Alert archive / Texas / Flash Flood Warnings in 2003
Flash Flood Warning 15, NWS Amarillo, TX
NWS Amarillo, TX issued this flash flood warning at Sep 7, 2003, 4:41 PM CDT for Hartley County, Moore County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 7, 2003, 4:41 PM CDT (21:41 UTC)
- Expired
- Sep 7, 2003, 7:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Amarillo, TX
- Area
- Counties, with a storm outline in the text
Counties Hartley County, TX, Moore County, TX
The radar
The Amarillo radar (KAMA), 73 km from the middle of the area, began a volume at 21:44 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 9.7 hours before the alert went out and 74 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
- 37 J/kg
- Mixed-layer CIN
- -155 J/kg
- Mixed-layer LCL
- 1300 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KAMA 072146 FFWAMA TXC205-341-080045- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AMARILLO TX 441 PM CDT SUN SEP 7 2003 THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHEASTERN HARTLEY COUNTY IN THE PANHANDLE OF TEXAS SOUTHWESTERN MOORE COUNTY IN THE PANHANDLE OF TEXAS THIS INCLUDES THE CITY OF DUMAS * UNTIL 745 PM CDT * AT 440 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN 6 MILES NORTHEAST OF CHANNING. INDIVIDUAL STORM CELLS HAVE BEEN MOVING OVER THE SAME AREA AND HAVE PRODUCED UP TO 5 INCHES OF RAINFALL. * OTHER LOCATIONS IN THE WARNING INCLUDE CHANNING AND FOUR WAY IF FLASH FLOODING IS OBSERVED ACT QUICKLY MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. NEVER ATTEMPT TO CROSS FLOWING WATER IN AN AUTOMOBILE OR ON FOOT MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. LAT...LON 3586 10236 3564 10237 3563 10186 3587 10192 $$ 05
1 follow-up statement
000 WGUS74 KAMA 072246 FFSAMA TXC205-341-080045- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AMARILLO TX 540 PM CDT SUN SEP 7 2003 ...A FLASH FLOOD WARNING CONTINUES FOR SOUTHEASTERN HARTLEY AND SOUTHWESTERN MOORE COUNTIES UNTIL 745 PM CDT... AT 540 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE VERY HEAVY RAINFALL 15 MILES EAST OF CHANNING. THE STORMS PRODUCING THE VERY HEAVY RAINFALL WERE MOVING TO THE EAST AT 15 MPH. AT 530 PM CDT...UP TO 7 INCHES OF RAIN HAS FALLEN OVER PORTIONS OF THE WARNED AREA. FLOODING HAS BEEN REPORTED ACROSS PORTIONS OF SOUTHWEST MOORE COUNTY WITH WATER OVER THE ROADS AND FLOODING IN THE ADJACENT FIELDS. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF LOW SPOTS ALONG HIGHWAYS...SMALL CREEKS AND NORMALLY DRY WASHES...AS WELL AS LOW LYING RANCH LAND. NEVER ATTEMPT TO CROSS FLOWING WATER IN AN AUTOMOBILE OR ON FOOT MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. LAT...LON 3586 10236 3564 10237 3563 10186 3587 10192 $$ 05
What forecasters said that day
The local office's own words before this flash flood warning 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 warning went out at Sep 7, 4:12 PM CDT, 29 minutes earlier.
Area forecast discussion, Sep 7, 4:12 PM CDT, 29 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AMARILLO TX 407 PM CDT SUN 07 SEP 2003 STRONG CONVECTION WILL CONTINUE TONIGHT THROUGH EARLY MORNING AS THE UPPER LOW AND ITS NEGATIVELY TILTED TROUGH AXIS IS SLOW TO MOVE OUT. NEXT ROUND OF STORMS COULD DEVELOP TUESDAY NIGHT/WEDNESDAY TIMEFRAME IN ADVANCE OF THE NEXT SYSTEM. WITH SURFACE TROUGH REMAINING WEST OF THE AREA...THE CHANCE OF RAIN WILL CONTINUE INTO THURSDAY WHEN A COLD FRONT SLIDES THROUGH THE AREA. A MORE SIGNIFICANT FRONT PUSHES THROUGH NEXT WEEKEND PER GFS SOLUTION. CONFIDENCE IS LOW AFTER COMPARING THE CANADIAN ENSEMBLE AND ECMWF. FCSTID = 08 AMARILLO 58 82 60 86 / 70 30 20 20 BEAVER 58 79 60 88 / 80 40 20 20 BOISE CITY 55 81 58 86 / 80 20 10 30 BORGER 57 81 63 86 / 80 30 20 20 BOYS RANCH 56 80 58 85 / 60 20 10 20 CANYON 58 82 60 86 / 60 20 10 20 CLARENDON 61 83 64 87 / 80 40 20 10 DALHART 56 80 58 85 / 70 20 10 20 GUYMON 57 80 59 87 / 80 30 20 20 HEREFORD 58 83 60 85 / 60 20 10 20 LIPSCOMB 61 81 63 88 / 80 40 20 20 PAMPA 60 82 63 86 / 80 40 20 10 SHAMROCK 62 83 65 88 / 80 40 20 10 WELLINGTON 62 83 65 88 / 80 40 20 10 .AMA... TX...NONE. OK...NONE.
Hazardous weather outlook, Sep 7, 11:43 AM CDT, 4 hours 58 minutes before
OKZ001>003-TXZ001>020-081100- TEXAS/OKLAHOMA PANHANDLES HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AMARILLO TX 1143 AM CDT SUN SEP 7 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA PANHANDLES. .DAY ONE... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. 05
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 3:08 PM CDT | Severe Thunderstorm Warning | AMA | Hartley, Moore | 52 min |
| Sep 7, 4:10 PM CDT | Severe Thunderstorm Warning | AMA | Hartley, Moore | 65 min |
Nearby
Flash Flood Warnings in Texas, 2003Every flash flood warning in 2003
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.