Alert archive / Texas / Tornado Watches in 2004
Tornado Watch 90
The Storm Prediction Center issued this tornado watch at Apr 19, 2004, 3:00 PM CDT for Beaver County, Cimarron County, Texas County, Oklahoma; 33 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 19, 2004, 3:00 PM CDT (20:00 UTC)
- Expired
- Apr 19, 2004, 9:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 36 counties
Beaver County, OK, Cimarron County, OK, Texas County, OK, Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Cochran County, TX, Crosby County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Floyd County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hansford County, TX, Hartley County, TX, Hockley County, TX, Hutchinson County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Moore County, TX, Motley County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX, Terry County, TX, Yoakum County, TX
The radar
The Amarillo radar (KAMA), 94 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.
Warnings issued inside it
15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 3:49 PM CDT | Severe Thunderstorm Warning | AMA | Armstrong, Carson | 56 min |
| Apr 19, 4:32 PM CDT | Severe Thunderstorm Warning | LUB | Yoakum | 58 min |
| Apr 19, 5:30 PM CDT | Severe Thunderstorm Warning | LUB | Yoakum | 45 min |
| Apr 19, 5:42 PM CDT | Severe Thunderstorm Warning | AMA | Hutchinson | 48 min |
| Apr 19, 5:46 PM CDT | Severe Thunderstorm Warning | LUB | Terry | 59 min |
| Apr 19, 6:14 PM CDT | Severe Thunderstorm Warning | LUB | Bailey | 31 min |
| Apr 19, 6:16 PM CDT | Severe Thunderstorm Warning | AMA | Beaver | 59 min |
| Apr 19, 6:23 PM CDT | Severe Thunderstorm Warning | AMA | Hansford | 52 min |
| Apr 19, 6:26 PM CDT | Tornado Warning | LUB | Terry | 34 min |
| Apr 19, 6:29 PM CDT | Severe Thunderstorm Warning | AMA | Hutchinson | 46 min |
| Apr 19, 6:46 PM CDT | Severe Thunderstorm Warning | LUB | Lynn | 59 min |
| Apr 19, 6:55 PM CDT | Severe Thunderstorm Warning | AMA | Carson | 35 min |
| Apr 19, 7:12 PM CDT | Severe Thunderstorm Warning | AMA | Gray | 33 min |
| Apr 19, 7:54 PM CDT | Severe Thunderstorm Warning | AMA | Ochiltree | 51 min |
| Apr 19, 8:46 PM CDT | Tornado Warning | AMA | Ochiltree | 44 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 8.0 hours before the alert went out and 94 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
- 2899 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- -42 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 192003
SEL0
SPC WW 192000
OKZ000-TXZ000-200200-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 90
NWS STORM PREDICTION CENTER NORMAN OK
300 PM CDT MON APR 19 2004
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
OKLAHOMA PANHANDLE
WEST TEXAS AND THE PANHANDLE
EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 300 PM UNTIL 900
PM CDT.
TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES EAST AND WEST
OF A LINE FROM 85 MILES NORTHEAST OF DALHART TEXAS TO 60 MILES
SOUTH SOUTHWEST OF LUBBOCK TEXAS.
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
DISCUSSION...AIRMASS OVER THE TX PANHANDLE IS RAPIDLY DESTABILIZING
THIS AFTERNOON AS SURFACE BOUNDARY LIFTS NORTHWARD AND STRONG
HEATING OCCURS. WEAKENING CAP AND LOW LEVEL WARM ADVECTION IS
EXPECTED TO RESULT IN ISOLATED SEVERE THUNDERSTORM DEVELOPMENT IN
THE NEXT 2-3 HOURS. SUPERCELLS ARE LIKELY WITH THE POTENTIAL FOR
LARGE HAIL. TORNADO THREAT APPEARS GREATEST IN VICINITY OF THE
RETREATING SURFACE BOUNDARY ACROSS THE TX PANHANDLE.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24030.
...HART
365,1001 325,1010 325,1032 365,1024SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 5:18 PM CDT | Mesoscale Discussion | SPC | Beaver, Cimarron, Texas | 117 min |
| Apr 19, 2:02 PM CDT | Mesoscale Discussion | SPC | Andrews, Armstrong, Bailey, Borden, Briscoe, Carson and 27 more | 118 min |
| Apr 19, 4:45 PM CDT | Tornado Watch | SPC | Andrews, Borden, Crane, Crockett, Dawson, Ector and 11 more | 5 hr |
Nearby
Tornado Watches in Texas, 2004Tornado Watches in Oklahoma, 2004Every tornado watch in 2004
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.