Alert archive / Virginia / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 165, NWS Blacksburg, VA

July 28, 2000Tazewell County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 28, 2000, 5:26 PM EDT for Tazewell County, Virginia. It was in force for 49 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: Jul 28, 2000, 5:26 PM EDT (21:26 UTC)
Expired: Jul 28, 2000, 6:15 PM EDT
In force: 49 min
Issued by: NWS Blacksburg, VA
Area: Whole counties

County Tazewell County, VA

The radar

The Roanoke radar (KFCX), 115 km from the middle of the area, began a volume at 21:29 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.

What was reported inside it

Time	Report	Where	Remark
Jul 28, 5:45 PM EDT	Hail 1.75	Tazewell, VA
Jul 28, 5:45 PM EDT	Thunderstorm Wind	Tazewell, VA

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

Roanoke, VA (KRNK), launched 12:00Z, 9.4 hours before the alert went out and 183 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: 360 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 998 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 13 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 
WUUS51 KRNK 282127
SVRRNK
VAC185-282215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
526 PM EDT FRI JUL 28 2000

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN TAZEWELL COUNTY IN SOUTHWEST VIRGINIA...

* UNTIL 615 PM EDT.

* AT 525 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES SOUTH OF RICH{LANDS...MOVING EAST AT 25
  MPH.

SOME LOCATIONS THREATENED THROUGH 615 PM EDT INCLUDE
  RICHLANDS...
  TAZEWELL...
  BURKES GARDEN...

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY.

.END
13

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Blacksburg, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 28, 2:40 PM EDT, 2 hours 46 minutes earlier.

Area forecast discussion, Jul 28, 2:40 PM EDT, 2 hours 46 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BLACKSBURG VA
240 PM EDT FRI JUL 28 2000

CRNT MOIST SW FLOW PATTERN WILL PERSIST NEXT FEW DAYS AS UPR LOW
REMAINS OVER THE UPR MIDWEST. NUMEROUS SPOKES OF ENERGY ROTATING
ARND THE LOW COULD TRIGGER CONVECTION AT ANY TIME...BUT MAINLY AFTN
AND EVE. CAPES REMAIN HIGH THRU THE FCST PD. MODELS CONT HAVING A
VERY HARD TIME WITH TIMING OF INDIVIDUAL WAVES...AND WITH THE
EASTERN EXTENT OF THEIR EFFECTS. WILL BROADBRUSH CHC POPS AND GIVE
SLIGHTLY HIGHER ONES TO THE WEST THRU THE PERIOD...CLOSER TO THE
ENERGY SOURCE. PCPBL WATER WILL GRADUALLY INCREASE INTO TMRW SO
THREAT OF ISOLATED FLASH FLOODING WILL LIKELY INCREASE AS WELL.

NOTHING MUCH CHANGING IN THE EXTENDED EITHER. ALTHOUGH THE MRF
BEGINS BUILDING OFFSHORE RIDGE BACK INTO THE SOUTHEAST US EARLY NEXT
WEEK...WHICH MAY START TO DRY THINGS OUT.

.RNK...
.VA...NONE.
.WV...NONE.
.NC...NONE.

JDS

[

In the hours before

Local storm report, Jul 28, 3:18 PM EDT, 2 hours 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG, VA
318 PM EDT FRI JUL 28 2000

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

0245 PM    PINEY CREEK               NC   .75 INCH HAIL
07/28/00   ALLEGHANY                      SPOTTER REPORT

0300 PM    PRINCETON                 WV   .75 INCH HAIL
07/28/00   MERCER                         SPOTTER REPORT

Local storm report, Jul 28, 4:05 PM EDT, 1 hour 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG, VA
405 PM EDT FRI JUL 28 2000

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

0300 PM    PIPESTEM                  WV   WIND DAMAGE
07/28/00   SUMMERS                        TRAINED SPOTTER REPORTED
                                          TREES DOWN

JW

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 28, 2:19 PM EDT	Flash Flood Warning	RNK	Franklin, Patrick	3 hr
Jul 28, 3:21 PM EDT	Severe Thunderstorm Warning	RNK	Floyd, Montgomery	39 min
Jul 28, 3:55 PM EDT	Flash Flood Warning	RNK	Alleghany	3 hr
Jul 28, 4:13 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, City of Covington	32 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2000 Every severe thunderstorm warning in 2000

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; radar from the NEXRAD Level II archive.