Alert archive / North Carolina / Red Flag Warnings in 2011
Red Flag Warning 2, NWS Raleigh, NC
NWS Raleigh, NC issued this red flag warning at Feb 19, 2011, 4:02 AM EST for 31 counties in North Carolina. It took effect at Feb 19, 2011, 9:00 AM EST. It was in force for 12 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
- Feb 19, 2011, 4:02 AM EST (09:02 UTC)
- In effect from
- Feb 19, 2011, 9:00 AM EST
- Expired
- Feb 19, 2011, 9:00 PM EST
- In force
- 12 hr
- Issued by
- NWS Raleigh, NC
All 31 counties
Alamance County, NC, Anson County, NC, Chatham County, NC, Cumberland County, NC, Davidson County, NC, Durham County, NC, Edgecombe County, NC, Forsyth County, NC, Franklin County, NC, Granville County, NC, Guilford County, NC, Halifax County, NC, Harnett County, NC, Hoke County, NC, Johnston County, NC, Lee County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Orange County, NC, Person County, NC, Randolph County, NC, Richmond County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Wayne County, NC, Wilson County, NC
The radar
The Raleigh/Durham radar (KRAX), 45 km from the middle of the area, began a volume at 08:59 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
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 9.0 hours before the alert went out and 93 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
- 3 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1846 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
012 WWUS82 KRAH 190902 RFWRAH URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RALEIGH NC 402 AM EST SAT FEB 19 2011 ...RED FLAG WARNING IN EFFECT TODAY... .WINDY AND DRY CONDITIONS COMBINED WITH DRY FUELS WILL CREATE AN ENHANCED RISK OF WILDFIRES AND ADVERSE FIRE BEHAVIOR TODAY. NCZ007>011-021>028-038>043-073>078-083>086-088-089-200200- /O.UPG.KRAH.FW.A.0002.110219T1400Z-110220T0200Z/ /O.NEW.KRAH.FW.W.0002.110219T1400Z-110220T0200Z/ PERSON-GRANVILLE-VANCE-WARREN-HALIFAX-FORSYTH-GUILFORD-ALAMANCE- ORANGE-DURHAM-FRANKLIN-NASH-EDGECOMBE-DAVIDSON-RANDOLPH-CHATHAM- WAKE-JOHNSTON-WILSON-STANLY-MONTGOMERY-MOORE-LEE-HARNETT-WAYNE- ANSON-RICHMOND-SCOTLAND-HOKE-CUMBERLAND-SAMPSON- 402 AM EST SAT FEB 19 2011 ...RED FLAG WARNING IN EFFECT FROM 9 AM THIS MORNING TO 9 PM EST THIS EVENING... THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM EST THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * TIMING: CRITICAL FIRE WEATHER CONDITIONS WILL DEVELOP FROM MID MORNING THROUGH THIS EVENING. * WIND: NORTHWEST WINDS WILL INCREASE TO 15 TO 25 MPH WITH GUSTS TO 30 MPH. * HUMIDITY: RELATIVE HUMIDITY VALUES WILL DROP BELOW 20 PERCENT OVER MUCH OF CENTRAL NORTH CAROLINA. * TEMPERATURES: HIGHS WILL RANGE FROM THE MID 60S TO NEAR 70 FROM NORTH TO SOUTH. * IMPACTS: ANY FIRES THAT OCCUR WILL QUICKLY SPREAD AND GROW OUT OF CONTROL. FIRES MAY BE EASILY IGNITED BY SPARKS OR BY DISCARDED SMOKING MATERIALS. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ SMITH
2 follow-up statements
668 WWUS82 KRAH 191735 AAA RFWRAH URGENT - FIRE WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE RALEIGH NC 1235 PM EST SAT FEB 19 2011 ...RED FLAG WARNING IN EFFECT TODAY... .WINDY AND DRY CONDITIONS COMBINED WITH DRY FUELS WILL CREATE AN ENHANCED RISK OF WILDFIRES AND ADVERSE FIRE BEHAVIOR TODAY. NCZ007>011-021>028-038>043-073>078-083>086-088-089-200200- /O.CON.KRAH.FW.W.0002.000000T0000Z-110220T0200Z/ PERSON-GRANVILLE-VANCE-WARREN-HALIFAX-FORSYTH-GUILFORD-ALAMANCE- ORANGE-DURHAM-FRANKLIN-NASH-EDGECOMBE-DAVIDSON-RANDOLPH-CHATHAM- WAKE-JOHNSTON-WILSON-STANLY-MONTGOMERY-MOORE-LEE-HARNETT-WAYNE- ANSON-RICHMOND-SCOTLAND-HOKE-CUMBERLAND-SAMPSON- 1235 PM EST SAT FEB 19 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM EST THIS EVENING... * TIMING: CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED THROUGH 9 PM THIS EVENING. * WIND: NORTHWEST WINDS WILL INCREASE TO 15 TO 20 MPH WITH GUSTS UP TO 30 MPH THIS AFTERNOON. WIND GUSTS UP TO 35 MPH WILL BE POSSIBLE NORTHEAST OF THE TRIANGLE. * HUMIDITY: RELATIVE HUMIDITY VALUES BETWEEN 5 AND 15 PERCENT ARE EXPECTED ACROSS ALL OF CENTRAL NORTH CAROLINA THIS AFTERNOON. * TEMPERATURES: HIGHS WILL RANGE FROM THE MID 60S TO NEAR 70 DEGREES FROM NORTH TO SOUTH. * IMPACTS: ANY FIRES THAT OCCUR WILL QUICKLY SPREAD AND GROW OUT OF CONTROL. FIRES MAY BE EASILY IGNITED BY SPARKS OR BY DISCARDED SMOKING MATERIALS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE OCCURRING. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. $$ VINCENT
606 WWUS82 KRAH 200204 RFWRAH URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RALEIGH NC 904 PM EST SAT FEB 19 2011 NCZ007>011-021>028-038>043-073>078-083>086-088-089-200315- /O.EXP.KRAH.FW.W.0002.000000T0000Z-110220T0200Z/ PERSON-GRANVILLE-VANCE-WARREN-HALIFAX-FORSYTH-GUILFORD-ALAMANCE- ORANGE-DURHAM-FRANKLIN-NASH-EDGECOMBE-DAVIDSON-RANDOLPH-CHATHAM- WAKE-JOHNSTON-WILSON-STANLY-MONTGOMERY-MOORE-LEE-HARNETT-WAYNE- ANSON-RICHMOND-SCOTLAND-HOKE-CUMBERLAND-SAMPSON- 904 PM EST SAT FEB 19 2011 ...RED FLAG WARNING HAS EXPIRED... WINDS THIS EVENING HAVE DECREASED SIGNIFICANTLY WITH SUNSET. THUS... THE RED FLAG WARNING IS NO LONGER IN EFFECT. $$ 77
Nearby
Red Flag Warnings in North Carolina, 2011Every red flag warning in 2011
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.