Alert archive / Texas / Flash Flood Warnings in 2000

Flash Flood Warning 21, NWS San Angelo, TX

June 18, 2000Sutton County, Texas

NWS San Angelo, TX issued this flash flood warning at Jun 18, 2000, 1:45 AM CDT for Sutton County, 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jun 18, 2000, 1:45 AM CDT (06:45 UTC)
Expired: Jun 18, 2000, 4:15 AM CDT
In force: 3 hr
Issued by: NWS San Angelo, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Sutton County, TX

The radar

The San Angelo radar (KSJT), 92 km from the middle of the area, began a volume at 06:47 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

Del Rio, TX (KDRT), launched 00:00Z, 6.8 hours before the alert went out and 135 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2604 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1502 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KSJT 180643
FFWSJT
TXC435-180915-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
145 AM CDT SUN JUN 18 2000

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SUTTON COUNTY IN SOUTHWEST TEXAS

* UNTIL 415 AM CDT

* AT 145 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA OF 
MODERATE RAIN CONTINUING OVER NORTHWESTERN SUTTON COUNTY ALONG 
INTERSTATE 10 WEST OF SONORA AND ALONG HIGHWAY 277 SOUTH OF 
SONORA...REMAINING NEARLY STATIONARY.

RADAR ESTIMATES EXCEED 3 INCHES IN THIS AREA.  AN ADDITIONAL 1 TO 2 
INCHES IS LIKELY AS THESE STORMS WILL PRODUCE ADDITIONAL RAIN OVER 
INTERSTATE 10 AND HIGHWAY 277.  RUNOFF FROM THESE STORMS WILL 
INUNDATE LOW WATER CROSSINGS AND OTHER FLOOD PRONE AREAS.

DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. THE WATER DEPTH 
MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. DO NOT ATTEMPT TO
CDRIVE AROUND BARRICADES. MOST FLASH FLOOD DEATHS OCCUR IN VEHICLES.

LAT...LON 3063 10092 3046 10069 3052 10063 3067 10074

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 17, 9:19 PM CDT	Flash Flood Warning	SJT	Schleicher	3 hr
Jun 17, 10:47 PM CDT	Flash Flood Warning	SJT	Sutton	3 hr
Jun 18, 3:29 AM CDT	Flash Flood Warning	SJT	Schleicher	106 min
Jun 18, 8:14 AM CDT	Flash Flood Warning	SJT	Schleicher, Sutton	6 hr
Jun 18, 10:22 AM CDT	Flash Flood Warning	SJT	McCulloch	3 hr
Jun 18, 10:39 AM CDT	Flash Flood Warning	SJT	Crockett	6 hr

Nearby

Flash Flood Warnings in Texas, 2000 Every flash flood warning in 2000

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.