Alert archive / Texas / Flash Flood Warnings in 2009

Flash Flood Warning 10, NWS Midland/Odessa, TX

April 27, 2009Howard County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Apr 27, 2009, 4:41 AM CDT for Howard County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 27, 2009, 4:41 AM CDT (09:41 UTC)
Expired: Apr 27, 2009, 7:45 AM CDT
In force: 3 hr
Issued by: NWS Midland/Odessa, TX
Area: Storm-based polygon
Flood severity: None

County Howard County, TX

The radar

The Midland/Odessa radar (KMAF), 81 km from the middle of the area, began a volume at 09:41 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 9.7 hours before the alert went out and 82 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: 1496 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 2067 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: -22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS54 KMAF 270941
FFWMAF
TXC227-271245-
/O.NEW.KMAF.FF.W.0010.090427T0941Z-090427T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
441 AM CDT MON APR 27 2009

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN HOWARD COUNTY IN WEST TEXAS...

* UNTIL 745 AM CDT

* AT 436 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
  POSSIBLE FLASH FLOODING ACROSS SOUTHERN HOWARD COUNTY. SEVERAL 
  ROUNDS OF THUNDERSTORMS HAVE MOVED OVER THE WARNED AREA OVERNIGHT. 
  ADDITIONAL THUNDERSTORMS ARE EXPECTED TO MOVE OVER THE AREA THROUGH
  MID MORNING...WITH ADDITIONAL HEAVY RAINFALL LIKELY.  

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SOUTH HAVEN
  AND ELBOW. ADDITIONALLY...FM ROUTES 821 AND 2183 WILL ALSO BE IMPACTED
  BY THE FLASH FLOODING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. ACT QUICKLY IF FLOODING IS OBSERVED. MOVE TO
HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. IF YOU ARE IN THE WARNED AREA... MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS... CREEKS... AND OTHER
LOW LYING AREAS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND
PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF
UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE.


&&

LAT...LON 3210 10165 3217 10163 3229 10118 3225 10117
      3221 10117 3209 10118

$$

1 follow-up statement

000 
WGUS74 KMAF 271151
FFSMAF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
651 AM CDT MON APR 27 2009

TXC227-271245-
/O.CON.KMAF.FF.W.0010.000000T0000Z-090427T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HOWARD-
651 AM CDT MON APR 27 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 AM CDT FOR
SOUTHERN HOWARD COUNTY...

AT 646 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT POSSIBLE FLASH FLOODING ACROSS SOUTHERN HOWARD COUNTY. DOPPLER
RADAR ESTIMATES SUGGESTS THAT AS MUCH AS 2 TO 3 INCHES OF RAIN HAS 
FALLEN ACROSS THE WARNED AREA. ALTHOUGH HEAVY RAINFALL HAS NOW 
ENDED...LOCALIZED AREAS OF FLASH FLOODING REMAIN POSSIBLE...ESPECIALLY 
ALONG FM ROUTES 821 AND 2183.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SOUTH HAVEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT
MONDAY MORNING FOR WEST TEXAS.

&&

LAT...LON 3210 10165 3217 10163 3229 10118 3225 10117
      3221 10117 3209 10118

$$

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 Midland/Odessa, TX wrote its last area forecast discussion before this flash flood warning went out at Apr 26, 11:44 PM CDT, 4 hours 57 minutes earlier.

Area forecast discussion, Apr 26, 11:44 PM CDT, 4 hours 57 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
1144 PM CDT SUN APR 26 2009

.DISCUSSION...
SEE 06Z AVIATION DISCUSSION BELOW.

&&

.AVIATION...
REGIONAL RADAR TRENDS INDICATE MUCH OF THE CONVECTIVE ACTIVITY
CONTINUES PUSHING OFF TO THE EAST. CONCERNS FOR POSSIBLE
REGENERATION WESTWARD THROUGH THE OVERNIGHT HOWEVER AS DRYLINE
CONTINUES PULLING WESTWARD. WILL MONITOR TRENDS AND MAKE THE
APPROPRIATE UPDATES IF NECESSARY. MOISTURE CONTINUES TO OVERSPREAD
THE AREA THIS EVENING AND MAY SEE SOME LOW CLOUDS SPREAD INTO
KMAF/KFST. GENERALLY WEAK WINDS EXPECTED ACROSS THE REGION
TOMORROW WITH MOISTURE/LOW CLOUDS POSSIBLE AGAIN TOMORROW NIGHT AS
A COLD FRONT SAGS SOUTHWARD.

&&

.MAF WATCHES/WARNINGS/ADVISORIES...
NM...NONE.
TX...NONE.

&&

Hazardous weather outlook, Apr 27, 3:27 AM CDT, 1 hour 14 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
327 AM CDT MON APR 27 2009

NMZ027>029-033-034-TXZ045>048-050>053-057>063-067>070-074-075-
079>082-258-280830-
GUADALUPE MOUNTAINS OF EDDY COUNTY-EDDY COUNTY PLAINS-
NORTHERN LEA COUNTY-CENTRAL LEA COUNTY-SOUTHERN LEA COUNTY-GAINES-
DAWSON-BORDEN-SCURRY-ANDREWS-MARTIN-HOWARD-MITCHELL-
VAN HORN AND HIGHWAY 54 CORRIDOR-REEVES COUNTY AND UPPER TRANS PECOS-
LOVING-WINKLER-ECTOR-MIDLAND-GLASSCOCK-WARD-CRANE-UPTON-REAGAN-
DAVIS/APACHE MOUNTAINS AREA-PECOS-PRESIDIO VALLEY-MARFA PLATEAU-
BIG BEND AREA-TERRELL-GUADALUPE MOUNTAINS-
327 AM CDT MON APR 27 2009 /227 AM MDT MON APR 27 2009/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST NEW
MEXICO...SOUTHWEST TEXAS AND WEST TEXAS.

.DAY ONE...TODAY AND TONIGHT

STRONG TO SEVERE THUNDERSTORMS WILL REMAIN POSSIBLE THIS MORNING
ACROSS THE EASTERN AND NORTHEASTERN PERMIAN BASIN. LARGE HAIL AND
DAMAGING WINDS IN EXCESS OF 60 MPH WILL BE THE BIGGEST THREATS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

STRONG TO SEVERE THUNDERSTORMS ARE ONCE AGAIN POSSIBLE ON TUESDAY.
THE MOST LIKELY AREAS TO BE IMPACTED INCLUDE THE PERMIAN BASIN AND
LEA COUNTY PLAINS OF SOUTHEAST NEW MEXICO. LARGE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH WILL BE THE BIGGEST THREATS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

THIS PRODUCT...ALONG WITH OTHER WATCHES...WARNINGS...ADVISORIES...
AND STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN
MIDLAND CAN BE FOUND ON THE INTERNET AT /LOWER CASE/
HTTP://WEATHER.GOV/MIDLAND

In the hours before

Special weather statement, Apr 26, 11:47 PM CDT, 4 hours 54 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
1147 PM CDT SUN APR 26 2009

TXZ063-070-270515-
GLASSCOCK-REAGAN-
1147 PM CDT SUN APR 26 2009

...SIGNIFICANT WEATHER ALERT...

THIS SIGNIFICANT WEATHER ALERT IS FOR NORTHEASTERN REAGAN AND
SOUTHEASTERN GLASSCOCK COUNTIES.

AN INTENSIFYING THUNDERSTORM WAS LOCATED OVER NORTHEASTERN REAGAN
COUNTY AT 1147 PM CDT...MOVING NORTHEAST AT 25 MPH.

AS THIS THUNDERSTORM INCREASES...SEVERE WEATHER MAY DEVELOP RAPIDLY.

GUSTY WINDS... HAIL... HEAVY RAIN... AND DEADLY LIGHTNING ARE
POSSIBLE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
WEST TEXAS.

Special weather statement, Apr 27, 1:42 AM CDT, 2 hours 59 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
142 AM CDT MON APR 27 2009

TXZ052-053-270730-
HOWARD-MITCHELL-
142 AM CDT MON APR 27 2009

...SIGNIFICANT WEATHER ALERT...

THIS SIGNIFICANT WEATHER ALERT IS FOR MITCHELL AND SOUTHEASTERN
HOWARD COUNTIES.

A STRONG THUNDERSTORM WAS LOCATED 10 MILES SOUTHEAST OF COAHOMA AT
140 AM CDT...MOVING NORTHEAST AT 25 MPH.

THIS STORM WILL AFFECT FARM TO MARKET ROAD 821 IN SOUTHEASTERN
HOWARD COUNTY AND FARM TO MARKET ROAD 2183 IN MITCHELL COUNTY.

STRONG WIND GUSTS AROUND 50 MPH...PEA SIZED HAIL... OCCASIONAL
LIGHTNING AND HEAVY RAIN WILL BE POSSIBLE WITH THIS STORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
WEST TEXAS.

Special weather statement, Apr 27, 4:22 AM CDT, 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
422 AM CDT MON APR 27 2009

TXZ063-070-270945-
GLASSCOCK-REAGAN-
422 AM CDT MON APR 27 2009

...SIGNIFICANT WEATHER ALERT...

THIS SIGNIFICANT WEATHER ALERT IS FOR GLASSCOCK AND NORTHERN REAGAN
COUNTIES.

A LINE OF THUNDERSTORMS WITH SMALL HAIL AND GUSTY WINDS WAS LOCATED
FROM 9 MILES NORTH OF BIGBY CORNER TO 6 MILES WEST OF STILES AT 422
AM CDT...MOVING NORTHEAST AT 30 MPH.

PEA TO MARBLE SIZED HAIL AND WINDS GUSTING TO AROUND 50 MPH ARE
POSSIBLE.

PEOPLE IN GLASSCOCK AND NORTHERN REAGAN COUNTIES...INCLUDING THE CITY
OF GARDEN CITY...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN
FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER CONDITIONS.

GUSTY WINDS... SMALL HAIL... HEAVY RAIN... AND DEADLY LIGHTNING ARE
POSSIBLE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT
MONDAY MORNING FOR WEST TEXAS.

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 26, 9:12 PM CDT	Severe Thunderstorm Warning	MAF	Reagan	63 min
Apr 26, 11:51 PM CDT	Severe Thunderstorm Warning	MAF	Reagan	24 min
Apr 27, 1:13 AM CDT	Severe Thunderstorm Warning	MAF	Midland	32 min
Apr 27, 1:46 AM CDT	Severe Thunderstorm Warning	MAF	Glasscock, Midland	59 min
Apr 27, 2:00 AM CDT	Areal Flood Advisory	MAF	Midland	3 hr
Apr 27, 2:34 AM CDT	Flash Flood Warning	MAF	Midland	3 hr
Apr 27, 3:06 AM CDT	Flash Flood Warning	MAF	Glasscock	3 hr
Apr 27, 3:16 AM CDT	Severe Thunderstorm Warning	MAF	Glasscock	59 min
Apr 27, 4:18 AM CDT	Flash Flood Warning	MAF	Mitchell	3 hr
Apr 27, 5:34 AM CDT	Flash Flood Warning	MAF	Glasscock, Reagan	3 hr
Apr 27, 6:09 AM CDT	Areal Flood Advisory	MAF	Glasscock	3 hr
Apr 27, 1:48 PM CDT	Fire Weather Watch	MAF		15 hr
Apr 27, 1:48 PM CDT	Red Flag Warning	MAF		7 hr

Nearby

Flash Flood Warnings in Texas, 2009 Every flash flood warning in 2009

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.