Alert archive / Alabama / Tornado Warnings in 1997

Tornado Warning 145, NWS Birmingham, AL

October 26, 1997Jefferson County, Alabama

NWS Birmingham, AL issued this tornado warning at Oct 26, 1997, 1:42 AM CDT for Jefferson County, Alabama. It was in force for 33 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
Oct 26, 1997, 1:42 AM CDT (06:42 UTC)
Expired
Oct 26, 1997, 1:15 AM CST
In force
33 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Jefferson County, AL

The watch it was issued in

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

IssuedProductOfficeLasted
Oct 26, 12:00 AM CDTTornado WatchSPC6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 6.7 hours before the alert went out and 43 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-pSkew-T log-p diagram, Birmingham, AL at 00:00Z on 1997-10-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 925 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 1997-10-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 245 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
925 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
511 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
245 m²/s²
0-3 km storm-relative helicity
269 m²/s²
Significant tornado parameter
1.4
Supercell composite
7.5

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 25, 7:03 PM CDTTornado WarningBMXLawrence57 min
Oct 25, 7:33 PM CDTSevere Thunderstorm WarningBMXLimestone57 min
Oct 25, 7:44 PM CDTTornado WarningBMXMorgan61 min
Oct 25, 8:05 PM CDTTornado WarningBMXMadison55 min
Oct 25, 8:52 PM CDTTornado WarningBMXMontgomery48 min
Oct 25, 9:34 PM CDTSevere Thunderstorm WarningBMXBullock36 min
Oct 25, 11:28 PM CDTTornado WarningBMXMadison47 min
Oct 26, 12:38 AM CDTTornado WarningBMXBlount, Jefferson32 min
Oct 26, 1:49 AM CDTTornado WarningBMXSt. Clair66 min
Oct 26, 1:08 AM CSTTornado WarningBMXCalhoun, Etowah47 min
Oct 26, 3:09 AM CSTTornado WarningBMXCherokee46 min
Oct 26, 3:17 AM CSTSevere Thunderstorm WarningBMXMontgomery63 min
Oct 26, 3:50 AM CSTTornado WarningBMXElmore45 min
Oct 26, 3:52 AM CSTTornado WarningBMXMontgomery33 min
Oct 26, 4:04 AM CSTFlash Flood WarningBMXCalhoun, Etowah, St. Clair4 hr
Oct 26, 4:25 AM CSTFlash Flood WarningBMXCherokee5 hr
Oct 26, 4:28 AM CSTTornado WarningBMXMacon52 min
Oct 26, 4:28 AM CSTTornado WarningBMXMacon47 min
Oct 26, 4:45 AM CSTTornado WarningBMXLowndes50 min
Oct 26, 4:47 AM CSTTornado WarningBMXRussell48 min
Oct 26, 4:57 AM CSTTornado WarningBMXMontgomery48 min
Oct 26, 5:01 AM CSTTornado WarningBMXLee49 min

Nearby

Tornado Warnings in Alabama, 1997Every tornado warning in 1997Tornadoes in 1997

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.