Alert archive / Alabama / Special Weather Statements in 2012
Special Weather Statement, NWS Huntsville, AL
NWS Huntsville, AL issued this special weather statement at Aug 17, 2012, 1:07 AM CDT for Limestone County, Madison County, Morgan County, Alabama. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 17, 2012, 1:07 AM CDT (06:07 UTC)
- Expired
- Aug 17, 2012, 1:45 AM CDT
- In force
- 38 min
- Issued by
- NWS Huntsville, AL
Counties Limestone County, AL, Madison County, AL, Morgan County, AL
The radar
The Northeast Alabama radar (KHTX), 48 km from the middle of the area, began a volume at 06:08 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, 6.1 hours before the alert went out and 152 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
- 1468 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1539 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
921
WWUS84 KHUN 170607
SPSHUN
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
107 AM CDT FRI AUG 17 2012
ALZ004>008-170645-
MARSHALL AL-MADISON AL-MORGAN AL-LAWRENCE AL-LIMESTONE AL-
107 AM CDT FRI AUG 17 2012
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MARSHALL...
MADISON...MORGAN...NORTHEASTERN LAWRENCE AND LIMESTONE COUNTIES
UNTIL 145 AM CDT...
AT 104 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM HAZEL
GREEN TO ROGERSVILLE...AND MOVING SOUTH AT 30 MPH.
WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
HUNTSVILLE...DECATUR...MADISON...ATHENS...HARTSELLE...MOORES MILL...
MERIDIANVILLE...REDSTONE ARSENAL...HAZEL GREEN...HARVEST...NEW
HOPE...NEW MARKET...TRINITY...PRICEVILLE...FALKVILLE...OWENS
CROSSROADS...ARDMORE...FLINT CITY...GURLEY AND HILLSBORO.
LAT...LON 3499 8633 3490 8634 3487 8635 3485 8634
3481 8635 3477 8634 3474 8635 3473 8636
3463 8636 3460 8635 3433 8637 3439 8725
3479 8725 3482 8721 3499 8721
TIME...MOT...LOC 0604Z 8DEG 25KT 3498 8649 3490 8725
$$
CCCThe office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 8:29 PM CDT | Special Weather Statement | HUN | DeKalb | 46 min |
| Aug 17, 12:21 AM CDT | Severe Thunderstorm Warning | HUN | Jackson, Madison | 39 min |
| Aug 17, 12:50 AM CDT | Special Weather Statement | HUN | Colbert, Lauderdale | 40 min |
| Aug 17, 1:00 AM CDT | Severe Thunderstorm Warning | HUN | DeKalb, Jackson, Marshall | 45 min |
| Aug 17, 1:27 AM CDT | Special Weather Statement | HUN | Limestone | 33 min |
| Aug 17, 1:52 AM CDT | Special Weather Statement | HUN | Colbert, Franklin | 38 min |
| Aug 17, 2:29 AM CDT | Special Weather Statement | HUN | Lawrence | 46 min |
| Aug 17, 12:10 AM CDT | Special Weather Statement | HUN | Franklin, Lincoln, Moore | 35 min |
Nearby
Special Weather Statements in Alabama, 2012Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.