Alert archive / Virginia / Special Weather Statements in 2012
Special Weather Statement, NWS Blacksburg, VA
NWS Blacksburg, VA issued this special weather statement at May 21, 2012, 11:46 PM EDT for Amherst County, Virginia. It was in force for 59 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
- May 21, 2012, 11:46 PM EDT (03:46 UTC)
- Expired
- May 22, 2012, 12:45 AM EDT
- In force
- 59 min
- Issued by
- NWS Blacksburg, VA
County Amherst County, VA
The radar
The Roanoke radar (KFCX), 124 km from the middle of the area, began a volume at 03:47 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.
The nearest sounding before it
Roanoke, VA (KRNK), launched 00:00Z, 3.8 hours before the alert went out and 56 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
- 103 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 1206 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at May 21, 9:03 PM EDT, 2 hours 43 minutes earlier.
Area forecast discussion, May 21, 9:03 PM EDT, 2 hours 43 minutes before
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</html>Hazardous weather outlook, May 21, 5:23 PM EDT, 6 hours 23 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BLACKSBURG VA 523 PM EDT MON MAY 21 2012 NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059- WVZ042>045-222130- ASHE-ALLEGHANY NC-SURRY-STOKES-ROCKINGHAM-CASWELL-WATAUGA-WILKES- YADKIN-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-MONTGOMERY-GRAYSON- CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-ROCKBRIDGE- PATRICK-FRANKLIN-BEDFORD-AMHERST-HENRY-PITTSYLVANIA-CAMPBELL- APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-MERCER-SUMMERS-MONROE- GREENBRIER- 523 PM EDT MON MAY 21 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NORTH CAROLINA...NORTHWEST NORTH CAROLINA...CENTRAL VIRGINIA...SOUTH CENTRAL VIRGINIA...SOUTHWEST VIRGINIA...WEST CENTRAL VIRGINIA AND SOUTHEAST WEST VIRGINIA. .DAY ONE...TONIGHT. SCATTERED SHOWERS AND THUNDERSTORMS MAY PRODUCE ISOLATED HAIL...STRONG WINDS AND LOCALLY HEAVY RAINFALL THIS EVENING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. SHOWERS AND THUNDERSTORMS WILL INCREASE IN COVERAGE TUESDAY...AND ESPECIALLY WEDNESDAY. THESE SHOWERS AND STORMS WILL BE SLOW MOVING AND COULD BRING LOCALIZED FLOODING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Special weather statement, May 21, 6:47 PM EDT, 4 hours 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
647 PM EDT MON MAY 21 2012
VAZ023-212345-
BOTETOURT VA-
647 PM EDT MON MAY 21 2012
...A STRONG THUNDERSTORM WILL AFFECT EASTERN BOTETOURT COUNTY...
AT 644 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR EAGLE ROCK...
MOVING SOUTHEAST AT 5 MPH.
THIS STORM WILL PRODUCE PEA-SIZED HAIL. EXPECT FREQUENT CLOUD TO
GROUND LIGHTNING FROM THIS STORM. DO NOT STAY IN THE OPEN OR SEEK
SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A
THUNDERSTORM APPROACHES.
THIS STORM WILL BE NEAR SPRINGWOOD AROUND 745 PM.
LAT...LON 3776 7977 3767 7967 3766 7968 3761 7959
3758 7958 3753 7950 3752 7951 3749 7957
3745 7959 3745 7963 3748 7966 3746 7971
3763 7992
RABSpecial weather statement, May 21, 7:06 PM EDT, 4 hours 40 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
706 PM EDT MON MAY 21 2012
VAZ022-220000-
ROANOKE VA-
706 PM EDT MON MAY 21 2012
...A STRONG THUNDERSTORM WILL AFFECT ROANOKE COUNTY AND ROANOKE
CITY...
AT 702 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR SALEM CITY...
MOVING EAST AT 5 MPH.
THIS STORM WILL BE CAPABLE OF PRODUCING PEA-SIZED HAIL. EXPECT
FREQUENT CLOUD TO GROUND LIGHTNING FROM THIS STORM. DO NOT STAY IN
THE OPEN OR SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE
INDOORS WHEN A THUNDERSTORM APPROACHES.
THIS STORM WILL BE NEAR CAVE SPRING AROUND 715 PM...HOLLINS AROUND
720 PM...ROANOKE AROUND 730 PM...ROANOKE MOUNTAIN AROUND 750 PM AND
VINTON AROUND 800 PM.
LAT...LON 3733 7986 3730 7984 3726 7985 3723 7984
3721 7986 3721 7989 3719 7989 3716 7992
3722 8008 3739 8002
RABLocal storm report, May 21, 8:00 PM EDT, 3 hours 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
800 PM EDT MON MAY 21 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0520 PM HAIL 3 ESE HUFFMAN 37.33N 80.37W
05/21/2012 E1.00 INCH MONTGOMERY VA PUBLIC
CRAIG CREEK ROAD
&&
FISHERLocal storm report, May 21, 8:43 PM EDT, 3 hours 3 minutes before
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</html>Special weather statement, May 21, 9:06 PM EDT, 2 hours 40 minutes before
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</html>Special weather statement, May 21, 11:46 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1146 PM EDT MON MAY 21 2012
VAZ035-220445-
AMHERST VA-
1146 PM EDT MON MAY 21 2012
...STRONG THUNDERSTORMS WILL AFFECT AMHERST COUNTY...
AT 1143 PM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM FORKS OF
BUFFALO TO 5 MILES WEST OF AMHERST TO 7 MILES NORTH OF LYNCHBURG
CITY...MOVING EAST AT 5 MPH.
WIND GUSTS TO 30 MPH ARE POSSIBLE WITH THESE STORMS. VERY HEAVY RAIN
WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO POND ON ROADS
AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.
THESE STORMS WILL BE NEAR FALCONERVILLE AROUND 1210 AM...AMHERST
AROUND 1240 AM AND CLIFFORD AROUND 1245 AM.
LAT...LON 3753 7890 3751 7891 3750 7894 3749 7894
3743 7902 3743 7904 3742 7905 3743 7915
3748 7920 3761 7920 3775 7929 3770 7899
3756 7890 3754 7886
RABThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 8:16 PM EDT | Severe Thunderstorm Warning | RNK | Bedford, Franklin, City of Roanoke | 59 min |
| May 21, 9:06 PM EDT | Special Weather Statement | RNK | Pittsylvania, City of Danville | 39 min |
| May 21, 10:42 PM EDT | Areal Flood Advisory | RNK | Amherst, Bath, Rockbridge, City of Buena Vista, City of Lexington | 3 hr |
| May 22, 3:27 AM EDT | Flash Flood Watch | RNK | Alleghany, Bath, Bland, Botetourt, Carroll, Craig and 17 more | 18 hr |
| May 22, 3:32 PM EDT | Special Weather Statement | RNK | Rockbridge | 58 min |
| May 22, 3:39 PM EDT | Special Weather Statement | RNK | Giles | 66 min |
| May 22, 3:54 PM EDT | Special Weather Statement | RNK | Floyd, Patrick | 66 min |
| May 22, 4:22 PM EDT | Special Weather Statement | RNK | Rockbridge, City of Buena Vista, City of Lexington | 53 min |
| May 22, 4:57 PM EDT | Severe Thunderstorm Warning | RNK | Amherst | 63 min |
| May 22, 5:18 PM EDT | Special Weather Statement | RNK | Floyd | 42 min |
| May 22, 5:34 PM EDT | Special Weather Statement | RNK | Bedford | 41 min |
| May 22, 6:01 PM EDT | Severe Thunderstorm Warning | RNK | Bedford, City of Lynchburg | 44 min |
| May 22, 6:30 PM EDT | Severe Thunderstorm Warning | RNK | Buckingham | 60 min |
| May 22, 6:38 PM EDT | Special Weather Statement | RNK | Appomattox, Campbell, City of Lynchburg | 52 min |
| May 22, 7:18 PM EDT | Special Weather Statement | RNK | City of Danville | 57 min |
| May 22, 7:54 PM EDT | Severe Thunderstorm Warning | RNK | Henry, City of Martinsville | 36 min |
| May 22, 6:20 PM EDT | Severe Thunderstorm Warning | RNK | Rockingham | 40 min |
| May 22, 6:55 PM EDT | Special Weather Statement | RNK | Caswell | 50 min |
| May 22, 7:11 PM EDT | Special Weather Statement | RNK | Surry, Yadkin | 64 min |
| May 22, 1:28 PM EDT | Special Weather Statement | RNK | Summers | 47 min |
| May 22, 3:10 PM EDT | Special Weather Statement | RNK | Monroe | 65 min |
| May 22, 3:50 PM EDT | Special Weather Statement | RNK | Mercer | 55 min |
| May 22, 4:33 PM EDT | Areal Flood Advisory | RNK | Mercer | 117 min |
| May 22, 4:51 PM EDT | Flash Flood Warning | RNK | Mercer | 3 hr |
Nearby
Special Weather Statements in Virginia, 2012Every special weather statement in 2012
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.