Alert archive / Alabama / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 73, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at Jun 17, 2013, 12:44 PM CDT for DeKalb County, Alabama. It was in force for 31 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
- Jun 17, 2013, 12:44 PM CDT (17:44 UTC)
- Expired
- Jun 17, 2013, 1:15 PM CDT
- In force
- 31 min
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
County DeKalb County, AL
The radar
The Northeast Alabama radar (KHTX), 58 km from the middle of the area, began a volume at 17:46 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, 5.7 hours before the alert went out and 168 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.
- Mixed-layer CAPE
- 2029 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 590 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.4
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 Huntsville, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 17, 12:37 PM CDT, 7 minutes earlier.
Area forecast discussion, Jun 17, 12:37 PM CDT, 7 minutes before
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</html>Hazardous weather outlook, Jun 17, 4:35 AM CDT, 8 hours 9 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HUNTSVILLE AL 435 AM CDT MON JUN 17 2013 ALZ001>010-016-TNZ076-096-097-172000- LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- 435 AM CDT MON JUN 17 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS OF SOUTHERN MIDDLE TENNESSEE. .DAY ONE...TODAY AND TONIGHT... NUMEROUS THUNDERSTORMS WILL CONTINUE FOR MUCH OF TODAY AS PASSING UPPER DISTURBANCES CONTINUE TO IMPACT THE REGION. GUSTY WINDS UP TO 40 MPH AND BRIEF HEAVY RAINFALL REMAIN POSSIBLE IN A FEW OF THE STRONGER STORMS THAT MAY DEVELOP. THUNDERSTORMS ARE THEN EXPECTED TO BECOME MORE WIDESPREAD IN NATURE THIS EVENING...WITH MULTIPLE ROUNDS OF HEAVY RAINFALL POSSIBLE AS WELL. LOCALIZED FLOODING OF CREEKS AND LOW LYING AREAS MAY BECOME A CONCERN IF PERIODS OF LOCALLY HEAVY RAINFALL CONTINUE TO IMPACT THE SAME AREAS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... WIDESPREAD THUNDERSTORMS COUPLED WITH EPISODES OF BRIEF HEAVY RAINFALL ARE EXPECTED TO CONTINUE WELL INTO TUESDAY...IN RESPONSE TO UPPER WAVES CONTINUING TO MOVE EASTWARD ACROSS THE AREA. IN ADDITION TO STRONG GUSTY WINDS...LOCALIZED FLOODING OF CREEKS...STREAMS AND LOW LYING SPOTS REMAIN A CONCERN IN AREAS WHICH EXPERIENCE MULTIPLE ROUNDS OF HEAVY RAINFALL. A GRADUAL DECREASE IN THE INTENSITY AND COVERAGE OF THUNDERSTORMS IS THEN EXPECTED TUESDAY NIGHT AND WEDNESDAY AS A COLD FRONT MOVES SOUTHWARD INTO THE REGION AND WEAKENS. ISOLATED THUNDERSTORMS ARE AGAIN POSSIBLE FRIDAY AND SATURDAY AS ANOTHER UPPER DISTURBANCE APPROACHES FROM THE NORTHWEST. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS NOT ANTICIPATED AT THIS TIME. TIMELY REPORTS THOUGH OF ANY POSSIBLE FLOODING LATER TODAY OR TONIGHT ARE GREATLY APPRECIATED.
In the hours before
Special weather statement, Jun 17, 9:24 AM CDT, 3 hours 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
924 AM CDT MON JUN 17 2013
TNZ076-097-171515-
MOORE TN-FRANKLIN TN-
924 AM CDT MON JUN 17 2013
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MOORE AND NORTHERN
FRANKLIN COUNTIES UNTIL 1015 AM CDT...
AT 922 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM CHESTNUT
RIDGE TO MONTEAGLE...AND MOVING EAST AT 15 MPH.
WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
LYNCHBURG...WOODS RESERVOIR...TIMS FORD LAKE...ESTILL SPRINGS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAINFALL OCCURRING WITH THESE STORMS MAY LEAD TO MINOR FLOODING
ON ROADS AND IN LOW LYING AREAS. DO NOT DRIVE YOUR VEHICLE THROUGH
FLOODED ROADWAYS.
&&
LAT...LON 3539 8628 3538 8625 3537 8627 3534 8624
3533 8620 3536 8616 3534 8603 3531 8600
3529 8592 3526 8590 3529 8647 3531 8652
3534 8654 3536 8652 3536 8649 3533 8646
3532 8642 3535 8641 3536 8633 3541 8626
TIME...MOT...LOC 1419Z 272DEG 15KT 3536 8654 3533 8593
BCCThe office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 7:11 PM CDT | Special Weather Statement | HUN | Jackson | 34 min |
| Jun 16, 7:18 PM CDT | Special Weather Statement | HUN | Lawrence | 27 min |
| Jun 16, 7:22 PM CDT | Special Weather Statement | HUN | Marshall | 38 min |
| Jun 16, 8:01 PM CDT | Special Weather Statement | HUN | DeKalb | 44 min |
| Jun 17, 12:50 PM CDT | Special Weather Statement | HUN | Cullman | 40 min |
| Jun 17, 12:59 PM CDT | Special Weather Statement | HUN | Limestone, Morgan | 46 min |
| Jun 17, 1:18 PM CDT | Severe Thunderstorm Warning | HUN | Limestone | 27 min |
| Jun 17, 1:24 PM CDT | Severe Thunderstorm Warning | HUN | Limestone, Madison | 36 min |
| Jun 17, 1:48 PM CDT | Special Weather Statement | HUN | Marshall | 42 min |
| Jun 17, 2:00 PM CDT | Special Weather Statement | HUN | Madison | 45 min |
| Jun 17, 2:26 PM CDT | Special Weather Statement | HUN | Jackson | 34 min |
| Jun 17, 3:05 PM CDT | Special Weather Statement | HUN | Jackson | 25 min |
| Jun 17, 5:40 PM CDT | Special Weather Statement | HUN | Lawrence | 50 min |
| Jun 17, 6:58 PM CDT | Special Weather Statement | HUN | Franklin | 32 min |
| Jun 17, 6:07 AM CDT | Special Weather Statement | HUN | Moore | 38 min |
| Jun 17, 9:24 AM CDT | Special Weather Statement | HUN | Moore | 51 min |
| Jun 17, 2:40 PM CDT | Special Weather Statement | HUN | Lincoln, Moore | 35 min |
| Jun 17, 3:15 PM CDT | Special Weather Statement | HUN | Franklin, Moore | 45 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2013Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.