Alert archive / Texas / Flash Flood Watches in 2016
Flash Flood Watch 4, NWS San Angelo, TX
NWS San Angelo, TX issued this flash flood watch at May 31, 2016, 10:59 AM CDT for 24 counties in Texas. It took effect at May 31, 2016, 12:00 PM CDT. It was in force for 3 days.
The area
The counties it named.
The facts
- Issued
- May 31, 2016, 10:59 AM CDT (15:59 UTC)
- In effect from
- May 31, 2016, 12:00 PM CDT
- Expired
- Jun 3, 2016, 1:00 PM CDT
- In force
- 3 days
- Issued by
- NWS San Angelo, TX
- Flood severity
- None
All 24 counties
Brown County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Concho County, TX, Crockett County, TX, Fisher County, TX, Haskell County, TX, Irion County, TX, Jones County, TX, Kimble County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Nolan County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Shackelford County, TX, Sterling County, TX, Sutton County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX
The radar
The San Angelo radar (KSJT), 63 km from the middle of the area, began a volume at 16:00 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, 4.0 hours before the alert went out and 213 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.
- Mixed-layer CAPE
- 604 J/kg
- Mixed-layer CIN
- -148 J/kg
- Mixed-layer LCL
- 1014 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 San Angelo, TX wrote its last area forecast discussion before this flash flood watch went out at May 31, 6:36 AM CDT, 4 hours 23 minutes earlier.
Area forecast discussion, May 31, 6:36 AM CDT, 4 hours 23 minutes before
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</html>Hazardous weather outlook, May 31, 4:56 AM CDT, 6 hours 3 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 456 AM CDT TUE MAY 31 2016 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-011000- FISHER-NOLAN-STERLING-COKE-RUNNELS-IRION-TOM GREEN-CONCHO- CROCKETT-SCHLEICHER-SUTTON-HASKELL-THROCKMORTON-JONES-SHACKELFORD- TAYLOR-CALLAHAN-COLEMAN-BROWN-MCCULLOCH-SAN SABA-MENARD-KIMBLE- MASON- 456 AM CDT TUE MAY 31 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE POSSIBLE ACROSS WEST CENTRAL TEXAS TODAY AND TONIGHT. A FEW STORMS MAY BE SEVERE...MAINLY DURING THE AFTERNOON AND EVENING HOURS. THE MAIN HAZARDS WILL BE LARGE HAIL...DAMAGING WINDS AND DANGEROUS LIGHTNING. ALSO...THE STORMS WILL PRODUCE VERY HEAVY RAINFALL WHICH MAY RESULT IN LOCALIZE FLASH FLOODING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THUNDERSTORMS ARE POSSIBLE ACROSS WEST CENTRAL TEXAS WEDNESDAY THROUGH SATURDAY. A FEW STORMS MAY BECOME SEVERE WEDNESDAY ALONG AND SOUTH OF INTERSTATE 10. THE PRIMARY HAZARDS WILL BE LARGE HAIL AND DAMAGING WINDS. HEAVY RAINFALL AND THE THREAT FOR FLASH FLOODING WILL ALSO BE A CONCERN...ESPECIALLY WEDNESDAY THROUGH THURSDAY WHEN SHOWERS AND THUNDERSTORMS ARE EXPECTED TO BE MORE WIDESPREAD ACROSS THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND EVENING.
In the hours before
Special weather statement, May 31, 10:17 AM CDT, 42 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 1017 AM CDT TUE MAY 31 2016 TXZ170-311600- MASON TX- 1017 AM CDT TUE MAY 31 2016 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN MASON COUNTY UNTIL 1100 AM CDT... AT 1016 AM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR CASTELL...OR 10 MILES EAST OF MASON...MOVING NORTHEAST AT 30 MPH. NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM. THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF EASTERN MASON COUNTY...INCLUDING THE INTERSECTION OF US-87 AND RANCH ROAD 783. LAT...LON 3074 9930 3092 9897 3058 9896 3052 9920 TIME...MOT...LOC 1516Z 249DEG 36KT 3073 9906
Special weather statement, May 31, 10:54 AM CDT, 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1054 AM CDT TUE MAY 31 2016
TXZ073-154-168-311645-
MCCULLOCH TX-CONCHO TX-MENARD TX-
1054 AM CDT TUE MAY 31 2016
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MENARD...SOUTHEASTERN
CONCHO AND WEST CENTRAL MCCULLOCH COUNTIES UNTIL 1145 AM CDT...
AT 1053 AM CDT...A STRONG THUNDERSTORM WAS LOCATED 9 MILES NORTHEAST
OF FORT MCKAVETT...OR 12 MILES WEST OF MENARD...MOVING NORTHEAST AT
15 MPH.
DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.
THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF NORTHERN MENARD...
SOUTHEASTERN CONCHO AND WEST CENTRAL MCCULLOCH COUNTIES...INCLUDING
THE FOLLOWING LOCATIONS: LIVE OAK...US-83 NEAR THE MENARD-CONCHO
COUNTY LINE AND CAMP SOL MAYER.
LAT...LON 3074 10012 3109 10012 3120 9983 3130 9962
3108 9948
TIME...MOT...LOC 1553Z 230DEG 14KT 3093 10000Special weather statement, May 31, 10:58 AM CDT, 1 minute before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1058 AM CDT TUE MAY 31 2016
TXZ155-170-311700-
SAN SABA TX-MASON TX-
1058 AM CDT TUE MAY 31 2016
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN MASON AND SOUTHERN
SAN SABA COUNTIES UNTIL NOON CDT...
AT 1058 AM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR CASTELL...OR
12 MILES EAST OF MASON...MOVING NORTHEAST AT 15 MPH.
DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.
THIS STRONG THUNDERSTORM WILL BE NEAR...
PONTOTOC AROUND 1130 AM CDT.
CHEROKEE AROUND 1200 PM CDT.
LAT...LON 3092 9844 3092 9896 3069 9896 3065 9906
3076 9920 3079 9928 3094 9921 3094 9909
3100 9909 3111 9892 3099 9844 3096 9845
3094 9841 3093 9842
TIME...MOT...LOC 1558Z 230DEG 14KT 3076 9902The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 7:41 PM CDT | Special Weather Statement | SJT | Callahan | 19 min |
| May 31, 10:17 AM CDT | Special Weather Statement | SJT | Mason | 43 min |
| May 31, 10:54 AM CDT | Special Weather Statement | SJT | Menard | 51 min |
| May 31, 10:58 AM CDT | Special Weather Statement | SJT | Llano | 62 min |
| May 31, 11:14 AM CDT | Severe Thunderstorm Warning | SJT | Concho, McCulloch, Menard | 46 min |
| May 31, 11:26 AM CDT | Flash Flood Warning | SJT | Mason | 3 hr |
| May 31, 12:12 PM CDT | Areal Flood Advisory | SJT | Menard | 3 hr |
| May 31, 12:42 PM CDT | Areal Flood Advisory | SJT | Concho | 3 hr |
| May 31, 2:06 PM CDT | Areal Flood Advisory | SJT | Brown, McCulloch, San Saba | 3 hr |
| May 31, 2:09 PM CDT | Severe Thunderstorm Warning | SJT | Kimble | 51 min |
| May 31, 2:31 PM CDT | Areal Flood Advisory | SJT | Kimble, Mason | 3 hr |
| May 31, 2:59 PM CDT | Special Weather Statement | SJT | Nolan | 61 min |
| May 31, 3:04 PM CDT | Special Weather Statement | SJT | Callahan, Taylor | 56 min |
| May 31, 4:23 PM CDT | Special Weather Statement | SJT | Taylor | 52 min |
| May 31, 5:06 PM CDT | Flash Flood Warning | SJT | Taylor | 3 hr |
| May 31, 5:30 PM CDT | Special Weather Statement | SJT | Runnels | 60 min |
| May 31, 5:46 PM CDT | Areal Flood Advisory | SJT | Coke, Runnels, Tom Green | 3 hr |
| May 31, 6:24 PM CDT | Areal Flood Advisory | SJT | Tom Green | 3 hr |
Nearby
Flash Flood Watches in Texas, 2016Every flash flood watch in 2016
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.