Alert archive / Tennessee / Flash Flood Warnings in 1998

Flash Flood Warning 94, NWS Morristown, TN

June 10, 1998Cumberland County, Tennessee

NWS Morristown, TN issued this flash flood warning at Jun 10, 1998, 11:02 AM CDT for Cumberland County, Tennessee. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 10, 1998, 11:02 AM CDT (16:02 UTC)
Expired: Jun 10, 1998, 2:05 PM CDT
In force: 3 hr
Issued by: NWS Morristown, TN
Area: Whole counties

County Cumberland County, TN

The radar

The Nashville radar (KOHX), 144 km from the middle of the area, began a volume at 16:05 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 12:00Z, 4.0 hours before the alert went out and 145 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: 3323 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 782 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 101 m²/s²
0-3 km storm-relative helicity: 96 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 8.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMRX 101602
FFWMRX
TNC035-101905-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
1202 PM EDT (1102 AM CDT) WED JUN 10 1998

THE NATIONAL WEATHER SERVICE IN KNOXVILLE/TRI-CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CUMBERLAND COUNTY IN EASTERN TENNESSEE

* UNTIL 205 PM CDT (305 PM EDT)

* AT 1100 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THAT CLUSTERS OF THUNDERSTORMS WITH VERY HEAVY RAIN WERE LOCATED
  OVER SOUTHERN CUMBERLAND COUNTY... MOVING SLOWLY NORTHEAST.

* EXCESSIVE RAINFALL AT THE RATE OF 1.5 INCHES PER HOUR WILL PRODUCE
  FLOODING ACROSS SOUTHERN HALF OF CUMBERLAND COUNTY THROUGH 205 PM
  CDT (305 PM EDT).

DZON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Jun 10, 8:35 AM CDT, 2 hours 27 minutes earlier.

Area forecast discussion, Jun 10, 8:35 AM CDT, 2 hours 27 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
935 AM EDT WED JUN 10 1998

...ONCE AGAIN MAIN FORECAST CHALLANGES ARE PRECIP CHCS AND TEMPS...

CURRENT SURFACE ANALYSIS SHOWS THE WARM FRONT STRUGGLING TO MOVE NORTH
THROUGH THE MOUNTIANS.  FRONT CURRENTLY LYING ALONG A CHA TO CSV LINE
AND NORTH FROM THERE.  SOUTH AND WEST OF THIS FRONT VERY UNSTABLE
AIRMASS...WITH CAPES TO 3600 AND LIS TO -10...K VALUES AOB 40. SO SOME
OF THE SHOWERS AND THUDNERSTORMS COULD BECOME SEVERE AND PRODUCE
LOCALLY HEAVY RAIN.  RIDGING SURFACE AND ALOFT ALLOWING THE STORMS TO
MOVE SOUTHEAST THROUGH THE CWA.  NEW DEVELOPMENT BEING SEEN ALONG AN
OLD BOUNDARY SOUTHWEST KY...WHICH SHOULD HOLD TOGETHER GIVEN THE
AMOUNT OF MOISTURE AND WILL EVENTUALLY MAKE IT ACROSS THE STATE.  A
FEW CHANGES IN CURRENT ZONES NEEDED FOR WORDING.  ONGOING TEMP
FORECAST LOOKS GOOD...BUT MAY BE SLIGHTLY WARM GIVEN THE CLOUD COVER
AND SCATTERED THUNDERSTORMS.

RECOMMENDATIONS...

FOR CRW (SW VA COUNTIES)
.THIS AFTERNOON...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUDNERSTORMS.  HIGH 75 TO 80.  SOUTHWEST WIND 5 TO 10 MPH. CHANCE FOR
PRECIPITATION 40 PERCENT.

FOR MEM...
NE TN...
.THIS AFTERNOON...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGH 75 TO 80. SOUTHWEST WIND 10 TO 15 MPH. CHANCE FOR
PRECIPITATION 40 PERCENT.

PLATEAU AND CENTRAL EAST TN...
.THIS AFTERNOON...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGH NEAR 80. SOUTHWEST WIND 10 TO 15 MPH. CHANCE FOR
PRECIPITATION 30 PERCENT.

SE TN AND SMOKY MOUNTAINS...
.THIS AFTERNOON...MOSTLY CLOUDY WITH A GOOD CHANCE FOR SHOWERS AND
THUNDERSTORMS. HIGH NEAR 80 (SE) AND AROUND 75 (MNTS.). SOUTHWEST WIND
10 TO 15 MPH.  CHANCE FOR PRECIPITATION 50 PERCENT.

FOR RDU...
.THIS AFTERNOON...MOSTLY CLOUDY WITH A GOOD CHANCE FOR SHOWERS AND
THUNDERSTORMS. HIGH AROUND 80. CHANCE FOR PRECIPITATION 50 PERCENT.

THANKS...
PDK

In the hours before

Local storm report, Jun 10, 7:40 AM CDT, 3 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
840 AM EDT WED JUN 10 1998

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

250 AM     LEBANON                   VA   WIND DAMAGE
06/10/98   RUSSELL                        TREES REPORTED DOWN IN THE
                                          LEBANON AREA BY EMA

320 AM     IN GLADE SPRINGS          VA   0.75 INCH HAIL
06/10/98   WASHINGTON                     DIME SIZE HAIL REPORTED IN
                                          THE TOWN OF GLADE SPRINGS.
                                          REPORTED BY GLADE SPRINGS
                                          POLICE DEPARTMENT AND
                                          RECEIVED FROM THE SHERIFFS
                                          DISPATCH.

545 AM     LEBANON                   VA   WIND DAMAGE
06/10/98   RUSSELL                        NUMEROUS TREES DOWN IN
                                          LEBANON

The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 1:43 AM CDT	Severe Thunderstorm Warning	MRX	Campbell	47 min
Jun 10, 2:44 AM CDT	Severe Thunderstorm Warning	MRX	Johnson	36 min
Jun 10, 10:25 AM CDT	Severe Thunderstorm Warning	MRX	Cumberland	60 min
Jun 10, 10:54 AM CDT	Severe Thunderstorm Warning	MRX	Rhea	46 min
Jun 10, 11:27 AM CDT	Severe Thunderstorm Warning	MRX	Cumberland	63 min
Jun 10, 11:33 AM CDT	Severe Thunderstorm Warning	MRX	Hamilton	62 min
Jun 10, 11:52 AM CDT	Severe Thunderstorm Warning	MRX	Roane	48 min
Jun 10, 12:07 PM CDT	Severe Thunderstorm Warning	MRX	Bradley, Polk	33 min
Jun 10, 12:11 PM CDT	Severe Thunderstorm Warning	MRX	Meigs	34 min
Jun 10, 12:18 PM CDT	Severe Thunderstorm Warning	MRX	Monroe	62 min
Jun 10, 12:24 PM CDT	Severe Thunderstorm Warning	MRX	Loudon, McMinn	66 min
Jun 10, 12:24 PM CDT	Severe Thunderstorm Warning	MRX	Rhea	66 min
Jun 10, 12:33 PM CDT	Flash Flood Warning	MRX	Morgan, Roane	3 hr
Jun 10, 12:33 PM CDT	Flash Flood Warning	MRX	Meigs, Rhea	3 hr
Jun 10, 12:36 PM CDT	Severe Thunderstorm Warning	MRX	Blount	19 min
Jun 10, 12:38 PM CDT	Severe Thunderstorm Warning	MRX	Hamilton	62 min
Jun 10, 12:40 PM CDT	Severe Thunderstorm Warning	MRX	Bradley	65 min
Jun 10, 1:31 PM CDT	Tornado Warning	MRX	Bradley	64 min
Jun 10, 1:34 PM CDT	Severe Thunderstorm Warning	MRX	Hamilton	61 min
Jun 10, 1:34 PM CDT	Severe Thunderstorm Warning	MRX	Polk	61 min
Jun 10, 1:46 PM CDT	Flash Flood Warning	MRX	Cumberland	3 hr

Nearby

Flash Flood Warnings in Tennessee, 1998 Every flash flood warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.