Alert archive / Texas / Flash Flood Warnings in 2010
Flash Flood Warning 19, NWS Fort Worth, TX
NWS Fort Worth, TX issued this flash flood warning at May 20, 2010, 8:54 AM CDT for Lamar County, Texas. It was in force for 111 min. 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 20, 2010, 8:54 AM CDT (13:54 UTC)
- Expired
- May 20, 2010, 10:45 AM CDT
- In force
- 111 min
- Issued by
- NWS Fort Worth, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Lamar County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 202 km from the middle of the area, began a volume at 13:55 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, 1.9 hours before the alert went out and 185 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
- 2918 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 646 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 212 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 2.2
- Supercell composite
- 10.0
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 Fort Worth, TX wrote its last area forecast discussion before this flash flood warning went out at May 20, 7:41 AM CDT, 1 hour 13 minutes earlier.
Area forecast discussion, May 20, 7:41 AM CDT, 1 hour 13 minutes before
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</html>Hazardous weather outlook, May 20, 4:04 AM CDT, 4 hours 50 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FORT WORTH TX 404 AM CDT THU MAY 20 2010 TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-211130- MONTAGUE-COOKE-GRAYSON-FANNIN-LAMAR-YOUNG-JACK-WISE-DENTON-COLLIN- HUNT-DELTA-HOPKINS-STEPHENS-PALO PINTO-PARKER-TARRANT-DALLAS- ROCKWALL-KAUFMAN-VAN ZANDT-RAINS-EASTLAND-ERATH-HOOD-SOMERVELL- JOHNSON-ELLIS-HENDERSON-COMANCHE-MILLS-HAMILTON-BOSQUE-HILL-NAVARRO- FREESTONE-ANDERSON-LAMPASAS-CORYELL-BELL-MCLENNAN-FALLS-LIMESTONE- LEON-MILAM-ROBERTSON- 404 AM CDT THU MAY 20 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS. .DAY ONE...TODAY AND TONIGHT. THERE IS A CHANCE OF THUNDERSTORMS ACROSS ALL OF NORTH TEXAS TODAY. SOME OF THE STORMS MAY BE SEVERE...PRODUCING LARGE HAIL AND DAMAGING WINDS. SOME OF THE STORMS WILL ALSO PRODUCE LOCALLY HEAVY RAINFALL THAT MAY RESULT IN FLASH FLOODING. THUNDERSTORMS WILL END FROM WEST TO EAST LATE THIS AFTERNOON AND EVENING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUESTED NORTH OF A COMANCHE TO PALESTINE LINE THIS MORNING...AND MAINLY ALONG AND EAST OF THE I-35 CORRIDOR THIS AFTERNOON INTO EARLY EVENING.
In the hours before
Special weather statement, May 20, 4:39 AM CDT, 4 hours 15 minutes before
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</html>Local storm report, May 20, 6:25 AM CDT, 2 hours 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
625 AM CDT THU MAY 20 2010
..TIME.. ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE.. ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0533 AM HAIL 2 W HUCKABAY 32.33N 98.33W
05/20/2010 E0.88 INCH ERATH TX LAW ENFORCEMENT
NICKEL SIZE HAIL REPORTED 2 MILES WEST OF HUCKABAYLocal storm report, May 20, 6:42 AM CDT, 2 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
642 AM CDT THU MAY 20 2010
..TIME.. ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE.. ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0638 AM HAIL 5 S GRANBURY 32.38N 97.80W
05/20/2010 E0.75 INCH HOOD TX TRAINED SPOTTER
DIME SIZE HAIL WAS REPORTED ON FM 2425 APPROXIMATELY 5
MILES SOUTH OF GRANBURYLocal storm report, May 20, 6:52 AM CDT, 2 hours 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
652 AM CDT THU MAY 20 2010
..TIME.. ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE.. ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0640 AM HAIL 5 SSW GRANBURY 32.38N 97.83W
05/20/2010 E0.88 INCH HOOD TX TRAINED SPOTTER
NICKEL SIZE HAIL REPORTED IN PECAN PLANTATION.Special weather statement, May 20, 7:53 AM CDT, 1 hour 1 minute before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
753 AM CDT THU MAY 20 2010
TXZ134-201330-
ELLIS TX-
753 AM CDT THU MAY 20 2010
...SIGNIFICANT WEATHER ADVISORY FOR...
EAST CENTRAL ELLIS COUNTY
AT 753 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 4 MILES SOUTHWEST OF ENNIS...MOVING EAST AT 40
MPH.
CITIES IN THE PATH OF THIS STORM INCLUDE ALMA...BARDWELL AND ENNIS.
PENNY-SIZED HAIL AND WIND GUSTS TO 40 MPH CAN BE EXPECTED FROM THIS
STORM.
IF THIS STORM INTENSIFIES...A SEVERE WEATHER WARNING MAY BE NEEDED.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 AM CDT
THURSDAY MORNING FOR NORTHEASTERN TEXAS.
LAT...LON 3222 9661 3223 9672 3240 9676 3243 9645
3241 9644 3236 9645 3234 9641 3233 9640
TIME...MOT...LOC 1253Z 266DEG 37KT 3232 9666The office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 4:39 AM CDT | Special Weather Statement | FWD | Eastland | 36 min |
| May 20, 5:05 AM CDT | Severe Thunderstorm Warning | FWD | Eastland, Erath | 55 min |
| May 20, 5:55 AM CDT | Severe Thunderstorm Warning | FWD | Erath, Hood, Somervell | 65 min |
| May 20, 6:49 AM CDT | Severe Thunderstorm Warning | FWD | Johnson | 56 min |
| May 20, 7:53 AM CDT | Special Weather Statement | FWD | Ellis | 37 min |
| May 20, 11:21 AM CDT | Special Weather Statement | FWD | Fannin | 24 min |
| May 20, 11:31 AM CDT | Special Weather Statement | FWD | Tarrant | 29 min |
| May 20, 12:15 PM CDT | Special Weather Statement | FWD | Dallas | 30 min |
| May 20, 12:40 PM CDT | Severe Thunderstorm Warning | FWD | Hopkins | 47 min |
| May 20, 12:41 PM CDT | Special Weather Statement | FWD | Tarrant | 34 min |
| May 20, 12:51 PM CDT | Areal Flood Advisory | FWD | Hopkins, Hunt | 3 hr |
| May 20, 12:51 PM CDT | Severe Thunderstorm Warning | FWD | Dallas, Tarrant | 54 min |
| May 20, 12:58 PM CDT | Tornado Warning | FWD | Hopkins | 28 min |
| May 20, 1:03 PM CDT | Areal Flood Advisory | FWD | Dallas | 3 hr |
| May 20, 1:41 PM CDT | Severe Thunderstorm Warning | FWD | Dallas | 64 min |
| May 20, 2:06 PM CDT | Severe Thunderstorm Warning | FWD | Ellis, Kaufman | 54 min |
| May 20, 2:07 PM CDT | Tornado Warning | FWD | Ellis | 38 min |
| May 20, 2:43 PM CDT | Tornado Warning | FWD | Ellis | 47 min |
| May 20, 2:54 PM CDT | Severe Thunderstorm Warning | FWD | Henderson, Kaufman | 66 min |
| May 20, 3:23 PM CDT | Areal Flood Advisory | FWD | Ellis | 112 min |
| May 20, 3:28 PM CDT | Severe Thunderstorm Warning | FWD | Ellis, Navarro | 62 min |
| May 20, 3:45 PM CDT | Tornado Warning | FWD | Ellis, Navarro | 45 min |
| May 20, 3:55 PM CDT | Severe Thunderstorm Warning | FWD | Henderson | 65 min |
| May 20, 4:25 PM CDT | Tornado Warning | FWD | Navarro | 38 min |
| May 20, 4:28 PM CDT | Severe Thunderstorm Warning | FWD | Ellis, Navarro | 47 min |
| May 20, 5:00 PM CDT | Severe Thunderstorm Warning | FWD | Navarro | 60 min |
| May 20, 5:00 PM CDT | Severe Thunderstorm Warning | FWD | Anderson, Henderson, Navarro | 60 min |
| May 20, 5:11 PM CDT | Tornado Warning | FWD | Anderson, Freestone, Henderson, Navarro | 49 min |
| May 20, 5:14 PM CDT | Severe Thunderstorm Warning | FWD | Ellis | 46 min |
| May 20, 5:19 PM CDT | Tornado Warning | FWD | Freestone, Navarro | 41 min |
| May 20, 5:38 PM CDT | Severe Thunderstorm Warning | FWD | Hill | 52 min |
| May 20, 5:43 PM CDT | Tornado Warning | FWD | Anderson, Freestone, Navarro | 47 min |
| May 20, 5:58 PM CDT | Severe Thunderstorm Warning | FWD | Navarro | 62 min |
| May 20, 6:19 PM CDT | Severe Thunderstorm Warning | FWD | Bosque | 56 min |
| May 20, 6:24 PM CDT | Severe Thunderstorm Warning | FWD | Anderson | 46 min |
| May 20, 6:29 PM CDT | Severe Thunderstorm Warning | FWD | Hill | 61 min |
| May 20, 6:40 PM CDT | Severe Thunderstorm Warning | FWD | Freestone, Limestone | 65 min |
| May 20, 6:41 PM CDT | Tornado Warning | FWD | Hill, Limestone, Navarro | 49 min |
| May 20, 6:47 PM CDT | Special Weather Statement | FWD | Hamilton | 28 min |
| May 20, 6:58 PM CDT | Tornado Warning | FWD | Freestone | 32 min |
Nearby
Flash Flood Warnings in Texas, 2010Every 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.