As a National Weather Service storm spotter, I like to keep a close eye on the weather, especially when severe weather is in the forecast. For those days, I created this web page and it's larger companion page, Daily Weather Charts. The intent is to give me an amateur's "map room" for north Alabama. However, this is not a map room in the conventional sense, since it is not my intent to make a weather forecast. Instead, the purpose of this page is to answer these questions: Is today a severe weather day? If so, what, where and when?
Please feel free to copy and adapt this page to your needs.
A URL for this page:
http://tinyurl.com/6hwnh2
Source: The Weather Channel
If there is a notation "See Text," refer to the text messages at Day One Convective Outlook.
Radar Images
SE US Radar
Source: Weather.com
Alabama
![]()
Source: Weather Underground
Additional SE Radar
Huntsville
and
Regional Weather Map, Weather Underground
Hytop (Alabama), National Weather Service
Columbus Air Force Base (Mississippi), National Weather Service
Southern Mississippi Valley Sector, National Weather Service
NEXRAD for HSV
/
Regional NEXRAD for SE US
Satellite /
Severe / Tornado /
Hurricane
Alabama - Next Generation Weather Lab, College of DuPage
Additional maps from NBC's WeatherPlus web site: National Radar | National Satellite | SE US Radar | SE US Satellite
Satellite Images
SE US – Infrared
Next Generation Weather Lab, College of DuPage
Surface and Upper Air Maps
RAP Real-Time Weather
Data
The National Center for Atmospheric Research (NCAR)
Operated by the University Corporation of Atmospheric Research
500 mb Upper Air Map
Source: RAP Real-Time Weather Data
An additional 500 mb Map is available from Department of Commerce "Daily Weather Map"
Additional Surface and Upper Air Maps, National Weather Service,
Skew-T Sounding Chart
Station
KEET (Birmingham,
Shelby County, AL)
Source: Unisys.com
Skew-T Questions
In addition to the comments in the NWS Skew-T itself, there are several other values to monitor:
Y / N - CAPE greater than 1500 J/kg? In the forecast? - Y / N
Y / N - CINH less than 50? In the forecast? - Y / N
Y / N - LI (Lifted Index) less than -5? In the forecast? - Y / N
Y / N - Upper level winds (between 500 and 300 mb level) of greater than 100 knots?
Y / N - Low level winds (850 to 700 mb) at 25 knots or greater?
Y / N - Atmospheric winds increasing at higher levels (upper level speed shear greater than 70 knots)?
Y / N - Atmospheric winds from different directions (directional shear of 60 degrees or more from the surface to 700 mb)?
Y / N - Super-adiabatic lapse rate – where the temperature decreases with height – at a rate of greater than 10 degrees Celsius per kilometer? (data is displayed on the NWS Skew-T chart in the lower left corner)
Y / N - Dew Point greater than 55 degrees?
Y / N - Temperature greater than 80 degrees? In the forecast? - Y / N
Note: High temperature and high dew point indicates high instability, increasing the threat of severe weather.
Y / N - Is there a 30 to 50 degree surface temperature/dew point spreads? (may indicate high microburst potential)
In the event that some of the above values indicate a potential for thunderstorms, bring up the Text version of the SKEW-T and check the following values: Lifted Index, Showalter Index, K Index, Energy Index.
Note: I've acquired these questions from numerous
sources, believed to be reliable.
If this is not the case, please contact me at
w4dda at arrl dot net. Thanks!
[Insert Current Conditions From My Personal Weather Station Here]
Skew-T Sounding Charts from National Weather Service:
I find that some information on the NWS chart is easier to read, and there is additional information that is found on those charts that is not found on the UNISYS chart. On days where severe weather is in the forecast, I download, save and incorporate the most recent NWS soundings.
Discussions of the contents of a SKEW-T diagram:
UNISYS,
Upper Air Sounding Details
NWS,
Explanation of SPC Severe Weather Parameters
Jeff Haby,
Getting To Know SKEW-T Parameters and
Forecasting Severe Weather Using SKEW-T
Convective
Outlook, Day 1
Outlook, Day 1
Storm Prediction Center,
NWS
If there is a notation "See Text," refer to the text messages at the Day One Convective Outlook. Convective Outlooks for Day 1 Through Day 8 are also available.
Enhanced Resolution Thunderstorm Outlook
Atlantic Tropical Cyclone Activity
National Hurricane
Center, NOAA
Additional Hurricane-related resources from the NESDIS and the NWS:
Atlantic Hurricanes, NOAA. This page includes archives, plus today's satellite imagery of the Atlantic Ocean. As needed, access from the National Geophysical Data Center (NGDC)
METEOSAT
Full disk Global Satellite Image (Africa, including the Atlantic ocean)
Visible
Infrared
Geostationary Satellite
Server
Tropical Atlantic/Pacific
Severe Storm Sectors
METEOSAT (Europe & Africa)
GMS (Western Pacific)
Tropical Cyclone Maps from WeatherPlus.com:
Atlantic Ocean - Visible Satellite / Infrared Satellite
Gulf of Mexico - Visible Satellite / Infrared Satellite. The Gulf maps cover all of the South East, plus as far west as New Mexico and as far north as New Jersey and Pennsylvania.
Puerto Rico - Visible Satellite / Infrared Satellite
Bahamas - Visible Satellite / Infrared Satellite
The Loop Current - MGSVA Three-Month Plot
National
Forecast Map
Hydrometeorological Prediction Center, NOAA
Other good national forecast maps include: Weather Underground |The Daily Weather Map | Unisys | University at Albany
Several weather forecast models: Model Output Statistics (contour plots of weather forecast data) from Unisys Weather Services: NGM Model | NAM/Eta Model | GFS/Avn Model | GFSx/MRF Model | RUC Model | ECMWF Model
Two surface analysis forecast loops: USSATSFC & RADSFCUS
Final Extended Forecast Discussion & Additional Forecast Discussions, The Hydrometeorological Prediction Center (HPC)
Rules for Finding Fronts, Professor Paul Sirvatka, College of DuPage
[Insert
the Day One Convective Outlook or Final Extended Forecast Discussion here]
Quantitative Precipitation Forecast
24 Hour Precipitation Total - Day 1
24 Hour Precipitation Totals (Valid 12Z-12Z)
Quantitative Precipitation Forecasts
Quantitative Precipitation Forecast Discussion
“
Introduction to Various QPF Techniques,” Norman Junker, HPC
Graphical Forecast for Huntsville
Graphical Forecast for the
Southern Mississippi Valley Text Products:
Short Term Forecast (The 6-Hour NOWCAST).
Not issued during fair weather. Access during inclement weather; carefully check the date and time.
Hazardous Weather Outlook (HWO)
Area Forecast Discussion (AFD)
Definitions This is a scratch-pad area to
capture acronyms and terms in the above forecasts and discussions that I'm
unfamiliar with. They are later copied to a larger document that I maintain.
Weather at 417 Hughes Drive
Current Conditions
Today's Weather Conditions:
[Insert
Current Conditions From My Personal Weather
Station
Here]
References
Acronyms and Glossary at JetStream – Online Weather School at the Southern Region
Headquarters of the National Weather Service; an excellent
resource.
Huntsville
Office, NWS
Today's History
Source: Weather Underground
Other Severe Weather Day Resources
NOAA Weather Radio (162.400 in Huntsville area and streamed over the Internet from Weather Underground)
Local television weather:
▪
WAAY TV (31)
▪
WAFF TV (48)
▪
WHNT TV
(19)
Weather and emergency amateur radio for
Madison County, AL:
▪
SKYWARN
(Huntsville Repeater, 147.240 / PL 82.5)
▪
ARES
(146.940 / PL 100.0)
▪
RACES (147.220 / PL 136.5)
▪
Alabama Emergency
Management Agency ARES Net (3.965 MHz)
▪
kBrews Weather Spotting Frequency Lists -
Alabama
▪
Amateur High
Frequency Emergency Hurricane Nets
▪
Alabama NOAA
Weather Radio Frequencies by County
▪ Other
Alabama Emergency
Nets (courtesy of Birmingham Amateur Radio Club)
Alabama State Information from NWS
Tropical Weather, Weather Underground
IWIN. IWIN is the web version of the Emergency Managers Weather Information Network (EMWIN) service that allows users to obtain weather forecasts, warnings, and other information directly from the National Weather Service in almost real time.
NSSTC Collaborative Weather Blog.
Emergency Resources
Know your enemy! — that is, what are the threats that you and your family will face in your area? Then make a plan, prepare a disaster kit, and be prepared to take appropriate action as directed by your local emergency management agency. If ordered to evacuate, do not delay. Flood waters can rise with great speed. About 60% of all flood deaths are people in vehicles that were swept away by moving water, including children who were passengers. The next flood can always be bigger than floods you have seen before; 100-year floods can occur every year.
History's lesson is clear: those who are prepared are more likely to survive, and those who are not prepared are the least likely to survive (this includes those who are overweight or have mobility issues).
This is an issue of personal responsibility. It's not the government's job to save me or my family. It is my job to be prepared for an emergency.
It is unrealistic to expect that any level of government will be able to step in and save me and my family in the event of a catastrophic emergency. Some storms will be so severe that local governments will be unable to rescue citizens in immediate danger. If you ignore a mandatory evacuation order, you will be on your own until after the storm passes, flood waters have subsided, and roads have been cleared. This could be days or weeks, and if I haven't put aside extra food and water, my family and I will be getting very hungry and thirsty.
If the sheriff comes by and tells you either to leave or to put on a body tag, then you've had fair notice. Likewise, if the National Weather Service says that people who ignore evacuation notices “will face certain death,” then you've had fair notice.
During Hurricane Ike, I heard an telephone interview on television with a woman on the Texas coast who said that she was trusting in God to protect her. Due to flooding, she was already cut off from evacuation routes, and this was more than 15 hours before landfall. She was told two days before that she was in a danger area. She was told the day before that she was under a mandatory evacuation order. In short, God had sent her at least two clear messages, which she ignored.
If God sends you a canoe, get in and start paddling.
Be Informed, Be Involved, Be Ready!
|
National Weather Service Storm Prediction Center National Hurricane Center Disaster Preparedness, National Weather Service |
Alabama EMA Alabama Disaster Web Alabama Hurricane Center Southern Region, National Weather Service |
Other National Weather Resources
Anything Weather
AccuWeather - AccuWeather Hurricane Center
California Regional Weather Server, San Francisco State University
Intellicast.com
Live Weather Images
MSNBC Weather
Unisys Weather
UM Weather, University of Michigan
USA Today Weather Page
Weather.com
Weather.org
WeatherBonk
WeatherBug
Weather For You
WeatherPlus, NBC
Weather Underground
WeatherUSA.Net
WxUSA
Directories
Other : About.com:Weather
Text Products
These are not NWS products. I created them for my personal use in Huntsville, Alabama. Please feel free to copy and adapt to your situation as needed.
"Is Today A Severe
Weather Day?"
Open Office /
Microsoft Word
Storm Spotter Reference Sheet - Huntsville (PDF)
My Other Weather Pages
Weather Data For Family & Friends
Current Conditions - Hughes Drive
|
W4DDA |
Huntsville Amateur Radio Club
(HARC)
Eva Amateur Radio Club (EARC)
Decatur Amateur Radio Club (DARC)
North Alabama Repeater
Association (NARA)
ARRL-Alabama
ARES-Alabama /
Madison County ARES
Huntsville-Madison County
Radio Amateur Civil Emergency Service (RACES)

Scott & Kimberly Davis - N3FJP & KA3SEQ -
www.n3fjp.com
|
|
Notes concerning saving this page.
On potentially severe weather days, I bring up this web page, and then save it to my hard drive. The purpose is to get copies of that day's graphics on my hard drive.
I then open that saved page, and copy and paste the contents into a text document (it is easier for me to supplement and edit a text document than a new HTML document).
I have found that when I re-open a saved web page at a later date, that page will often look for the current graphic, rather than the saved graphic (a function of the "image source" function in HTML). By immediately copying the saved web page (including saved graphics) into a text document, I am able to ensure that I will be able to review those contents on later dates.
Current Projects:
This page is frequently updated ... I add, subtract and move stuff around. Check back frequently.
1. One project is an attempt to pass text from JavaScript to HTML. The reason is to capture certain NWS images that are saved only in a date-specific format or in a date-specific folder. Such images are otherwise impossible to capture and reproduce on a page such as this. In particular, I would like to capture the National Weather Service's Skew-T Sounding Chart images and Surface and Upper Air Maps. The current work: Day Month Year Scripts
2. Another project addresses this question: Is there a way that this text can be "included" in a box on this page? The seven-day forecast for Huntsville, "text version," can be found at:
http://forecast.weather.gov/MapClick.php?zoneid=ALZ006&zflg=1&TextType=1. (Text Version)
I would like to be able to include that text in a box on this page (with appropriate attribution, of course).
Due to a move that
will occur in the middle of October,
all links to current conditions at our residence will be temporarily
broken.
We are moving from Hughes Drive, Huntsville, Al, to
Willow Place, Priceville,
Al,
a distance of about 25 miles.
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