Alert archive / Virginia / Special Weather Statements in 2021

Special Weather Statement, NWS Blacksburg, VA

September 1, 2021Amherst County, Virginia

NWS Blacksburg, VA issued this special weather statement at Sep 1, 2021, 8:43 AM EDT for Amherst County, Virginia. It was in force for 32 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: Sep 1, 2021, 8:43 AM EDT (12:43 UTC)
Expired: Sep 1, 2021, 9:15 AM EDT
In force: 32 min
Issued by: NWS Blacksburg, VA
Hail: 0.00 in
Wind: 40
Spout: Possible

County Amherst County, VA

The radar

The Roanoke radar (KFCX), 113 km from the middle of the area, began a volume at 12:42 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, 0.7 hours before the alert went out and 47 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: 44 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 541 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 228 m²/s²
0-3 km storm-relative helicity: 316 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

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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 Sep 1, 7:44 AM EDT, 59 minutes earlier.

Area forecast discussion, Sep 1, 7:44 AM EDT, 59 minutes before

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Hazardous weather outlook, Sep 1, 5:02 AM EDT, 3 hours 41 minutes before

Hazardous Weather Outlook
National Weather Service Blacksburg VA
502 AM EDT Wed Sep 1 2021

NCZ001-018-VAZ007-009-015-WVZ042-021100-
Ashe-Watauga-Tazewell-Smyth-Grayson-Mercer-
502 AM EDT Wed Sep 1 2021

...WIND ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING...
...FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

This Hazardous Weather Outlook is for northwest North Carolina,
southwest Virginia and southeast West Virginia.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.
   Wind Advisory.

The remnants of Hurricane Ida will continue to move through the
region today. Heavy rainfall will be the main concern through this
area which could lead to flooding and flash flooding. Gusty winds
will also be a concern this morning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed for reports of flooding. Reports
should be submitted by phone by calling 1-866-215-4324, social media,
by email at rnk.skywarn@noaa.gov or online at www.weather.gov/rnk.

NCZ002-VAZ010>013-WVZ043-044-507-508-021100-
Alleghany NC-Bland-Giles-Wythe-Pulaski-Summers-Monroe-
Eastern Greenbrier-Western Greenbrier-
502 AM EDT Wed Sep 1 2021

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

This Hazardous Weather Outlook is for northwest North Carolina,
southwest Virginia and southeast West Virginia.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

The remnants of Hurricane Ida will continue to move through the
region today. Heavy rainfall will be the main concern through this
area which could lead to flooding and flash flooding. Gusty winds
will also be a concern this morning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed for reports of flooding. Reports
should be submitted by phone by calling 1-866-215-4324, social media,
by email at rnk.skywarn@noaa.gov or online at www.weather.gov/rnk.

NCZ003-004-019-020-VAZ014-016>020-022>024-032>035-021100-
Surry-Stokes-Wilkes-Yadkin-Montgomery-Carroll-Floyd-Craig-
Alleghany VA-Bath-Roanoke-Botetourt-Rockbridge-Patrick-Franklin-
Bedford-Amherst-
502 AM EDT Wed Sep 1 2021

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

This Hazardous Weather Outlook is for north central North Carolina,
northwest North Carolina, central Virginia, south central Virginia,
southwest Virginia and west central Virginia.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

The remnants of Hurricane Ida will continue to move through the
region today. Heavy rainfall will be the main concern through this
area which could lead to flooding and flash flooding. Gusty winds
will also be a concern this morning.

In addition, an isolated tornado will remain possible today as spiral
bands of heavy rain showers and isolated thunderstorms move northward
across the region at times.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Limited spotter activation may be needed for reports of tornadoes and
flooding. Reports should be submitted by phone by calling
1-866-215-4324, social media, by email at rnk.skywarn@noaa.gov or
online at www.weather.gov/rnk.

NCZ005-006-VAZ043>047-058-059-021100-
Rockingham-Caswell-Henry-Pittsylvania-Campbell-Appomattox-Buckingham-
Halifax-Charlotte-
502 AM EDT Wed Sep 1 2021

This Hazardous Weather Outlook is for north central North Carolina,
central Virginia and south central Virginia.

.DAY ONE...Today and tonight.

The remnants of Hurricane Ida will continue to move through the
region today. Heavy rainfall will be the main concern through this
area which could lead to flooding and flash flooding.

In addition, an isolated tornado will remain possible today as spiral
bands of heavy rain showers and isolated thunderstorms move northward
across the region at times.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Limited spotter activation may be needed for reports of tornadoes and
flooding. Reports should be submitted by phone by calling
1-866-215-4324, social media, by email at rnk.skywarn@noaa.gov or
online at www.weather.gov/rnk.

RAB

In the hours before

Special weather statement, Sep 1, 7:27 AM EDT, 1 hour 16 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
727 AM EDT Wed Sep 1 2021

VAZ034-044>046-058-011215-
Halifax VA-Campbell VA-Bedford VA-Pittsylvania VA-Appomattox VA-
727 AM EDT Wed Sep 1 2021

...Strong thunderstorms will impact portions of west central
Appomattox, Campbell, Pittsylvania, western Halifax, and
southeastern Bedford Counties, the City of Danville and the City of
Lynchburg through 815 AM EDT...

At 725 AM EDT, Doppler radar was tracking a band of strong
thunderstorms from near Danville to Chatham to Rustburg, moving
northeast at 45 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Lynchburg...
Danville...
Altavista...
Hurt...
Chatham...
Gretna...
and Ingram.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Weak rotation is indicated within these storm cells. As these are
associated with the remnants of Hurricane Ida, a brief weak tornado
could develop at any time within these stronger storm cells.

&&

LAT...LON 3654 7919 3654 7965 3655 7965 3750 7932
      3747 7919 3740 7912 3741 7911 3739 7907
      3742 7907 3742 7904 3743 7904 3744 7901
      3741 7888
TIME...MOT...LOC 1125Z 216DEG 41KT 3686 7935

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

RAB

Special weather statement, Sep 1, 7:54 AM EDT, 49 minutes before

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Special weather statement, Sep 1, 8:43 AM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 31, 8:00 PM EDT	Areal Flood Advisory	RNK	Craig, Floyd, Giles, Montgomery, City of Radford	5 hr
Aug 31, 8:26 PM EDT	Special Weather Statement	RNK	Craig, Roanoke, City of Roanoke, City of Salem	34 min
Aug 31, 8:40 PM EDT	Areal Flood Advisory	RNK	Bedford, Botetourt, Craig, Floyd, Franklin, Montgomery and 3 more	3 hr
Aug 31, 8:43 PM EDT	Special Weather Statement	RNK	Craig	32 min
Aug 31, 9:12 PM EDT	Special Weather Statement	RNK	Botetourt	33 min
Aug 31, 9:18 PM EDT	Special Weather Statement	RNK	Alleghany, City of Covington	27 min
Aug 31, 9:35 PM EDT	Tornado Warning	RNK	Bedford, Botetourt	25 min
Aug 31, 9:44 PM EDT	Flash Flood Warning	RNK	Botetourt, Craig, Roanoke	5 hr
Aug 31, 9:47 PM EDT	Special Weather Statement	RNK	Alleghany, Bath, City of Covington	28 min
Aug 31, 9:58 PM EDT	Tornado Warning	RNK	Bedford, Botetourt, Rockbridge	32 min
Aug 31, 10:26 PM EDT	Special Weather Statement	RNK	Rockbridge, City of Buena Vista, City of Lexington	34 min
Aug 31, 10:30 PM EDT	Special Weather Statement	RNK	Botetourt	30 min
Aug 31, 10:32 PM EDT	Areal Flood Advisory	RNK	Bedford, Botetourt, Rockbridge	3 hr
Aug 31, 10:44 PM EDT	Tornado Warning	RNK	Amherst, Rockbridge, City of Buena Vista	31 min
Aug 31, 11:10 PM EDT	Areal Flood Advisory	RNK	Amherst, Rockbridge, City of Buena Vista, City of Lexington	3 hr
Aug 31, 11:17 PM EDT	Special Weather Statement	RNK	City of Buena Vista	28 min
Sep 1, 12:38 AM EDT	Special Weather Statement	RNK	Rockbridge	22 min
Sep 1, 5:29 AM EDT	Areal Flood Advisory	RNK	Alleghany, Botetourt, Craig, Roanoke	3 hr
Sep 1, 7:27 AM EDT	Special Weather Statement	RNK	Campbell, Pittsylvania, City of Danville, City of Lynchburg	48 min
Sep 1, 7:54 AM EDT	Special Weather Statement	RNK	Amherst, City of Lynchburg	51 min
Sep 1, 9:17 AM EDT	Areal Flood Advisory	RNK	Franklin	118 min
Sep 1, 11:38 AM EDT	Special Weather Statement	RNK	Floyd, Roanoke, City of Roanoke, City of Salem	22 min
Sep 1, 11:59 AM EDT	Special Weather Statement	RNK	City of Roanoke, City of Salem	46 min
Sep 1, 12:06 PM EDT	Areal Flood Advisory	RNK	Carroll, Floyd, Franklin, Montgomery, Patrick, Roanoke and 1 more	3 hr
Sep 1, 3:47 PM EDT	Areal Flood Advisory	RNK	Patrick	2 hr
Sep 1, 4:35 AM EDT	Areal Flood Advisory	RNK	Ashe, Watauga	3 hr
Sep 1, 2:47 PM EDT	Special Weather Statement	RNK	Stokes	28 min
Sep 1, 3:20 PM EDT	Special Weather Statement	RNK	Stokes	25 min
Sep 1, 3:27 PM EDT	Special Weather Statement	RNK	Wilkes	33 min
Sep 1, 4:12 PM EDT	Special Weather Statement	RNK	Yadkin	33 min

Nearby

Special Weather Statements in Virginia, 2021 Every special weather statement in 2021

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.