Alert archive / North Dakota / Flash Flood Warnings in 1996

Flash Flood Warning 2, NWS Bismarck, ND

July 20, 1996Pierce County, North Dakota

NWS Bismarck, ND issued this flash flood warning at Jul 20, 1996, 4:27 AM CDT for Pierce County, North Dakota. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 20, 1996, 4:27 AM CDT (09:27 UTC)
Expired
Jul 20, 1996, 5:00 AM CDT
In force
33 min
Issued by
NWS Bismarck, ND
Area
Whole counties

County Pierce County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 9.5 hours before the alert went out and 173 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-pSkew-T log-p diagram, Bismarck Municip, ND at 00:00Z on 1996-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 1996-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
23 J/kg
Mixed-layer CIN
-334 J/kg
Mixed-layer LCL
1567 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, Jul 20, 3:53 AM CDT, 34 minutes before
NDZ017-031-032-200930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLISTON ND
352 AM CDT (252 AM MDT) SAT JUL 20 1996

...THE SEVERE THUNDERSTORM WARNING FOR GOLDEN VALLEY...BILLINGS AND
SOUTHERN MCKENZIE COUNTIES HAS EXPIRED...
...THE TORNADO WATCH FOR CENTRAL AND NORTHWEST NORTH DAKOTA HAS BEEN CAN
L
AT 245 AM MDT...RADAR INDICATED THAT THE THUNDERSTORM THAT PROMPTED THE
WARNING FOR BILLINGS...GOLDEN VALLEY AND SOUTHERN MCKENZIE COUNTIES HAS
WEAKENED AND MOVED OUT OF THE WARNED AREA...SO THE WARNING HAS BEEN
ALLOWED TO EXPIRE. NO SEVERE REPORTS WERE RECEIVED WITH THIS STORM.

CARICO

&

The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 19, 7:07 PM CDTSevere Thunderstorm WarningBISWilliams68 min
Jul 20, 12:26 AM CDTSevere Thunderstorm WarningBISBurke, Mountrail64 min
Jul 20, 1:10 AM CDTSevere Thunderstorm WarningBISRenville, Ward65 min
Jul 20, 2:38 AM CDTSevere Thunderstorm WarningBISBillings, Golden Valley, McKenzie67 min
Jul 20, 3:22 AM CDTSevere Thunderstorm WarningBISStark38 min
Jul 20, 4:27 AM CDTSevere Thunderstorm WarningBISPierce33 min

Nearby

Flash Flood Warnings in North Dakota, 1996Every flash flood warning in 1996

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.