Alert archive / Texas / Flash Flood Warnings in 1990

Flash Flood Warning 6, NWS El Paso, TX

July 28, 1990Brewster County, Presidio County, Texas

NWS El Paso, TX issued this flash flood warning at Jul 28, 1990, 12:54 PM CDT for Brewster County, Presidio County, Texas. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Jul 28, 1990, 12:54 PM CDT (17:54 UTC)
Expired
Jul 28, 1990, 8:00 PM CDT
In force
7 hr
Issued by
NWS El Paso, TX
Area
Whole counties

Counties Brewster County, TX, Presidio County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 5.9 hours before the alert went out and 271 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 1990-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Midland Regional, TX at 12:00Z on 1990-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KABQ 281755
FFWABQ
TXC043-377-291300-

BULLETIN...EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE  ALBUQUERQUE NM
1254 PM CDT SAT JUL 28 1990

THE NATIONAL WEATHER SERVICE IN ALBUQUERQUE HAS ISSUED A FLOOD
WARNING EFFECTIVE UNTIL 800 AM CDT SUNDAY FOR THE BIG BEND AREA
OF SOUTHWEST TEXAS. FLOODING IN THIS AREA IS OCCURRING OR IS
IMMINENT. THE AREA EFFECTED IS GENERALLY FROM JUST SOUTHEAST OF
PRESIDIO DOWNSTREAM THROUGH THE BIG BEND NATIONAL PARK.

HEAVY RAINS FROM THUNDERSTORMS LAST NIGHT PRODUCED MORE THAN TWO INCHES
OF RAIN OVER PORTIONS OF SOUTHWEST TEXAS AND ADJACENT PORTIONS OF
NORTHERN MEXICO IN THE RIO CONCHO BASIN.

NEAR NOON CDT THE RIO GRANDE AT THE PRESIDIO BRIDGE WAS AT A LEVEL OF
11.5 FEET AND RISING. FLOOD STAGE THERE IS 15.5 FEET. DOWNSTREAM AT
THE WEIR GUAGE(5 MILES SOUTHEAST OF PRESIDIO) THE RIVER WAS AT 8.26
FEET AND RISING AS OF 1215 PM CDT. FLOOD STAGE AT THAT POINT IS 8.5
FEET.

SATTELITE PICTURES INDICATE THAT RAINS OVER SOUTHWEST TEXAS AND AD-
JACENT PORTIONS OF MEXICO HAVE TAPERED OFF BUT RUNOFF ALREADY OCCURRING
MAY PUSH THE RIO GRANDE OVER FLOOD STAGE IN THE AREA FROM JUST SOUTHEAST
OF PRESIDIO WITH RISING RIVER LEVELS DOWNSTREAM IN THE BIG BEND
NATIONAL PARK. IT IS POSSIBLE THAT SHOWERS AND THUNDERSTORMS MAY
REINTENSIFY LATER TODAY AND TONIGHT OVER SOUTHWEST TEXAS AND NORTHERN
MEXICO. THE SITUATION WILL BE CLOSELY MONITORED AND ADDITIONAL STATE-
MENTS WILL BE ISSUED AS MORE INFORMATION BECOMES AVAILABLE.

IF YOU LIVE IN THE FLOOD PRONE AREAS ALONG THE RIO GRANDE FROM NEAR
PRESIDIO THROUGH THE NATIONAL PARK TAKE PRECAUTIONARY ACTION
IMMEDIATELY.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.  IF FLOODING IS OBSERVED ACT QUICKLY.  MOVE UP
TO HIGHER GROUND TO ESCAPE FLOOD WATERS.  DO NOT STAY IN AREAS SUB-
JECT TO FLOODING WHEN WATER BEGINS RISING.

END..

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 8:39 PM CDTFlash Flood WarningEPZEl Paso66 min
Jul 27, 8:39 PM CDTSevere Thunderstorm WarningEPZEl Paso66 min
Jul 27, 9:44 PM CDTFlash Flood WarningEPZEl Paso61 min

Nearby

Flash Flood Warnings in Texas, 1990Every flash flood warning in 1990

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.