Alert archive / Texas / Flash Flood Watches in 2015
Flash Flood Watch 1, NWS Amarillo, TX
NWS Amarillo, TX issued this flash flood watch at Apr 26, 2015, 3:06 PM CDT for 20 counties in Texas; Beaver County, Texas County, Oklahoma. It took effect at Apr 26, 2015, 4:00 PM CDT. It was in force for 24 hr.
The area
The counties it named.
The facts
- Issued
- Apr 26, 2015, 3:06 PM CDT (20:06 UTC)
- In effect from
- Apr 26, 2015, 4:00 PM CDT
- Expired
- Apr 27, 2015, 3:55 PM CDT
- In force
- 24 hr
- Issued by
- NWS Amarillo, TX
- Flood severity
- None
All 22 counties
Beaver County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Collingsworth County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Wheeler County, TX
The radar
The Amarillo radar (KAMA), 63 km from the middle of the area, began a volume at 20:05 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 8.1 hours before the alert went out and 63 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
- 3374 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -41 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Amarillo, TX wrote its last area forecast discussion before this flash flood watch went out at Apr 26, 2:59 PM CDT, 7 minutes earlier.
Area forecast discussion, Apr 26, 2:59 PM CDT, 7 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AMARILLO TX
259 PM CDT SUN APR 26 2015
.DISCUSSION...
UPPER LEVEL LOW OVER SOUTHERN NEW MEXICO WILL SLOWLY MOVE EAST
NORTHEAST ACROSS WEST TEXAS AND INTO WESTERN OKLAHOMA BY TUESDAY
MORNING. SEVERAL BOUNDARIES ACROSS THE SOUTHWEST TEXAS PANHANDLE
SHOULD HELP DEVELOP CONVECTION. SEVERAL UPPER LEVEL MINOR VORT MAXES
WILL ALSO ROTATE NORTHEAST FROM THE UPPER LOW THIS AFTERNOON AND
OVERNIGHT. UPPER LEVEL DIFFLUENCE WILL ALSO BE PRESENT OVER THE
PANHANDLES. WITH ALL OF THIS IN MIND...BELIEVE THAT THE PANHANDLES
MAY SEE SOME SEVERE THUNDERSTORMS...BUT ALSO HEAVY RAIN WILL BE A
THREAT. HAVE GONE AHEAD AND ISSUED A FLASH FLOOD WATCH OVER
ABOUT THE EASTERN HALF OF THE PANHANDLES VALID FROM NOW THROUGH
MONDAY AFTERNOON. THIS AREA STANDS THE BEST CHANCE OF HEAVY RAIN-
PRODUCING THUNDERSTORMS. THE RAIN WILL SLOWLY DECREASE MONDAY NIGHT
INTO TUESDAY MORNING AS THE UPPER LOW PULLS AWAY FROM THE
PANHANDLES.
THE PANHANDLES WILL DRY OUT AND WARM UP THROUGH THE END OF THE
WEEK. A POSITIVELY TILTED UPPER TROUGH WILL TRAVERSE THE PLAINS
WEDNESDAY THROUGH FRIDAY. THERE IS AN OUTSIDE CHANCE OF SHOWERS AND
THUNDERSTORMS ACROSS THE NORTH ON SATURDAY AS A WEAK DISTURBANCE
TRIES TO IMPINGE ON THE UPPER RIDGE.
&&
.HYDROLOGY...
RAINFALL MAY EXCEED FLASH FLOOD GUIDANCE ESPECIALLY IN THE
EASTERN PANHANDLES...SO WILL HAVE TO WATCH FOR THE POSSIBILITY
OF SOME FLOODING ISSUES. WIDESPREAD 1 TO 3 INCHES OF RAIN WITH
LOCALLY HEAVIER AMOUNTS WILL BE POSSIBLE.
&&
.PRELIMINARY POINT TEMPS/POPS...
AMARILLO TX 47 49 37 61 40 / 90 80 30 10 10
BEAVER OK 46 49 39 65 41 / 100 90 40 5 10
BOISE CITY OK 42 50 35 62 39 / 100 80 10 5 5
BORGER TX 47 48 40 64 42 / 90 90 30 10 10
BOYS RANCH TX 47 49 37 63 39 / 90 80 20 10 5
CANYON TX 48 50 38 61 39 / 80 70 30 20 10
CLARENDON TX 51 54 42 62 44 / 80 80 40 20 10
DALHART TX 44 46 36 62 39 / 100 80 20 5 10
GUYMON OK 45 48 38 64 40 / 100 90 20 0 10
HEREFORD TX 47 49 38 61 39 / 80 70 20 10 5
LIPSCOMB TX 48 49 41 64 42 / 100 90 50 10 10
PAMPA TX 47 48 39 61 42 / 90 90 40 10 10
SHAMROCK TX 52 54 43 63 43 / 90 80 50 20 10
WELLINGTON TX 54 56 45 64 44 / 80 80 50 20 10
&&
.AMA WATCHES/WARNINGS/ADVISORIES...
TX...FLASH FLOOD WATCH THROUGH MONDAY EVENING FOR THE FOLLOWING
ZONES: ARMSTRONG...CARSON...COLLINGSWORTH...DONLEY...GRAY...
HANSFORD...HEMPHILL...HUTCHINSON...LIPSCOMB...OCHILTREE...
ROBERTS...WHEELER.
OK...FLASH FLOOD WATCH THROUGH MONDAY EVENING FOR THE FOLLOWING
ZONES: BEAVER...TEXAS.
&&
06/15Hazardous weather outlook, Apr 26, 12:53 PM CDT, 2 hours 13 minutes before
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</html>The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 3:08 PM CDT | Special Weather Statement | AMA | Hartley | 52 min |
| Apr 26, 3:41 PM CDT | Severe Thunderstorm Warning | AMA | Hartley, Moore | 64 min |
| Apr 26, 4:00 PM CDT | Special Weather Statement | AMA | Potter, Randall | 60 min |
| Apr 26, 4:11 PM CDT | Severe Thunderstorm Warning | AMA | Armstrong, Carson, Donley, Gray | 54 min |
| Apr 26, 4:41 PM CDT | Severe Thunderstorm Warning | AMA | Moore | 64 min |
| Apr 26, 5:02 PM CDT | Special Weather Statement | AMA | Carson | 58 min |
| Apr 26, 5:18 PM CDT | Severe Thunderstorm Warning | AMA | Carson | 57 min |
| Apr 26, 5:40 PM CDT | Areal Flood Advisory | AMA | Carson | 4 hr |
Nearby
Flash Flood Watches in Texas, 2015Flash Flood Watches in Oklahoma, 2015Every flash flood watch in 2015
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.