MAY 2019: Wednesday Storm Complex/Scattered Showers To End May

General Weather Discussions and Analysis
unome
Posts: 3059
Joined: Fri Feb 12, 2010 6:11 pm

https://twitter.com/DroughtCenter/statu ... 7663024134

@DroughtCenter
37m37 minutes ago
US #Drought Monitor 5 30 19: Drought contracted in Oregon, Wyoming and central Plains, but expanded in northern Rockies, Texas, Tennessee Valley and Southeast. In Lower 48, 3.3% of area is experiencing drought. https://droughtmonitor.unl.edu

Evaporative Demand Drought Index (EDDI)

https://www.esrl.noaa.gov/psd/eddi/
What is EDDI?

The Evaporative Demand Drought Index (EDDI) is an experimental drought monitoring and early warning guidance tool. It examines how anomalous the atmospheric evaporative demand (E0; also known as "the thirst of the atmosphere") is for a given location and across a time period of interest. EDDI is multi-scalar, meaning that this period—or "timescale"—can vary to capture drying dynamics that themselves operate at different timescales; we generate EDDI at 1-week through 12-month timescales.

This webpage offers a frequently updated assessment of current conditions across CONUS, southern parts of Canada, and northern parts of Mexico; a tool to generate historical time series of EDDI for a user-selected region; introductions to the EDDI team; and a list of resources for users to explore EDDI and its applications further.
Why use EDDI?

EDDI can offer early warning of agricultural drought, hydrologic drought, and fire-weather risk by providing near-real-time information on the emergence or persistence of anomalous evaporative demand in a region. A particular strength of EDDI is in capturing the precursor signals of water stress at weekly to monthly timescales, which makes EDDI a strong tool for preparedness for both flash droughts and ongoing droughts.
How often is EDDI updated?

Currently, EDDI is generated daily—though with a 5-day lag-time—by analyzing a near-real-time atmospheric dataset. This lag-time results from the procedures to quality control the meteorological data used to estimate evaporative demand. There is also an ongoing effort to forecast EDDI based on seasonal climate-forecast information.
User avatar
jasons2k
Posts: 5360
Joined: Thu Feb 04, 2010 12:54 pm
Location: Imperial Oaks
Contact:

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1015 AM CDT Thu May 30 2019

.UPDATE...
Morning ragged line of convection is waning as outflow works its
way south of downtown Houston at the bottom of the 9 AM hour.
Expecting this outflow boundary to hang up somewhere near the
coast through the day. CAMs are keeping a surface weakness "slash"
boundary lingering in the I-10 and points south vicinity through
the day. Satellite derived 1.7 inch pwats with a forecast
convective temperature of 90 F has moderate to high end chances
for the redevelopment of southern third CWA afternoon scattered
showers with isolated storms. Maximum temperatures will reach the
upper 80s with a few low 90 F spots today. Heat indices will
likely achieve the upper 90s this afternoon across the southern
half of the forecast area. Similar overnight conditions with a
general southeast breeze becoming more variable near sunrise. With
little change in this moist resident 1.7 to near 2.0 inch
pwat/greater than 70% lower 850mb %RH air mass, expect partially
to mostly cloudy skies going through tomorrow. A western shortwave
disturbance and subsequent area of Central Texas convection moving
through in the near zonal flow will pass across tomorrow afternoon.
This has kept likely daytime Friday POPS in place for this update.
31
User avatar
jasons2k
Posts: 5360
Joined: Thu Feb 04, 2010 12:54 pm
Location: Imperial Oaks
Contact:

Looks like the outflow boundary is starting to hang-up and stall. The sun is coming out. Could get interesting this afternoon...
User avatar
Texaspirate11
Posts: 1278
Joined: Tue Dec 31, 2013 12:24 am
Contact:

AHHHH we had a great little downpour...very appreciated by my grass & garden this morning!
Just because you're disabled, you don't have to be a victim
Be Weather Aware & Prepared!
Barbara Jordan Winner in Media
Disability Integration Consultant
User avatar
srainhoutx
Site Admin
Site Admin
Posts: 19611
Joined: Tue Feb 02, 2010 2:32 pm
Location: Maggie Valley, NC
Contact:

Cool front just pushed through NW Harris County.
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey

Member: National Weather Association
Facebook.com/Weather Infinity
Twitter @WeatherInfinity
Cpv17
Posts: 5234
Joined: Fri Aug 31, 2018 1:58 pm
Location: El Campo/Wharton
Contact:

Man the heat out there today is no joke. Feels like the hottest day of the year so far imo.
Cromagnum
Posts: 2592
Joined: Thu Feb 03, 2011 10:42 pm
Contact:

As feared, not a single drop at my house and then the line reformed with vigor to the E/SE. Are we done for the day or another shot tonight? Looking forward to dragging the water hose around all weekend again as it is...
User avatar
Belmer
Global Moderator
Global Moderator
Posts: 744
Joined: Thu Jan 06, 2011 7:29 pm
Location: Dallas, TX
Contact:

Cromagnum wrote: Thu May 30, 2019 12:44 pm As feared, not a single drop at my house and then the line reformed with vigor to the E/SE. Are we done for the day or another shot tonight? Looking forward to dragging the water hose around all weekend again as it is...
Not all hope is lost for today... or tomorrow for that matter. With a dying boundary situated over us leaving outflow boundaries in place over the region and a decently unstable airmass, additional storm development is possible later this afternoon into the evening. Any storms that do develop will have the potential to drop copious amount of rain in a short time due to little steering currents.
With the heat of the day tomorrow, once reach our convective temperature, more storms are likely to form along any remaining boundaries that reside overnight. It is that time of the year where there may be a 20-30% rain chance, but if you fall under the lone storm-or-two that develops, you'll have a happy lawn.
Blake
Boomer Sooner
User avatar
Katdaddy
Global Moderator
Global Moderator
Posts: 2501
Joined: Thu Feb 04, 2010 8:18 am
Location: League City, Tx
Contact:

Special Weather Statement
National Weather Service Houston/Galveston TX
152 PM CDT Thu May 30 2019

TXZ227-237-238-301915-
Inland Brazoria TX-Inland Galveston TX-Fort Bend TX-
152 PM CDT Thu May 30 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN GALVESTON...EASTERN
FORT BEND AND NORTH CENTRAL BRAZORIA COUNTIES UNTIL 215 PM CDT...

At 151 PM CDT, Doppler radar was tracking a strong thunderstorm over
western Manvel, moving northeast at 5 to 10 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Southwestern Pearland, Alvin, Manvel, Fresno, Arcola, Iowa Colony and
eastern Sienna Plantation.
User avatar
srainhoutx
Site Admin
Site Admin
Posts: 19611
Joined: Tue Feb 02, 2010 2:32 pm
Location: Maggie Valley, NC
Contact:

Good soaking going on for those under the thunderstorms that erupted along the frontal boundary. Several HCFCD rain gauges reporting 1 inch in 15 minutes.
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey

Member: National Weather Association
Facebook.com/Weather Infinity
Twitter @WeatherInfinity
Post Reply
  • Information
  • Who is online

    Users browsing this forum: Ahrefs [Bot], Amazon [Bot] and 54 guests