Alert archive / Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Blacksburg, VA

July 30, 2012Carroll County, Virginia

NWS Blacksburg, VA issued this special weather statement at Jul 30, 2012, 2:25 PM EDT for Carroll County, Virginia. It was in force for 65 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: Jul 30, 2012, 2:25 PM EDT (18:25 UTC)
Expired: Jul 30, 2012, 3:30 PM EDT
In force: 65 min
Issued by: NWS Blacksburg, VA

County Carroll County, VA

The radar

The Roanoke radar (KFCX), 42 km from the middle of the area, began a volume at 18:24 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 12:00Z, 6.4 hours before the alert went out and 113 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: 392 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 826 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 35 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.

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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 Jul 30, 1:09 PM EDT, 1 hour 16 minutes earlier.

Area forecast discussion, Jul 30, 1:09 PM EDT, 1 hour 16 minutes before

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Hazardous weather outlook, Jul 30, 3:50 AM EDT, 10 hours 35 minutes before

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In the hours before

Special weather statement, Jul 30, 1:13 PM EDT, 1 hour 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
113 PM EDT MON JUL 30 2012

VAZ045-046-059-301815-
APPOMATTOX VA-CAMPBELL VA-CHARLOTTE VA-
113 PM EDT MON JUL 30 2012

...STRONG THUNDERSTORMS WILL AFFECT APPOMATTOX...CAMPBELL AND
CHARLOTTE COUNTIES...

AT 108 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES NORTHWEST
OF APPOMATTOX...MOVING NORTHEAST AT 5 MPH. OTHER SLOW MOVING STORMS
WERE DEVELOPING OVER CHARLOTTE COUNTY.

WIND GUSTS TO 40 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 CONTINUE TO DRIFT SLOWLY AND LIKELY REDEVELOP INTO
PORTIONS OF CAMPBELL COUNTY THROUGH 215 PM.

LAT...LON 3688 7851 3698 7874 3701 7875 3699 7875
      3701 7882 3738 7910 3739 7907 3742 7907
      3755 7886 3755 7882 3743 7868 3742 7864
      3739 7863 3740 7859 3734 7860 3726 7867
      3720 7869 3720 7864 3715 7859 3715 7853

JH

Special weather statement, Jul 30, 2:06 PM EDT, 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
206 PM EDT MON JUL 30 2012

VAZ045-046-059-301900-
APPOMATTOX VA-CAMPBELL VA-CHARLOTTE VA-
206 PM EDT MON JUL 30 2012

...A STRONG THUNDERSTORM WILL AFFECT APPOMATTOX...CAMPBELL AND
CHARLOTTE COUNTIES...

AT 203 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES SOUTHEAST
OF CONCORD...MOVING SOUTH AT 10 MPH.

WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
VERY HEAVY RAIN WILL ALSO FALL FROM THIS STORM...AND WILL CAUSE
WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL
STREAMS.

RAINFALL RATES OF NEARLY 2 INCHES PER HOUR WILL BRING RISES TO WRECK
ISLAND CREEK...FALLING RIVER...AND REEDY CREEK.

THIS STORM WILL BE NEAR EVERGREEN AROUND 210 PM...PAMPLIN CITY AROUND
230 PM...MIKE AROUND 230 PM AND SPRING MILLS AROUND 235 PM.

FOR ADDITIONAL WEATHER INFORMATION...VISIT US ON THE WEB AT
HTTP://WEATHER.GOV.

LAT...LON 3730 7864 3726 7867 3720 7869 3720 7867
      3712 7870 3715 7909 3739 7905 3752 7878
      3737 7861

PH

Special weather statement, Jul 30, 2:25 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
225 PM EDT MON JUL 30 2012

VAZ012-013-016-301930-
CARROLL VA-PULASKI VA-WYTHE VA-
225 PM EDT MON JUL 30 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHEAST CARROLL...SOUTHWEST
PULASKI AND EXTREME SOUTHEAST WYTHE COUNTIES...

AT 220 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES SOUTH OF
ALLISONIA. THIS STORM IS NEARLY STATIONARY.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. VERY HEAVY RAIN
WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO POND ON ROADS AND
QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WILL CAUSE CREEKS AND
STREAMS TO QUICKLY RISE...INCLUDING BIG REED ISLAND CREEK.

THIS STORM WILL STAY OVER MAINLY RURAL AREAS OF WYTHE COUNTY...
PULASKI COUNTY AND CARROLL COUNTY.

FOR ADDITIONAL WEATHER INFORMATION...VISIT US ON THE WEB AT
HTTP://WEATHER.GOV.

LAT...LON 3691 8086 3696 8071 3689 8060 3687 8058
      3686 8058 3677 8076

PH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 1:13 PM EDT	Special Weather Statement	RNK	Appomattox, Charlotte	62 min
Jul 30, 2:06 PM EDT	Special Weather Statement	RNK	Appomattox	54 min
Jul 30, 2:54 PM EDT	Special Weather Statement	RNK	Appomattox	66 min
Jul 30, 4:32 PM EDT	Special Weather Statement	RNK	Bedford	58 min
Jul 30, 4:58 PM EDT	Special Weather Statement	RNK	Franklin	47 min
Jul 30, 5:20 PM EDT	Special Weather Statement	RNK	Cumberland	40 min
Jul 30, 6:44 PM EDT	Special Weather Statement	RNK	Halifax	31 min
Jul 30, 7:19 PM EDT	Special Weather Statement	RNK	Halifax	41 min
Jul 30, 7:44 PM EDT	Special Weather Statement	RNK	Bath	31 min
Jul 30, 7:50 PM EDT	Severe Thunderstorm Warning	RNK	Bath	40 min
Jul 30, 7:57 PM EDT	Special Weather Statement	RNK	Halifax	48 min
Jul 29, 10:02 PM EDT	Special Weather Statement	RNK	Caswell	58 min
Jul 30, 4:11 PM EDT	Special Weather Statement	RNK	Ashe	64 min

Nearby

Special Weather Statements in Virginia, 2012 Every 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.