Alert archive / Virginia / Red Flag Warnings in 2021
Red Flag Warning 3, NWS Blacksburg, VA
NWS Blacksburg, VA issued this red flag warning at Apr 30, 2021, 6:41 AM EDT for 6 counties in North Carolina; 11 counties in Virginia. It took effect at Apr 30, 2021, 12:00 PM EDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 30, 2021, 6:41 AM EDT (10:41 UTC)
- In effect from
- Apr 30, 2021, 12:00 PM EDT
- Expired
- Apr 30, 2021, 8:00 PM EDT
- In force
- 8 hr
- Issued by
- NWS Blacksburg, VA
Counties Caswell County, NC, Rockingham County, NC, Stokes County, NC, Surry County, NC, Wilkes County, NC, Yadkin County, NC, Bedford County, VA, Campbell County, VA, Charlotte County, VA, City of Danville, VA, City of Lynchburg, VA, City of Martinsville, VA, Franklin County, VA, Halifax County, VA, Henry County, VA, Patrick County, VA, Pittsylvania County, VA
The radar
The Roanoke radar (KFCX), 57 km from the middle of the area, began a volume at 10:43 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, 10.7 hours before the alert went out and 59 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1225 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 216 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
506 WWUS81 KRNK 301041 RFWRNK URGENT - FIRE WEATHER MESSAGE National Weather Service Blacksburg VA 641 AM EDT Fri Apr 30 2021 ...WINDY AND DRY TODAY... .West to northwest winds will gust over 30 mph today while humidity levels drop into the 20s. This may make for difficult wildfire control. NCZ019-VAZ035-046-047-301145- /O.CAN.KRNK.FW.A.0003.210430T1600Z-210501T0000Z/ Wilkes-Amherst-Appomattox-Buckingham- 641 AM EDT Fri Apr 30 2021 ...FIRE WEATHER WATCH IS CANCELLED FOR WIND AND LOW RELATIVE HUMIDITY FOR THE VIRGINIA FOOTHILLS AND PIEDMONT... The National Weather Service in Blacksburg has cancelled the Fire Weather Watch. Rain overnight has moistened fuels so the threat of uncontrolled fires has lessened. $$ VAZ032>034-043>045-058-059-301845- /O.UPG.KRNK.FW.A.0003.210430T1600Z-210501T0000Z/ /O.NEW.KRNK.FW.W.0003.210430T1600Z-210501T0000Z/ Patrick-Franklin-Bedford-Henry-Pittsylvania-Campbell-Halifax- Charlotte- 641 AM EDT Fri Apr 30 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FOOTHILLS AND PIEDMONT OF VIRGINIA... The National Weather Service in Blacksburg has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon today to 8 PM EDT this evening. The Fire Weather Watch is no longer in effect. * Affected Area...In Virginia, Fire Weather Zone 032 Patrick, Fire Weather Zone 033 Franklin, Fire Weather Zone 034 Bedford, Fire Weather Zone 043 Henry, Fire Weather Zone 044 Pittsylvania, Fire Weather Zone 045 Campbell, Fire Weather Zone 058 Halifax and Fire Weather Zone 059 Charlotte. * Winds...Northwest 15 to 20 mph with gusts up to 40 mph. * Relative Humidity...As low as 25 percent. * Impacts...Any outdoor fire may easily grow out of control with these conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ NCZ003>006-020-301845- /O.UPG.KRNK.FW.A.0003.210430T1600Z-210501T0000Z/ /O.NEW.KRNK.FW.W.0003.210430T1600Z-210501T0000Z/ Surry-Stokes-Rockingham-Caswell-Yadkin- 641 AM EDT Fri Apr 30 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FOOTHILLS AND PIEDMONT OF NORTH CAROLINA... The National Weather Service in Blacksburg has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon today to 8 PM EDT this evening. The Fire Weather Watch is no longer in effect. * Affected Area...In North Carolina, Fire Weather Zone 003 Surry, Fire Weather Zone 004 Stokes, Fire Weather Zone 005 Rockingham, Fire Weather Zone 006 Caswell and Fire Weather Zone 020 Yadkin. * Winds...Northwest 10 to 20 mph with gusts up to 35 mph. * Relative Humidity...As low as 25 percent. * Impacts...Any outdoor fire may easily grow out of control with these conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://www.weather.gov/rnk/fire (all lower case)
3 follow-up statements
538 WWUS81 KRNK 301248 RFWRNK URGENT - FIRE WEATHER MESSAGE National Weather Service Blacksburg VA 848 AM EDT Fri Apr 30 2021 ...WINDY AND DRY TODAY... .West to northwest winds will gust over 30 mph today while humidity levels drop into the 20s. This may make for difficult wildfire control. NCZ019-302100- /O.EXA.KRNK.FW.W.0003.210430T1600Z-210501T0000Z/ Wilkes- 848 AM EDT Fri Apr 30 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WILKES COUNTY... The National Weather Service in Blacksburg has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon today to 8 PM EDT this evening. * Affected Area...In North Carolina, Fire Weather Zone 019 Wilkes. * Winds...Northwest 10 to 20 mph with gusts up to 40 mph. * Relative Humidity...As low as 25 percent. * Impacts...Any outdoor fire may easily grow out of control with these conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ VAZ032>034-043>045-058-059-302100- /O.CON.KRNK.FW.W.0003.210430T1600Z-210501T0000Z/ Patrick-Franklin-Bedford-Henry-Pittsylvania-Campbell-Halifax- Charlotte- 848 AM EDT Fri Apr 30 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FOOTHILLS AND PIEDMONT OF VIRGINIA... * Affected Area...In Virginia, Fire Weather Zone 032 Patrick, Fire Weather Zone 033 Franklin, Fire Weather Zone 034 Bedford, Fire Weather Zone 043 Henry, Fire Weather Zone 044 Pittsylvania, Fire Weather Zone 045 Campbell, Fire Weather Zone 058 Halifax and Fire Weather Zone 059 Charlotte. * Winds...Northwest 15 to 20 mph with gusts up to 45 mph. * Relative Humidity...As low as 24 percent. * Impacts...Any outdoor fire may easily grow out of control with these conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ NCZ003>006-020-302100- /O.CON.KRNK.FW.W.0003.210430T1600Z-210501T0000Z/ Surry-Stokes-Rockingham-Caswell-Yadkin- 848 AM EDT Fri Apr 30 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FOOTHILLS AND PIEDMONT OF NORTH CAROLINA... * Affected Area...In North Carolina, Fire Weather Zone 003 Surry, Fire Weather Zone 004 Stokes, Fire Weather Zone 005 Rockingham, Fire Weather Zone 006 Caswell and Fire Weather Zone 020 Yadkin. * Winds...Northwest 10 to 20 mph with gusts up to 35 mph. * Relative Humidity...As low as 24 percent. * Impacts...Any outdoor fire may easily grow out of control with these conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://www.weather.gov/rnk/fire (all lower case)
508 WWUS81 KRNK 301819 RFWRNK URGENT - FIRE WEATHER MESSAGE National Weather Service Blacksburg VA 219 PM EDT Fri Apr 30 2021 ...WINDY AND DRY THIS AFTERNOON INTO EARLY EVENING... .West to northwest winds will gust over 30 mph through early evening while humidity levels drop into the 20s. This may make for difficult wildfire control. VAZ032>034-043>045-058-059-010000- /O.CON.KRNK.FW.W.0003.000000T0000Z-210501T0000Z/ Patrick-Franklin-Bedford-Henry-Pittsylvania-Campbell-Halifax- Charlotte- 219 PM EDT Fri Apr 30 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FOOTHILLS AND PIEDMONT OF VIRGINIA... * Affected Area...In Virginia, Fire Weather Zone 032 Patrick, Fire Weather Zone 033 Franklin, Fire Weather Zone 034 Bedford, Fire Weather Zone 043 Henry, Fire Weather Zone 044 Pittsylvania, Fire Weather Zone 045 Campbell, Fire Weather Zone 058 Halifax and Fire Weather Zone 059 Charlotte. * Winds...Northwest 15 to 20 mph with gusts up to 40 mph. * Relative Humidity...As low as 24 percent. * Impacts...Any outdoor fire may easily grow out of control with these conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ NCZ003>006-019-020-010000- /O.CON.KRNK.FW.W.0003.000000T0000Z-210501T0000Z/ Surry-Stokes-Rockingham-Caswell-Wilkes-Yadkin- 219 PM EDT Fri Apr 30 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTH CAROLINA FOOTHILLS AND PIEDMONT... * Affected Area...In North Carolina, Fire Weather Zone 003 Surry, Fire Weather Zone 004 Stokes, Fire Weather Zone 005 Rockingham, Fire Weather Zone 006 Caswell, Fire Weather Zone 019 Wilkes and Fire Weather Zone 020 Yadkin. * Winds...Northwest 10 to 20 mph with gusts up to 35 mph. * Relative Humidity...As low as 24 percent. * Impacts...Any outdoor fire may easily grow out of control with these conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://www.weather.gov/rnk/fire (all lower case)
153 WWUS81 KRNK 010028 RFWRNK URGENT - FIRE WEATHER MESSAGE National Weather Service Blacksburg VA 828 PM EDT Fri Apr 30 2021 NCZ003>006-019-020-VAZ032>034-043>045-058-059-010130- /O.EXP.KRNK.FW.W.0003.000000T0000Z-210501T0000Z/ Surry-Stokes-Rockingham-Caswell-Wilkes-Yadkin-Patrick-Franklin- Bedford-Henry-Pittsylvania-Campbell-Halifax-Charlotte- 828 PM EDT Fri Apr 30 2021 ...RED FLAG WARNING HAS EXPIRED FOR VIRGINIA PIEDMONT AND FOOTHILLS... Winds will continue to slowly diminish overnight and relative humidity values will increase into the 60-70% range by morning. Thus the threat for wild fires will decrease overnight. Thus, the Red Flag Warning has expired. For more information from NOAA/National Weather Service visit... http://www.weather.gov/rnk/fire (all lower case) $$ RAB
Nearby
Red Flag Warnings in Virginia, 2021Red Flag Warnings in North Carolina, 2021Every red flag warning 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.