Alert archive / Tennessee / Tornado Warnings in 1998
Tornado Warning 64, NWS Morristown, TN
NWS Morristown, TN issued this tornado warning at Jun 9, 1998, 6:21 PM EDT for Hamilton County, Tennessee. It was in force for 64 min. 1 report 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
- Jun 9, 1998, 6:21 PM EDT (22:21 UTC)
- Expired
- Jun 9, 1998, 7:25 PM EDT
- In force
- 64 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
County Hamilton County, TN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 9, 6:40 PM EDT | Thunderstorm Wind | Chattanooga, TN |
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
Nashville Metro, TN (KBNA), launched 12:00Z, 10.4 hours before the alert went out and 167 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 658 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 585 m²/s²
- 0-3 km storm-relative helicity
- 571 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
432 WFUS01 KMRX 092222 RRA TORMRX TNC065-092325- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 621 PM EDT TUE JUN 9 1998 THE NATIONAL WEATHER SERVICE IN KNOXVILLE/TRI-CITIES HAS ISSUED A * TORNADO WARNING FOR... HAMILTON COUNTY IN EASTERN TENNESSEE * UNTIL 725 PM EDT * AT 619 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED TWO TORNADOES 7 MILES WEST OF CHATTANOOGA AND 6 MILES WEST OF SALE CREEK... MOVING EAST SOUTHEAST AT 25 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... CHATTANOOGA METRO AREA AT 645 PM EDT SODDY DAISY AT 7 PM EDT ABANDON MOBILE HOMES GO IN A NEARBY STURDY BUILDING. AS A LAST RESORT LIE FLAT IN A DITCH AND COVER YOUR HEAD. DH/HSA
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Morristown, TN wrote its last area forecast discussion before this tornado warning went out at Jun 9, 2:03 PM EDT, 4 hours 18 minutes earlier.
Area forecast discussion, Jun 9, 2:03 PM EDT, 4 hours 18 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 203 PM EDT TUE JUN 9 1998 ...MAIN FCST CHALLENGES ARE PRECIP CHANCES AND CLOUD COVER... MIDNIGHT SHIFT HAD THE RIGHT IDEA FOR POPS TONITE ACROSS THE CWA AS NEXT S/W MOVES INTO THE AREA WITH A VERY SATURATED ATMOSPHERE. ALL THREE MODELS SHOW THE SAME S/W JUST POSITION THEM A LITTLE A DIFFERENTLY. NGM VERIFIED A LITTLE FAR NORTH AND THE ETA A LITTLE FAR SOUTH...SO AM GOING W/ A COMPRISE OF THE TWO. KMRX/KHTX SHOWING MAIN ORGANIZED PRECIP TO CONTINUING TO PUSH EAST AND SHOULD BE OUT OF THE CWA AROUND 6 PM THIS EVENING. W/ SFC WNDS IN THE VALLEY TURNING TO THE NE...WARM FRONTAL PASSAGE DOES NOT LOOK LIKELY TONIGHT...AREA SHOWING GOOD CONVERGENCE ACROSS CENTRAL EAST TN AND PLATEAU...WHERE CIGS HAVE FALLEN TO NEAR 500 FEET. 1000-500MB RH FIELDS SHOW MOISTURE HANGING IN THE AREA FOR THE NEXT SEVERAL DAYS SO WOULD LIKE TO GO WITH SOME POPS THROUGH THE ENTIRE FORECAST PERIOD. ALL MODELS SHOW A RETURN OF NW FLOW OVER CWA...AND W/ WEAK IMPULSES MOVING OVER THE TOP...THERE IS A CHANCE FOR SHRA/TSRA THROUGH THE NEXT 48 HOURS. THICKNESS PATTERNS INDICATE ANYTHING THAT FORMS IN MO..IA..IL..IN SHOULD TRACK TO THE SOUTHEAST. RECOMMENDATIONS... .TONIGHT...CLOUDY WITH A CHANCE FOR SHOWERS AFTER MIDNIGHT. LOW NEAR 60. LIGHT AND VARIABLE WIND. CHANCE FOR PRECIPITATION 30 PERCENT. .WEDNESDAY...CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS 75 TO 80. SOUTH WIND 10 TO 15 MPH. CHANCE FOR PRECIPITATION 30 PERCENT. .WEDNESDAY NIGHT...CONTINUED CLOUDY WITH A GOOD CHANCE FOR SHOWERS AND THUNDERSTORMS. LOWS IN THE MIDDLE 60S. LIGHT AND VARIABLE WIND. CHANCE FOR PRECIPITATION 50 PERCENT. .THURSDAY...CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS 75 TO 80. SOUTH WIND 10 TO 15 MPH. PDK
Nearby
Tornado Warnings in Tennessee, 1998Every tornado warning in 1998Tornadoes in 1998
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.