Alert archive / Texas / Flash Flood Watches in 2008

Flash Flood Watch 3, NWS Midland/Odessa, TX

July 24, 2008Pecos County, Terrell County, Texas; Eddy County, New Mexico

NWS Midland/Odessa, TX issued this flash flood watch at Jul 24, 2008, 5:09 AM CDT for Pecos County, Terrell County, Texas; Eddy County, New Mexico. It took effect at Jul 24, 2008, 2:36 PM CDT. It was in force for 38 hr.

The area

The counties it named.

The facts

Issued
Jul 24, 2008, 5:09 AM CDT (10:09 UTC)
In effect from
Jul 24, 2008, 2:36 PM CDT
Expired
Jul 26, 2008, 5:00 AM CDT
In force
38 hr
Issued by
NWS Midland/Odessa, TX
Flood severity
None

Counties Eddy County, NM, Pecos County, TX, Terrell County, TX

The radar

The Midland/Odessa radar (KMAF), 118 km from the middle of the area, began a volume at 10:07 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

Del Rio, TX (KDRT), launched 00:00Z, 10.2 hours before the alert went out and 290 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, Del Rio, TX at 00:00Z on 2008-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 178 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, Del Rio, TX at 00:00Z on 2008-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
178 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
2477 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
79 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 watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Midland/Odessa, TX wrote its last area forecast discussion before this flash flood watch went out at Jul 24, 4:37 AM CDT, 32 minutes earlier.

Area forecast discussion, Jul 24, 4:37 AM CDT, 32 minutes before
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Hazardous weather outlook, Jul 24, 3:46 AM CDT, 1 hour 23 minutes before
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Nearby

Flash Flood Watches in Texas, 2008Flash Flood Watches in New Mexico, 2008Every flash flood watch 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.