Marine Weather and Tide Forecast for Guntersville, AL
May 18, 2024 2:40 PM CDT (19:40 UTC) Change Location
 | Sunrise 5:38 AM Sunset 7:43 PM Moonrise 3:20 PM Moonset 3:01 AM |
Area Discussion for - Huntsville, AL
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FXUS64 KHUN 181929 AFDHUN
Area Forecast Discussion National Weather Service Huntsville AL 229 PM CDT Sat May 18 2024
New NEAR TERM, SHORT TERM
NEAR TERM
(Tonight)
Issued at 230 PM CDT Sat May 18 2024
A sfc low has brought a complex of storms through the TN Valley this afternoon. These storms have remained mostly sub-severe, however, a few severe-warned storms have emerged amongst climbing updrafts in response to sufficient instability throughout the area (2000+ J/kg). Lapse rates around 7.0 C/km have also supported frequent lightning. The main concern throughout this afternoon has been hail development, however, only dime to penny sized has been reported so far. Due to the storms continuing to move slowly, ponding of water on roads due to runoff may be possible as heavy rainfall moves over the area. With little shear support, tornadoes are not forecast at this time.
CAMs support a break in storms for a few hours before additional redevelopment this evening. With that redevelopment, it will likely be low- medium chances of showers (30-50%) with a low chance of producing lightning due to lack of remaining instability. Showers/storms should be fully out of the area by midnight. Low temperatures tonight are forecast to drop into the upper 50s/lower 60s. After storms clear out, cloud cover should clear out as well in some areas which will allow patchy fog development and subsequent decreased visibilities. Hazardous road conditions will be possible overnight into the early morning hours.
SHORT TERM
(Sunday through Tuesday)
Issued at 230 PM CDT Sat May 18 2024
After this low pressure system continues through the area and into the Carolinas, upper level ridging begins to influence the area and high sfc pressure filters in from the OH River Valley. This will allow dry and warm conditions through the latter half of the weekend and into the start of the work week, with highs in the 80s and lows in the 60s. With mostly clear skies, there will be little relief from the sun during the afternoon hours. Our Heat Risk in portions of the area on Tuesday is 'Moderate'. This means our level of heat may affect most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration.
LONG TERM
(Monday night through Friday)
Issued at 226 AM CDT Sat May 18 2024
Dry and warm conditions will continue into Tuesday, as upper level ridging amplifies over the area. Highs should approach 90 degrees in a few places. Lows should only drop into the mid 60s to near 70 Tue night.
A storm system forecast to form over the Rockies and adjacent High Plains over the weekend will head to the NE, reaching the Great Lakes on Wednesday. A cold front trailing south of it will move across the area on Wed. Moisture convergence and lift preceding it will return medium chances (30-50%) of showers and thunderstorms beginning Tue night. Unsettled weather with scattered showers and thunderstorms will remain in the forecast into Thursday. Overall storm strength should remain "general" with a risk of strong outflow wind gusts, heavy downpours, and sudden and/or frequent lightning. Even with more clouds and rain chances, high temperatures on Wed/Thu should range in the mid/upper 80s, and lows in the 60s.
AVIATION
(18Z TAFS)
Issued at 1230 PM CDT Sat May 18 2024
MVFR conditions should continue to prevail through the afternoon into the evening hours as storms continue through the TN Valley from the west, bringing lowered ceilings and periods of lowered visibilities. Overnight, depending on cloud cover, a low chance of patchy fog exists. If this is realized, lowered visibilities will continue to cause MVFR to IFR conditions at both terminals.
HUN WATCHES/WARNINGS/ADVISORIES
AL...None.
TN...None.
Area Forecast Discussion National Weather Service Huntsville AL 229 PM CDT Sat May 18 2024
New NEAR TERM, SHORT TERM
NEAR TERM
(Tonight)
Issued at 230 PM CDT Sat May 18 2024
A sfc low has brought a complex of storms through the TN Valley this afternoon. These storms have remained mostly sub-severe, however, a few severe-warned storms have emerged amongst climbing updrafts in response to sufficient instability throughout the area (2000+ J/kg). Lapse rates around 7.0 C/km have also supported frequent lightning. The main concern throughout this afternoon has been hail development, however, only dime to penny sized has been reported so far. Due to the storms continuing to move slowly, ponding of water on roads due to runoff may be possible as heavy rainfall moves over the area. With little shear support, tornadoes are not forecast at this time.
CAMs support a break in storms for a few hours before additional redevelopment this evening. With that redevelopment, it will likely be low- medium chances of showers (30-50%) with a low chance of producing lightning due to lack of remaining instability. Showers/storms should be fully out of the area by midnight. Low temperatures tonight are forecast to drop into the upper 50s/lower 60s. After storms clear out, cloud cover should clear out as well in some areas which will allow patchy fog development and subsequent decreased visibilities. Hazardous road conditions will be possible overnight into the early morning hours.
SHORT TERM
(Sunday through Tuesday)
Issued at 230 PM CDT Sat May 18 2024
After this low pressure system continues through the area and into the Carolinas, upper level ridging begins to influence the area and high sfc pressure filters in from the OH River Valley. This will allow dry and warm conditions through the latter half of the weekend and into the start of the work week, with highs in the 80s and lows in the 60s. With mostly clear skies, there will be little relief from the sun during the afternoon hours. Our Heat Risk in portions of the area on Tuesday is 'Moderate'. This means our level of heat may affect most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration.
LONG TERM
(Monday night through Friday)
Issued at 226 AM CDT Sat May 18 2024
Dry and warm conditions will continue into Tuesday, as upper level ridging amplifies over the area. Highs should approach 90 degrees in a few places. Lows should only drop into the mid 60s to near 70 Tue night.
A storm system forecast to form over the Rockies and adjacent High Plains over the weekend will head to the NE, reaching the Great Lakes on Wednesday. A cold front trailing south of it will move across the area on Wed. Moisture convergence and lift preceding it will return medium chances (30-50%) of showers and thunderstorms beginning Tue night. Unsettled weather with scattered showers and thunderstorms will remain in the forecast into Thursday. Overall storm strength should remain "general" with a risk of strong outflow wind gusts, heavy downpours, and sudden and/or frequent lightning. Even with more clouds and rain chances, high temperatures on Wed/Thu should range in the mid/upper 80s, and lows in the 60s.
AVIATION
(18Z TAFS)
Issued at 1230 PM CDT Sat May 18 2024
MVFR conditions should continue to prevail through the afternoon into the evening hours as storms continue through the TN Valley from the west, bringing lowered ceilings and periods of lowered visibilities. Overnight, depending on cloud cover, a low chance of patchy fog exists. If this is realized, lowered visibilities will continue to cause MVFR to IFR conditions at both terminals.
HUN WATCHES/WARNINGS/ADVISORIES
AL...None.
TN...None.
Northern Alabama,
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