Alert archive / Virginia / Flash Flood Warnings in 1998

Flash Flood Warning 93, NWS Morristown, TN

June 10, 1998Russell County, Washington County, Virginia

NWS Morristown, TN issued this flash flood warning at Jun 10, 1998, 9:19 AM EDT for Russell County, Washington County, Virginia. 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, 9:19 AM EDT (13:19 UTC)
Expired: Jun 10, 1998, 11:50 AM EDT
In force: 3 hr
Issued by: NWS Morristown, TN
Area: Whole counties

Counties Russell County, VA, Washington County, VA

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 1.3 hours before the alert went out and 208 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: 87 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 459 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: -45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMRX 101319
FFWMRX
VAC167-191-101550-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
919 AM EDT WED JUN 10 1998

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

* FLASH FLOOD WARNING FOR...
  RUSSELL COUNTY IN SOUTHWESTERN VIRGINIA
  WASHINGTON COUNTY IN SOUTHWESTERN VIRGINIA

* UNTIL 1150 AM EDT

* AT 917 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THAT CLUSTERS OF THUNDERSTORMS WITH VERY HEAVY RAIN WERE LOCATED
  OVER MOST OF RUSSELL AND WASHINGTON COUNTIES...MOVING SOUTHEAST AT
  30 MPH.

* EXCESSIVE RAINFALL AT THE RATE OF UP TO 1 INCH PER HOUR WILL
  PRODUCE FLOODING ACROSS RUSSELL AND WASHINGTON COUNTIES
>  THROUGH 1150 AM EDT.  AREA CREEKS ARE ALREADY AT BANKFULL AND WILL
  LIKELY PRODUCE FLASH FLOODING.

DON'T DRIVE ACROSS FLOODED ROADS! MOST FLASH FLOOD DEATHS OCCUR IN
AUTOMOBILES.

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, 2:35 AM EDT, 6 hours 44 minutes earlier.

Area forecast discussion, Jun 10, 2:35 AM EDT, 6 hours 44 minutes before

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

WILL ATTEMPT TO FIRE OUT A SOMEWHAT ABBREVIATED AFD THIS MRNG.  BRIEF
LOOK AT CURRENT SFC/RADAR/STLT PICS AND 10/00Z DATA SHOWS VERY
UNSTABLE AIRMASS THIS MRNG...ESPECIALLY MIDDLE TN AND PLATEAU.  SFC
WARM FRONT SEEMS TO SLICE N-S THRU CNTRL KY AND PLATEAU...WITH 850 MB
ANLYS SHOWING GOOD WAA...THETA-E RIDGE AND THETA-E ADVECTION INTO THE
CWA ATTM AND THRU GOOD PART OF TODAY.  92F PROG MAY BE OPTIMISTIC IN
LIFTING THE WARM FRONT TO NEAR TRI BY 12Z TODAY.  ANYWAY...CONSIDERING
ALL OF THIS...MIGHT BE WISE TO UP POPS FOR TODAY TO NEAR FAN MOS (50-
60%).  A GOOD UPDATE ALREADY THIS MRNG FROM CRW TO ADD POPS!

GOOD THREAT OF SEVERE BASED ON STRONG WIND FIELDS AND JUST GOT A
REPORT FROM CRW OF HALF-DOLLAR SIZED HAIL WITH CELL MOVG SE INTO
RUSSELL COUNTY.  THANKS TO CRW FOR CALL AND WE WERE IN PROCESS OF
ISSUING A SVR TSTM WARNING...FOR SURROUNDING OFFICES THE VIL WAS
ONLY AROUND 50.  SPC HAS ALREADY MENTIONED A PSBL WATCH SHORTLY
WHICH WOULD LIKELY INCLUDE SWRN VA AND NE TN CWA.

OTRW...LATER PERIODS...I HAVE NO PROBLEM WITH ONGOING LOW POPS
(20-30%) FOR TNGT AND GENLY CHC (30%) ACROSS THE BOARD ON THU.
TEMPS BRIEFLY...I WOULD PROBABLY STAY BELOW THE WARMEST MAXES WITH
MINS FOR TNGT CLOSE AND ACCEPTABLE.  GOTTA GO MONITOR STORMS ON KMRX
AND KHTX PUPS!   #10

TG

In the hours before

Local storm report, Jun 10, 3:50 AM EDT, 5 hours 29 minutes before

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

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

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.

FERRELL

Special weather statement, Jun 10, 4:20 AM EDT, 4 hours 59 minutes before

NCZ060-061-TNZ012>018-034>047-066>074-083>087-099>102-VAZ001-002-005-
006-008-102200-

AREA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
420 AM EDT WED JUN 10 1998

...SEVERE THUNDERSTORMS POSSIBLE TODAY ACROSS EAST TENNESSEE...
SOUTHWESTERN VIRGINIA AND CHEROKEE/CLAY COUNTIES OF NORTH CAROLINA...

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY ACROSS MOST OF
TENNESSEE AND SOUTHWESTERN VIRGINIA AS WELL AS CHEROKEE AND CLAY
COUNTIES OF SOUTHWESTERN NORTH CAROLINA.

A WARM FRONT WAS LOCATED ACROSS EASTERN PARTS OF THE CUMBERLAND PLATEAU
AND SOUTHEAST TENNESSEE EARLY WEDNESDAY MORNING.  THIS BOUNDARY WAS
ALREADY HELPING TO FOCUS A FEW STRONG TO SEVERE THUNDERSTORMS...WITH THE
WARM FRONT EXPECTED TO CONTINUE A SLOW NORTHEAST MOVEMENT TODAY.  MUCH
OF THE AREA WILL BE SOUTHWEST OF THE WARM FRONT BY LATE MORNING AND
AFTERNOON...LEAVING A VERY MOIST AND UNSTABLE AIRMASS IN PLACE.  A
COMBINATION OF DAYTIME HEATING AND A WEAK UPPER LEVEL DISTURBANCE WILL
LIKELY SET OFF ANOTHER ROUND OF SCATTERED THUNDERSTORMS...JUST ABOUT
ANYWHERE IN THE SLIGHT RISK AREA...BUT ESPECIALLY NEAR THE WARM FRONT.

THE MAIN THREAT FROM THESE STORMS WILL BE DAMAGING STRAIGHT-LINE WINDS
IN EXCESS OF 50 MPH AND HAIL OF DIME SIZE OR LARGER.  VERTICAL WIND
PROFILES ALSO SUPPORT THE POSSIBILITY OF ISOLATED TORNADOES.  PERSONS IN
AND NEAR THE SLIGHT RISK AREA SHOULD CLOSELY MONITOR THIS DEVELOPING
WEATHER SYSTEM.

EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTER GROUPS SHOULD PREPARE
FOR POSSIBLE ACTIVATION TODAY.  IF YOU EXPERIENCE SEVERE WEATHER IN YOUR
AREA...CONTACT YOUR LOCAL LAW ENFORCEMENT AGENCY AND ASK THEM TO PASS
YOUR REPORT TO THE NATIONAL W6EATHER SERVICE.

TG

Special weather statement, Jun 10, 4:20 AM EDT, 4 hours 59 minutes before

NCZ060-061-TNZ012>018-034>047-066>074-083>087-099>102-VAZ001-002-005-
006-008-102200-

AREA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
420 AM EDT WED JUN 10 1998

...SEVERE THUNDERSTORMS POSSIBLE TODAY ACROSS EAST TENNESSEE...
SOUTHWESTERN VIRGINIA AND CHEROKEE/CLAY COUNTIES OF NORTH CAROLINA...

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY ACROSS MOST OF
TENNESSEE AND SOUTHWESTERN VIRGINIA AS WELL AS CHEROKEE AND CLAY
COUNTIES OF SOUTHWESTERN NORTH CAROLINA.

A WARM FRONT WAS LOCATED ACROSS EASTERN PARTS OF THE CUMBERLAND PLATEAU
AND SOUTHEAST TENNESSEE EARLY WEDNESDAY MORNING.  THIS BOUNDARY WAS
ALREADY HELPING TO FOCUS A FEW STRONG TO SEVERE THUNDERSTORMS...WITH THE
WARM FRONT EXPECTED TO CONTINUE A SLOW NORTHEAST MOVEMENT TODAY.  MUCH
OF THE AREA WILL BE SOUTHWEST OF THE WARM FRONT BY LATE MORNING AND
AFTERNOON...LEAVING A VERY MOIST AND UNSTABLE AIRMASS IN PLACE.  A
COMBINATION OF DAYTIME HEATING AND A WEAK UPPER LEVEL DISTURBANCE WILL
LIKELY SET OFF ANOTHER ROUND OF SCATTERED THUNDERSTORMS...JUST ABOUT
ANYWHERE IN THE SLIGHT RISK AREA...BUT ESPECIALLY NEAR THE WARM FRONT.

THE MAIN THREAT FROM THESE STORMS WILL BE DAMAGING STRAIGHT-LINE WINDS
IN EXCESS OF 50 MPH AND HAIL OF DIME SIZE OR LARGER.  VERTICAL WIND
PROFILES ALSO SUPPORT THE POSSIBILITY OF ISOLATED TORNADOES.  PERSONS IN
AND NEAR THE SLIGHT RISK AREA SHOULD CLOSELY MONITOR THIS DEVELOPING
WEATHER SYSTEM.

EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTER GROUPS SHOULD PREPARE
FOR POSSIBLE ACTIVATION TODAY.  IF YOU EXPERIENCE SEVERE WEATHER IN YOUR
AREA...CONTACT YOUR LOCAL LAW ENFORCEMENT AGENCY AND ASK THEM TO PASS
YOUR REPORT TO THE NATIONAL W6EATHER SERVICE.

TG

Local storm report, Jun 10, 8:40 AM EDT, 39 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, 2:22 AM EDT	Severe Thunderstorm Warning	MRX	Russell	48 min
Jun 10, 2:56 AM EDT	Severe Thunderstorm Warning	MRX	Washington	49 min
Jun 10, 5:37 AM EDT	Severe Thunderstorm Warning	MRX	Russell, Washington	48 min

Nearby

Flash Flood Warnings in Virginia, 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.