Alert archive / Virginia / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 158, NWS Blacksburg, VA

July 2, 2002Campbell County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 2, 2002, 7:26 PM EDT for Campbell County, Virginia. It was in force for 34 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: Jul 2, 2002, 7:26 PM EDT (23:26 UTC)
Expired: Jul 2, 2002, 8:00 PM EDT
In force: 34 min
Issued by: NWS Blacksburg, VA
Area: Whole counties

County Campbell County, VA

The radar

The Roanoke radar (KFCX), 106 km from the middle of the area, began a volume at 23:26 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 2, 7:30 PM EDT	Hail 1	Rustburg, 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, 11.4 hours before the alert went out and 36 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: 1023 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 1029 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 53 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.

454 
WUUS51 KRNK 022326
SVRRNK
VAC031-030000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
726 PM EDT TUE JUL 2 2002

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN CAMPBELL COUNTY IN CENTRAL VIRGINIA

* UNTIL 800 PM EDT.

* AT 723 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES WEST OF RUSTBURG...MOVING SOUTH AT 15
  MPH.

HAIL UP TO ONE AND A HALF INCHES IN DIAMETER CAN BE EXPECTED WITH 
THIS STORM.

SOME LOCATIONS THREATENED THROUGH 800 PM EDT INCLUDE
  EVINGTON...

<<CALL TO ACTION>>IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE
WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY
RAIN...AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

RELAY SEVERE WEATHER REPORTS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1...8 6 6...2 1 5...4 3 2 4.

$$

02

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 2, 2:45 PM EDT, 4 hours 41 minutes earlier.

Area forecast discussion, Jul 2, 2:45 PM EDT, 4 hours 41 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BLACKSBURG, VA
245 PM EDT TUE JUL 2 2002

ATMOS HAS DEEPER MOISTR TODAY AND IS A LTL MORE SPPRTIVE OF
STORMS...SOME OF WHICH ARE BECOMING SEVERE.  CONVECTION HAS BEEN
LASTING PAST MIDNIGHT THE LAST COUPLE NIGHTS AND SEE NO REASON WHY
IT SHUDNT THE NEXT 2 NIGHTS AS WELL.  ACTIVITY SHUD ALSO CONT TO BE
FOCUSED OVER THE HIGHER TERRAIN...WITH A GRADUAL INCREASE EAST OF
THE MTNS THRU THURSDAY.

12Z AVN RUN IS VERY DEEP WITH THE TROF OVER NEW ENGLAND LATE IN THE
WEEK...MUCH LIKE THE OLDER MRF RUNS.  MOST BELIEVE THIS TO BE
OVERDONE...SO WILL HOLD TEMPS UP.  STILL WILL BRING DRIER AIR INTO
THE REGION FRI AND KEEP IT DRY THRU MONDAY.

MRF AND ECMWF BOTH INDICATING RETROGRADING THE STRONG UPR RIDGE TO
THE WEST NEXT WEEK AND DEEPENING AN EAST COAST TROF.  WILL
RELUCTANTLY ADD POPS FOR TUE AS MRF PROGGING AN IMPRESSIVE FRONT FOR
THAT TIME.

FCSTID = 9
ROA   71  93  71  93 /  30  30  30  40
LYH   70  93  70  92 /  30  30  30  40
DAN   73  95  73  94 /  30  30  30  40
BLF   66  85  66  84 /  40  40  30  40
LWB   65  84  65  83 /  40  40  30  40
BCB   66  86  66  85 /  30  40  30  40
TNB   64  85  64  84 /  40  40  30  40

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

In the hours before

Local storm report, Jul 2, 4:21 PM EDT, 3 hours 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
421 PM EDT TUE JUL 02 2002

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

245 PM     LEWISBURG                 WV   WIND DAMAGE
07/02/02   GREENBRIER                     SEVERAL TREES REPORTED
                                          DOWN.

320 PM                               WV   0.88 INCH HAIL
07/02/02   MONROE                         REPORTED BY COUNTY
                                          WARNING POINT.

325 PM     1NW UNION                 WV   WIND DAMAGE
07/02/02   MONROE                         TREES DOWN.

335 PM     2N RIPPLE MEAD            VA   WIND DAMAGE
07/02/02   GILES                          SEVERAL TREES REPORTED
                                          DOWN.

410 PM     BLACKSBURG                VA   1.00 INCH HAIL
07/02/02   MONTGOMERY                     REPORTED BY SKYWARN
                                          SPOTTER.

Local storm report, Jul 2, 4:57 PM EDT, 2 hours 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
457 PM EDT TUE JUL 02 2002

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

410 PM                               VA   WIND DAMAGE
07/02/02   PULASKI                        TREES DOWN ON MT. OLIVET
                                          ROAD AND FAXON ROAD.

429 PM     7NE SPARTA                NC   0.75 INCH HAIL
07/02/02   ALLEGHANY NC

Local storm report, Jul 2, 5:16 PM EDT, 2 hours 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
516 PM EDT TUE JUL 02 2002

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

505 PM     5SE WYTHEVILLE            VA   WIND DAMAGE
07/02/02   WYTHE                          TREES DOWN

Local storm report, Jul 2, 5:32 PM EDT, 1 hour 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
532 PM EDT TUE JUL 02 2002

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

500 PM     FRIES                     VA   WIND DAMAGE
07/02/02   GRAYSON                        TREES DOWN

500 PM     FRIES                     VA   0.88 INCH HAIL
07/02/02   GRAYSON

515 PM     2W BYLLESBY               VA   WIND DAMAGE
07/02/02   CARROLL                        TREES DOWN ON HIGHWAY 94

515 PM     2W BYLLESBY               VA   0.88 INCH HAIL
07/02/02   CARROLL

525 PM     FINCASTLE                 VA   2.00 INCH HAIL
07/02/02   BOTETOURT

Local storm report, Jul 2, 5:49 PM EDT, 1 hour 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
549 PM EDT TUE JUL 02 2002

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

529 PM     PINEY CREEK               NC   0.75 INCH HAIL
07/02/02   ALLEGHANY NC

534 PM     FINCASTLE                 VA   0.75 INCH HAIL
07/02/02   BOTETOURT

545 PM     LEXINGTON                 VA   0.80 INCH HAIL
07/02/02   ROCKBRIDGE                     TREE DOWN AS WELL.
                                          REPORTED BY LEXINGTON
                                          POLICE.

Local storm report, Jul 2, 6:49 PM EDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
649 PM EDT TUE JUL 02 2002

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

640 PM     SANDY RIDGE               NC   WIND DAMAGE
07/02/02   STOKES                         LARGE TREE DOWN.
                                          REPORTED BY COUNTY 911
                                          DISPATCH.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 3:08 PM EDT	Severe Thunderstorm Warning	RNK	Montgomery, City of Radford	37 min
Jul 2, 3:12 PM EDT	Severe Thunderstorm Warning	RNK	Bland	33 min
Jul 2, 3:18 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Craig	27 min
Jul 2, 3:20 PM EDT	Severe Thunderstorm Warning	RNK	Giles	25 min
Jul 2, 3:51 PM EDT	Severe Thunderstorm Warning	RNK	Pulaski	24 min
Jul 2, 3:57 PM EDT	Severe Thunderstorm Warning	RNK	Montgomery	33 min
Jul 2, 3:57 PM EDT	Severe Thunderstorm Warning	RNK	Craig	48 min
Jul 2, 4:07 PM EDT	Flash Flood Warning	RNK	Montgomery	3 hr
Jul 2, 4:36 PM EDT	Severe Thunderstorm Warning	RNK	Bath	24 min
Jul 2, 4:40 PM EDT	Severe Thunderstorm Warning	RNK	Botetourt	50 min
Jul 2, 4:42 PM EDT	Severe Thunderstorm Warning	RNK	Wythe	33 min
Jul 2, 4:46 PM EDT	Severe Thunderstorm Warning	RNK	Carroll	29 min
Jul 2, 4:57 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Grayson, City of Galax	48 min
Jul 2, 5:09 PM EDT	Severe Thunderstorm Warning	RNK	Montgomery, Roanoke, City of Salem	36 min
Jul 2, 5:19 PM EDT	Severe Thunderstorm Warning	RNK	Rockbridge, City of Lexington	41 min
Jul 2, 5:29 PM EDT	Severe Thunderstorm Warning	RNK	Botetourt	31 min
Jul 2, 6:09 PM EDT	Flash Flood Warning	RNK	Rockbridge, City of Lexington	111 min
Jul 2, 6:28 PM EDT	Severe Thunderstorm Warning	RNK	Henry	32 min
Jul 2, 7:10 PM EDT	Severe Thunderstorm Warning	RNK	Henry, City of Martinsville	35 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2002 Every severe thunderstorm warning in 2002

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.