Alert archive / Virginia / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 107, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at Jun 13, 2003, 8:16 PM EDT for Patrick County, Virginia. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 13, 2003, 8:16 PM EDT (00:16 UTC)
- Expired
- Jun 13, 2003, 9:00 PM EDT
- In force
- 44 min
- Issued by
- NWS Blacksburg, VA
- Area
- Counties, with a storm outline in the text
County Patrick County, VA
The radar
The Roanoke radar (KFCX), 40 km from the middle of the area, began a volume at 00:03 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Roanoke, VA (KRNK), launched 00:00Z, 0.3 hours before the alert went out and 97 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.
- Mixed-layer CAPE
- 501 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 961 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KRNK 140016 SVRRNK VAC141-140100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BLACKSBURG VA 813 PM EDT FRI JUN 13 2003 THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... PATRICK COUNTY IN SOUTHWEST VIRGINIA * UNTIL 900 PM EDT. * AT 812 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES WEST OF STUART...MOVING NORTHEAST AT 15 MPH. * SOME LOCATIONS THREATENED THROUGH 900 PM EDT INCLUDE STUART... WOOLWINE... THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING WINDS UP TO 60 MILES AN HOUR. HAIL...INTENSE RAIN AND DAMAGING WINDS ARE LIKELY WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER UNTIL THE STORM PASSES. RELAY SEVERE WEATHER REPORTS TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1...8 6 6...2 1 5...4 3 2 4. LAT...LON 3666 8055 3653 8039 3668 8010 3685 8024 $$ 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 Jun 13, 3:15 PM EDT, 5 hours 1 minute earlier.
Area forecast discussion, Jun 13, 3:15 PM EDT, 5 hours 1 minute before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BLACKSBURG, VA 315 PM EDT FRI JUN 13 2003 COMBINATION OF HEATING AND CONVERGENCE ALONG SFC TROF/OLD BOUNDARIES HAS RESULTED SCT CONVECTION THIS AFTERNOON. KFCX 88D AT 19Z SHOWED MOST OF THE SHOWERS AND THUNDERSTORMS WERE ALONG AND EAST OF BLUE RIDGE MOUNTAINS. S/W TROF AND ASSOCD SPEED MAX WILL ROTATE EAST ENHANCING COVERAGE IN THE EAST. MAIN THREAT THIS AFTERNOON AND EVENING WILL BE TORRENTIAL DOWNPOURS WITH HIGH PWATS AND GUSTY WINDS. THE UNSETTLED WEATHER WILL CONTINUE SATURDAY...AS CDFNT PUSHES SOUTH INTO FA. ELECTED TO HAVE LIKELY POPS SAT AFTERNOON. IN THE EXTENDED PERIODS...FRONTAL BOUNDARY WILL DROP SOUTH AND STALL ACROSS THE SOUTHEAST STATES. DAILY CONVECTION CONVECTION IS EXPECTED TO DEVELOP ALONG AND SOUTH OF THE BOUNDARY. TRICKY TO PLACED AND TIME FRONTAL BOUNDARY...AND THE PUSH OF WEDGE. MEDIUM RANGE MODELS CONTINUE TO HAVE DIFFERENT OPINIONS. ETA/GFS ARE CONSIDERABLY DIFFERENT WITH FNTL POSITION BY 00Z MON. THE 12Z RUN OF GFS WAS WETTER THAN THE 06Z RUN OF THE GFS. TRIED TO BLEND THE 12Z GFS WITH THE UKMET TO CREATE MY GRID SOLUTION. CLIMATOLOGY WOULD SUGGEST SLIGHTLY SLOWER SOLUTION THE MODELS WITH BACKDOOR FNT. BLENDED A CHANGING ISC GRID SOLUTION. FELT THAT A WAVE ALONG THE FRONTAL BOUNDARY WILL LIFT MOISTURE FURTHER NORTH THAN FIRST THOUGHT. NUDGED THE TIMING OF PCPN ON THURSDAY AND ADDED A CHC OF THUNDER TO FRIDAY. LOWER TEMPS SUNDAY NIGHT AND MONDAY. ADJUSTED MAX TEMPS UP WED IN THE WEST. RAISED TEMPS A FEW DEGREES FOR THURSDAY AND FRIDAY. HAVE A GOOD NIGHT. FCSTID = 7 PRELIM NUMBERS ROA 66 81 66 75 / 50 70 40 30 LYH 68 84 67 80 / 50 70 50 30 DAN 70 84 68 80 / 50 70 50 40 BLF 63 77 59 74 / 50 60 30 20 LWB 63 77 59 74 / 50 60 30 20 BCB 63 78 63 75 / 50 60 40 30 TNB 63 78 63 75 / 50 60 40 30 .RNK... NC...NONE. VA...NONE. WV...NONE.
Hazardous weather outlook, Jun 13, 6:55 PM EDT, 1 hour 21 minutes before
NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059- WVZ042>045-141100- HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE BLACKSBURG VA 655 PM EDT FRI JUN 13 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST WEST VIRGINIA... WESTERN AND CENTRAL VIRGINIA...AS WELL AS NORTHWEST NORTH CAROLINA. .DAY ONE...TONIGHT MINOR FLOODING WILL CONTINUE ALONG THE DAN RIVER AT SOUTH BOSTON. PLEASE SEE THE WBCFLSRNK PRODUCT FOR THE LATEST INFORMATION ON CREST LEVELS. .DAYS TWO THROUGH SEVEN... THE NATIONAL WEATHER SERVICE REMAINS CONCERNED ABOUT REPETITIVE RAINFALL. THE WET PATTERN...WHICH IS FORECAST TO CONTINUE THROUGH THIS UPCOMING WEEKEND...FAVORS THE POSSIBILITY OF SMALL STREAM OR RIVER FLOODING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON...AND AGAIN SATURDAY AFTERNOON. JH/SK
In the hours before
Special weather statement, Jun 13, 3:22 PM EDT, 4 hours 54 minutes before
VAZ022-034-132045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BLACKSBURG VA 322 PM EDT FRI JUN 13 2003 ...MINOR FLOODING LIKELY ALONG THE BLUE RIDGE... THUNDERSTORMS WITH TORRENTIAL RAINFALL WILL PUSH EAST OUT OF EASTERN ROANOKE COUNTY...AND INTO BEDFORD COUNTY THROUGH 4:00 PM. ADDITIONAL RAINFALL AMOUNTS OF AROUND ONE INCH IN LESS THAN ONE HOUR WILL LIKELY CAUSE DITCHES...AND POOR DRAINAGE AREAS TO FLOOD. PERSONS IN LOCATIONS ALONG THE EASTERN SLOPES OF THE BLUE RIDGE...ESPECIALLY FROM AROUND VINTON EAST TO BEDFORD SHOULD BE ALERT FOR MINOR FLOODING. MOTORISTS CAN ALSO EXPECT SOME PONDING OF WATER ON AREA ROADWAYS...UNTIL THE RAIN DIMINISHES BY 4:30 PM. REMEMBER DO NOT ATTEMPT TO DRIVE THROUGH LOCATIONS WHERE WATER COVERS THE ROADWAY. JH
Special weather statement, Jun 13, 5:02 PM EDT, 3 hours 14 minutes before
VAZ035-132215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BLACKSBURG VA 502 PM EDT FRI JUN 13 2003 THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL MOVE OUT OF NORTHEASTERN AMHERST COUNTY BY 5:30 PM. RUNOFF FROM THESE STORMS MAY PRODUCE MINOR FLOODING OF SMALL CREEKS AND STREAMS AND GENERALLY LOW LYING AREAS...AND ALSO URBAN FLOODING PROBLEMS IN THE TOWN OF AMHERST THROUGH 6 PM. DO NOT ATTEMPT TO DRIVE THROUGH RISING WATER. DO NOT CROSS AREAS WHERE WATER IS FLOWING...EVEN ON FOOT. RAPIDLY FLOWING WATER CAN QUICKLY SWEEP YOU OFF YOUR FEET. SK
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 8:13 PM EDT | Severe Thunderstorm Warning | RNK | Patrick | 47 min |
| Jun 13, 8:30 PM EDT | Flash Flood Warning | RNK | Patrick | 2 hr |
| Jun 13, 10:11 PM EDT | Flash Flood Warning | RNK | Patrick | 49 min |
| Jun 13, 11:01 PM EDT | Flash Flood Warning | RNK | Patrick | 59 min |
| Jun 14, 5:45 PM EDT | Flash Flood Warning | RNK | Bedford | 2 hr |
| Jun 14, 6:53 PM EDT | Flash Flood Warning | RNK | Roanoke, City of Roanoke | 3 hr |
Nearby
Severe Thunderstorm Warnings in Virginia, 2003Every severe thunderstorm warning in 2003
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.