Alert archive / Alabama / Tornado Warnings in 2012
Tornado Warning 25, NWS Huntsville, AL
NWS Huntsville, AL issued this tornado warning at May 13, 2012, 6:21 PM CDT for Limestone County, Morgan County, Alabama. It was in force for 24 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 13, 2012, 6:21 PM CDT (23:21 UTC)
- Expired
- May 13, 2012, 6:45 PM CDT
- In force
- 24 min
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
Counties Limestone County, AL, Morgan County, AL
The radar
The Northeast Alabama radar (KHTX), 82 km from the middle of the area, began a volume at 23:21 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 13, 6:25 PM CDT | FUNNEL CLOUD | 2 Ne Decatur, AL | A UA-HUNTSVILLE RESEARCH METEOROLOGIST OBSERVED A BRIEF FUNNEL CLOUD LOOKING NORTH FROM THE BEE LINE HIGHWAY BRIDGE OVER THE TENNESSEE RIVER JUST NORTHEAST OF DECATUR. THE FUNNEL WAS ESTIMATED TO BE 0.5 TO 1.0 MILES NORTH OR NORTHWEST OF THE OBSERVERS LOCATION |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 11.4 hours before the alert went out and 160 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
- 367 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 515 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 168 m²/s²
- 0-3 km storm-relative helicity
- 215 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
067 WFUS54 KHUN 132321 TORHUN ALC083-103-132345- /O.NEW.KHUN.TO.W.0025.120513T2321Z-120513T2345Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE HUNTSVILLE AL 621 PM CDT SUN MAY 13 2012 THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN LIMESTONE COUNTY IN NORTH CENTRAL ALABAMA... NORTH CENTRAL MORGAN COUNTY IN NORTH CENTRAL ALABAMA... * UNTIL 645 PM CDT * AT 621 PM CDT...A TORNADO WAS REPORTED NEAR DECATUR...MOVING EAST AT 10 MPH. * LOCATIONS NEAR THE PATH OF THIS TORNADO INCLUDE... MOORESVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT USE HIGHWAY OVERPASSES FOR SHELTER. OVERPASSES DO NOT PROVIDE PROTECTION FROM TORNADIC WINDS. VEHICLES STOPPED UNDER BRIDGES BLOCK TRAFFIC AND PREVENT PEOPLE FROM GETTING OUT OF THE STORM'S PATH AND TO SHELTER. IF YOU CANNOT DRIVE AWAY FROM THE TORNADO...GET OUT OF YOUR VEHICLE AND LIE FLAT IN A DITCH AS A LAST RESORT. && LAT...LON 3464 8679 3450 8687 3461 8703 3467 8700 TIME...MOT...LOC 2321Z 290DEG 9KT 3462 8697 $$ CA
2 follow-up statements
507 WWUS54 KHUN 132331 SVSHUN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 631 PM CDT SUN MAY 13 2012 ALC083-103-132345- /O.CON.KHUN.TO.W.0025.000000T0000Z-120513T2345Z/ LIMESTONE AL-MORGAN AL- 631 PM CDT SUN MAY 13 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR NORTH CENTRAL MORGAN AND SOUTHEASTERN LIMESTONE COUNTIES... AT 626 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD. THIS WAS LOCATED NEAR DECATUR...MOVING EAST AT 10 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PRICEVILLE AND MOORESVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... METEOROLOGY STUDENTS FROM THE UNIVERSITY OF ALABAMA IN HUNTSVILLE REPORTED A WALL CLOUD AND ASSOCIATED FUNNEL CLOUD AT THE INTERSTATE 65/565 INTERCHANGE. IT WAS UNSURE IF THE FUNNEL REACHED THE GROUND AT THIS TIME. && LAT...LON 3464 8679 3450 8687 3461 8703 3467 8700 TIME...MOT...LOC 2329Z 290DEG 9KT 3461 8695 $$ CA
310 WWUS54 KHUN 132344 SVSHUN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 644 PM CDT SUN MAY 13 2012 ALC083-103-132354- /O.EXP.KHUN.TO.W.0025.000000T0000Z-120513T2345Z/ LIMESTONE AL-MORGAN AL- 644 PM CDT SUN MAY 13 2012 ...THE TORNADO WARNING FOR NORTH CENTRAL MORGAN AND SOUTHEASTERN LIMESTONE COUNTIES EXPIRES AT 645 PM CDT... WEATHER SERVICE DOPPLER RADAR INDICATES THE THUNDERSTORM THAT PROMPTED THE TORNADO WARNING HAS WEAKENED AND IS NO LONGER SEVERE. THEREFORE THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE. HEAVY RAIN...SMALL HAIL...GUSTY WINDS...AND FREQUENT LIGHTNING ARE STILL POSSIBLE FROM THIS THUNDERSTORM. STAY INDOORS UNTIL THE STORM HAS PASSED. LAT...LON 3464 8679 3450 8687 3461 8703 3467 8700 TIME...MOT...LOC 2344Z 290DEG 9KT 3460 8691 $$ CA
The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 4:14 PM CDT | Special Weather Statement | HUN | Morgan | 46 min |
| May 13, 4:26 PM CDT | Special Weather Statement | HUN | Limestone | 49 min |
| May 13, 5:15 PM CDT | Special Weather Statement | HUN | Limestone | 45 min |
| May 13, 5:29 PM CDT | Severe Thunderstorm Warning | HUN | Limestone, Morgan | 16 min |
| May 13, 5:41 PM CDT | Tornado Warning | HUN | Limestone | 19 min |
| May 13, 5:58 PM CDT | Special Weather Statement | HUN | Morgan | 47 min |
| May 13, 6:43 PM CDT | Special Weather Statement | HUN | Morgan | 47 min |
Nearby
Tornado Warnings in Alabama, 2012Every tornado warning in 2012Tornadoes in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.