Scattered thunderstorms brought a few impacts to the Florida panhandle with a report of a power line blown down in Calhoun county, as well as lightning striking a road in Walton county.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS TAE wrote it up.
Scattered thunderstorms brought a few impacts to the Florida panhandle with a report of a power line blown down in Calhoun county, as well as lightning striking a road in Walton county.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tallahassee, FL wrote its last area forecast discussion before the first event at May 10, 4:47 AM CST, 1 hour 43 minutes earlier.
Area Forecast Discussion National Weather Service Tallahassee FL 647 AM EDT Mon May 10 2021 .AVIATION... [Through 12Z Tuesday] Lower CIGs have moved into the region this morning, with TLH and VLD observing MVFR to LIFR CIGs over the last several hours. These lower CIGs and some lower Vsbys are also expected to continue across TLH and VLD this morning as increased moisture is present across the eastern Florida Big Bend this morning thanks to the moisture advection that occurred during the day on Sunday. These conditions are expected to continue through much of the period with showers and thunderstorms moving into/developing across the region later this morning and into the afternoon hours. A line of showers and thunderstorms is expected to move through later this morning, which will briefly lower CIGs and vsbys at ECP, DHN, and ABY over the next 3-4 hours. Model guidance is still uncertain whether these storms will maintain themselves to TLH and VLD; however, showers and thunderstorms are expected to develop later this afternoon across these Terminals. && .PREV DISCUSSION [337 AM EDT]... .NEAR TERM [Through Tonight]... An approaching cold front today will lead to the potential for showers and thunderstorms throughout the region later this morning and into the afternoon and evening hours. Model guidance from the NAM3K has been keen on driving initial storms currently over southern Mississippi through SE Alabama by mid morning, which will follow by another round of multicellular activity throughout the afternoon hours across much of the region along the cold front. The HRRR; however, has been consistently depicting the current storm activity over Mississippi diving south into the Gulf, which would create a shadow of stratiform rain and an upper level cirrus deck across the region, which seems to inhibit most afternoon thunderstorm activity across the region. This has been observed in several model runs of the HRRR, and clearly shows a cold pool dominant environment across coastal Alabama and extreme western portions of the Florida Panhandle throughout much of the day. Given the model disagreement, there is some uncertainty on the overall evolution of showers and thunderstorms throughout the day today; however, chances of rain still remain high, especially across the Florida Panhandle and SE Alabama. Storm development east of the Apalachicola river seems to be the largest question for later this afternoon. If enough breaks in the clouds can develop, there should be sufficient instability across this portion of the forecast area, as dewpoints have surged into the upper 60s and low 70s. This instability coupled with vorticity maxima propagating along the predominantly zonal flow pattern should aid in thunderstorms later this afternoon; however, given the HRRRs consistency there is still some uncertainty in development. Overall if storms do develop later this afternoon, the main threats associated with these storms would be strong gusty severe winds at times, and severe hail up to the size of quarters. .SHORT TERM [Tuesday Through Wednesday]... Position of the front Tuesday morning will be draped through southeast Alabama and southern Georgia with little movement through the day. Instability of around 1500 J/kg cape will extend through our area by late Tuesday morning. Shear values will be around 30 knots through the day and slightly increase Tuesday night. Models dont show much fanfare Tuesday morning but with the approach of a shortwave trough and associated forcing, showers and storms do increase in the afternoon and overnight hours. SPC has our area outlooked in a marginal risk Tuesday with main threats of strong winds and isolated large hail. The front does make a run for the coast Wednesday with showers and storms continuing. .LONG TERM [Wednesday Night Through Monday]... Wednesday night the front gets a push finally into the Gulf waters by upstream shortwave energy. Decent rain chances remain through Thursday morning with chances decreasing from west to east Thursday afternoon. A little elevated instability will remain while surface instability is shunted south into the Gulf waters so still have a mention of thunder Wednesday night into Thursday. Friday into the weekend appear quiet with surface high pressure ridging building in and troughing down the east coast. Moisture is back on the increase for Monday with easterly flow and a consolidating upstream storm system. Thursday highs will be cool in the upper 60s to mid 70s with an overall warming trend through the weekend with highs back in the mid 80s by Sunday. .MARINE... A cold front will slowly make its way into the Gulf waters by Wednesday. Light to moderate south winds are expected through Wednesday then winds turn to the northeast behind the front beginning Thursday with winds ticking up to moderate levels and seas increasing to 2 to 3 feet. Shower and thunderstorm chances will remain each day through Thursday then a drying trend beginning Friday. .FIRE WEATHER... A wet pattern will take over much of the region today. High dispersions are expected across the extreme eastern Florida Big Bend and portions of Georgia predominantly along and east of I75. Given the wet pattern; however, there are no fire weather concerns for the next several days as this pattern will be lingering across the region. .HYDROLOGY... An increase in volumes coming out of Woodruff Dam has pushed the Apalachicola River at Blountstown into low-end minor flood. The river is expected to crest in the next several hours then fall back below flood stage later today. The next several days will bring good chances for showers and thunderstorms to the area as a slow moving cold front inches into the Gulf waters by Thursday. During this time, rainfall amounts will average 1-3 inches with the heavier amounts trending north and west of Marianna to Albany line. Of note, the past 24 hour trends in QPF have increased throughout the area north of the eastern Florida Big Bend with the biggest increases west of the aforementioned line. Not out of the realm of possibility is locally heavier amounts on the order of 4+ inches in southeast Alabama and western Florida panhandle, which is plausible given the slow frontal movement, high PWs, and several hi res models depicting recent uptick in rainfall amounts. .SPOTTER INFORMATION STATEMENT... Spotter activation is not requested. However, spotters are always encouraged to safely report significant weather conditions when they occur (while following all local, state, and CDC guidelines) by calling the office or tweeting us @NWSTallahassee. && .PRELIMINARY POINT TEMPS/POPS... Tallahassee 84 68 86 68 84 / 70 30 50 20 50 Panama City 80 70 82 70 81 / 40 20 40 20 40 Dothan 78 66 83 65 78 / 100 20 60 50 70 Albany 82 67 86 65 77 / 60 20 60 50 70 Valdosta 85 67 87 67 82 / 80 20 50 30 60 Cross City 86 69 88 68 88 / 20 20 30 10 30 Apalachicola 81 70 82 70 81 / 30 20 30 10 30 && .TAE WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. AL...None. GM...None. && NEAR TERM...Bunker SHORT TERM...Scholl LONG TERM...Scholl AVIATION...Bunker MARINE...Scholl FIRE WEATHER...Bunker HYDROLOGY...Scholl
Special Weather Statement
National Weather Service Tallahassee FL
625 AM CDT Mon May 10 2021
ALZ068-FLZ007>009-108-101230-
Geneva AL-Central Walton FL-Holmes FL-South Walton FL-
North Walton FL-
625 AM CDT Mon May 10 2021
...SIGNIFICANT WEATHER ADVISORY FOR GENEVA...WALTON AND WESTERN
HOLMES COUNTIES UNTIL 730 AM CDT...
At 625 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles north of Lockhart to 7 miles southwest
of Laurel Hill to near Bagdad. Movement was east at 50 mph.
Wind gusts up to 50 mph will be possible with these storms.
Locations impacted include...
Santa Rosa Beach, De Funiak Springs, Geneva, Hartford, Slocomb,
Samson, Eglin Air Force Base, Union, Liberty, Freeport, Paxton, Ponce
De Leon, Westville, Coffee Springs, Black, Oakwood Hills, Cluster
Springs, Kellys Crossroads, Villa Tasso and Cerrogordo.
LAT...LON 3038 8633 3045 8631 3048 8632 3046 8639
3099 8639 3100 8619 3119 8619 3120 8549
3049 8613 3045 8619 3033 8628 3035 8639
3040 8639
TIME...MOT...LOC 1125Z 268DEG 45KT 3115 8635 3089 8655 3056 8700
25-CAMPSpecial Weather Statement
National Weather Service Tallahassee FL
824 AM EDT Mon May 10 2021
ALZ068-069-FLZ008>012-108-112-101330-
Geneva AL-Houston AL-Coastal Bay FL-Central Walton FL-Holmes FL-
Inland Bay FL-South Walton FL-Jackson FL-Washington FL-
824 AM EDT Mon May 10 2021
...SIGNIFICANT WEATHER ADVISORY FOR EASTERN GENEVA...SOUTH CENTRAL
HOUSTON...WESTERN JACKSON...NORTHWESTERN BAY...SOUTHERN WALTON...
HOLMES AND WASHINGTON COUNTIES UNTIL 930 AM EDT/830 AM CDT/...
At 824 AM EDT/724 AM CDT/, Doppler radar was tracking strong
thunderstorms along a line extending from near Hartford to 12 miles
east of De Funiak Springs to near Eglin Air Force Base. Movement was
east at 45 mph.
Wind gusts up to 50 mph will be possible with these storms.
Locations impacted include...
Cottonwood, Vernon, Santa Rosa Beach, Bonifay, Chipley, Graceville,
Dothan, Hartford, Taylor, Ashford, Slocomb, Cowarts, Eglin Air Force
Base, Bradford, Live Oak, Freeport, Malvern, Rehobeth, Cottondale and
Ponce De Leon.
LAT...LON 3038 8633 3042 8631 3039 8626 3040 8623
3042 8627 3039 8611 3044 8616 3047 8613
3046 8619 3050 8620 3046 8639 3053 8639
3076 8594 3119 8574 3119 8525 3071 8530
3020 8603 3031 8639 3040 8640
TIME...MOT...LOC 1224Z 273DEG 38KT 3117 8575 3076 8592 3057 8623
25-CAMPThe Eglin Afb radar (KEVX), 33 km away, was scanning. The volume nearest the first event began at 12:31 UTC.
1 lightning, 1 thunderstorm wind. Local standard time, as filed.
An accident occurred on I-10 near mile marker 81 due to lightning striking the road and sending debris through the windshield of a pickup truck. Two injuries resulted.
A power line was reported down near 11548 NW County Road 274.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2021Every state in 2021This day in weather historyWarnings in Florida, May 2021
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 950242, 950243.