Rainfall totals through 7 AM

20 March 2012 David Reimer 0 Comments

This graphic shows the radar estimated rainfall accumulations from 7 AM on Monday through 7 AM on Tuesday. Generally speaking, the heaviest rainfall occurred within about 75 miles of the Interstate 35 corridor from San Antonio northward into Oklahoma. Keep in mind that rainfall is still occurring and that additional rainfall is likely in East Texas. This will go a long way to help improve, and in some cases, eliminate drought conditions!

Updated Rain Totals; Heaviest Rain on Saturday

08 March 2012 David Reimer 0 Comments

Here is the latest five day rainfall graphic from the Hydrometerlogical Prediction Center. This graphic shows expected rain totals from 6 PM on Thursday (so an hour ago) to 6 PM on Tuesday. Notice that these values haven’t changed much from this morning’s graphic. If anything, heavier rain totals have been shifted west a bit. We still expect rain totals to be heaviest along and east of the Interstate 35 corridor. From I-35 into East Texas, rainfall amounts will average three to five inches.

Here is a zoomed in shot of the rain totals. Luckily, rain expectations are not as high as they were a few days ago. We should still receive a widespread, multi-inch rain event, but we may not reach the threshold of significant flash flooding. If all this rain falls in the period of a few hours, there could definitely be flash flooding issues. If three to five inches of rain falls over the period of a day, the flash flooding potential will be mitigated somewhat. We’ll see what happens and will definitely keep you apprised of any flash flood watches in the coming days.

Updated Rain Totals; Heavy Rainfall Threat Increasing

08 March 2012 David Reimer 0 Comments

flood

The Hydrometerlogical Prediction Center is still forecasting a widespread, multi-inch rain event for all of East and Southeast Texas through Sunday. Along the Interstate 35 corridor, rain totals could run from 2 to 4 inches. East of Interstate 35, we’re talking rain totals from 4 to 8 inches. That would do wonders to improve drought conditions, but that much rain in such a short period of time could also cause some flooding issues.

Here is a zoomed in graphic displaying the rain totals. As you can see, the heaviest rain totals will be east of the Interstate 35 corridor. Current indications suggest that the heaviest rains will fall on Saturday. If we can spread these heaviest rain amounts over time verses getting them all in a few hours, that should help mitigate most flash flooding potential. However, we start getting two to three inches of rain an hour in locations, we’re definitely talking about flash flooding issues. The first thought that comes to mind is Houston. They could have a fairly unpleasant weekend if they end up getting all this rain. I’m not going to talk about flooding specifics until we get this severe weather threat out of the way this afternoon, but keep in mind that I expect the heavy rainfall event over the next few days to be the main story verses today’s severe weather threat.

Forecast Rain Accumulations through Tuesday

16 February 2012 David Reimer 0 Comments

Rain from 6 PM Thursday through 6 PM Tuesday

Many of us prayed for a rainfall graphic like this and we finally got it! The guys over at the Hydrometerlogical Prediction Center are forecasting rain across much of Texas over the next five days. Rainfall should average a quarter to half inch across West Texas, where amounts will be lightest. Rainfall amounts will be heavier as you approach the Interstate 35 corridor. Rainfall amounts of half and inch to one inch are likely in the D/FW Metroplex with rainfall amounts of one to two inches likely in the Austin/San Antonio areas. The heaviest rainfall amounts are expected closer to the Gulf Coast and across Southeast Texas. Right now, the guys at HPC have rainfall amounts between three and four inches for areas between Victoria and Lake Charles, including Houston.

Flash Flood Watch for Friday

The National Weather Service in Houston has issued a Flood Watch for much of their County Warning Area beginning tomorrow morning and continuing through the remainder of Friday. A flood watch is issued when there is the potential for heavy rainfall to cause flash flooding in vulnerable areas and on rivers. Flooding isn’t new to Houston due to their proximity to the Gulf of Mexico and their drainage issues. Be alert for any roadway closings tomorrow and remember, Turn Around Don’t Drown!

Here’s the text of the Flood Watch

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
321 PM CST THU FEB 16 2012

TXZ163-164-176>179-195>200-210>214-226-227-235>238-171200-
/O.NEW.KHGX.FA.A.0001.120217T0800Z-120217T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-
GALVESTON-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA-
MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON-
WHARTON-
INCLUDING THE CITIES OF...ALVIN...ANAHUAC...ANGLETON...BAY CITY...
BELLVILLE...BRENHAM...BROOKSHIRE...BRYAN...CALDWELL...CLEVELAND...
COLDSPRING...COLLEGE STATION...COLUMBUS...CONROE...CORRIGAN...
CROCKETT...DAYTON...EAGLE LAKE...EDNA...EL CAMPO...FREEPORT...
FRIENDSWOOD...GALVESTON...GROVETON...HEMPSTEAD...HOUSTON...
HUMBLE...HUNTSVILLE...KATY...LAKE JACKSON...LAKE SOMERVILLE...
LEAGUE CITY...LIBERTY...LIVINGSTON...MADISONVILLE...
MISSOURI CITY...MONT BELVIEU...NAVASOTA...ONALASKA...PALACIOS...
PASADENA...PEARLAND...PIERCE...PRAIRIE VIEW...RICHMOND...
ROSENBERG...SEALY...SHEPHERD...SUGAR LAND...TEXAS CITY...
THE WOODLANDS...TOMBALL...TRINITY...WEIMAR...WHARTON...WILLIS...
WINNIE
321 PM CST THU FEB 16 2012

...FLOOD WATCH IN EFFECT FROM 2 AM CST FRIDAY THROUGH FRIDAY
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A

* FLOOD WATCH FOR A PORTION OF SOUTHEAST TEXAS...INCLUDING THE
 FOLLOWING COUNTIES...AUSTIN...BRAZORIA...BRAZOS...BURLESON...
 CHAMBERS...COLORADO...FORT BEND...GALVESTON...GRIMES...
 HARRIS...HOUSTON...JACKSON...LIBERTY...MADISON...MATAGORDA...
 MONTGOMERY...POLK...SAN JACINTO...TRINITY...WALKER...WALLER...
 WASHINGTON AND WHARTON.

* FROM 2 AM CST FRIDAY THROUGH FRIDAY AFTERNOON

* AN UPPER LEVEL DISTURBANCE COUPLED WITH AN INCREASE IN MOISTURE
  AND FAVORABLE UPPER LEVEL WINDS WILL PRODUCE PERIODS OF RAIN
  LATE TONIGHT INTO FRIDAY MORNING. AT THIS TIME 1 TO 2 INCHES OF
  RAIN IS EXPECTED BY NOON FRIDAY. THERE WILL BE POCKETS OF
  HEAVIER RAIN AND SOME ISOLATED TOTALS BETWEEN 2 AND 3 INCHES
  WILL BE POSSIBLE.

* HEAVY RAIN EARLIER THIS WEEK HAS LEFT SOILS SATURATED. FLOODING
  OCCURRED EARLIER IN THE WEEK IN GRIMES AND WALKER COUNTIES WITH
  1 TO 3 INCHES OF RAIN. ANY ADDITIONAL RAIN WILL EXACERBATE AN
  ALREADY DANGEROUS SITUATION. ANOTHER WEATHER SYSTEM WILL
  APPROACH THE REGION LATE FRIDAY NIGHT AND SATURDAY AND COULD
  BRING ADDITIONAL HEAVY RAIN TO SOUTHEAST TEXAS. THE FLOOD WATCH
  WILL LIKELY BE EXTENDED THROUGH SATURDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

Flood Watch for Houston Metro on Friday

16 February 2012 David Reimer 0 Comments

Flash Flood Watch for Friday

The National Weather Service in Houston has issued a Flood Watch for much of their County Warning Area beginning tomorrow morning and continuing through the remainder of Friday. A flood watch is issued when there is the potential for heavy rainfall to cause flash flooding in vulnerable areas and on rivers. Flooding isn’t new to Houston due to their proximity to the Gulf of Mexico and their drainage issues. Be alert for any roadway closings tomorrow and remember, Turn Around Don’t Drown!

Here’s the text of the Flood Watch

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
321 PM CST THU FEB 16 2012

TXZ163-164-176>179-195>200-210>214-226-227-235>238-171200-
/O.NEW.KHGX.FA.A.0001.120217T0800Z-120217T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-
GALVESTON-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA-
MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON-
WHARTON-
INCLUDING THE CITIES OF...ALVIN...ANAHUAC...ANGLETON...BAY CITY...
BELLVILLE...BRENHAM...BROOKSHIRE...BRYAN...CALDWELL...CLEVELAND...
COLDSPRING...COLLEGE STATION...COLUMBUS...CONROE...CORRIGAN...
CROCKETT...DAYTON...EAGLE LAKE...EDNA...EL CAMPO...FREEPORT...
FRIENDSWOOD...GALVESTON...GROVETON...HEMPSTEAD...HOUSTON...
HUMBLE...HUNTSVILLE...KATY...LAKE JACKSON...LAKE SOMERVILLE...
LEAGUE CITY...LIBERTY...LIVINGSTON...MADISONVILLE...
MISSOURI CITY...MONT BELVIEU...NAVASOTA...ONALASKA...PALACIOS...
PASADENA...PEARLAND...PIERCE...PRAIRIE VIEW...RICHMOND...
ROSENBERG...SEALY...SHEPHERD...SUGAR LAND...TEXAS CITY...
THE WOODLANDS...TOMBALL...TRINITY...WEIMAR...WHARTON...WILLIS...
WINNIE
321 PM CST THU FEB 16 2012

...FLOOD WATCH IN EFFECT FROM 2 AM CST FRIDAY THROUGH FRIDAY
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A

* FLOOD WATCH FOR A PORTION OF SOUTHEAST TEXAS...INCLUDING THE
 FOLLOWING COUNTIES...AUSTIN...BRAZORIA...BRAZOS...BURLESON...
 CHAMBERS...COLORADO...FORT BEND...GALVESTON...GRIMES...
 HARRIS...HOUSTON...JACKSON...LIBERTY...MADISON...MATAGORDA...
 MONTGOMERY...POLK...SAN JACINTO...TRINITY...WALKER...WALLER...
 WASHINGTON AND WHARTON.

* FROM 2 AM CST FRIDAY THROUGH FRIDAY AFTERNOON

* AN UPPER LEVEL DISTURBANCE COUPLED WITH AN INCREASE IN MOISTURE
  AND FAVORABLE UPPER LEVEL WINDS WILL PRODUCE PERIODS OF RAIN
  LATE TONIGHT INTO FRIDAY MORNING. AT THIS TIME 1 TO 2 INCHES OF
  RAIN IS EXPECTED BY NOON FRIDAY. THERE WILL BE POCKETS OF
  HEAVIER RAIN AND SOME ISOLATED TOTALS BETWEEN 2 AND 3 INCHES
  WILL BE POSSIBLE.

* HEAVY RAIN EARLIER THIS WEEK HAS LEFT SOILS SATURATED. FLOODING
  OCCURRED EARLIER IN THE WEEK IN GRIMES AND WALKER COUNTIES WITH
  1 TO 3 INCHES OF RAIN. ANY ADDITIONAL RAIN WILL EXACERBATE AN
  ALREADY DANGEROUS SITUATION. ANOTHER WEATHER SYSTEM WILL
  APPROACH THE REGION LATE FRIDAY NIGHT AND SATURDAY AND COULD
  BRING ADDITIONAL HEAVY RAIN TO SOUTHEAST TEXAS. THE FLOOD WATCH
  WILL LIKELY BE EXTENDED THROUGH SATURDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.