Alert archive / Texas / Flash Flood Warnings in 2017

Flash Flood Warning 42, NWS Midland/Odessa, TX

September 26, 20174 counties in Texas

NWS Midland/Odessa, TX issued this flash flood warning at Sep 26, 2017, 3:54 PM CDT for 4 counties in 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 26, 2017, 3:54 PM CDT (20:54 UTC)
Expired
Sep 26, 2017, 6:45 PM CDT
In force
3 hr
Issued by
NWS Midland/Odessa, TX
Area
Storm-based polygon
Flood severity
None

Counties Andrews County, TX, Ector County, TX, Martin County, TX, Midland County, TX

The radar

The Midland/Odessa radar (KMAF), 8 km from the middle of the area, began a volume at 20:55 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

Midland Regional, TX (KMAF), launched 12:00Z, 8.9 hours before the alert went out and 7 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, Midland Regional, TX at 12:00Z on 2017-09-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 323 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 12:00Z on 2017-09-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.1939587897Sfc1 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
323 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
869 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

168 
WGUS54 KMAF 262054
FFWMAF
TXC003-135-317-329-262345-
/O.NEW.KMAF.FF.W.0042.170926T2054Z-170926T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Midland/Odessa TX
354 PM CDT TUE SEP 26 2017

The National Weather Service in Midland has issued a

* Flash Flood Warning for...
  Northeastern Ector County in western Texas...
  Southeastern Andrews County in western Texas...
  Northwestern Midland County in western Texas...
  Southwestern Martin County in western Texas...

* Until 645 PM CDT

* At 352 PM CDT, Doppler radar indicated showers and thunderstorms 
  producing heavy rain moving into the warned area. One to two 
  inches of rain have already fallen, so additional flash flooding 
  is expected. At 350 PM CDT, the Midland Fire Department reported 
  a high water rescue at Airline Road and Business 80. 

* Some locations that will experience flooding include...
  Midland, Odessa, West Odessa, Midland International Air and Space
  Port, Cotton Flat, Mission Dorado, Odessa Schelemeyer Field,
  Warfield, Midland Airpark and Skywest Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 3215 10199 3182 10206 3178 10250 3215 10251

$$

67
1 follow-up statement
147 
WGUS74 KMAF 262214
FFSMAF

Flash Flood Statement
National Weather Service Midland/Odessa TX
514 PM CDT TUE SEP 26 2017

TXC003-135-317-329-262345-
/O.CON.KMAF.FF.W.0042.000000T0000Z-170926T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ector TX-Andrews TX-Midland TX-Martin TX-
514 PM CDT TUE SEP 26 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
NORTHEASTERN ECTOR...SOUTHEASTERN ANDREWS...NORTHWESTERN MIDLAND AND
SOUTHWESTERN MARTIN COUNTIES...

At 512 PM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area had diminished. However, some areas 
remain flooded, and ponding of water on roadways remains a hazard.

Some locations that will experience flooding include...
Midland, Odessa, Cotton Flat, Warfield, Midland Airpark and 
Skywest Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 3215 10199 3182 10206 3178 10250 3215 10251

$$

44

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 25, 7:02 PM CDTSpecial Weather StatementMAFReeves28 min
Sep 25, 7:28 PM CDTSpecial Weather StatementMAFReeves47 min
Sep 25, 7:50 PM CDTAreal Flood AdvisoryMAFMidland3 hr
Sep 25, 8:29 PM CDTFlash Flood WarningMAFMidland3 hr
Sep 25, 8:39 PM CDTAreal Flood AdvisoryMAFJeff Davis3 hr
Sep 25, 9:11 PM CDTSpecial Weather StatementMAFJeff Davis34 min
Sep 25, 9:39 PM CDTAreal Flood AdvisoryMAFBrewster3 hr
Sep 26, 1:07 PM CDTFlash Flood WarningMAFAndrews, Ector, Martin, Midland3 hr
Sep 26, 1:10 PM CDTFlash Flood WarningMAFCrane, Ector, Pecos, Ward, Winkler3 hr
Sep 26, 1:55 PM CDTFlash Flood WarningMAFHoward, Martin3 hr
Sep 26, 1:56 PM CDTFlash Flood WarningMAFAndrews, Crane, Ector3 hr
Sep 26, 2:21 PM CDTHigh Wind WarningMAF19 hr
Sep 26, 2:35 PM CDTFlash Flood WarningMAFGlasscock, Martin, Midland3 hr
Sep 26, 2:42 PM CDTFlash Flood WarningMAFBorden, Dawson, Mitchell, Scurry3 hr
Sep 26, 3:06 PM CDTRiver Flood WarningMAFPresidio66 hr
Sep 26, 4:56 PM CDTSpecial Weather StatementMAFJeff Davis49 min
Sep 26, 4:58 PM CDTAreal Flood AdvisoryMAFUpton3 hr
Sep 26, 6:30 PM CDTSpecial Weather StatementMAFReeves30 min

Nearby

Flash Flood Warnings in Texas, 2017Every flash flood warning in 2017

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.