Alert archive / New Mexico / Flash Flood Warnings in 2008

Flash Flood Warning 26, NWS El Paso, TX

July 27, 2008Otero County, New Mexico

NWS El Paso, TX issued this flash flood warning at Jul 27, 2008, 7:46 AM MDT for Otero County, New Mexico. It was in force for 6 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
Jul 27, 2008, 7:46 AM MDT (13:46 UTC)
Expired
Jul 27, 2008, 1:45 PM MDT
In force
6 hr
Issued by
NWS El Paso, TX
Area
Storm-based polygon
Flood severity
None

County Otero County, NM

The radar

The Holloman AFB radar (KHDX), 63 km from the middle of the area, began a volume at 13:47 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

Santa Teresa, NM (KEPZ), launched 12:00Z, 1.8 hours before the alert went out and 122 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, Santa Teresa, NM at 12:00Z on 2008-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 72 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Santa Teresa, NM at 12:00Z on 2008-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 square meters per square second.1939Sfc1 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
72 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
737 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 El Paso, TX wrote its last area forecast discussion before this flash flood warning went out at Jul 27, 3:55 AM MDT, 3 hours 51 minutes earlier.

Area forecast discussion, Jul 27, 3:55 AM MDT, 3 hours 51 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EL PASO TX/SANTA TERESA NM
355 AM MDT SUN JUL 27 2008

.SYNOPSIS...
TROPICAL MOISTURE ASSOCIATED WITH THE REMNANTS OF HURRICANE DOLLY
WILL REMAIN OVER THE BORDERLAND TODAY AND TONIGHT BEFORE DRIFTING
OFF TO THE NORTHEAST ON MONDAY. THIS WILL KEEP NUMEROUS SHOWERS AND
A FEW THUNDERSTORMS WITH HEAVY RAINFALL IN THE FORECAST THROUGH
TONIGHT. SHOWERS AND THUNDERSTORMS WILL BECOME ISOLATED TUESDAY AND
BEYOND AS UPPER HIGH REFORMS OVER ARIZONA AND WESTERN NEW MEXICO
CURTAILS ACTIVITY.  TEMPERATURES WILL WARM BACK TO ABOVE NORMAL AS
MOISTURE DECREASES AND SKIES CLEAR.

&&

.DISCUSSION...
AMPLE TROPICAL MOISTURE REMAINS IN PLACE THIS MORNING DESPITE THE
LOSS OF MOST OR ALL ORGANIZATION OF DOLLY. MODELS STILL SHOWING PWS
OF 1.5 TO 1.8 INCHES. UPPER LOW LOCATION A BIT FUZZY BUT APPEARS TO
BE ROUGHLY OVER THE SACRAMENTO MOUNTAINS AND CONTINUING TO SLOWLY
LIFT NORTHEAST. TROUGH FROM LOW WILL CONTINUE TO DRAPE OVER THE
EASTERN CWA TODAY AND TONIGHT. COMBINE THIS WITH THE HIGH PWS AND
FLOODING POTENTIAL WILL REMAIN WITH US TODAY. WILL LEAVE FLASH FLOOD
WATCH CONTINUE THROUGH THIS AFTERNOON THOUGH MAYBE POTENTIAL
DECREASING FOR THE WESTERN CWA.

TROUGH SHIFTING EAST OF AREA MONDAY BUT LOTS OF RESIDUAL MOISTURE
STILL AROUND SO WILL KEEP POPS IN SCATTERED CATEGORY. MODELS STAYING
PRETTY CONSISTENT WITH THE REST OF THE NEW WEEK. UPPER HIGH
REFORMING OVER ARIZONA AND WESTERN NEW MEXICO TUESDAY AND BEYOND...
REDUCING THUNDERSTORM COVERAGE BACK TO ISOLATED...THE NORTHERLY FLOW
THIS PATTERN SETS UP WILL LIKELY BRING NUMEROUS WEAK SHORT WAVES
DOWN OVER THE AREA.

&&

.AVIATION...
VALID 27/12Z-28/12Z...
CONSIDERABLE OVERCAST LAYERS THIS MORNING...REMAINING GENLY VFR N OF
A LINE FROM LORDSBURG-DEMING-ALAMOGORDO. TO THE SOUTH OF THAT LINE
OCNL MVFR CIG -SHRA CONTINUE FOR THE NEXT 3-6 HOURS. AFT 21Z...OCNL
MVFR CIG CONTG WITH -SHRA. ADDNLY...ISOLD IFR CIG/VSBY ASSOCD WITH
+TSRA.

&&

.FIRE WEATHER...
NO FIRE WX ISSUES ANTICIPATED AS WIDESPREAD TROPICAL MOISTURE HAS
MORE OR LESS SATURATED THE AREA.  THINGS WILL RETURN TO THE NORMAL
MONSOONAL PATTERN BY EARLY NEXT WEEK.

&&

.PRELIMINARY POINT TEMPS/POPS...
EL PASO                 80  71  88  73  94 /  60  60  40  20  10
SIERRA BLANCA TX        79  65  86  66  92 /  50  60  50  20  10
LAS CRUCES              80  70  87  71  93 /  60  60  30  20  10
ALAMOGORDO              78  68  86  70  92 /  40  60  50  20  10
CLOUDCROFT              63  51  69  51  74 /  40  60  50  20  20
TRUTH OR CONSEQUENCES   79  68  85  69  91 /  60  40  30  20  10
SILVER CITY             78  61  82  63  87 /  50  30  30  20  20
DEMING                  81  69  87  69  93 /  60  40  30  20  10
LORDSBURG               84  69  88  69  93 /  50  30  30  20  10

&&

.EPZ WATCHES/WARNINGS/ADVISORIES...
NM...FLASH FLOOD WATCH THROUGH THIS AFTERNOON FOR NMZ022>025-030>032.

TX...FLASH FLOOD WATCH THROUGH THIS AFTERNOON FOR TXZ055-056.

&&

HEFNER

In the hours before

Special weather statement, Jul 27, 7:37 AM MDT, 9 minutes before
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The office that day

Everything else NWS El Paso, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 26, 7:31 PM MDTAreal Flood AdvisoryEPZOtero4 hr
Jul 26, 10:17 PM MDTAreal Flood AdvisoryEPZDoña Ana3 hr
Jul 26, 10:50 PM MDTFlash Flood WarningEPZDoña Ana85 min
Jul 27, 12:37 AM MDTAreal Flood AdvisoryEPZDoña Ana, Grant, Hidalgo, Luna, Otero, Sierra4 hr
Jul 27, 8:15 AM MDTAreal Flood AdvisoryEPZOtero3 hr
Jul 27, 2:40 PM MDTAreal Flood AdvisoryEPZDoña Ana, Grant, Luna, Sierra4 hr
Jul 27, 3:40 PM MDTFlash Flood WarningEPZDoña Ana, Grant, Luna, Sierra110 min
Jul 27, 4:39 PM MDTFlash Flood WatchEPZ7 hr
Jul 27, 4:57 PM MDTAreal Flood AdvisoryEPZHidalgo2 hr
Jul 27, 10:53 AM MDTRiver Flood WarningEPZ9 hr

Nearby

Flash Flood Warnings in New Mexico, 2008Every flash flood warning in 2008

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.