Alert archive / Texas / Areal Flood Warnings in 2021
Areal Flood Warning 5, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this areal flood warning at May 15, 2021, 5:57 PM CDT for Live Oak County, McMullen County, Texas. It was in force for 2 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
- May 15, 2021, 5:57 PM CDT (22:57 UTC)
- Expired
- May 15, 2021, 8:00 PM CDT
- In force
- 2 hr
- Issued by
- NWS Corpus Christi, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties Live Oak County, TX, McMullen County, TX
The radar
The Corpus Christi radar (KCRP), 104 km from the middle of the area, began a volume at 22:56 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
Corpus Christi, TX (KCRP), launched 12:00Z, 11.0 hours before the alert went out and 121 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
- 581 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 719 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Corpus Christi, TX wrote its last area forecast discussion before this areal flood warning went out at May 15, 4:03 PM CDT, 1 hour 54 minutes earlier.
Area forecast discussion, May 15, 4:03 PM CDT, 1 hour 54 minutes before
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</html>Hazardous weather outlook, May 15, 3:46 AM CDT, 14 hours 11 minutes before
Hazardous Weather Outlook National Weather Service Corpus Christi TX 346 AM CDT Sat May 15 2021 TXZ229>234-239>247-342>347-442-443-447-160900- La Salle-McMullen-Live Oak-Bee-Goliad-Victoria-Webb-Duval- Jim Wells-Inland Kleberg-Inland Nueces-Inland San Patricio- Coastal Aransas-Inland Refugio-Inland Calhoun-Coastal Kleberg- Coastal Nueces-Coastal San Patricio-Aransas Islands- Coastal Refugio-Coastal Calhoun-Kleberg Islands-Nueces Islands- Calhoun Islands- 346 AM CDT Sat May 15 2021 This hazardous weather outlook is for South Texas. .DAY ONE...Today and Tonight Isolated to scattered thunderstorms are expected. A few storms could be strong to severe. Heavy rainfall is expected which could lead to localized flooding. .DAYS TWO THROUGH SEVEN...Sunday through Friday Scattered showers and thunderstorms will be possible daily through next week. A few storms could become strong to severe, along with a threat of locally heavy rainfall. There is a MODERATE risk of rip currents Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. GMZ230-235-250-255-270-275-160900- Bays and Waterways from Baffin Bay to Port Aransas- Bays and Waterways from Port Aransas to Port O'Connor- Coastal waters from Baffin Bay to Port Aransas out 20 NM- Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM-Waters from Baffin Bay to Port Aransas from 20 to 60 NM- Waters from Port Aransas to Matagorda Ship Channel from 20 to 60 NM- 346 AM CDT Sat May 15 2021 This hazardous weather outlook is for the Middle Texas Coastal Waters. .DAY ONE...Today and Tonight Isolated to scattered thunderstorms are expected tonight. A few storms could be strong. Small Craft Exercise Caution conditions are expected, with periods of Small Craft Advisory conditions possible. .DAYS TWO THROUGH SEVEN...Sunday through Friday Scattered showers and thunderstorms will be possible daily from Saturday through next week. A few storms could become strong to possibly severe. Small Craft Advisory conditions may be possible on and off through next week. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
In the hours before
Special weather statement, May 15, 4:35 PM CDT, 1 hour 22 minutes before
Special Weather Statement
National Weather Service Corpus Christi TX
435 PM CDT Sat May 15 2021
TXZ230-231-152215-
Live Oak-McMullen-
435 PM CDT Sat May 15 2021
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN MCMULLEN AND
NORTHWESTERN LIVE OAK COUNTIES...
At 433 PM CDT, a strong thunderstorm was located over Choke Canyon
Reservoir, moving southeast at 15 mph.
Winds up to 40 mph and pea size hail are possible with this storm.
Locations impacted include...
Three Rivers, Choke Canyon Reservoir, Calliham, Oakville, Crowther,
Simmons, Ray Point, Esseville and Whitsett.
This includes the following highways...
Interstate 37 between mile markers 65 and 83.
US Highway 281 between mile markers 618 and 626.
LAT...LON 2850 9799 2824 9837 2850 9857 2864 9834
2861 9833 2872 9818
TIME...MOT...LOC 2133Z 324DEG 15KT 2855 9832
TMTSpecial weather statement, May 15, 5:41 PM CDT, 16 minutes before
Special Weather Statement National Weather Service Corpus Christi TX 541 PM CDT Sat May 15 2021 TXZ230-231-152315- Live Oak-McMullen- 541 PM CDT Sat May 15 2021 ...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL MCMULLEN AND WEST CENTRAL LIVE OAK COUNTIES... At 540 PM CDT, a strong thunderstorm was located near Simmons, or 10 miles south of Choke Canyon Reservoir, moving southeast at 15 mph. Winds in excess of 40 mph and half inch hail are possible with this storm. Locations impacted include... Simmons. This includes the following highways... US Highway 281 near mile marker 634. US Highway 59 between mile markers 724 and 728. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. LAT...LON 2836 9848 2847 9831 2830 9810 2814 9840 TIME...MOT...LOC 2240Z 326DEG 15KT 2836 9835 TMT
The office that day
Everything else NWS Corpus Christi, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 4:35 PM CDT | Special Weather Statement | CRP | Live Oak | 40 min |
| May 15, 5:35 PM CDT | Areal Flood Advisory | CRP | Live Oak, McMullen | 2 hr |
| May 15, 5:41 PM CDT | Special Weather Statement | CRP | Live Oak | 34 min |
Nearby
Areal Flood Warnings in Texas, 2021Every areal flood warning in 2021
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.