Alert archive / Virginia / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 209, NWS Blacksburg, VA

August 27, 2000Craig County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 27, 2000, 8:58 PM EDT for Craig County, Virginia. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 27, 2000, 8:58 PM EDT (00:58 UTC)
Expired: Aug 27, 2000, 9:45 PM EDT
In force: 47 min
Issued by: NWS Blacksburg, VA
Area: Whole counties

County Craig County, VA

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 1.0 hours before the alert went out and 70 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: 861 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1046 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 69 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KRNK 280058
SVRRNK
VAC045-280145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
858 PM EDT SUN AUG 27 2000

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CRAIG COUNTY IN SOUTHWEST VIRGINIA...

* UNTIL 945 PM EDT.

* AT 858 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 2 MILES SOUTH OF SINKING CREEK...;MOVING
  NORTHEAST AT 15 MPH.

SOME LOCATIONS THREATENED THROUGH 945 PM EDT INCLUDE
  SINKING CREEK...
  NEW CASTLE...

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 Aug 27, 8:48 PM EDT, 10 minutes earlier.

Area forecast discussion, Aug 27, 8:48 PM EDT, 10 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BLACKSBURG, VA
848 PM EDT SUN AUG 27 2000

BUSY EVE ACROSS THE AREA WITH HAIL PRODUCING TSRA ABOUT OVERHEAD AND
MOVING LITTLE. APCHG UPR LOW NOW OVER CNTRL WVA PRODUCING NEXT BATCH
OF TSRA AND EXPECT IT TO SLIDE THRU SE WVA AND ACROSS MUCH OF
WRN/SWRN VA OVER THE NEXT COUPLE OF HOURS. WITH ATMOS WEST OF THE
BLUE RDG HAVING RECOVERED FROM EARLIER SHRA AND INCRSG LAPSE RATES
PER COLD POOL WILL LKLY SEE CVRG HOLD TOGETHER A BIT LONGER TNGT.
THIS SEEMS ON TRACK WITH GOING MESO-ETA/RUC WHICH TRACK UPR VORT
SEWD THRU THE CWA OVRNGT AND INTO NC BY MORN. APRS BEST UVV TO
EVENTUALLY SHIFT EWD ON PVA SIDE OF UPR SUPPORT WHICH SHOULD SHIFT
SEWD OVRNGT. THUS PLAN TO BUMP UP POPS TO CAT EARLY ON THEN CUT TO
CHC LATER ON. ELSW...GOOD CHC TO LKLY ON TAP AT LEAST TIL A WHILE
AFTER MIDNIGHT.  SOME SLIGHT TEMP ADJUST IN STORE.  WILL ISSUE ZFP
EARLY TO COVER INCRSG POPS ATTM.

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

JH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 27, 8:32 PM EDT	Severe Thunderstorm Warning	RNK	Montgomery	28 min
Aug 27, 9:17 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, City of Covington	43 min
Aug 27, 9:17 PM EDT	Severe Thunderstorm Warning	RNK	Botetourt	43 min
Aug 27, 9:51 PM EDT	Flash Flood Warning	RNK	Floyd	114 min
Aug 27, 10:29 PM EDT	Flash Flood Warning	RNK	Montgomery, Roanoke, City of Roanoke, City of Salem	3 hr
Aug 27, 11:01 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Henry	44 min
Aug 27, 11:36 PM EDT	Flash Flood Warning	RNK	Amherst, Campbell, City of Lynchburg	114 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; the sounding from the Mesonet's radiosonde archive.