Alert archive / New Mexico / Tornado Watches in 2004

Tornado Watch 850

October 5, 200410 counties in New Mexico

The Storm Prediction Center issued this tornado watch at Oct 5, 2004, 11:55 AM MDT for 10 counties in New Mexico. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Oct 5, 2004, 11:55 AM MDT (17:55 UTC)
Expired
Oct 5, 2004, 6:00 PM MDT
In force
6 hr
Issued by
the Storm Prediction Center

Counties Bernalillo County, NM, Chaves County, NM, De Baca County, NM, Guadalupe County, NM, Lincoln County, NM, Sandoval County, NM, Santa Fe County, NM, Socorro County, NM, Torrance County, NM, Valencia County, NM

The radar

The Albuquerque radar (KABX), 99 km from the middle of the area, began a volume at 17:59 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

22 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Oct 5, 12:04 PM MDTFlash Flood WarningABQDe Baca116 min
Oct 5, 12:09 PM MDTSevere Thunderstorm WarningABQSandoval36 min
Oct 5, 12:20 PM MDTSevere Thunderstorm WarningABQValencia40 min
Oct 5, 12:46 PM MDTSevere Thunderstorm WarningABQSandoval, Valencia44 min
Oct 5, 1:06 PM MDTSevere Thunderstorm WarningABQLincoln39 min
Oct 5, 1:29 PM MDTSevere Thunderstorm WarningABQValencia46 min
Oct 5, 1:29 PM MDTSevere Thunderstorm WarningABQBernalillo61 min
Oct 5, 1:45 PM MDTSevere Thunderstorm WarningABQLincoln45 min
Oct 5, 1:53 PM MDTSevere Thunderstorm WarningABQSocorro67 min
Oct 5, 1:58 PM MDTTornado WarningABQValencia17 min
Oct 5, 2:01 PM MDTSevere Thunderstorm WarningABQTorrance59 min
Oct 5, 2:06 PM MDTFlash Flood WarningABQTorrance84 min
Oct 5, 2:14 PM MDTTornado WarningABQTorrance31 min
Oct 5, 2:29 PM MDTTornado WarningABQSocorro46 min
Oct 5, 2:30 PM MDTSevere Thunderstorm WarningABQLincoln15 min
Oct 5, 2:39 PM MDTSevere Thunderstorm WarningABQBernalillo51 min
Oct 5, 3:07 PM MDTTornado WarningABQChaves38 min
Oct 5, 3:45 PM MDTTornado WarningABQChaves45 min
Oct 5, 4:30 PM MDTTornado WarningABQChaves45 min
Oct 5, 4:34 PM MDTSevere Thunderstorm WarningABQLincoln56 min
Oct 5, 5:16 PM MDTTornado WarningABQChaves44 min
Oct 5, 5:25 PM MDTFlash Flood WarningABQDe Baca95 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

Albuquerq/Krtlnd, NM (KABQ), launched 12:00Z, 5.9 hours before the alert went out and 76 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.

Skew-T log-pSkew-T log-p diagram, Albuquerq/Krtlnd, NM at 12:00Z on 2004-10-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 465 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albuquerq/Krtlnd, NM at 12:00Z on 2004-10-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 179 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
465 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
1157 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
179 m²/s²
0-3 km storm-relative helicity
312 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS20 KWNS 051756
SEL0  
SPC WW 051755
NMZ000-060000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 850
NWS STORM PREDICTION CENTER NORMAN OK
1155 AM MDT TUE OCT 5 2004

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       CENTRAL AND EAST CENTRAL NEW MEXICO

EFFECTIVE THIS TUESDAY MORNING AND EVENING FROM 1155 AM UNTIL 600
PM MDT.

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 75 STATUTE MILES EITHER SIDE
OF A LINE FROM 55 MILES WEST SOUTHWEST OF ALBUQUERQUE NEW MEXICO
TO 65 MILES NORTHEAST OF ROSWELL NEW MEXICO.

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...STORMS CONTINUE TO DEVELOP/INTENSIFY AHEAD OF ADVANCING
MID/UPPER LEVEL TROUGH CENTERED OVER EXTREME SWRN CO AT THIS TIME. 
THERMAL GRADIENT DUE TO CONVECTIVE BOUNDARY EXTENDS SE-NW ACROSS
AREA WHICH IS EXPECTED TO ENHANCE CONVERGENCE/LIFT.  AIR MASS SOUTH
OF THIS BOUNDARY IS VERY UNSTABLE WITH SBCAPE TO 2500 J/KG.  DEEP
LAYER SHEAR OF 40-50 KT AND STORMS IN THE PROXIMITY OF THE BOUNDARY
COULD PRODUCE SOME TORNADOES ACCOMPANIED BY SOME LARGE HAIL.

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
450. MEAN STORM MOTION VECTOR 23035.


...MCCARTHY

354,1071 350,1032 325,1040 334,1074

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 5, 1:57 AM MDTMesoscale DiscussionSPCCurry, De Baca, Guadalupe, Quay, Roosevelt63 min
Oct 5, 4:53 AM MDTMesoscale DiscussionSPCChaves, De Baca, Doña Ana, Lincoln, Otero, Roosevelt67 min
Oct 5, 9:20 AM MDTMesoscale DiscussionSPCCurry, De Baca, Guadalupe, Lincoln, Quay, Roosevelt and 3 more115 min
Oct 5, 1:48 PM MDTMesoscale DiscussionSPCBernalillo, Eddy, Lincoln, Los Alamos, Otero, Rio Arriba and 5 more117 min
Oct 5, 2:55 PM MDTSevere Thunderstorm WatchSPCDoña Ana, Eddy, Lea, Otero5 hr
Oct 5, 4:15 PM MDTMesoscale DiscussionSPCDoña Ana, Eddy, Lea, Otero90 min
Oct 5, 5:14 PM MDTMesoscale DiscussionSPCChaves, Eddy, Lea91 min
Oct 5, 5:35 PM MDTTornado WatchSPCChaves, Eddy, Lea, Otero4 hr

Nearby

Tornado Watches in New Mexico, 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.