Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

December 10, 2021Santa Rosa County, Florida

NWS Mobile, AL issued this special weather statement at Dec 10, 2021, 1:16 AM CST for Santa Rosa County, Florida. It was in force for 44 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: Dec 10, 2021, 1:16 AM CST (07:16 UTC)
Expired: Dec 10, 2021, 2:00 AM CST
In force: 44 min
Issued by: NWS Mobile, AL
Hail: 0.00 in
Wind: 40

County Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 91 km from the middle of the area, began a volume at 07:18 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

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 7.3 hours before the alert went out and 243 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 659 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 118 m²/s²
0-3 km storm-relative helicity: 136 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

624 
WWUS84 KMOB 100716
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
116 AM CST Fri Dec 10 2021
 
ALZ059-FLZ203-205-100800-
Escambia AL-Okaloosa Inland FL-Santa Rosa Inland FL-
116 AM CST Fri Dec 10 2021

...A strong thunderstorm will impact portions of southeastern
Escambia, northwestern Okaloosa and northeastern Santa Rosa Counties
through 200 AM CST...

At 116 AM CST, National Weather Service doppler radar indicated a
strong thunderstorm 13 miles northeast of Roeville, or 17 miles
northeast of Milton, moving northeast at 20 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

This storm will remain over mainly rural areas of southeastern
Escambia, northwestern Okaloosa and northeastern Santa Rosa Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 3076 8695 3088 8701 3109 8672 3106 8670
      3100 8670 3100 8669 3099 8669 3099 8665
      3089 8657
TIME...MOT...LOC 0716Z 235DEG 19KT 3085 8690 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 9, 8:37 PM CST	Areal Flood Advisory	MOB	Mobile	3 hr
Dec 9, 9:38 PM CST	Special Weather Statement	MOB	Mobile	52 min
Dec 9, 10:34 PM CST	Areal Flood Advisory	MOB	Baldwin	3 hr
Dec 9, 11:17 PM CST	Dense Fog Advisory	MOB	Baldwin, Mobile	10 hr
Dec 9, 11:34 PM CST	Flash Flood Warning	MOB	Baldwin	6 hr
Dec 10, 6:23 AM CST	River Flood Warning	MOB	Baldwin	25 hr
Dec 10, 11:10 AM CST	Special Weather Statement	MOB	Washington	50 min
Dec 10, 1:19 PM CST	Dense Fog Advisory	MOB	Baldwin, Mobile	19 hr
Dec 10, 1:19 PM CST	Marine Dense Fog Advisory	MOB		22 hr
Dec 10, 2:21 PM CST	Small Craft Advisory	MOB		42 hr
Dec 10, 12:01 AM CST	Areal Flood Advisory	MOB	Escambia, Santa Rosa	3 hr
Dec 10, 2:05 AM CST	Areal Flood Advisory	MOB	Okaloosa	3 hr

Nearby

Special Weather Statements in Florida, 2021 Every special weather statement 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.