Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 176, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jul 31, 2021, 6:18 PM CDT for Santa Rosa County, Florida. It was in force for 42 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
- Jul 31, 2021, 6:18 PM CDT (23:18 UTC)
- Expired
- Jul 31, 2021, 7:00 PM CDT
- In force
- 42 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Santa Rosa County, FL
The radar
The Mobile radar (KMOB), 110 km from the middle of the area, began a volume at 23:18 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 nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 11.3 hours before the alert went out and 254 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
- 2352 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 1020 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
154 WUUS54 KMOB 312318 SVRMOB FLC113-010000- /O.NEW.KMOB.SV.W.0176.210731T2318Z-210801T0000Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Mobile AL 618 PM CDT Sat Jul 31 2021 The National Weather Service in Mobile has issued a * Severe Thunderstorm Warning for... Central Santa Rosa County in northwestern Florida... * Until 700 PM CDT. * At 618 PM CDT, a severe thunderstorm was located over Point Baker, or 4 miles northwest of Milton, moving south at 15 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Pace, Milton, Bagdad, Floridatown, Point Baker and Pea Ridge. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3075 8712 3073 8701 3052 8699 3056 8721 TIME...MOT...LOC 2318Z 009DEG 12KT 3068 8709 HAIL...<.75IN WIND...60MPH $$
1 follow-up statement
768 WWUS54 KMOB 312339 SVSMOB Severe Weather Statement National Weather Service Mobile AL 639 PM CDT Sat Jul 31 2021 FLC113-010000- /O.CON.KMOB.SV.W.0176.000000T0000Z-210801T0000Z/ Santa Rosa FL- 639 PM CDT Sat Jul 31 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR CENTRAL SANTA ROSA COUNTY... At 639 PM CDT, a severe thunderstorm was located near Milton, moving south at 10 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Pace, Milton, Bagdad, Floridatown, Point Baker and Pea Ridge. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3075 8712 3073 8701 3052 8699 3056 8721 TIME...MOT...LOC 2339Z 009DEG 8KT 3065 8710 HAIL...<.75IN WIND...60MPH $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 12:18 PM CDT | Heat Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 31 hr |
| Jul 31, 5:51 PM CDT | Special Weather Statement | MOB | Escambia, Okaloosa, Santa Rosa | 39 min |
| Jul 31, 6:07 PM CDT | Severe Thunderstorm Warning | MOB | Escambia | 38 min |
| Jul 31, 6:31 PM CDT | Special Weather Statement | MOB | Okaloosa | 44 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2021Every severe thunderstorm warning in 2021
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.