Alert archive / Alabama / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 44, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at Apr 16, 2015, 5:41 AM CDT for Limestone County, Madison County, Alabama. It was in force for 34 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 16, 2015, 5:41 AM CDT (10:41 UTC)
- Expired
- Apr 16, 2015, 6:15 AM CDT
- In force
- 34 min
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Limestone County, AL, Madison County, AL
The radar
The Northeast Alabama radar (KHTX), 64 km from the middle of the area, began a volume at 10:43 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
Nashville Metro, TN (KBNA), launched 00:00Z, 10.7 hours before the alert went out and 150 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
- 698 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 863 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
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 Apr 16, 3:34 AM CDT, 2 hours 7 minutes earlier.
Area forecast discussion, Apr 16, 3:34 AM CDT, 2 hours 7 minutes before
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</html>Hazardous weather outlook, Apr 16, 5:28 AM CDT, 13 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HUNTSVILLE AL 528 AM CDT THU APR 16 2015 ALZ001>010-016-TNZ076-096-097-161800- LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- 528 AM CDT THU APR 16 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS OF SOUTHERN MIDDLE TENNESSEE. .DAY ONE...TODAY AND TONIGHT... SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE THE MORNING...AS AN UPPER LEVEL DISTURBANCE MOVES NORTHEAST ACROSS THE AREA. SOME OF THE STORMS MAY BE STRONG...WITH BRIEF WIND GUSTS UP TO 50 MPH AND SMALL HAIL. THE COVERAGE AND INTENSITY OF THUNDERSTORMS SHOULD DIMINISH BY THE AFTERNOON. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... SEVERAL ADDITIONAL DISTURBANCES WILL IMPACT THE TENNESSEE VALLEY LATE THIS WEEK AND THIS WEEKEND...WITH A CHANCE OF THUNDERSTORMS CONTINUING THROUGH MONDAY. ALTHOUGH A THREAT FOR STRONG TO MARGINALLY SEVERE STORMS WILL EXIST THROUGH THE PERIOD...SPECIFIC DETAILS ON WHEN THIS WILL OCCUR ARE UNCLEAR AT THIS TIME RANGE. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS NOT ANTICIPATED AT THIS TIME.
In the hours before
Special weather statement, Apr 16, 4:06 AM CDT, 1 hour 35 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
406 AM CDT THU APR 16 2015
ALZ005-007-160945-
MORGAN AL-LIMESTONE AL-
406 AM CDT THU APR 16 2015
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MORGAN AND
SOUTHEASTERN LIMESTONE COUNTIES UNTIL 445 AM CDT...
AT 406 AM CDT...DOPPLER RADAR INDICATED A COUPLE OF STRONG
THUNDERSTORMS IN THE ADVISORY AREA. ONE CELL WAS LOCATED NEAR
TRINITY...OR NEAR DECATUR...WITH THE OTHER CELL NEAR ATHENS. BOTH
STORMS WERE MOVING NORTHEAST AT 25 MPH.
PEA SIZE HAIL AND WIND GUSTS OF 30 TO 40 MPH WILL BE POSSIBLE WITH
THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
DECATUR...MADISON...ATHENS...HARTSELLE...PRICEVILLE...TRINITY...
TANNER...HARVEST...MOORESVILLE AND BASHAM.
THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.
LAT...LON 3486 8678 3465 8679 3442 8702 3449 8711
3467 8711 3487 8694
TIME...MOT...LOC 0904Z 221DEG 22KT 3455 8704
70/DDSpecial weather statement, Apr 16, 4:42 AM CDT, 59 minutes before
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</html>Special weather statement, Apr 16, 4:50 AM CDT, 51 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
450 AM CDT THU APR 16 2015
ALZ007-016-161015-
CULLMAN AL-MORGAN AL-
450 AM CDT THU APR 16 2015
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CULLMAN AND
SOUTHWESTERN MORGAN COUNTIES UNTIL 515 AM CDT...
AT 450 AM CDT...DOPPLER RADAR INDICATED SEVERAL CLUSTERS OF STRONG
THUNDERSTORMS IN THE ADVISORY AREA. THE STRONGEST CELL WAS LOCATED
NEAR SARDIS...OR 9 MILES NORTHWEST OF CULLMAN. ALL STORMS WERE
MOVING NORTHEAST AT 30 MPH.
PENNY SIZE HAIL AND WIND GUSTS OF 30 TO 40 MPH WILL BE POSSIBLE WITH
THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
DECATUR...HARTSELLE...PRICEVILLE...FALKVILLE...SARDIS...BALDWIN...
SOMERVILLE...WEST POINT...JONES CHAPEL AND BATTLEGROUND.
THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO
AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.
LAT...LON 3411 8699 3421 8711 3424 8711 3453 8692
3444 8669
TIME...MOT...LOC 0948Z 213DEG 25KT 3424 8699
70/DDSpecial weather statement, Apr 16, 5:13 AM CDT, 28 minutes before
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</html>Special weather statement, Apr 16, 5:16 AM CDT, 25 minutes before
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</html>Special weather statement, Apr 16, 5:24 AM CDT, 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
524 AM CDT THU APR 16 2015
ALZ006-161115-
MADISON AL-
524 AM CDT THU APR 16 2015
...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL MADISON COUNTY UNTIL
615 AM CDT...
AT 524 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
MADISON...MOVING NORTHEAST AT 30 MPH.
PEA SIZE HAIL AND WIND GUSTS OF 45 TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.
LOCATIONS IMPACTED INCLUDE...
HUNTSVILLE...MADISON...REDSTONE ARSENAL...TRIANA...MARSHALL SPACE
FLIGHT CENTER AND UNIVERSITY OF ALABAMA IN HUNTSVILLE.
THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.
LAT...LON 3485 8668 3468 8655 3458 8671 3459 8671
3458 8673 3473 8679
TIME...MOT...LOC 1024Z 223DEG 25KT 3470 8671
70/DDThe office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 3:37 AM CDT | Special Weather Statement | HUN | Franklin | 23 min |
| Apr 16, 3:54 AM CDT | Special Weather Statement | HUN | Colbert | 36 min |
| Apr 16, 4:06 AM CDT | Special Weather Statement | HUN | Limestone | 39 min |
| Apr 16, 4:42 AM CDT | Special Weather Statement | HUN | Limestone | 33 min |
| Apr 16, 4:50 AM CDT | Special Weather Statement | HUN | Morgan | 25 min |
| Apr 16, 5:13 AM CDT | Special Weather Statement | HUN | Madison | 32 min |
| Apr 16, 5:16 AM CDT | Special Weather Statement | HUN | Morgan | 29 min |
| Apr 16, 5:24 AM CDT | Special Weather Statement | HUN | Madison | 51 min |
| Apr 16, 6:16 AM CDT | Special Weather Statement | HUN | Madison | 44 min |
| Apr 16, 6:56 AM CDT | Special Weather Statement | HUN | Madison | 49 min |
| Apr 16, 7:33 AM CDT | Areal Flood Warning | HUN | Limestone, Madison | 8 hr |
| Apr 16, 7:52 AM CDT | Special Weather Statement | HUN | Jackson | 23 min |
| Apr 16, 7:56 AM CDT | Special Weather Statement | HUN | Madison | 49 min |
| Apr 16, 8:22 AM CDT | Special Weather Statement | HUN | Jackson | 38 min |
| Apr 16, 8:30 AM CDT | Special Weather Statement | HUN | Madison | 45 min |
| Apr 16, 8:45 AM CDT | Special Weather Statement | HUN | Jackson | 45 min |
| Apr 16, 8:59 AM CDT | Areal Flood Warning | HUN | Jackson, Madison | 3 hr |
| Apr 16, 1:50 PM CDT | Areal Flood Warning | HUN | Cullman | 3 hr |
| Apr 16, 3:32 PM CDT | Areal Flood Warning | HUN | Limestone, Madison | 3 hr |
| Apr 16, 6:48 AM CDT | Special Weather Statement | HUN | Franklin | 27 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2015Every 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; radar from the NEXRAD Level II archive.