Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 20, NWS San Angelo, TX

June 5, 1998Concho County, Texas

NWS San Angelo, TX issued this flash flood warning at Jun 5, 1998, 1:40 AM CDT for Concho 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 counties it named.

The facts

Issued
Jun 5, 1998, 1:40 AM CDT (06:40 UTC)
Expired
Jun 5, 1998, 4:40 AM CDT
In force
3 hr
Issued by
NWS San Angelo, TX
Area
Whole counties

County Concho County, TX

The radar

The San Angelo radar (KSJT), 60 km from the middle of the area, began a volume at 06:42 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 00:00Z, 6.7 hours before the alert went out and 232 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 00:00Z on 1998-06-05Temperature 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 00:00Z on 1998-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
4991 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
131 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 San Angelo, TX wrote its last area forecast discussion before this flash flood warning went out at Jun 4, 9:13 PM CDT, 4 hours 27 minutes earlier.

Area forecast discussion, Jun 4, 9:13 PM CDT, 4 hours 27 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
913 PM CDT THU JUN 4 1998

01Z SFC ANALYSIS SHOWS A BOWED DRYLINE MOVING INTO THE FAR EASTERN
CWA. ADAP ESTIMATED SURFACE-BASED LIFTED INDICES EAST OF THE DRYLINE
WERE NEAR -11C. VILS OF 80+ WERE VERY COMMON WITH THE HEARTLAND
STORMS THE PAST 3 HOURS.

SECONDARY PUSH OF DRY AIR IS EVIDENT ON THE KSJT RADAR ENTERING IRION
AND COKE COUNTIES. ISOLATED HIGH-BASED THUNDERSTORMS WERE MOVING INTO
IRION COUNTIES. THESE MAY BRIEFLY PULSE WITH INTERACTION OF THE
AFOREMENTIONED BOUNDARY NORTHWEST OF KSJT. HOWEVER...EXPECT THESE
ISOLATED STORMS TO DISSIPATE THROUGH LATE EVENING. CAN PROBABLY
DROP/REDUCE POPS OVER THE CONCHO/EASTERN BIG COUNTRY ZONES LATER THIS
EVENING...PENDING RADAR TRENDS.

14

In the hours before

Local storm report, Jun 4, 11:14 PM CDT, 2 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TEXAS
1114 PM CDT THU JUN 4 1998

TIME(CDT)  .....CITY LOCATION.....   STATE...EVENT/REMARKS...
           ....COUNTY LOCATION....

0545 PM    9 E PAINT ROCK            TX   1.25 INCH HAIL
06/04/98   CONCHO                         HALF DOLLAR SIZE HAIL

0545 PM    9 E PAINT ROCK            TX   64 MPH TSTM GUST
06/04/98   CONCHO                         DAMAGED SAIL BOATS ON
                                          O.H. IVIE RESERVOIR

0545 PM    6 SE PAINT ROCK           TX   1.75 INCH HAIL
06/04/98   CONCHO                         GOLFBALL SIZE HAIL

0605 PM    10 S BRADY                TX   0.88 INCH HAIL
06/04/98   MCCULLOCH                      NICKEL SIZE HAIL

0634 PM    12 SW BROWNWOOD           TX   1.75 INCH HAIL
06/04/98   BROWN                          GOLFBALL SIZE HAIL

0715 PM    SAN SABA                  TX   1.75 INCH HAIL
06/04/98   SAN SABA                       GOLFBALL SIZE HAIL

0719 PM    12 SW BROWNWOOD           TX   WIND DAMAGE
06/04/98   BROWN                          UTILITY POLES DOWN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 7:35 PM CDTSevere Thunderstorm WarningSJTMcCulloch50 min
Jun 4, 7:46 PM CDTFlash Flood WarningSJTMcCulloch, San Saba3 hr
Jun 4, 7:54 PM CDTSevere Thunderstorm WarningSJTSan Saba66 min
Jun 4, 8:57 PM CDTSevere Thunderstorm WarningSJTSan Saba33 min
Jun 5, 12:37 AM CDTSevere Thunderstorm WarningSJTConcho38 min
Jun 5, 12:57 AM CDTSevere Thunderstorm WarningSJTSchleicher, Tom Green63 min
Jun 5, 1:25 AM CDTSevere Thunderstorm WarningSJTConcho65 min
Jun 5, 1:28 AM CDTSevere Thunderstorm WarningSJTMcCulloch77 min
Jun 5, 1:34 AM CDTTornado WarningSJTSchleicher, Tom Green51 min
Jun 5, 2:07 AM CDTSevere Thunderstorm WarningSJTBrown, San Saba78 min
Jun 5, 2:19 AM CDTTornado WarningSJTConcho, Menard51 min
Jun 5, 5:20 AM CDTSevere Thunderstorm WarningSJTSutton50 min
Jun 5, 5:54 AM CDTSevere Thunderstorm WarningSJTMenard46 min

Nearby

Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998

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.