Alert archive / Texas / River Flood Warnings in 2015

River Flood Warning 43, NWS Houston/Galveston, TX

May 12, 2015Harris County, Montgomery County, Texas

NWS Houston/Galveston, TX issued this river flood warning at May 12, 2015, 10:03 AM CDT for Harris County, Montgomery County, Texas. It took effect at May 13, 2015, 3:15 AM CDT. It was in force for 8 days.

The area

The counties it named.

The facts

Issued
May 12, 2015, 10:03 AM CDT (15:03 UTC)
In effect from
May 13, 2015, 3:15 AM CDT
Expired
May 21, 2015, 11:44 AM CDT
In force
8 days
Issued by
NWS Houston/Galveston, TX
Area
Storm-based polygon
Flood severity
Moderate

Counties Harris County, TX, Montgomery County, TX

The radar

The Houston radar (KHGX), 76 km from the middle of the area, began a volume at 15:03 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.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this river flood warning went out at May 12, 6:53 AM CDT, 3 hours 10 minutes earlier.

Area forecast discussion, May 12, 6:53 AM CDT, 3 hours 10 minutes before
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Hazardous weather outlook, May 12, 6:30 AM CDT, 3 hours 33 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
630 AM CDT TUE MAY 12 2015

TXZ163-164-176>179-195>200-210>214-226-227-235>238-131130-
HOUSTON-TRINITY-MADISON-WALKER-SAN JACINTO-POLK-BURLESON-BRAZOS-
WASHINGTON-GRIMES-MONTGOMERY-LIBERTY-COLORADO-AUSTIN-WALLER-
HARRIS-CHAMBERS-WHARTON-FORT BEND-JACKSON-MATAGORDA-BRAZORIA-
GALVESTON-
630 AM CDT TUE MAY 12 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
TEXAS.

...FLOOD WATCH IN EFFECT UNTIL 7 PM TONIGHT...

.DAY ONE...TODAY AND TONIGHT

ALTHOUGH MOST OF THE REGION WILL BE PRECIPITATION FREE THROUGH
THE DAY...ANY SCATTERED AFTERNOON RAIN AND STORM ACTIVITY COULD
CAUSE LOCALIZED FLOODING CONCERNS. OTHER THAN URBANIZED AREAS...FAR
NORTHERN COUNTIES AND SOUTHWESTERN COASTAL COUNTIES CLOSER TO THE
GULF WILL BE THE MOST SUSCEPTIBLE TO FLOODING. THESE ARE THE COUNTIES
THAT HAVE RECEIVED THE HIGHEST RAINFALL SINCE SUNDAY NIGHT...THEIR
SATURATED GROUNDS WILL NOT BE ABLE TO HANDLE RAINFALL RATES IN EXCESS
OF 2 INCHES AN HOUR BEFORE RUNOFF OCCURS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A HIGHER PROBABILITY OF RETURN PRECIPITATION WEDNESDAY INITIATED
FROM THE PASSAGE OF A VICINITY SHORTWAVE DISTURBANCE. LOWERING
RAIN AND STORM CHANCES EACH SUBSEQUENT DAY THROUGH THE END OF THE
WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS WILL LIKELY NOT BE NEEDED TODAY...POSSIBLY WITH RETURN
PRECIPITATION WEDNESDAY.

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 11, 7:28 PM CDTSpecial Marine WarningHGX62 min
May 11, 8:26 PM CDTSpecial Marine WarningHGX64 min
May 11, 8:33 PM CDTSmall Craft AdvisoryHGX8 hr
May 11, 8:35 PM CDTSpecial Marine WarningHGX55 min
May 11, 9:33 PM CDTSpecial Marine WarningHGX57 min
May 11, 10:31 PM CDTSpecial Marine WarningHGX119 min
May 11, 10:51 PM CDTAreal Flood AdvisoryHGXBrazoria, Galveston114 min
May 12, 12:20 AM CDTSpecial Marine WarningHGX25 min
May 12, 12:31 AM CDTFlash Flood WarningHGXBrazoria3 hr
May 12, 12:40 AM CDTSpecial Marine WarningHGX65 min
May 12, 1:26 AM CDTAreal Flood AdvisoryHGXBrazoria, Galveston2 hr
May 12, 1:35 AM CDTSpecial Weather StatementHGXGalveston40 min
May 12, 1:40 AM CDTTornado WarningHGXBrazoria, Galveston22 min
May 12, 8:53 AM CDTSpecial Marine WarningHGX67 min
May 12, 9:57 AM CDTSpecial Marine WarningHGX18 min
May 12, 10:03 AM CDTRiver Flood WarningHGXBrazos, Grimes, Madison11 days
May 12, 10:12 AM CDTSmall Craft AdvisoryHGX19 hr
May 12, 10:16 AM CDTSpecial Marine WarningHGX89 min
May 12, 2:30 PM CDTAreal Flood AdvisoryHGXBrazoria, Matagorda2 hr
May 12, 3:12 PM CDTAreal Flood AdvisoryHGXColorado, Jackson, Matagorda, Wharton3 hr
May 12, 3:32 PM CDTFlash Flood WatchHGXAustin, Brazoria, Brazos, Burleson, Chambers, Colorado and 17 more30 hr
May 12, 4:10 PM CDTTornado WarningHGXGalveston35 min
May 12, 4:30 PM CDTAreal Flood AdvisoryHGXBrazoria2 hr
May 12, 4:48 PM CDTSpecial Weather StatementHGXMontgomery42 min
May 12, 4:53 PM CDTAreal Flood AdvisoryHGXGalveston3 hr
May 12, 5:01 PM CDTSevere Thunderstorm WarningHGXMontgomery, San Jacinto, Walker44 min
May 12, 5:08 PM CDTFlash Flood WarningHGXGalveston3 hr
May 12, 5:34 PM CDTAreal Flood AdvisoryHGXMontgomery116 min
May 12, 5:47 PM CDTAreal Flood AdvisoryHGXBrazoria, Galveston118 min
May 12, 5:50 PM CDTSpecial Marine WarningHGX40 min
May 12, 6:00 PM CDTAreal Flood AdvisoryHGXLiberty2 hr
May 12, 6:01 PM CDTAreal Flood AdvisoryHGXChambers119 min
May 12, 6:17 PM CDTSpecial Weather StatementHGXPolk43 min
May 12, 6:20 PM CDTSpecial Marine WarningHGX115 min
May 12, 6:33 PM CDTSpecial Weather StatementHGXSan Jacinto42 min
May 12, 6:42 PM CDTAreal Flood AdvisoryHGXBrazoria2 hr
May 12, 6:55 PM CDTSpecial Marine WarningHGX65 min
May 12, 6:57 PM CDTFlash Flood WarningHGXBrazoria3 hr

Nearby

River Flood Warnings in Texas, 2015Every river flood warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.