Alert archive / Texas / Flash Flood Watches in 2017

Flash Flood Watch 2, NWS Fort Worth, TX

April 10, 201717 counties in Texas

NWS Fort Worth, TX issued this flash flood watch at Apr 10, 2017, 11:09 AM CDT for 17 counties in Texas. It took effect at Apr 10, 2017, 2:00 PM CDT. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued: Apr 10, 2017, 11:09 AM CDT (16:09 UTC)
In effect from: Apr 10, 2017, 2:00 PM CDT
Expired: Apr 11, 2017, 7:00 AM CDT
In force: 17 hr
Issued by: NWS Fort Worth, TX
Flood severity: None

Counties Anderson County, TX, Bell County, TX, Bosque County, TX, Coryell County, TX, Falls County, TX, Freestone County, TX, Hamilton County, TX, Henderson County, TX, Hill County, TX, Lampasas County, TX, Leon County, TX, Limestone County, TX, McLennan County, TX, Milam County, TX, Mills County, TX, Navarro County, TX, Robertson County, TX

The radar

The Ft Hood radar (KGRK), 96 km from the middle of the area, began a volume at 16:08 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

Fort Worth, TX (KFWD), launched 12:00Z, 4.2 hours before the alert went out and 147 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: 784 J/kg
Mixed-layer CIN: -234 J/kg
Mixed-layer LCL: 738 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 313 m²/s²
0-3 km storm-relative helicity: 344 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

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 Fort Worth, TX wrote its last area forecast discussion before this flash flood watch went out at Apr 10, 7:18 AM CDT, 3 hours 51 minutes earlier.

Area forecast discussion, Apr 10, 7:18 AM CDT, 3 hours 51 minutes before

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Hazardous weather outlook, Apr 10, 3:45 AM CDT, 7 hours 24 minutes before

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The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 10, 1:44 PM CDT	Special Weather Statement	FWD	Fannin	31 min
Apr 10, 1:51 PM CDT	Special Weather Statement	FWD	Denton	24 min
Apr 10, 2:03 PM CDT	Special Weather Statement	FWD	Grayson	27 min
Apr 10, 2:06 PM CDT	Special Weather Statement	FWD	Johnson	24 min
Apr 10, 2:15 PM CDT	Special Weather Statement	FWD	Collin	30 min
Apr 10, 2:19 PM CDT	Special Weather Statement	FWD	Somervell	26 min
Apr 10, 2:33 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Denton	57 min
Apr 10, 2:36 PM CDT	Special Weather Statement	FWD	Johnson	24 min
Apr 10, 2:39 PM CDT	Special Weather Statement	FWD	Fannin	51 min
Apr 10, 2:50 PM CDT	Severe Thunderstorm Warning	FWD	Fannin, Lamar	55 min
Apr 10, 2:59 PM CDT	Severe Thunderstorm Warning	FWD	Johnson	61 min
Apr 10, 3:03 PM CDT	Special Weather Statement	FWD	Milam	27 min
Apr 10, 3:09 PM CDT	Severe Thunderstorm Warning	FWD	Milam	66 min
Apr 10, 3:10 PM CDT	Areal Flood Advisory	FWD	Collin, Denton	2 hr
Apr 10, 3:27 PM CDT	Special Weather Statement	FWD	Collin, Hunt	33 min
Apr 10, 3:30 PM CDT	Special Weather Statement	FWD	Delta	60 min
Apr 10, 3:44 PM CDT	Special Weather Statement	FWD	Lamar	31 min
Apr 10, 3:49 PM CDT	Areal Flood Advisory	FWD	Hunt	116 min
Apr 10, 3:51 PM CDT	Severe Thunderstorm Warning	FWD	Ellis, Hill, Johnson	54 min
Apr 10, 4:05 PM CDT	Special Weather Statement	FWD	Hunt, Rockwall	55 min
Apr 10, 4:07 PM CDT	Severe Thunderstorm Warning	FWD	Milam, Robertson	30 min
Apr 10, 4:21 PM CDT	Special Weather Statement	FWD	Bosque	24 min
Apr 10, 4:28 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Hill	62 min
Apr 10, 4:32 PM CDT	Special Weather Statement	FWD	Mills	28 min
Apr 10, 4:47 PM CDT	Special Weather Statement	FWD	Ellis	58 min
Apr 10, 4:50 PM CDT	Special Weather Statement	FWD	Delta, Hopkins	70 min
Apr 10, 5:04 PM CDT	Areal Flood Advisory	FWD	Hill	116 min
Apr 10, 5:04 PM CDT	Severe Thunderstorm Warning	FWD	Bosque	56 min
Apr 10, 5:15 PM CDT	Severe Thunderstorm Warning	FWD	Delta, Hopkins	60 min
Apr 10, 5:23 PM CDT	Special Weather Statement	FWD	Rains	52 min
Apr 10, 5:25 PM CDT	Special Weather Statement	FWD	Johnson	35 min
Apr 10, 5:46 PM CDT	Areal Flood Advisory	FWD	Ellis	119 min
Apr 10, 5:48 PM CDT	Severe Thunderstorm Warning	FWD	Bosque	20 min
Apr 10, 5:54 PM CDT	Severe Thunderstorm Warning	FWD	Ellis, Hill	33 min
Apr 10, 5:59 PM CDT	Areal Flood Advisory	FWD	Hopkins, Hunt	2 hr
Apr 10, 6:00 PM CDT	Special Weather Statement	FWD	Falls	30 min
Apr 10, 6:17 PM CDT	Special Weather Statement	FWD	Hopkins	58 min
Apr 10, 6:26 PM CDT	Special Weather Statement	FWD	Ellis	49 min
Apr 10, 6:30 PM CDT	Special Weather Statement	FWD	Falls	45 min
Apr 10, 6:46 PM CDT	Special Weather Statement	FWD	Lamar	59 min

Nearby

Flash Flood Watches in Texas, 2017 Every flash flood watch in 2017

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.