Alert archive / Mississippi / Flash Flood Warnings in 2026
Flash Flood Warning 3, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at May 21, 2026, 6:02 PM CDT for Stone County, Mississippi. It was in force for 118 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 21, 2026, 6:02 PM CDT (23:02 UTC)
- Expired
- May 21, 2026, 8:00 PM CDT
- In force
- 118 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Stone County, MS
The radar
The Mobile radar (KMOB), 97 km from the middle of the area, began a volume at 23:01 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 11.0 hours before the alert went out and 83 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
- 1089 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 722 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.1
The text
As transmitted.
613
WGUS54 KMOB 212302
FFWMOB
MSC131-220100-
/O.NEW.KMOB.FF.W.0003.260521T2302Z-260522T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
602 PM CDT Thu May 21 2026
The National Weather Service in Mobile has issued a
* Flash Flood Warning for...
Northwestern Stone County in southeastern Mississippi...
* Until 800 PM CDT.
* At 602 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Wiggins, Perkinston, Bond, Ten Mile, Texas and Big Level.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 3074 8934 3091 8934 3091 8932 3091 8931
3091 8930 3091 8929 3091 8928 3091 8927
3091 8923 3091 8922 3091 8912 3091 8911
3091 8909 3091 8905 3076 8905
FLASH FLOOD...RADAR INDICATED
$$1 follow-up statement
744
WGUS74 KMOB 220055
FFSMOB
Flash Flood Statement
National Weather Service Mobile AL
755 PM CDT Thu May 21 2026
MSC131-220105-
/O.EXP.KMOB.FF.W.0003.000000T0000Z-260522T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Stone MS-
755 PM CDT Thu May 21 2026
...FLASH FLOOD WARNING WILL EXPIRE AT 8 PM CDT THIS EVENING FOR
NORTHWESTERN STONE COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
&&
LAT...LON 3074 8934 3091 8934 3091 8932 3091 8931
3091 8930 3091 8929 3091 8928 3091 8927
3091 8923 3091 8922 3091 8912 3091 8911
3091 8909 3091 8905 3076 8905
$$What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Mobile, AL wrote its last area forecast discussion before this flash flood warning went out at May 21, 2:59 PM CDT, 3 hours 3 minutes earlier. Its key messages:
- Issued at 256 PM CDT Thu May 21 2026
- High rain chances will be in place through the weekend and into early next week, especially over the western half of the forecast area.
- A conditional severe threat may materialize Friday morning. A brief tornado or two cannot be ruled out.
Area forecast discussion, May 21, 2:59 PM CDT, 3 hours 3 minutes before
Area Forecast Discussion National Weather Service Mobile AL 259 PM CDT Thu May 21 2026 ...New MARINE... .KEY MESSAGES... Issued at 256 PM CDT Thu May 21 2026 - High rain chances will be in place through the weekend and into early next week, especially over the western half of the forecast area. - A conditional severe threat may materialize Friday morning. A brief tornado or two cannot be ruled out. && .DISCUSSION... Issued at 144 PM CDT Thu May 21 2026 A southwesterly flow pattern aloft is expected to continue through the period as an active subtropical jet remains in place along and west of our local area. Several shortwaves, embedded within the subtropical jet, will quickly pass near/over the area over the next several days. With the shortwaves moving overhead, along with deep moisture in place (PWATs generally ranging around 1.7-2.0 inches) and strong destabilization occurring each day due to diurnal heating, shower and thunderstorm development is expected each day through the period. Highest rain chances look to occur during the late morning/afternoon hours each day, and best coverage looks to be over interior counties west of I-65 (due to the closer proximity to the subtropical jet). It should be noted that guidance has trended a bit higher on shear values for late tonight and into tomorrow morning as a more stout shortwave passes overhead and a 30-40kt LLJ develops. If storms are able to fire by or a little after daybreak (when the best overlap of the LLJ and instability looks to occur), there may be a brief, yet conditional, window where severe storms may be possible. Storms that are able to organize may be mini-spinny in nature due to weak storm relative inflow, moist boundary-layer conditions, and curved low- level hodographs, and therefore, cannot rule out a few brief spin- ups generally between the 6AM-12PM timeframe. The LLJ should begin to lift out of the area during the afternoon hours, helping to reduce the tornado risk throughout the day. Outside of tomorrow morning's potential, the potential for organized severe weather lessens as shear profiles weaken. With limited shear, storms will become more pulse-like in nature. That being said, as we typically see with this type of pattern, cannot rule out a few stronger storms capable of producing gusty downburst winds and small hail, as well as frequent lightning. It should be noted that the slow-moving nature of these storms, as well as the deep moisture in place, may lead to storms being efficient rainfall producers. If a few storms manage to train over the same areas, cannot rule out some localized flooding concerns. Highs each day will generally be in the mid to upper 80s. Lows will be very mild and humid, with temperatures only dropping into the upper 60s to low 70s inland and the low to mid 70s closer to the coast. A Moderate Risk of rip currents will be in place through the remainder of the week and into the weekend. /96 && .AVIATION... (18Z TAFS) Issued at 144 PM CDT Thu May 21 2026 Scattered to numerous showers and storms are expected mainly west of I-65 through this afternoon before diminishing this evening. Additional showers and storms are anticipated to spread into southeast Mississippi and southwest Alabama late tonight and continue developing further east Friday morning. IFR/MVFR conditions and gusty winds will accompany the stronger storms. Otherwise, predominately VFR conditions outside of the convection lower to IFR/MVFR overnight then improve somewhat to MVFR Friday morning. Southeasterly winds 5-10 knots diminish to 5 knots or less this evening, then a southerly flow near 10 knots develops Friday morning. /29 && .MARINE... Issued at 256 PM CDT Thu May 21 2026 Light to moderate southeasterly flow will prevail through this weekend and into early next week. Seas will generally be 1 to 3 feet. No impacts are expected other than locally higher winds and seas possible near thunderstorms. /96 && .PRELIMINARY POINT TEMPS/POPS... Mobile 72 83 72 86 / 70 80 30 70 Pensacola 74 83 74 85 / 40 80 30 60 Destin 75 83 74 84 / 20 50 30 30 Evergreen 71 84 70 86 / 30 80 40 70 Waynesboro 70 82 69 86 / 60 90 60 80 Camden 69 82 70 85 / 50 90 40 70 Crestview 71 85 71 87 / 20 50 30 60 && .MOB WATCHES/WARNINGS/ADVISORIES... AL...None. FL...None. MS...None. GM...None. &&
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 5:28 PM CDT | Areal Flood Advisory | MOB | Stone | 3 hr |
Nearby
Flash Flood Warnings in Mississippi, 2026Every flash flood warning in 2026
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.