOD            4 NNE ARAB              34.36N 86.46W
12/25/2015                   MARSHALL           AL   EMERGENCY MNGR

            INTERSECTION OF GLENDALE ROAD AT EDDY SCANT CITY ROAD IS
            FLOODED AND CLOSED.

0945 AM     FLOOD            5 E MOULTON             34.49N 87.20W
12/25/2015                   LAWRENCE           AL   EMERGENCY MNGR

            WATER RESCUE FROM A TRAILER ALONG COUNTY ROAD 220.

0945 AM     FLOOD            HARTSELLE               34.44N 86.94W
12/25/2015                   MORGAN             AL   PUBLIC

            WATER COVERING YARDS AND MOVING INTO HOMES

&&

BCC

Local storm report, Dec 25, 10:18 AM CST, 1 hour 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1018 AM CST FRI DEC 25 2015

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

0945 AM     FLOOD            3 S FRENCH MILL         34.73N 86.88W
12/25/2015                   LIMESTONE          AL   COUNTY OFFICIAL

            INTERSECTION OF MOORESVILLE RD AND BROWNSFERRY RD FLOODED
            AND IMPASSABLE. RELAYED FROM COUNTY SOCIAL MEDIA.

&&

BCC

Local storm report, Dec 25, 11:05 AM CST, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1105 AM CST FRI DEC 25 2015

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

1029 AM     TSTM WND DMG     5 ESE HENAGAR           34.61N 85.66W
12/25/2015                   DEKALB             AL   EMERGENCY MNGR

            SEVERAL TREES DOWN ACROSS AL 117 NEAR THE INTERSECTION
            WITH AL 40.

&&

BCC

Local storm report, Dec 25, 11:21 AM CST, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1121 AM CST FRI DEC 25 2015

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

1055 AM     FLOOD            SCOTTSBORO              34.67N 86.03W
12/25/2015                   JACKSON            AL   EMERGENCY MNGR

            WATER COVERING MANY ROADS IN THE EASTERN PORTION OF THE
            COUNTY. SEVERAL ROADS HAVE BEEN BARRICADED.

1055 AM     FLOOD            1 E GRANT               34.53N 86.23W
12/25/2015                   MARSHALL           AL   EMERGENCY MNGR

            WATER RESCUES ALONG SWEARENGIN ROAD IN GRANT.

1055 AM     FLOOD            ARAB                    34.32N 86.50W
12/25/2015                   MARSHALL           AL   EMERGENCY MNGR

            SMALL STREAMS OVERFLOWING THEIR BANK AND COVERING
            NUMEROUS ROADS IN AND AROUND ARAB.

1100 AM     FLOOD            DECATUR                 34.61N 86.98W
12/25/2015                   MORGAN             AL   EMERGENCY MNGR

            MANY ROADS IN DECATUR AND IN HARTSELLE IMPASSIBLE DUE TO
            WATER COVERING THE ROADWAYS.

&&

JCHACE

Local storm report, Dec 25, 11:36 AM CST, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1136 AM CST FRI DEC 25 2015

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

1035 AM     FLOOD            3 NNW WINCHESTER        35.22N 86.13W
12/25/2015                   FRANKLIN           TN   PUBLIC

            8 INCHES OF WATER COVER OLD ESTILL SPRINGS ROAD NEAR
            DECHERD BLVD.

1035 AM     FLOOD            2 S DECATUR             34.57N 86.98W
12/25/2015                   MORGAN             AL   EMERGENCY MNGR

            AN APARTMENT COMPLEX ALONG CENTRAL PARKWAY WAS BEGINNING
            TO FLOOD.

&&

JCHACE

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 24, 8:40 PM CST	River Flood Warning	HUN	Madison	58 hr
Dec 24, 8:43 PM CST	River Flood Warning	HUN	Jackson, Madison, Marshall	5 days
Dec 24, 8:44 PM CST	River Flood Warning	HUN	Lawrence	4 days
Dec 25, 5:02 AM CST	Special Weather Statement	HUN	Marshall	43 min
Dec 25, 5:28 AM CST	Special Weather Statement	HUN	Cullman	32 min
Dec 25, 6:23 AM CST	Special Weather Statement	HUN	Marshall	52 min
Dec 25, 7:26 AM CST	Special Weather Statement	HUN	Jackson	34 min
Dec 25, 7:55 AM CST	Special Weather Statement	HUN	Franklin	50 min
Dec 25, 8:00 AM CST	Areal Flood Warning	HUN	Lauderdale, Limestone, Madison	6 hr
Dec 25, 8:02 AM CST	Special Weather Statement	HUN	Madison	43 min
Dec 25, 8:18 AM CST	Areal Flood Warning	HUN	Cullman, Marshall, Morgan	6 hr
Dec 25, 8:45 AM CST	Areal Flood Warning	HUN	Jackson, Madison, Marshall	6 hr
Dec 25, 8:46 AM CST	Special Weather Statement	HUN	Jackson	29 min
Dec 25, 8:54 AM CST	Special Weather Statement	HUN	Lawrence, Limestone, Madison, Morgan	66 min
Dec 25, 8:55 AM CST	Areal Flood Warning	HUN	Franklin, Lawrence, Morgan	6 hr
Dec 25, 9:12 AM CST	Special Weather Statement	HUN	Jackson	63 min
Dec 25, 9:24 AM CST	River Flood Warning	HUN	Madison	33 hr
Dec 25, 9:38 AM CST	Special Weather Statement	HUN	Marshall	52 min
Dec 25, 9:48 AM CST	Flash Flood Warning	HUN	Lawrence, Limestone, Madison, Morgan	6 hr
Dec 25, 9:55 AM CST	Areal Flood Warning	HUN	DeKalb, Jackson, Marshall	6 hr
Dec 25, 10:18 AM CST	Severe Thunderstorm Warning	HUN	DeKalb	27 min
Dec 25, 10:23 AM CST	Areal Flood Warning	HUN	Colbert, Franklin, Lauderdale, Lawrence	6 hr
Dec 25, 10:51 AM CST	Flash Flood Warning	HUN	DeKalb, Jackson, Marshall	4 hr
Dec 25, 10:58 AM CST	Severe Thunderstorm Warning	HUN	DeKalb, Marshall	32 min
Dec 25, 12:30 PM CST	Flash Flood Warning	HUN	Colbert, Franklin, Lawrence	6 hr
Dec 25, 1:00 PM CST	River Flood Warning	HUN	Colbert, Lauderdale	10 days
Dec 25, 1:00 PM CST	River Flood Warning	HUN	Colbert, Lauderdale, Limestone, Morgan	7 days
Dec 25, 1:21 PM CST	River Flood Warning	HUN	Madison, Marshall, Morgan	6 days
Dec 25, 1:29 PM CST	Flash Flood Warning	HUN	Jackson, Madison, Marshall, Morgan	6 hr
Dec 25, 1:56 PM CST	Areal Flood Warning	HUN	Colbert, Jackson, Lauderdale, Lawrence, Limestone, Madison	6 hr
Dec 25, 2:34 PM CST	Flash Flood Warning	HUN	DeKalb, Jackson, Marshall	6 hr
Dec 25, 3:45 PM CST	Flash Flood Warning	HUN	Cullman	5 hr
Dec 25, 4:26 PM CST	Areal Flood Warning	HUN	Colbert, Franklin, Lawrence, Limestone, Madison, Morgan	25 hr
Dec 25, 9:54 AM CST	River Flood Warning	HUN	Franklin, Lincoln	43 hr

Nearby

Flash Flood Warnings in Alabama, 2015 Every flash flood 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; radar from the NEXRAD Level II archive.