Alert archive / Tennessee / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 87, NWS Nashville, TN

April 19, 1999Putnam County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Apr 19, 1999, 9:19 PM CDT for Putnam County, Tennessee. It was in force for 31 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 19, 1999, 9:19 PM CDT (02:19 UTC)
Expired
Apr 19, 1999, 9:50 PM CDT
In force
31 min
Issued by
NWS Nashville, TN
Area
Whole counties

County Putnam County, TN

What was reported inside it

TimeReportWhereRemark
Apr 19, 9:21 PM CDTHail 1.75Cookeville, TNSpotter reported golf ball size hail at Buck Mountain.
Apr 19, 9:25 PM CDTHail 1.75Monterey, TNSpotter reported golf ball size hail.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 2.3 hours before the alert went out and 321 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, Peachtre/Fal Fld, GA at 00:00Z on 1999-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Peachtre/Fal Fld, GA at 00:00Z on 1999-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2458 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
223 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Nashville, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 19, 7:28 PM CDTSevere Thunderstorm WarningOHXSumner32 min
Apr 19, 7:49 PM CDTSevere Thunderstorm WarningOHXTrousdale31 min
Apr 19, 8:11 PM CDTSevere Thunderstorm WarningOHXSmith29 min
Apr 19, 8:39 PM CDTSevere Thunderstorm WarningOHXSmith16 min
Apr 19, 8:49 PM CDTSevere Thunderstorm WarningOHXPutnam31 min
Apr 19, 9:36 PM CDTSevere Thunderstorm WarningOHXMontgomery, Robertson39 min
Apr 19, 10:08 PM CDTSevere Thunderstorm WarningOHXCumberland32 min
Apr 19, 10:13 PM CDTSevere Thunderstorm WarningOHXCheatham, Davidson47 min
Apr 19, 10:32 PM CDTSevere Thunderstorm WarningOHXRobertson, Sumner38 min
Apr 19, 10:49 PM CDTSevere Thunderstorm WarningOHXSmith, Wilson36 min
Apr 19, 11:00 PM CDTSevere Thunderstorm WarningOHXDavidson35 min
Apr 19, 11:15 PM CDTSevere Thunderstorm WarningOHXVan Buren, Warren30 min
Apr 19, 11:15 PM CDTSevere Thunderstorm WarningOHXCannon30 min
Apr 19, 11:26 PM CDTSevere Thunderstorm WarningOHXPutnam34 min
Apr 19, 11:45 PM CDTSevere Thunderstorm WarningOHXVan Buren, Warren30 min
Apr 20, 12:22 AM CDTSevere Thunderstorm WarningOHXGrundy23 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1999Every severe thunderstorm warning in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.