Alert archive / Texas / Flash Flood Warnings in 2010

Flash Flood Warning 10, NWS Amarillo, TX

June 13, 20104 counties in Texas

NWS Amarillo, TX issued this flash flood warning at Jun 13, 2010, 8:43 PM CDT for 4 counties in 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: Jun 13, 2010, 8:43 PM CDT (01:43 UTC)
Expired: Jun 13, 2010, 10:45 PM CDT
In force: 2 hr
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Flood severity: None

Counties Hemphill County, TX, Lipscomb County, TX, Ochiltree County, TX, Roberts County, TX

The radar

The Amarillo radar (KAMA), 140 km from the middle of the area, began a volume at 01:43 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

Lamont, OK (KLMN), launched 00:00Z, 1.7 hours before the alert went out and 281 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: 2227 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1369 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 153 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 7.2

Open this sounding in Storm Lab

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 Amarillo, TX wrote its last area forecast discussion before this flash flood warning went out at Jun 13, 3:29 PM CDT, 5 hours 14 minutes earlier.

Area forecast discussion, Jun 13, 3:29 PM CDT, 5 hours 14 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AMARILLO TX
329 PM CDT SUN JUN 13 2010

.DISCUSSION...
ONCE AGAIN...SEVERE WEATHER THREAT WILL FORCE A SHORTER AFD THAN
NORMAL. STORMS ARE FORMING ALONG THE STATIONARY FRONT WHICH IS
SITUATED FROM AROUND TUCUMCARI TO BUSHLAND THEN NORTH TO
BORGER...SPEARMAN AND TOWARD DODGE CITY. AT THE SAME TIME...THE UPPER
LOW HAS DRIFTED TO THE EAST PROVIDING A STRONG WIND COMPONENT ALOFT
ALONG WITH A MORE SOUTH TO NORTH ORIENTATION. SO THIS WILL FAVOR
TRAINING STORMS ALONG THE NORTH SOUTH PORTION OF THE FRONT. ONCE
AGAIN...HEAVY RAIN IS A SIGNIFICANT THREAT AND WE HAVE ISSUED A FLASH
FLOOD WATCH FOR THE MUCH OF THE NORTHEAST PANHANDLES. SHEAR PROFILES
SUPPORT SUPERCEL STORMS ESPECIALLY ALONG AND NORTH OF THE FRONT...SO
ISOLD TORNADOES ARE AGAIN POSSIBLE ALONG WITH LARGE HAIL AND
DOWNBURST WINDS.

STRONGER COLD FRONT SHOULD MAKE ITS PUSH SOUTH THIS EVENING AND MOVE
THROUGH THE SOUTHERN TEXAS PANHANDLE BY 12Z MONDAY. HOWEVER...THIS
FRONT IS ALSO PROGGED TO STALL JUST SOUTH OF THE TEXAS PANHANDLE.
FLOW ALOFT WILL TRANSITION TO MORE SOUTHWESTERLY AS THE BASE OF THE
UPPER TROUGH APPROACHES THE AREA...SO LOCATIONS IN THE SOUTHEAST
TEXAS PANHANDLE WILL BE MOST FAVORED FOR HEAVY RAIN AND ANY SEVERE
THREAT MONDAY. FAVORED THE COOLER GUIDANCE SOLUTIONS THROUGH TUESDAY
BASED ON THE FRONTAL POSITION AND EXPECTED CLOUD COVER AND STORMS.

STATIONARY FRONT MAY TRY TO LIFT SLOWLY NORTH OF TUESDAY WHILE THE
FLOW ALOFT BECOMES ZONAL. CARRIED SLIGHT CHANCE POPS ACROSS THE
PANHANDLES THROUGH TUESDAY NIGHT...BUT ONCE AGAIN KEPT THE DRY
FORECAST GOING THROUGH THE END OF THE WEEK AS WEAK RIDGING BUILDS
OVER THE AREA. THERE IS A CAVEAT HOWEVER...AS THE DRYLINE SHOULD
REFORM ACROSS EASTERN NEW MEXICO AS A LEE SIDE TROUGH DEEPENS OVER
EASTERN COLORADO. WITH THE WEAK FLOW ALOFT DUE TO THE RIDGE...ITS
POSSIBLE ANY STORMS THAT FORM IN EASTERN NEW MEXICO WILL NOT BE ABLE
TO REACH THE PANHANDLES. SO IF THE RIDGE HOLDS...THE DRY FORECAST MAY
PAN OUT.

JJB

&&

.FIRE WEATHER...
MOISTURE IN PLACE ALONG WITH COOLER AIR BEHIND A FRONT SHOULD KEEP
THE FIRE WEATHER CONCERNS LOW THROUGH TUESDAY. INCREASING
TEMPERATURES ARE EXPECTED BY THE END OF THE WEEK WHICH SHOULD CAUSE
THE RH VALUES TO FALL ESPECIALLY IN THE WESTERN PANHANDLES.

JJB

&&

.PRELIMINARY POINT TEMPS/POPS...
AMARILLO TX                60  77  60  83  64 /  30  30  50  20  20
BEAVER OK                  59  77  59  84  65 /  70  30  30  20  20
BOISE CITY OK              53  73  55  83  60 /  40  20  30  20  20
BORGER TX                  60  79  62  85  66 /  40  30  40  20  20
BOYS RANCH TX              59  79  60  84  63 /  30  30  40  20  20
CANYON TX                  61  80  61  87  63 /  30  30  50  20  20
CLARENDON TX               68  81  63  85  66 /  30  40  60  20  20
DALHART TX                 55  75  56  84  59 /  30  20  30  20  20
GUYMON OK                  57  74  59  85  63 /  60  20  30  20  20
HEREFORD TX                59  80  61  85  62 /  20  30  40  20  20
LIPSCOMB TX                64  79  61  86  66 /  60  30  40  20  20
PAMPA TX                   61  75  61  83  64 /  40  30  50  20  20
SHAMROCK TX                70  85  65  87  67 /  30  40  60  20  20
WELLINGTON TX              72  86  66  88  67 /  30  40  60  20  20

&&

.AMA WATCHES/WARNINGS/ADVISORIES...
TX...FLASH FLOOD WATCH THROUGH MONDAY MORNING FOR THE FOLLOWING
     ZONES: HANSFORD...HUTCHINSON...LIPSCOMB...MOORE...
     OCHILTREE...ROBERTS...SHERMAN.

OK...FLASH FLOOD WATCH THROUGH MONDAY MORNING FOR THE FOLLOWING
     ZONES: BEAVER...TEXAS.

&&

07/14

Hazardous weather outlook, Jun 13, 6:06 PM CDT, 2 hours 37 minutes before

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In the hours before

Local storm report, Jun 13, 6:10 PM CDT, 2 hours 33 minutes before

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Local storm report, Jun 13, 6:25 PM CDT, 2 hours 18 minutes before

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Local storm report, Jun 13, 6:34 PM CDT, 2 hours 9 minutes before

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Local storm report, Jun 13, 6:42 PM CDT, 2 hours 1 minute before

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Local storm report, Jun 13, 6:45 PM CDT, 1 hour 58 minutes before

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Local storm report, Jun 13, 6:59 PM CDT, 1 hour 44 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 7:39 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Lipscomb, Ochiltree, Roberts	66 min
Jun 13, 9:14 PM CDT	River Flood Warning	AMA	Lipscomb, Ochiltree	15 hr
Jun 14, 1:44 AM CDT	Areal Flood Warning	AMA	Lipscomb, Ochiltree	16 hr
Jun 14, 5:41 PM CDT	River Flood Warning	AMA	Lipscomb, Ochiltree	18 hr

Nearby

Flash Flood Warnings in Texas, 2010 Every flash flood warning in 2010

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.