Alert archive / Alabama / Tornado Warnings in 2007

Tornado Warning 2, NWS Huntsville, AL

March 1, 2007Colbert County, Alabama

NWS Huntsville, AL issued this tornado warning at Mar 1, 2007, 11:01 AM CST for Colbert County, Alabama. It was in force for 29 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: Mar 1, 2007, 11:01 AM CST (17:01 UTC)
Expired: Mar 1, 2007, 11:30 AM CST
In force: 29 min
Issued by: NWS Huntsville, AL
Area: Counties, with a storm outline in the text

County Colbert County, AL

The radar

The Columbus AFB radar (KGWX), 96 km from the middle of the area, began a volume at 17:02 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 1, 7:28 AM CST	Tornado Watch PDS	SPC	12 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 5.0 hours before the alert went out and 176 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: 1164 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 619 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 244 m²/s²
0-3 km storm-relative helicity: 241 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 6.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS54 KHUN 011701
TORHUN
ALC033-011730-
/O.NEW.KHUN.TO.W.0002.070301T1701Z-070301T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1101 AM CST THU MAR 1 2007

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  COLBERT COUNTY IN NORTHWEST ALABAMA

* UNTIL 1130 AM CST

* AT 1058 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 18 MILES
  SOUTHWEST OF CHEROKEE...MOVING NORTHEAST AT 50 MPH.

* LOCATIONS NEAR THE PATH OF THIS TORNADO INCLUDE...
  CHEROKEE.
  MYNOT.
  MOUNT HESTER.
  THE NATCHEZ TRACE PARKWAY.

THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING WHICH
WAS IN EFFECT FOR THE SAME AREA.

THIS STORM SHOWS STRONG ROTATION AND MAY PRODUCE A TORNADO AT ANY
TIME. DO NOT WAIT...GO TO A SAFE PLACE NOW PUT AS MANY WALLS AS
POSSIBLE BETWEEN YOU AND THE STORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST THURSDAY EVENING
FOR NORTHERN ALABAMA AND TENNESSEE.

LAT...LON 3478 8811 3457 8814 3457 8800 3474 8780
      3489 8798

$$

BCC

2 follow-up statements

000 
WWUS54 KHUN 011719
SVSHUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1115 AM CST THU MAR 1 2007

ALC077-011730-
/O.CON.KHUN.TO.W.0001.000000T0000Z-070301T1730Z/
LAUDERDALE AL-
1115 AM CST THU MAR 1 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 AM CST FOR
LAUDERDALE COUNTY...

AT 1115 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO. THE TORNADO WAS LOCATED WEST OF ZIP CITY NEAR 
THE NATCHEZ TRACE. AT 1100 AM...SPOTTERS REPORTED DAMAGE TO A HOME 
NEAR HIGHWAY 20 WEST OF THE NATCHEZ TRACE PARKWAY...AND SPOTTERS 
ALSO REPORTED A TORNADO TOUCHDOWN IN THIS GENERAL AREA.

IN ADDITION...ANOTHER STORM SHOWING STRONG ROTATION WAS MOVING 
NORTHWARD ACROSS COLBERT COUNTY. THIS STORM WILL IMPACT WESTERN 
PORTIONS OF LAUDERDALE COUNTY BY 1130 AM.

IF YOU ARE IN THE PATH OF THESE STORMS...MOVE INDOORS AND TO THE 
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF 
DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

LAT...LON 3487 8797 3476 8785 3501 8752 3501 8789

$$

CBD

000 
WWUS54 KHUN 011730
SVSHUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1129 AM CST THU MAR 1 2007

ALC033-011739-
/O.EXP.KHUN.TO.W.0002.000000T0000Z-070301T1730Z/
COLBERT AL-
1129 AM CST THU MAR 1 2007

...THE TORNADO WARNING FOR COLBERT COUNTY HAS BEEN ALLOWED TO
EXPIRE...

AT 1129 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THE THUNDERSTORM THAT PROMPTED THE TORNADO WARNING HAD EXITED
COLBERT COUNTY. THEREFORE...THE TORNADO WARNING HAS BEEN ALLOWED TO
EXPIRE.

HEAVY RAIN...SMALL HAIL...GUSTY WINDS...AND FREQUENT LIGHTNING ARE 
STILL POSSIBLE FROM A CLUSTER OF STRONG THUNDERSTORMS EXTENDING FROM 
BARTON TO MYNOT. STAY INDOORS UNTIL THE STORM HAS PASSED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST THURSDAY EVENING 
FOR COLBERT COUNTY.

LAT...LON 3478 8811 3457 8814 3457 8800 3474 8780
      3489 8798

$$

CBD

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 1, 10:41 AM CST	Severe Thunderstorm Warning	HUN	Colbert, Lauderdale	49 min
Mar 1, 10:54 AM CST	Tornado Warning	HUN	Lauderdale	36 min
Mar 1, 11:05 AM CST	Flash Flood Warning	HUN	Colbert, Lauderdale	4 hr
Mar 1, 11:28 AM CST	Tornado Warning	HUN	Lauderdale	32 min
Mar 1, 11:55 AM CST	Severe Thunderstorm Warning	HUN	Franklin	35 min
Mar 1, 12:29 PM CST	Severe Thunderstorm Warning	HUN	Colbert	24 min
Mar 1, 3:39 PM CST	Tornado Warning	HUN	Cullman	33 min

Nearby

Tornado Warnings in Alabama, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.