Alert archive / Alabama / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 78, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at May 17, 2003, 11:38 AM CDT for Jackson County, Alabama. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 17, 2003, 11:38 AM CDT (16:38 UTC)
- Expired
- May 17, 2003, 12:15 PM CDT
- In force
- 37 min
- Issued by
- NWS Huntsville, AL
- Area
- Counties, with a storm outline in the text
County Jackson County, AL
The radar
The Northeast Alabama radar (KHTX), 19 km from the middle of the area, began a volume at 16:40 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 17, 9:20 AM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 4.6 hours before the alert went out and 160 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1273 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Huntsville, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 17, 9:28 AM CDT, 2 hours 10 minutes earlier.
Area forecast discussion, May 17, 9:28 AM CDT, 2 hours 10 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HUNTSVILLE AL 928 AM CDT SAT MAY 17 2003 UPDATED ZONES TO MENTION TORNADO WATCH FOR ALL OF NRN AL UNTIL 3 PM. RADAR SHOWS IMPRESSIVE LINE OF STORMS FROM TN ALL THE WAY DOWN TO LA. THERE IS SOME GOOD WIND SHEAR IN NRN AL BUT ALSO CONCERN ABOUT HEAVY RAIN. BOTTOM LINE EXPECT A BUSY DAY AND TONIGHT AS VERY SLOW MOVING 5H CLOSED LOW CONTINUES TO AFFECT NRN AL. .HUN...TORNADO WATCH FOR ALL OF NRN ALABAMA UNTIL 3 PM. FLOOD WATCH FOR ALL OF NRN ALABAMA UNTIL 4 AM SUNDAY MORNING. SHUMWAY
Hazardous weather outlook, May 17, 7:16 AM CDT, 4 hours 22 minutes before
ALZ001>010-016-171815- HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE HUNTSVILLE AL 716 AM CDT SAT MAY 17 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA. .DAY ONE...(TODAY AND TONIGHT)... A FLOOD WATCH IS IN EFFECT FOR ALL OF NORTH ALABAMA THROUGH 4 AM SUNDAY MORNING. A SLOW MOVING UPPER LEVEL STORM SYSTEM...COMBINED WITH AMPLE MOISTURE AND INSTABILITY...WILL SET THE STAGE FOR SEVERAL ROUNDS OF SHOWERS AND THUNDERSTORMS ACROSS THE REGION TODAY AND TONIGHT. A FEW STORMS MAY BE CAPABLE OF PRODUCING DIME SIZE HAIL OR WIND GUSTS TO 60 MPH...BUT THE PRIMARY CONCERN WILL BE LOCALLY HEAVY RAIN AND POTENTIAL FLOOD PROBLEMS. ONE LINE OF STORMS WILL BRING A THREAT OF HAZARDOUS WEATHER TO PRIMARILY NORTHWEST ALABAMA THROUGH 10 AM...BUT ADDITIONAL STORMS ARE LIKELY THIS AFTERNOON AND EVENING. .DAYS TWO THROUGH SEVEN...(SUNDAY THROUGH FRIDAY)... THE THREAT OF WIDESPREAD HAZARDOUS WEATHER IS LOW. THE SLOW MOVING UPPER LEVEL SYSTEM WILL KEEP THE CHANCE OF SHOWERS AND THUNDERSTORMS CONTINUING THROUGH MID WEEK. A FRONT WILL BRING DRIER AND COOLER CONDITIONS TO THE REGION BY THURSDAY. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL MAY BE NEEDED TODAY OR TONIGHT. CBD
In the hours before
Special weather statement, May 17, 6:47 AM CDT, 4 hours 51 minutes before
ALZ001-002-171230- SIGNIFICANT WEATHER ALERT NATIONAL WEATHER SERVICE HUNTSVILLE AL 647 AM CDT SAT MAY 17 2003 ...SIGNIFICANT WEATHER ALERT FOR CLOUD TO GROUND LIGHTNING... HEAVY RAIN AND GUSTY WINDS... AT 650 AM...A LINE OF STRONG THUNDERSTORMS WAS APPROACHING TISHOMINGO COUNTY IN NORTHEAST MISSISSIPPI. MOVEMENT WAS EAST AT AROUND 35 MPH. AREAS AROUND WATERLOO...RIVERTON AND WRIGHT WILL SEE HEAVY RAIN AND WIND GUSTS TO 40 MPH BY AROUND 730 AM. CBD
Special weather statement, May 17, 7:41 AM CDT, 3 hours 57 minutes before
ALZ001-002-171329- SIGNIFICANT WEATHER ALERT NATIONAL WEATHER SERVICE HUNTSVILLE AL 741 AM CDT SAT MAY 17 2003 ...SIGNIFICANT WEATHER ALERT FOR CLOUD TO GROUND LIGHTNING... HEAVY RAIN AND GUSTY WINDS... A LINE OF STRONG THUNDERSTORMS WILL MOVE ACROSS LAUDERDALE AND COLBERT COUNTIES AT AROUND 45 MPH. THROUGH 830 AM EXPECT LOCALLY HEAVY RAINFALL...FREQUENT LIGHTNING...AND WINDS GUESTING TO NEAR 40 MPH WITH THIS LINE OF STORMS. LOCATIONS IN THE PATH OF THESE STORMS INCLUDE WATERLOO...CHEROKEE...AND RIVERTON. RAINFALL AMOUNTS OF UP TO 2 INCHES ARE POSSIBLE IN WESTERN COLBERT AND LAUDERDALE COUNTIES. KTW
Special weather statement, May 17, 8:40 AM CDT, 2 hours 58 minutes before
ALZ001>004-171430- SIGNIFICANT WEATHER ALERT NATIONAL WEATHER SERVICE HUNTSVILLE AL 840 AM CDT SAT MAY 17 2003 ...SIGNIFICANT WEATHER ALERT FOR CLOUD TO GROUND LIGHTNING... HEAVY RAIN AND GUSTY WINDS... A LINE OF STRONG THUNDERSTORMS WILL MOVE NORTHEAST ACROSS LAUDERDALE AND COLBERT COUNTIES AT 45 MPH. THROUGH 930 AM EXPECT LOCALLY HEAVY RAINFALL...FREQUENT LIGHTNING...AND WINDS GUSTING TO NEAR 40 MPH WITH THIS LINE OF STORMS. LOCATIONS IN THE PATH OF THESE STORMS INCLUDE WATERLOO...CHEROKEE...RUSSELLVILLE...FLORENCE...AND LEXINGTON. RAINFALL AMOUNTS OF UP TO 2 INCHES ARE POSSIBLE IN STRONGER STORMS. KTW
Special weather statement, May 17, 9:38 AM CDT, 2 hours before
ALZ001>004-171530- SIGNIFICANT WEATHER ALERT NATIONAL WEATHER SERVICE HUNTSVILLE AL 938 AM CDT SAT MAY 17 2003 ...SIGNIFICANT WEATHER ALERT FOR CLOUD TO GROUND LIGHTNING... HEAVY RAIN AND GUSTY WINDS... A LINE OF STRONG THUNDERSTORMS CONTINUE TO MOVE NORTHEAST ACROSS LAUDERDALE AND COLBERT COUNTIES AT 45 MPH. THROUGH 1030 AM EXPECT LOCALLY HEAVY RAINFALL...FREQUENT LIGHTNING...AND WINDS GUSTING TO NEAR 40 MPH WITH THIS LINE OF STORMS. LOCATIONS IN THE PATH OF THESE STORMS INCLUDE FLORENCE...LITTLEVILLE...TOWN CREEK...RUSSELLVILLE... PHIL CAMPBELL...AND LEXINGTON. RAINFALL AMOUNTS OF UP TO 2 INCHES ARE POSSIBLE. KTW
The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 7:54 AM CDT | Severe Thunderstorm Warning | HUN | Lauderdale | 51 min |
| May 17, 9:45 AM CDT | Severe Thunderstorm Warning | HUN | Colbert | 30 min |
| May 17, 10:06 AM CDT | Severe Thunderstorm Warning | HUN | Lauderdale, Lawrence | 24 min |
| May 17, 10:23 AM CDT | Severe Thunderstorm Warning | HUN | Limestone, Morgan | 37 min |
| May 17, 10:40 AM CDT | Tornado Warning | HUN | Limestone | 20 min |
| May 17, 10:45 AM CDT | Tornado Warning | HUN | Madison | 30 min |
| May 17, 11:02 AM CDT | Tornado Warning | HUN | Limestone | 13 min |
| May 17, 11:18 AM CDT | Tornado Warning | HUN | Madison | 27 min |
| May 17, 11:49 AM CDT | Severe Thunderstorm Warning | HUN | Madison | 26 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2003Every severe thunderstorm warning in 2003
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.