Alert archive / Texas / Red Flag Warnings in 2017
Red Flag Warning 4, NWS Brownsville, TX
NWS Brownsville, TX issued this red flag warning at Apr 5, 2017, 5:05 AM CDT for 5 counties in Texas. It took effect at Apr 5, 2017, 1:00 PM CDT. It was in force for 5 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 5, 2017, 5:05 AM CDT (10:05 UTC)
- In effect from
- Apr 5, 2017, 1:00 PM CDT
- Expired
- Apr 5, 2017, 6:00 PM CDT
- In force
- 5 hr
- Issued by
- NWS Brownsville, TX
Counties Brooks County, TX, Hidalgo County, TX, Jim Hogg County, TX, Starr County, TX, Zapata County, TX
The radar
The Corpus Christi radar (KCRP), 153 km from the middle of the area, began a volume at 10:09 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
Brownsville Intl, TX (KBRO), launched 00:00Z, 10.1 hours before the alert went out and 156 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
- 1165 J/kg
- Mixed-layer CIN
- -356 J/kg
- Mixed-layer LCL
- 1672 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
837 WWUS84 KBRO 051005 RFWBRO URGENT - FIRE WEATHER MESSAGE National Weather Service Brownsville TX 505 AM CDT Wed Apr 5 2017 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED OVER WESTERN PORTIONS OF DEEP SOUTH TEXAS TODAY... .A COLD FRONT WILL MOVE THROUGH DEEP SOUTH TEXAS EARLY THIS MORNING. STRONG NORTHERLY WINDS BEHIND THE FRONT WILL USHER IN MUCH DRIER AIR BY MID-DAY. WITH DRY FUELS EXPECTED OVER MOST OF THE AREA...THIS COMBINATION IS EXPECTED TO PRODUCE CRITICAL FIRE WEATHER CONDITIONS THIS AFTERNOON FOR THE WESTERN ZONES. TXZ250-251-254-255-051115- /O.CAN.KBRO.FW.A.0004.170405T1700Z-170406T0100Z/ Brooks-Kenedy-Inland Willacy-Inland Cameron- 505 AM CDT Wed Apr 5 2017 ...FIRE WEATHER WATCH IS CANCELLED FOR STRONG WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 250, 251, 254, AND 255... The National Weather Service in Brownsville has cancelled the Fire Weather Watch. Although fuels are expected to remain dry, the winds and relative humidity values will not reach Red Flag Warning criteria concurrently. There will still be a threat of erratic fire behavior in Brooks County. $$ TXZ248-249-252-253-051815- /O.UPG.KBRO.FW.A.0004.170405T1700Z-170406T0100Z/ /O.NEW.KBRO.FW.W.0004.170405T1800Z-170405T2300Z/ Zapata-Jim Hogg-Starr-Hidalgo- 505 AM CDT Wed Apr 5 2017 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM CDT THIS EVENING FOR STRONG WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 248, 249, 252, AND 253... The National Weather Service in Brownsville has issued a Red Flag Warning, which is in effect from 1 PM this afternoon to 6 PM CDT this evening. The Fire Weather Watch is no longer in effect. * WIND...20-FOOT WINDS FROM 15 TO 20 MPH THIS AFTERNOON. * HUMIDITY...15 TO 20 PERCENT. * THUNDERSTORMS...NONE. * HIGHEST THREAT...IS LOCATED ACROSS THE MIDDLE AND UPPER PORTIONS OF THE RIO GRANDE VALLEY...INCLUDING THE NORTHWEST RANCHLANDS...WHERE RELATIVE HUMIDITY VALUES WILL BE LOWEST. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. AVOID CONTACT BETWEEN HOT OBJECTS AND GRASSES...WHICH CAN BURN HOT AND QUICKLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means critical fire weather conditions are occurring now...or will shortly. In general...these conditions include sustained 20 foot winds of 25 MPH or greater...humidity ranging from below 25 percent in Zapata County to below 45 percent along the coast...each lasting for 2 hours or longer... and cured fuels. Humidity below 25 percent in most areas will trigger fire danger at lower wind speeds. Detailed decision tables are found at HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. && $$ 53
2 follow-up statements
389 WWUS84 KBRO 051608 RFWBRO URGENT - FIRE WEATHER MESSAGE National Weather Service Brownsville TX 1108 AM CDT Wed Apr 5 2017 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED OVER WESTERN PORTIONS OF DEEP SOUTH TEXAS TODAY... .A COLD FRONT WILL MOVE THROUGH DEEP SOUTH TEXAS EARLY THIS MORNING. STRONG NORTHERLY WINDS BEHIND THE FRONT WILL USHER IN MUCH DRIER AIR BY MID-DAY. WITH DRY FUELS EXPECTED OVER MOST OF THE AREA...THIS COMBINATION IS EXPECTED TO PRODUCE CRITICAL FIRE WEATHER CONDITIONS THIS AFTERNOON FOR THE WESTERN ZONES. TXZ250-052300- /O.EXA.KBRO.FW.W.0004.170405T1800Z-170405T2300Z/ Brooks- 1108 AM CDT Wed Apr 5 2017 ...RED FLAG WARNING IN EFFECT UNTIL 6 PM CDT THIS EVENING FOR STRONG WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 248, 249, 252, AND 253... The National Weather Service in Brownsville has issued a Red Flag Warning, which is in effect until 6 PM CDT this evening. * WIND...20-FOOT WINDS FROM 15 TO 20 MPH THIS AFTERNOON. * HUMIDITY...15 TO 20 PERCENT. * THUNDERSTORMS...NONE. * HIGHEST THREAT...IS LOCATED ACROSS THE MIDDLE AND UPPER PORTIONS OF THE RIO GRANDE VALLEY...INCLUDING THE NORTHWEST RANCHLANDS...WHERE RELATIVE HUMIDITY VALUES WILL BE LOWEST. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. AVOID CONTACT BETWEEN HOT OBJECTS AND GRASSES...WHICH CAN BURN HOT AND QUICKLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means critical fire weather conditions are occurring now...or will shortly. In general...these conditions include sustained 20 foot winds of 25 MPH or greater...humidity ranging from below 25 percent in Zapata County to below 45 percent along the coast...each lasting for 2 hours or longer... and cured fuels. Humidity below 25 percent in most areas will trigger fire danger at lower wind speeds. Detailed decision tables are found at HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. && $$ TXZ248-249-252-253-052300- /O.CON.KBRO.FW.W.0004.170405T1800Z-170405T2300Z/ Zapata-Jim Hogg-Starr-Hidalgo- 1108 AM CDT Wed Apr 5 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING FOR STRONG WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 248, 249, 252, AND 253... * WIND...20-FOOT WINDS FROM 15 TO 20 MPH THIS AFTERNOON. * HUMIDITY...15 TO 20 PERCENT. * THUNDERSTORMS...NONE. * HIGHEST THREAT...IS LOCATED ACROSS THE MIDDLE AND UPPER PORTIONS OF THE RIO GRANDE VALLEY...INCLUDING THE NORTHWEST RANCHLANDS...WHERE RELATIVE HUMIDITY VALUES WILL BE LOWEST. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. AVOID CONTACT BETWEEN HOT OBJECTS AND GRASSES...WHICH CAN BURN HOT AND QUICKLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means critical fire weather conditions are occurring now...or will shortly. In general...these conditions include sustained 20 foot winds of 25 MPH or greater...humidity ranging from below 25 percent in Zapata County to below 45 percent along the coast...each lasting for 2 hours or longer... and cured fuels. Humidity below 25 percent in most areas will trigger fire danger at lower wind speeds. Detailed decision tables are found at HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. && $$ CASTILLO
775 WWUS84 KBRO 052328 RFWBRO URGENT - FIRE WEATHER MESSAGE National Weather Service Brownsville TX 628 PM CDT Wed Apr 5 2017 ...WINDS ARE DECREASING AND HUMIDITY VALUES WILL RECOVER... .HIGH PRESSURE WILL BUILD INTO THE REGION THIS EVENING WITH WINDS EXPECTED TO DECREASE MORE TONIGHT ESPECIALLY AFTER SUNSET. MEANWHILE, RELATIVE HUMIDITY VALUES WILL INCREASE OVERNIGHT. TXZ248>250-252-253-060030- /O.EXP.KBRO.FW.W.0004.000000T0000Z-170405T2300Z/ Zapata-Jim Hogg-Brooks-Starr-Hidalgo- 628 PM CDT Wed Apr 5 2017 ...RED FLAG WARNING HAS EXPIRED FOR STRONG WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 248, 249, 252, AND 253... THE COMBINATION OF LIGHTER WINDS AND SLOWLY INCREASING RELATIVE HUMIDITY VALUES WILL RESULT IN A LOW RISK OF WILDFIRE DANGER AND SPREAD THROUGH THE OVERNIGHT HOURS. THERE COULD STILL BE AN ELEVATED RISK OF ERRATIC FIRE BEHAVIOR ACROSS BROOKS AND HIDALGO COUNTIES THROUGH SUNSET. $$
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 5, 4:44 AM CDT | Gale Warning | BRO | 8 hr | |
| Apr 5, 4:44 AM CDT | Small Craft Advisory | BRO | 23 hr | |
| Apr 5, 4:44 AM CDT | Small Craft Advisory for Winds | BRO | 14 hr | |
| Apr 5, 4:50 AM CDT | Wind Advisory | BRO | Kenedy | 8 hr |
Nearby
Red Flag Warnings in Texas, 2017Every red flag warning in 2017
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.