Alert archive / Texas / Red Flag Warnings in 2009
Red Flag Warning 14, NWS Fort Worth, TX
NWS Fort Worth, TX issued this red flag warning at Apr 5, 2009, 4:22 AM CDT for 6 counties in Texas. It took effect at Apr 5, 2009, 10:00 AM CDT. It was in force for 10 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, 2009, 4:22 AM CDT (09:22 UTC)
- In effect from
- Apr 5, 2009, 10:00 AM CDT
- Expired
- Apr 5, 2009, 8:00 PM CDT
- In force
- 10 hr
- Issued by
- NWS Fort Worth, TX
Counties Eastland County, TX, Jack County, TX, Montague County, TX, Palo Pinto County, TX, Stephens County, TX, Young County, TX
The radar
The Dyess AFB radar (KDYX), 92 km from the middle of the area, began a volume at 09:26 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
Fort Worth, TX (KFWD), launched 00:00Z, 9.4 hours before the alert went out and 107 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
- 242 J/kg
- Mixed-layer CIN
- -187 J/kg
- Mixed-layer LCL
- 1894 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 161 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.0
What forecasters said that day
The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Fort Worth, TX wrote its last area forecast discussion before this red flag warning went out at Apr 5, 3:44 AM CDT, 38 minutes earlier.
Area forecast discussion, Apr 5, 3:44 AM CDT, 38 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FORT WORTH TX 344 AM CDT SUN APR 5 2009 ...WIND ADVISORY ALL BUT SOUTHEAST COUNTIES TODAY UNTIL 8 PM... ...FREEZE WATCH NORTHWEST ONE HALF LATE MONDAY NIGHT... .DISCUSSION... A STRONG COLD FRONT IS PUSHING THROUGH THE CWA EARLY THIS MORNING AND SHOULD BE IN THE PALESTINE TO CAMERON AREA BY MID MORNING. THE FRONT IS EXPECTED TO REMAIN DRY AS IT MOVES THROUGH THE REST OF THE CWA THIS MORNING...BUT WE/LL KEEP 10 POPS OVER THE SOUTHEAST COUNTIES EARLY THIS MORNING. WE/RE ISSUING A WIND ADVISORY FOR ALL BUT THE SOUTHEAST COUNTIES TODAY UNTIL SUNSET. GUSTS OF 35 TO 45 MPH ARE OCCURRING UPSTREAM AND SHOULD MIGRATE INTO NORTH TEXAS BY LATE MORNING. THIS AND RELATIVE HUMIDITY FALLING INTO THE BELOW 30 ALSO JUSTIFY A RED FLAG WARNING NORTHWEST OF A GORMAN TO NOCONA LINE AS WELL. MASSIVE CANADIAN HIGH PRESSURE WILL BUILD IN BEHIND THE COLD FRONT WITH BELOW NORMAL TEMPERATURES THROUGH TUESDAY MORNING. WE/VE ISSUED A FREEZE WATCH FOR THE NORTHWEST 1/2 CWA LATE MONDAY NIGHT THROUGH TUESDAY MID MORNING WHERE LOWS IN THE UPPER 20S TO LOWER 30S ARE EXPECTED. AS FOR MONDAY...LOWS WILL BE IN THE MID 30S OVER THE NORTH HALF. TEMPERATURES BEGIN THEIR REBOUND TUESDAY WITH ABOVE NORMAL READINGS DEVELOPING WEST WEDNESDAY AND OVERTAKING THE CWA ON THURSDAY AS OUR NEXT LEE-SIDE TROUGH UNDERGOES CYCLOGENESIS AND EJECTS ACROSS OKLAHOMA ON THURSDAY. THERE IS A LOW CHANCE POP FOR CONVECTION ALONG/EAST OF I-35 LATE WEDNESDAY NIGHT AND THURSDAY MORNING. AIR MASS BEHIND THE SYSTEM IS NOT AS COLD AS THE PREVIOUS ONE. FRIDAY IS LOOKING DRY AND MILD. LOOKING HEAD INTO NEXT WEEKEND...BOTH THE GFS AND ECMWF ARE PRODUCING ANOTHER SOUTHERN STREAM CYCLONE. THE GFS FOLLOWS A SLIGHTLY FURTHER SOUTHERN TRACK THAN THOSE OVER THE PAST 10 DAYS. HOWEVER...THE ECMWF DRIVES THE CYCLONE SOUTH AND ACROSS THE HEART OF TEXAS. THIS TRAJECTORY SEEMS TOO FAR SOUTH FOR APRIL. ALSO... THE MODELS ARE PRODUCING CONSIDERABLE RAINFALL WITH THIS SYSTEM. 75 && .PRELIMINARY POINT TEMPS/POPS... DALLAS-FT. WORTH, TX 62 39 59 33 68 / 5 5 5 5 5 WACO, TX 68 41 66 33 74 / 5 5 5 5 5 PARIS, TX 57 35 56 29 63 / 20 5 5 5 5 DENTON, TX 61 34 57 29 67 / 5 5 5 5 5 MCKINNEY, TX 60 36 57 30 66 / 5 5 5 5 5 DALLAS, TX 64 38 60 36 67 / 5 5 5 5 5 TERRELL, TX 63 38 60 29 65 / 5 5 5 5 5 CORSICANA, TX 66 37 61 34 67 / 10 5 5 5 5 TEMPLE, TX 68 40 65 31 74 / 5 5 5 5 5 && .FWD WATCHES/WARNINGS/ADVISORIES... FREEZE WATCH FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING FOR TXZ091>095-100>107-115>123-129>134-141>145. WIND ADVISORY FROM 10 AM THIS MORNING TO 8 PM CDT THIS EVENING FOR TXZ091>095-100>107-115>123-129>134-141>146-156>161-174. RED FLAG WARNING FROM 10 AM THIS MORNING TO 8 PM CDT THIS EVENING FOR TXZ091-100-101-115-116-129. && 07/75
Hazardous weather outlook, Apr 4, 3:04 PM CDT, 13 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE FORT WORTH TX 304 PM CDT SAT APR 4 2009 TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-051130- MONTAGUE-COOKE-GRAYSON-FANNIN-LAMAR-YOUNG-JACK-WISE-DENTON-COLLIN- HUNT-DELTA-HOPKINS-STEPHENS-PALO PINTO-PARKER-TARRANT-DALLAS- ROCKWALL-KAUFMAN-VAN ZANDT-RAINS-EASTLAND-ERATH-HOOD-SOMERVELL- JOHNSON-ELLIS-HENDERSON-COMANCHE-MILLS-HAMILTON-BOSQUE-HILL-NAVARRO- FREESTONE-ANDERSON-LAMPASAS-CORYELL-BELL-MCLENNAN-FALLS-LIMESTONE- LEON-MILAM-ROBERTSON- 304 PM CDT SAT APR 4 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS. .DAY ONE...TONIGHT. ISOLATED THUNDERSTORMS WILL BE POSSIBLE LATE TONIGHT NORTHEAST OF A BONHAM TO EMORY LINE. CLOUD TO GROUND LIGHTNING AND SMALL HAIL WILL ACCOMPANY THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THERE WILL BE AN ELEVATED FIRE DANGER BEHIND A COLD FRONT ON SUNDAY ACROSS MAINLY WESTERN NORTH TEXAS WITH GUSTY NORTHWEST WINDS AND LOW HUMIDITIES. THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY NIGHT AND THURSDAY MORNING OVER THE EASTERN HALF OF NORTH TEXAS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
The office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 5, 3:48 AM CDT | Freeze Watch | FWD | Bell, Bosque, Collin, Comanche, Cooke, Coryell and 31 more | 23 hr |
| Apr 5, 3:48 AM CDT | Wind Advisory | FWD | Bell, Bosque, Collin, Comanche, Cooke, Coryell and 35 more | 16 hr |
Nearby
Red Flag Warnings in Texas, 2009Every red flag warning in 2009
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.